CN113675858A

CN113675858A - Reactive compensation control method and device, storage medium and equipment

Info

Publication number: CN113675858A
Application number: CN202110941428.6A
Authority: CN
Inventors: 李连弟; 郭长兴; 林涛; 王晓琳
Original assignee: Guangdong Yuegui Intelligent Engineering Research Institute Co ltd; Guangdong Dedi Electromechanical Equipment Co ltd
Current assignee: Guangdong Yuegui Intelligent Engineering Research Institute Co ltd; Guangdong Dedi Electromechanical Equipment Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2021-11-19
Anticipated expiration: 2041-08-16
Also published as: CN113675858B

Abstract

The invention discloses a reactive compensation control method, a device, a storage medium and equipment, wherein the reactive compensation control method comprises the steps of acquiring circuit parameters of a current three-phase circuit in real time, and calculating capacitance switching parameters of the current three-phase circuit according to the circuit parameters; determining to switch a capacitor on the current three-phase circuit according to the capacitor switching parameters; and determining a target switching capacitor according to the running time, the capacitance temperature and the switching times of a plurality of capacitors to be switched in the current three-phase circuit, and controlling the target switching capacitor to be switched into the current three-phase circuit. The method comprises the steps of determining a target switching capacitor according to the operation time, the capacitor temperature and the switching times of a switching capacitor in the current three-phase circuit, so that the use duration, the temperature and the service life of each capacitor are more balanced, the use times of a high-frequency capacitor are reduced, the service life of the capacitor is prolonged, and the normal operation of a power supply system is ensured.

Description

Reactive compensation control method and device, storage medium and equipment

Technical Field

The invention relates to the field of control and power grid, in particular to a reactive compensation control method, a reactive compensation control device, a reactive compensation storage medium and reactive compensation equipment.

Background

The power capacitor reactive compensator is used as a compensation device, plays a role in a power supply system in improving the power factor of a power grid, reducing the loss of a power supply transformer and a transmission line, improving the power supply efficiency and improving the power supply environment. The power capacitive reactive power compensation device is therefore in an indispensable and very important position in the power supply system. And the power capacitance reactive compensator completes reactive compensation logic judgment according to the power factor of the power supply line, drives the capacitor to switch, and completes reactive compensation. According to the specific situation of three-phase reactive power, the three-phase reactive power is divided into capacitor bank common compensation switching and capacitor bank component compensation switching, the common compensation can carry out synchronous compensation on a three-phase line, but in the situation of three-phase unbalance, the partial compensation is required to be adopted to carry out compensation on at least one phase, and the required capacitance is large. Capacitor 'sequential switching' method is generally adopted in the use places with large power factor fluctuation, the use frequency of part of capacitors is high, and the service life is shortened.

Disclosure of Invention

In order to overcome at least one of the defects in the prior art, the invention aims to provide a cutter, a machining device and a machine tool, which solve the problems of large distributed input capacitance, high use frequency of partial capacitors and short service life.

The purpose of the application is realized by adopting the following technical scheme:

the embodiment of the application provides a reactive compensation control method, which comprises the following steps:

acquiring circuit parameters of the current three-phase circuit in real time, and calculating capacitance switching parameters of the current three-phase circuit according to the circuit parameters;

determining to switch a capacitor on the current three-phase circuit according to the capacitor switching parameters;

and determining a target switching capacitor according to the running time, the capacitance temperature and the switching times of a plurality of capacitors to be switched in the current three-phase circuit, and controlling the target switching capacitor to be switched into the current three-phase circuit.

Optionally, the circuit parameters include voltage, current and temperature of each phase in the current three-phase circuit; the calculating of the capacitance switching parameters of the current three-phase circuit according to the circuit parameters comprises the following steps:

and calculating power factors, three-phase unbalance and harmonic waves of each phase of the current three-phase circuit according to the circuit parameters, wherein the capacitor switching parameters comprise the power factors, the three-phase unbalance and the harmonic waves.

Optionally, the determining to switch the capacitor to the current three-phase circuit according to the capacitor switching parameter includes:

comparing the power factor with a preset power factor input threshold value, and judging whether the power factor is smaller than the preset power factor input threshold value;

when the power factor is smaller than the preset power factor input threshold, comparing the three-phase unbalance with a preset three-phase unbalance threshold;

and when the power factor is larger than the preset power factor input threshold, determining a target switching capacitor according to the running time, the capacitor temperature and the switching times of the capacitor to be switched, and controlling the target switching capacitor to be switched into the current three-phase circuit.

Optionally, the determining a target switching capacitor according to the operation time, the capacitance temperature and the switching frequency of a plurality of capacitors to be switched in the current three-phase circuit, and controlling the target switching capacitor to be switched into the current three-phase circuit includes:

when the three-phase unbalance is greater than or equal to the three-phase unbalance threshold, putting in a co-compensation capacitor according to a co-compensation capacitor switching control strategy;

and when the three-phase unbalance is smaller than the three-phase unbalance threshold, adding the sub-compensation capacitor according to a sub-compensation capacitor switching control strategy.

Optionally, the inputting of the common compensation capacitor according to the common compensation capacitor switching control strategy includes:

and controlling the three-phase capacitor to compensate the capacitor for the whole current three-phase circuit.

Optionally, the inputting of the sub-compensation capacitor according to the sub-compensation capacitor switching control strategy includes:

and determining the phase with the power factor smaller than the preset power factor input threshold value as a target phase of an input capacitor in the current three-phase circuit, and controlling the single-phase capacitor to be input into the circuit of the target phase.

Optionally, after the adding of the common compensation capacitor according to the common compensation capacitor switching control strategy, the method includes:

calculating power factors in the three-phase circuit after the common compensation, and comparing the power factors in the three-phase circuit after the common compensation with a preset power factor input threshold;

when the power factor in the three-phase circuit after the common compensation is larger than the preset power factor input threshold, determining a target input-switching capacitor according to the operation time, the capacitor temperature and the switching times of the capacitor to be switched, and controlling the target switching capacitor to be input into the current three-phase circuit;

and when the power factor in the three-phase circuit after the common compensation is smaller than or equal to the preset power factor input threshold, repeating the step of switching the common compensation capacitor according to the common compensation capacitor switching control strategy.

Optionally, after the sub-compensation capacitor is put into the sub-compensation capacitor switching control strategy according to the sub-compensation capacitor switching control strategy, the method includes:

calculating power factors in the three-phase circuit after the division and the compensation, and comparing the power factors in the three-phase circuit after the division and the compensation with a preset power factor input threshold;

when the power factor in the three-phase circuit after the division compensation is larger than the preset power factor input threshold, determining a target input-cut capacitor according to the operation time, the capacitor temperature and the switching times of the capacitor to be switched, and controlling the target input-cut capacitor to be switched into the current three-phase circuit;

and when the power factor in the three-phase circuit after the sub-compensation is smaller than or equal to the preset power factor input threshold, repeating the step of inputting the sub-compensation capacitor according to the sub-compensation capacitor switching control strategy.

comparing the power factor with a preset power factor cut-off threshold value, and judging whether the power factor is larger than the preset power factor cut-off threshold value;

when the power factor is larger than or equal to the preset power factor input threshold, comparing the three-phase unbalance with a preset three-phase unbalance threshold;

and when the power factor is smaller than the preset power factor cut-off threshold value, determining a target switching capacitor according to the running time, the capacitor temperature and the switching frequency of the capacitor to be switched, and controlling the target switching capacitor to be switched into the current three-phase circuit.

when the three-phase unbalance is greater than or equal to the three-phase unbalance threshold, cutting off the common compensation capacitor according to a common compensation capacitor switching control strategy;

and when the three-phase unbalance is smaller than the three-phase unbalance threshold, inputting a cut capacitor according to a split compensation capacitor switching control strategy.

and controlling the power failure of the capacitor of the compensation capacitor of the whole current three-phase circuit.

Optionally, the cutting of the branch compensation capacitor according to the branch compensation capacitor switching control strategy includes:

and determining the phase with the power factor smaller than the preset power factor cut threshold value as a target phase of a cut capacitor in the current three-phase circuit, and controlling the single-phase capacitor to be cut from the circuit of the target phase.

Optionally, after the common compensation capacitor is cut according to the common compensation capacitor switching control strategy, the method includes:

calculating power factors in the three-phase circuit after the common compensation capacitor is cut off, and comparing the power factors in the three-phase circuit after the common compensation capacitor is cut off with a preset power factor input threshold;

when the power factor in the three-phase circuit after the common compensation is smaller than the preset power factor cut threshold, determining a target switching capacitor according to the running time, the capacitor temperature and the switching frequency of the capacitor to be switched, and controlling the target switching capacitor to be switched into the current three-phase circuit;

and when the power factor in the three-phase circuit after the common compensation is greater than or equal to the preset power factor removal threshold, repeating the step of removing the common compensation capacitor according to the common compensation capacitor switching control strategy.

Optionally, after the dividing and supplementing capacitor is cut off according to the dividing and supplementing capacitor switching control strategy, the method includes:

calculating power factors in the three-phase circuit after the partial compensation capacitor is cut off, and comparing the power factors in the three-phase circuit after the partial compensation capacitor is cut off with a preset power factor input threshold;

when the power factor in the three-phase circuit after the division compensation capacitor is cut off is smaller than the preset power factor cut-off threshold value, stopping the running time, the capacitor temperature and the switching frequency of the capacitor to be switched, determining a target switching capacitor, and controlling the target switching capacitor to be switched into the current three-phase circuit;

and when the power factor in the three-phase circuit after the sub-compensation capacitor is cut off is smaller than or equal to the preset power factor cut-off threshold value, repeating the step of cutting off the sub-compensation capacitor according to a sub-compensation capacitor switching control strategy.

Optionally, the capacitor to be switched comprises a capacitor to be switched which is connected and disconnected in the current three-phase circuit and a capacitor to be switched which is connected and electrified in the current three-phase circuit; the method for determining a target switching capacitor according to the running time, the capacitance temperature and the switching times of a plurality of capacitors to be switched in the current three-phase circuit and controlling the target switching capacitor to be switched in the current three-phase circuit comprises the following steps:

sequentially comparing the running time, the capacitance temperature and the switching times of each capacitor to be switched, and taking the capacitor to be switched with the minimum running time, the minimum capacitance temperature and the minimum switching times as a target capacitor to be switched; controlling the target input capacitor to input the current three-phase circuit;

and/or sequentially comparing the running time, the capacitance temperature and the switching times of each capacitor to be switched, and taking the capacitor to be switched with the longest running time, the highest capacitance temperature and the greatest switching times as a target capacitor to be switched; controlling the target cutting capacitor to cut from the current three-phase circuit.

Optionally, the preset three-phase unbalance threshold is 15%.

Optionally, the controlling the target switching capacitor to be put into the current three-phase circuit includes:

determining first input capacitor information for inputting the current three-phase circuit and/or first cut capacitor information for cutting the current three-phase circuit based on user operation;

controlling a capacitor corresponding to the first input capacitor information to input the current three-phase circuit according to the first input capacitor information;

and/or controlling the capacitor corresponding to the first cut capacitor information to be cut from the current three-phase circuit according to the first cut capacitor information.

Optionally, before the controlling the target switching capacitor to be put into the current three-phase circuit, the method further includes:

receiving control information sent by a server, and analyzing the control information;

determining first input capacitor information of the current three-phase circuit and/or first cut capacitor information of the current three-phase circuit;

The embodiment of the present application further provides a reactive compensation control device, including:

the data detection module is used for detecting three-phase circuit parameters in the current circuit in real time and sending the three-phase circuit parameters to the control module;

the control module is used for acquiring the circuit parameters of the current three-phase circuit in real time and calculating the capacitance switching parameters of the current three-phase circuit according to the circuit parameters; determining to switch a capacitor on the current three-phase circuit according to the capacitor switching parameters; determining a target switching capacitor according to the operation time, the capacitor temperature and the switching times of a plurality of capacitors to be switched which are connected and powered off in the current three-phase circuit; sending the switching information of the target switching capacitor to a switching driving module;

and the switching driving module is used for controlling the target switching capacitor to switch on/off the current three-phase circuit according to switching.

Optionally, the system further comprises a power supply module electrically connected with the control module, wherein the power supply module is used for supplying power to the control module.

Optionally, the power supply further comprises a data storage module electrically connected to the control module, and the data storage module is configured to store one or more of the current circuit parameter, the capacitor switching parameter, the operating time of the capacitor to be switched, the capacitor temperature, the switching times, the capacitor information, the three-phase imbalance threshold, the preset power factor input, and the cut-off threshold.

Optionally, a communication module electrically connected with the control module is further included,

the communication module is used for receiving control information sent by a server and sending the control information to the control module; or the three-phase circuit parameters sent by the control module are sent to a server;

the control module is also used for receiving control information sent by the server and analyzing the control information; determining first input capacitor information of the current three-phase (generally, three-phase circuit is not three-phase) circuit and/or cutting first cut capacitor information of the current three-phase circuit; controlling a capacitor corresponding to the first input capacitor information to be input into the current three-phase circuit according to the first input capacitor information; and/or controlling the capacitor corresponding to the first cut capacitor information to be cut from the current three-phase circuit according to the first cut capacitor information.

Optionally, the mobile terminal further comprises a display module electrically connected to the control module, and the display module is configured to display data transmitted by the control module.

Optionally, an interaction module electrically connected with the control module is further included,

the interaction module is used for responding to the operation of a user, and determining first input capacitor information of the current three-phase circuit and/or cutting first cut capacitor information of the current three-phase circuit; and sending the first input capacitor information and/or the first cut capacitor information to a control module; or determining a three-phase unbalance threshold value input by a user, and a preset power factor input and removal threshold value;

the control module is further used for controlling the capacitor corresponding to the first input capacitor information to be input into the current three-phase circuit according to the first input capacitor information; and/or controlling the capacitor corresponding to the first cut capacitor information to be cut from the current three-phase circuit according to the first cut capacitor information.

Optionally, the switching driving module is provided with a plurality of first circuit output interfaces, and part of the first circuit output interfaces are connected with the capacitor to be switched.

Optionally, the data detection module includes a temperature detection module, a voltage detection module, and a current detection module;

the temperature detection module is used for detecting the temperature of the capacitor to be switched;

the voltage detection module and the current detection module are used for detecting the voltage and the current of the three-phase circuit; the three-phase circuit parameters comprise the temperature, the voltage and the current of the capacitor to be switched.

Optionally, the temperature detection module is provided with a plurality of second circuit output interfaces, and part of the second circuit output interfaces are connected with the capacitor to be switched.

Optionally, the control module is provided with a plurality of communication interfaces, and the communication interfaces are used for a terminal device to be accessed.

Optionally, the preset three-phase unbalance threshold is 15%.

The embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored on the storage medium, and when the program is executed by a processor, the steps of the reactive compensation control method according to any embodiment of the present application are implemented.

The embodiment of the present application further provides a computer device, which includes a memory, a processor, and a computer program stored on the memory and capable of running on the processor, and when the processor executes the program, the steps of the reactive compensation control method according to any embodiment of the present application are implemented.

According to the reactive compensation control method, the reactive compensation control device, the storage medium and the equipment, the reactive compensation control method comprises the steps of obtaining circuit parameters of a current three-phase circuit in real time, and calculating capacitance switching parameters of the current three-phase circuit according to the circuit parameters; determining a switching capacitor for the current three-phase circuit according to the capacitor switching parameters; and determining a target switching capacitor according to the running time, the capacitance temperature and the switching times of a plurality of capacitors to be switched in the current three-phase circuit, and controlling the target switching capacitor to be switched into the current three-phase circuit. The method comprises the steps of determining a target switching capacitor according to the operation time, the capacitor temperature and the switching times of a switching capacitor in the current three-phase circuit, so that the use duration, the temperature and the service life of each capacitor are more balanced, the use times of a high-frequency capacitor are reduced, the service life of the capacitor is prolonged, and the normal operation of a power supply system is guaranteed.

Drawings

Fig. 1 is a schematic flow chart illustrating an embodiment of a reactive compensation control method according to the present application;

fig. 2 is a schematic structural diagram of an embodiment of a reactive compensation control device according to the present application;

fig. 3 is a schematic structural diagram of an electronic device according to the present application.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The reactive compensation control method, the reactive compensation control device, the storage medium and the equipment are applied to a power supply system, and therefore the three-phase circuit is a three-phase system. The circuit is mainly to the control strategy of reactive compensator switching condenser in the power supply system, the reactive compensator that this application embodiment provided uses the singlechip as core control chip, through cooperation between a plurality of modules and according to a plurality of control strategies of reactive compensator switching condenser, and then reduce the frequency of use of single condenser, can also improve the requirement of power factor simultaneously, enlarge the use scene of condenser, simultaneously in the embodiment that this application provides, through reserving communication interface and electric connection interface, and then make the controller can be connected with more terminal equipment, so that can communicate with the server and carry out the function of upper platform command, and can realize the horizontal parallel networking operation coordination control function of control module.

An embodiment of the present application provides a reactive compensation control method, referring to fig. 1, including: s100, S200 and S300.

S100: and acquiring the circuit parameters of the current three-phase circuit in real time, and calculating the capacitance switching parameters of the current three-phase circuit according to the circuit parameters.

In the embodiment provided by the application, the circuit parameters in the current three-phase circuit system are acquired in real time through the data detection module, wherein the circuit parameters comprise voltage, current and temperature; the temperature is the temperature of the capacitor to be switched in the current three-phase circuit system, and the current and the voltage in the three-phase circuit system. Optionally, the circuit parameters include: and calculating the voltage and current of each phase, the temperature of each capacitor and the working accumulated running time so as to calculate the reactive power, the active power, the power factor and the harmonic wave of each phase. The temperature of the capacitor to be switched is one of the bases for determining the capacitor to be switched, and if the capacitor with higher temperature is put into the current three-phase circuit, the service life of the corresponding capacitor can be shortened. Therefore, the service life of the capacitor is prolonged by reducing the use frequency of the capacitor with high temperature.

Optionally, the circuit parameters include each phase voltage, current and temperature in the current three-phase circuit; the calculation of the capacitance switching parameters of the current three-phase circuit according to the circuit parameters comprises the following steps:

Calculating power factors, three-phase unbalance degrees and harmonic waves of each phase of the current three-phase circuit by acquiring capacitance switching parameters acquired by the data detection module in real time; the power factor is used as a basis for whether the capacitor is switched on or off, wherein the power factor needs to be compared with a preset power factor switching threshold and/or a preset power factor switching threshold, and the preset power factor switching threshold can be set according to different application scenarios. When the whole circuit system is connected with the server, the server can automatically calculate according to the detected three-phase circuit parameters and the detected three-phase circuit application scene, and determine the preset power factor input threshold value. And the three-phase unbalance is used for determining that a capacitor is put into the current three-phase circuit by adopting a co-compensation or sub-compensation strategy. The calculation process of the three-phase unbalance is as follows:

three-phase current I is obtained by collection_a、I_b、I_cCalculating to obtain three-phase average current I_avThree-phase unbalance [ (MAX (I) ]_a、I_b、I_c)-I_av)/I_av]X 100%. The harmonic is used for the reactive compensation controller to analyze the influence of the harmonic on the operation and use of the capacitor, so that the condition that the capacitor possibly appears can be grasped conveniently and timely, and the capacitor can be quickly responded.

S200: and determining to switch the capacitor to the current three-phase circuit according to the capacitor switching parameters.

The capacitor switching parameters calculated on the basis of the step S100 are obtained by comparing the power factor with a preset power factor input threshold and a preset power factor input cut threshold in the subsequent steps, and determining that the power factor is smaller than the preset power factor input threshold or the power factor is larger than the preset power factor cut threshold, and then determining that a capacitor needs to be switched to the current three-phase circuit, so as to further determine a capacitor supplement strategy for the three-phase circuit system, wherein the capacitor supplement strategy can be divided into a common supplement strategy and a separate supplement strategy. Different capacitor supplement strategies are adopted according to different conditions, and the purpose of supplementing the capacitor in a targeted manner is achieved so as to meet the requirements of power factors.

S300: and determining a target switching capacitor according to the running time, the capacitance temperature and the switching times of a plurality of capacitors to be switched in the current three-phase circuit, and controlling the target switching capacitor to be switched into the current three-phase circuit.

After the capacitors are determined to be switched to the current three-phase circuit, the service life of the capacitors is prolonged in order to reduce the use frequency of the capacitors. The method comprises the steps of comparing the operation time, the capacitance temperature and the switching times of a plurality of capacitors to be switched which are connected and disconnected in the current three-phase circuit, and taking the capacitor with the shortest operation time, the lowest capacitance temperature and the least switching times as a target switching capacitor, so that the use frequency of other capacitors is reduced, namely the use frequency of the capacitor with higher corresponding numerical value in any one of the operation time, the capacitance temperature and the switching times is used for prolonging the service life of other capacitors. The capacitor to be switched is connected with a control module in the current three-phase circuit in advance, so that a switching driving module is arranged between the control module and the capacitor to be switched for connection, and the switching driving module can be a switching driving switch for disconnecting or connecting a circuit between the control module and the capacitor to be switched, so as to realize switching of the capacitor.

In step S200, the power factor is compared with a preset power factor input threshold, and the current three-phase circuit input capacitor is determined. In another embodiment, the power factor is compared with a preset power factor input threshold value, and whether the power factor is smaller than the preset power factor input threshold value is judged; and when the power factor is smaller than the preset power factor input threshold, indicating that the capacitor needs to be input into the current three-phase circuit. In order to switch the capacitor in a targeted manner, avoid excessive input of capacitance, increase the use frequency of the capacitor, compare the three-phase unbalance degree with a preset three-phase unbalance degree threshold value to determine an input strategy for the current three-phase circuit, wherein the input strategy comprises the co-compensation strategy and the sub-compensation strategy, which are described in the following paragraphs, to supplement the capacitor in a targeted manner, meet the requirements of power factors, improve the reasonable utilization of a large-capacity capacitor and a small-capacity capacitor, and improve the service life of the capacitor as a whole.

And if the power factor is larger than the preset power factor input threshold value, which is equivalent to that the power in the current three-phase circuit system can meet the requirement, the capacitor does not need to be switched on the current three-phase circuit at this time, the step of determining a target switching capacitor according to the running time, the capacitor temperature and the switching times of the capacitor to be switched is stopped, and the target switching capacitor is controlled to be input into the current three-phase circuit, namely the calculation process of the switching strategy, the three-phase unbalance degree and the like of the current three-phase circuit is stopped, so that the memory capacity of a controller or a remote server is saved.

The inputting of the common compensation capacitor according to the common compensation capacitor switching control strategy comprises the following steps:

Optionally, the preset three-phase unbalance threshold is 15%.

In combination with the foregoing, after the power factor is compared with the preset power factor input threshold, it is determined that the capacitor needs to be input in the current three-phase circuit, so as to be switched in a targeted manner, so as to improve the service life of the capacitor, and enable the capacity of the capacitor to be matched with the required quantity. In another embodiment, when the three-phase unbalance is greater than or equal to the three-phase unbalance threshold, switching the common compensation capacitor according to a common compensation capacitor switching control strategy; namely, the power factor is smaller than the set power factor input threshold and the three-phase unbalance is larger than or equal to 15%, which indicates that the three-phase unbalance of the current three-phase circuit system (namely, the power supply system) is too large, the common compensation capacitor is input, namely, the three-phase capacitor is controlled to compensate the capacitor for the whole current three-phase circuit. When the three-phase unbalance is smaller than the three-phase unbalance threshold, switching the common compensation capacitor according to a split compensation capacitor switching control strategy; namely, the power factor is smaller than the set power factor input threshold value and the three-phase unbalance degree is less than 15%, which indicates that the three-phase unbalance degree of the current three-phase circuit system (namely, the power supply system) meets the standard, and then the branch compensation capacitor is input. In the process of inputting the separately compensated capacitors, the target phase of the switched capacitor in the current three-phase circuit needs to be determined, and the single-phase capacitor is controlled to switch the capacitor to the target phase. The three-phase circuit comprises A, B, C three phases, a capacitor is switched on the phase A when the A phase needs to compensate the capacitor, and the capacitor is switched on the phase B when the B phase needs to switch the capacitor, so that the single-phase capacitors are independently compensated, the utilization rate of capacitors with different capacities is improved, namely, capacitors with small capacity are switched on when the capacitors with small capacity are needed.

After the capacitor is supplemented, the power supply system of the current three-phase circuit cannot meet the power supply requirement, the capacitor is added again according to the co-compensation strategy, and the power factor and the preset power factor input threshold are calculated again until the power factor is larger than the preset power factor input threshold. And when the power factor is larger than the set power factor input threshold value, the input capacitor can meet the condition that the current three-phase circuit system is operated, and the control implementation process of inputting the capacitor again according to the co-compensation strategy is not performed.

In order to ensure that after the capacitors are put into the circuit, whether the power factors of the current three-phase circuit can meet the power supply requirement or not needs to be calculated after the capacitors are put into the circuit and a common compensation strategy. Correspondingly, after the capacitor is put into the phase of the capacitor required to be put into the current three-phase circuit according to the sub-compensation strategy, calculating the power factor of the current three-phase circuit after the sub-compensation capacitor, comparing the power factor with a preset power factor input threshold value, and after the power factor is smaller than the preset power factor input threshold value and the power factor is shown to be smaller than the preset power factor input threshold value, if the power supply system of the current three-phase circuit cannot meet the power supply requirement, putting the capacitor again according to the sub-compensation strategy, calculating the power factor again and putting the power factor into the threshold value with the preset power factor until the power factor is larger than the preset power factor input threshold value. And when the power factor is larger than the preset power factor input threshold value, the input capacitor can meet the condition that the current three-phase circuit system is operated, and the control implementation process of inputting the capacitor again according to the sub-compensation strategy is not performed.

In step S200, the power factor is compared with a preset power factor cut threshold, and the capacitor is determined to be cut off for the current three-phase circuit. In another embodiment, the power factor is compared with a preset power factor cut-off threshold, and whether the power factor is greater than or equal to the preset power factor cut-off threshold is judged; and when the power factor is greater than or equal to the preset power factor input threshold, the capacitor needs to be cut off for the current three-phase circuit. In order to cut off the capacitor in a targeted manner, avoid excessive cutting off of the capacitor and reduce the effective utilization rate of the capacitor, the three-phase unbalance is compared with a preset three-phase unbalance threshold value to determine an input strategy for the current three-phase circuit, wherein the input strategy comprises a co-compensation strategy and a sub-compensation strategy which are described in the following, the capacitor is cut off in a targeted manner, the requirement of a power factor is met, reasonable utilization of a large-capacity capacitor and a small-capacity capacitor is improved, and the service life of the capacitor is prolonged integrally.

And if the power factor is smaller than the preset power factor cut-off threshold value, which is equivalent to that the power in the current three-phase circuit system can meet the requirement, the capacitor does not need to be cut off from the current three-phase circuit at this time, the step of determining a target switching capacitor according to the running time, the capacitor temperature and the switching frequency of the capacitor to be switched is stopped, and the target switching capacitor is controlled to be switched into the current three-phase circuit, namely the calculation processes of the switching strategy, the three-phase unbalance degree and the like of the current three-phase circuit are stopped, so that the memory capacity of a controller or a remote server is saved.

Optionally, the preset three-phase unbalance threshold is 15%.

In combination with the foregoing, after comparing the power factor with the preset power factor cut-off threshold, it is determined that the capacitor needs to be cut off after the current three-phase circuit is cut off, so as to cut off the capacitor specifically, improve the service life of the capacitor, and enable the capacity of the capacitor to match the required quantity. In another embodiment, when the three-phase unbalance is greater than or equal to the three-phase unbalance threshold, switching the common compensation capacitor according to a common compensation capacitor switching control strategy; namely, the power factor is smaller than the set power factor input threshold value and the three-phase unbalance is larger than or equal to 15%, which indicates that the three-phase unbalance of the current three-phase circuit system (namely, the power supply system) is too large, the common compensation capacitor is cut off, namely, the capacitor of the whole current three-phase circuit compensation capacitor is controlled to be powered off, namely, the common compensation capacitor is cut off. When the three-phase unbalance is smaller than the three-phase unbalance threshold, cutting off the common compensation capacitor according to a branch compensation capacitor switching control strategy; namely, the power factor is smaller than the set power factor input threshold value and the three-phase unbalance is less than 15%, which indicates that the three-phase unbalance of the current three-phase circuit system (namely, the power supply system) meets the standard, and then the compensation capacitor is cut off. In the process of removing the separately compensated capacitors, the target phase of switched capacitors in the current three-phase circuit needs to be determined, and the single-phase capacitors are controlled to switch the capacitors to the target phase. That is, the three-phase circuit includes A, B, C three phases, determines that the A phase needs to cut off the capacitor, cuts off the energized capacitor for the A phase, that is, cuts off the power for the capacitor complementary to the A phase, and if the B phase needs to cut off the capacitor, cuts off the energized capacitor for the B phase, and further cuts off the single-phase capacitor independently from each other, so as to improve the utilization rate of the capacitor with different capacities, that is, to invest in the capacitor with small capacity when the capacitor with small capacity is needed.

In order to ensure that power factors of the current three-phase circuit can meet power supply requirements after capacitance is input, after a capacitor of the current three-phase circuit is cut off according to a co-compensation strategy, calculating power factors of the current three-phase circuit after the co-compensation capacitor is cut off, comparing the power factors with a preset power factor cut-off threshold value, cutting off the co-compensation capacitor again according to the co-compensation strategy when the power factors are larger than or equal to the preset power factor input threshold value after the co-compensation capacitor is cut off and a current power supply system of the current three-phase circuit is far larger than the power supply requirements, and calculating the power factors again and cutting off the threshold value with the preset power factors until the power factors are smaller than the preset power factor cut-off threshold value. And when the power factor is smaller than the set power factor cut-off threshold value, the control implementation process of cutting off the capacitor again according to the co-compensation strategy is not performed if the input capacitor can meet the requirement that the current three-phase circuit system is operated.

and when the power factor in the three-phase circuit after the sub-compensation capacitor is cut off is larger than or equal to the preset power factor cut-off threshold value, repeating the step of cutting off the sub-compensation capacitor according to a sub-compensation capacitor switching control strategy.

In order to ensure that after the capacitors are put into use and the capacitors are required to be removed through calculation after a common compensation strategy, whether the power factors of the current three-phase circuit can meet the power supply requirements or not is judged. Correspondingly, after the capacitor is cut off at the phase where the capacitor needs to be cut off at the current three-phase circuit according to the sub-compensation strategy, calculating the power factor of the current three-phase circuit after the sub-compensation capacitor is cut off, comparing the power factor with a preset power factor cut-off threshold value, and after the power factor is larger than or equal to the preset power factor input threshold value and the capacitor is supplemented, cutting off the capacitor again according to the sub-compensation strategy when the power factor cannot meet the power supply requirement of the current three-phase circuit, and calculating the power factor again and cutting off the threshold value with the preset power factor until the power factor is smaller than the preset power factor cut-off threshold value. And when the power factor is smaller than the set power factor input threshold value, the input capacitor can meet the condition that the current three-phase circuit system is operated, and the control implementation process of cutting off the capacitor again according to the sub-compensation strategy is not performed.

Optionally, the capacitor to be switched comprises a to-be-switched electric appliance which is connected and disconnected in the current three-phase circuit and an electric appliance which is connected and electrified in the current three-phase circuit and is to be cut off; the method for controlling the switching of the target switching capacitor into the current three-phase circuit comprises the following steps of determining a target switching capacitor according to the running time, the capacitance temperature and the switching times of a plurality of capacitors to be switched in the current three-phase circuit, and controlling the target switching capacitor to be switched into the current three-phase circuit, wherein the steps comprise:

sequentially comparing the running time, the capacitance temperature and the switching times of each capacitor to be switched, and taking the capacitor to be switched with the minimum running time, the minimum capacitance temperature and the minimum switching times as a target capacitor to be switched; and controlling the target input capacitor to input the current three-phase circuit.

Sequentially comparing the operation time, the capacitance temperature and the switching times of each capacitor to be cut off, and taking the capacitor to be cut off with the longest operation time, the highest capacitance temperature and the largest switching times as a target capacitor to be cut off; controlling the target cutting capacitor to cut from the current three-phase circuit.

In another embodiment, in order to determine the capacitors to be switched, the operation time, the capacitor temperature and the switching times of each capacitor to be switched are sequentially compared; the capacitor to be switched comprises an electric appliance to be switched which is connected and disconnected in the current three-phase circuit and an electric appliance to be switched which is connected and electrified in the current three-phase circuit. The capacitor to be switched and the capacitor to be cut off are connected with the switching driving module, so that the controller can be ensured to determine whether the switching driving module is powered on or off the capacitor in the current three-phase circuit in time. Illustratively, the input sequence determines the input sequence of the capacitors according to the accumulated operation time, the temperature of the capacitors and the switching times, the capacitor with the minimum accumulated operation time is selected firstly, if the capacitors meeting the conditions have multiple groups, the capacitor with the minimum temperature is selected, and if the capacitors meeting the conditions have multiple groups, the switching times are compared finally, and the capacitor with the minimum input times is input. And the cutting sequence firstly cuts the capacitor with the longest accumulated running time, if the capacitors meeting the conditions have multiple groups, the capacitor with the highest temperature is selected, and if the capacitors meeting the conditions have multiple groups, the switching times are compared finally, and the capacitor with the highest switching times is cut. It should be noted that the cutting in the embodiment of the present application is to control the switching driving module to cut off the capacitor in the three-phase circuit through the controller.

In combination with the foregoing description, exemplarily, 16 control switching circuits of the controller corresponding to the control module (the reserved 16 circuits determine that a capacitor does not need to be added according to actual conditions, and are not added in this example, which is only exemplified) include 1-4 control circuits for switching 4 groups of complementary capacitor groups, 5-8 control circuits for switching 4 complementary capacitors of the a phase, 9-12 control circuits for switching 4 capacitors of the B phase, and 13-16 control circuits for switching 4 capacitors of the C phase. The data detection module respectively measures A, B, C the voltage and current of each phase of the three phases, and then calculates the power factor of each phase

Three-phase imbalance and harmonics.

The co-compensation input process comprises the following steps: if it is

All are smaller than a preset power factor input threshold value, and the three-phase unbalance degree is larger than or equal to 15%, a common compensation strategy is executed, and a common compensation capacitor is input according to the common compensation strategy (power-on)). The controller selects a capacitor bank with proper capacity and least accumulated running time to be switched, if a plurality of capacitor banks meet the condition, the capacitor bank with the lowest temperature is selected, and if a plurality of capacitor banks meet the condition, the capacitor banks with the lowest switching times and the lowest switching times are compared; a first, complementary capacitor bank is applied. If the three-phase power factor is larger than or equal to a preset input threshold value after the first complementary capacitor bank is input, stopping inputting; and if the three-phase power factor is smaller than the preset input threshold, continuing to perform the capacitor input process according to the process until the three-phase power factor is larger than or equal to the preset input threshold or all four complementary capacitor banks are input.

The process of the co-complementing excision comprises the following steps: if it is

And if the three-phase unbalance degrees are more than or equal to 15 percent and are all more than the preset power factor cut-off threshold value, cutting off (powering off) the common compensation capacitor according to the common compensation strategy. The controller selects the capacitor bank with the most accumulated running time to be cut off, if a plurality of capacitor banks meet the condition, the capacitor bank with the highest temperature is selected, and if a plurality of capacitor banks meet the condition, the switching times are compared finally, and the capacitor bank with the most cutting times is cut off; the first complementary capacitor bank is removed. If the three-phase power factor is smaller than a preset power factor cut threshold value after the first complementary capacitor bank is cut off, cutting off is stopped; and if the three-phase power factor is greater than or equal to the preset power factor cut-off threshold value, continuing to perform the capacitor cut-off process according to the process. And until the three-phase power factor is smaller than a preset power factor cut-off threshold value, or all the parts of the co-compensation capacitor bank are cut off.

The sub-compensation investment process is as follows: and (3) performing sub-compensation strategy and inputting a sub-compensation capacitor (electrifying) according to the sub-compensation strategy if the phase power factor is smaller than the preset input threshold and the three-phase unbalance is smaller than 15 percent. The controller selects the sub-compensation capacitor with proper compatible quantity and least accumulated running time, if the capacitor meeting the condition is multiple, the capacitor group with the lowest temperature is selected, and if the capacitor meeting the condition is multiple, the switching times are compared finally, and the sub-compensation capacitor with the least number of times is put into; the first partial compensation capacitor of the phase is added. If the phase power factor is larger than or equal to a preset power factor input threshold value after the first sub-compensation capacitor of the phase is input, the input is stopped; and if the phase power factor is smaller than the preset power factor input threshold, continuing to carry out input control according to the process. Until the phase power factor is greater than or equal to a preset power factor input threshold value, or the four sub-compensation capacitors are completely input.

The sub-compensation cutting process comprises the following steps: and (3) performing sub-compensation capacitor removal (power failure) according to a sub-compensation strategy if the phase power factor is greater than or equal to the preset power factor removal threshold and the three-phase unbalance degree is less than 15% according to the single-phase power factor and the preset power factor removal threshold. The controller selects the branch compensation capacitor with the most accumulated running time of the phase, if the capacitors meeting the conditions are multiple, the capacitor with the highest temperature is selected, and if the capacitors meeting the conditions are multiple, the switching times are compared finally, and the capacitor with the most cutting times is cut off; the first partial capacitor of the phase is cut off. If the phase power factor is smaller than a preset power factor cut threshold value after the first sub-compensation capacitor of the phase is cut off, cutting off is stopped; and if the phase power factor is larger than or equal to the preset power factor cut threshold, continuing to control the cutting of the capacitor according to the process of separately compensating and cutting the capacitor. Until the power factor is smaller than a preset power factor cut-off threshold value, or the phase compensation capacitor is completely cut off.

In order to facilitate operation, in another embodiment provided by the present application, a user may also directly perform a switching operation of a capacitor, for example, when the user is used for a manual operation, the user manually selects first input capacitor information that needs to be input and/or first cut capacitor information that needs to be cut in a current three-phase circuit, when the user determines that the capacitor needs to be input, after determining the first input capacitor information, the user performs an operation of determining that the first input capacitor information corresponds to the capacitor, the controller receives information generated by the operation, the information includes the first input capacitor information and the information that determines the input, and the controller controls the switching driving module to drive a circuit connected to the capacitor to be electrified, so that the capacitor is input into the current three-phase circuit.

Correspondingly, when a user determines that the capacitor needs to be cut off, after the first cut capacitor information is determined, the operation of determining that the first cut capacitor information corresponds to the capacitor is performed, the controller receives information generated by the operation, the information comprises the first cut capacitor information and the cut-off determining information, and the controller controls the switching driving module to drive a line connected with the capacitor to be powered off, so that the capacitor is cut off from the current three-phase circuit.

In another implementation manner provided by the embodiment of the application, in order to reduce labor input, and meanwhile, to switch a capacitor in a discovery circuit, control information can be timely and quickly sent to a controller, the application can also send a command to the controller through a server, and the server includes a cloud platform and a computer/monitoring center. In an exemplary manner, in a server control process, a server determines first input capacitor information needing to be input and/or first cut capacitor information needing to be cut in a current three-phase circuit, when the server determines that a capacitor needs to be input, after the first input capacitor information is determined, the determined information and the first input capacitor information are sent to a reactive power compensator and transmitted to a controller, the controller receives the information, the information comprises the first input capacitor information and the determined input information, and the controller controls a switching driving module to drive a circuit connected with the capacitor to be electrified, so that the capacitor is input into the current three-phase circuit.

Correspondingly, when the server determines that the capacitor needs to be cut off, after the first cut-off capacitor information is determined, the determined information and the first cut-off capacitor information are sent to the reactive power compensator and are transmitted to the controller, the controller receives the information, the information comprises the first cut-off capacitor information and the cut-off determination information, and the controller controls the switching driving module to drive a line connected with the capacitor to be powered off, so that the capacitor is cut off from the current three-phase circuit. It should be noted that the server control process may be a process in which the server determines that the capacitor needs to be switched according to the foregoing steps, and automatically generates the switched capacitor information after determining the switched capacitor information. Or the controller can be remotely operated by the user at the server, that is, the server performs the step of switching the capacitor again after the manual operation process is performed.

In another embodiment, the server can be connected to the control modules of the multiple terminals through a communication connection manner, that is, the server can send a command to a next terminal module connected to the control module through a chip cascade I/O interface in the control module, so as to implement device cascade of the reactive power compensator, so as to send remote control information to the control module of any reactive power compensator and other terminal devices connected to the control module through the server.

An embodiment of the present application further provides a reactive compensation control apparatus, referring to fig. 2, including: data detection module 110, control module 120 and switching drive module 130

The data detection module 110 is used for detecting three-phase circuit parameters in the current circuit in real time and sending the three-phase circuit parameters to the control module;

the control module 120 is configured to obtain circuit parameters of the current three-phase circuit in real time, and calculate capacitance switching parameters of the current three-phase circuit according to the circuit parameters; determining to switch a capacitor on the current three-phase circuit according to the capacitor switching parameters; determining a target switching capacitor according to the operation time, the capacitor temperature and the switching times of a plurality of capacitors to be switched which are connected and powered off in the current three-phase circuit; sending the switching information of the target switching capacitor to a switching driving module;

and the switching driving module 130 is used for controlling the target switching capacitor to switch on/off the current three-phase circuit according to switching.

In the present application, referring to fig. 2, the data detection module 110, the control module 120 and the switching drive module 130 are electrically connected, and optionally, the data detection module 110, the control module 120 and the switching drive module 130 are communicatively connected so as to enable information transmission. Correspondingly, the data detection module 110 is configured to detect the three-phase circuit parameters in the current circuit in real time, and send the three-phase circuit parameters to the control module.

Alternatively, referring to fig. 2, the data detection module 110 includes a voltage detection module 111, a current detection module 112, and a temperature detection module 113. The temperature detection module 113 is configured to detect a temperature of the capacitor to be switched; the voltage detection module 111 and the current detection module are used for detecting the voltage and the current of the three-phase circuit; the three-phase circuit parameters 112 include the temperature, the voltage, and the current of the capacitor to be switched. In combination with the foregoing, the voltage detection module 111 and the current detection module 112 are configured to detect voltage and current in a current three-phase circuit, the temperature detection module 113 is configured to detect temperature of a capacitor to be switched in the current three-phase circuit system, the voltage detection module 111, the current detection module 112, and the temperature detection module 113 are all electrically connected (including communicatively connected) to the control module 120, and in another embodiment, the data detection module 110 is connected to the control module through the a/D conversion module 210. The temperature of the switched capacitor is one of the bases for determining the capacitor to be switched, and if the capacitor with higher temperature is put into the current three-phase circuit, the service life of the corresponding capacitor can be reduced. Therefore, the service life of the capacitor is prolonged by reducing the use frequency of the capacitor with high temperature.

optionally, the calculating the capacitance switching parameter of the current three-phase circuit according to the circuit parameter includes:

and calculating power factors, three-phase unbalance degrees and harmonic waves of the current three-phase circuit according to the circuit parameters, wherein the capacitor switching parameters comprise the power factors, the three-phase unbalance degrees and the harmonic waves.

Optionally, the preset three-phase unbalance threshold is 15%.

Calculating power factors, three-phase unbalance and harmonic waves of the current three-phase circuit by acquiring capacitance switching parameters acquired by the data detection module in real time; the power factor is used as a basis for whether the electric appliance is put into use, wherein the power factor needs to be compared with a preset power factor input and cut-off threshold value, and the preset power factor input and cut-off threshold value can be set according to different application scenes. When the whole circuit system is connected with the server, the server can automatically calculate according to the detected three-phase circuit parameters and the detected three-phase circuit scene, and determine a preset power factor input threshold value. And the three-phase unbalance is used for determining that a capacitor is put into the current three-phase circuit by adopting a co-compensation or sub-compensation strategy. The calculation process of the three-phase unbalance is as follows:

And comparing the power factor with a preset power factor input threshold value in the subsequent steps, and determining that the power factor is smaller than the preset power factor input threshold value, wherein the capacitor is determined to be switched to the current three-phase circuit, and further facilitating determination of a capacitor supplement strategy for the three-phase circuit system, wherein the capacitor supplement strategy can be divided into common supplement and sub supplement. Different capacitor supplement strategies are adopted according to different conditions, and the purpose of supplementing the capacitor in a targeted manner is achieved so as to meet the requirements of power factors.

After the capacitors are determined to be switched to the current three-phase circuit, the service life of the capacitors is prolonged in order to reduce the use frequency of the capacitors. The method comprises the steps of comparing the operation time, the capacitance temperature and the switching times of a plurality of capacitors to be switched which are connected and disconnected in the current three-phase circuit, and taking the capacitor with the shortest operation time, the lowest capacitance temperature and the least switching times as a target switching capacitor, so that the use frequency of other capacitors is reduced, namely the use frequency of the capacitor with higher corresponding numerical value in any one of the operation time, the capacitance temperature and the switching times is used for prolonging the service life of other capacitors. The capacitor to be switched is connected with a control module in the current three-phase circuit in advance, so that a switching driving module is arranged between the control module and the capacitor to be switched for connection, and the switching driving module can be a switching driving switch for disconnecting or connecting a circuit between the control module and the capacitor to be switched, so as to realize switching of the capacitor. It should be noted that, the control module of the present application can implement the steps of the reactive compensation control method.

And the switching driving module 130 is used for controlling the target switching capacitor to switch on/off the current three-phase circuit according to switching. In combination with the foregoing, the to-be-switched capacitor is connected with the control module in the current three-phase circuit in advance, so that a switching driving module is arranged between the control module and the to-be-switched capacitor for connection, and the switching driving module 130 may be a switching driving switch for disconnecting or connecting a circuit between the control module and the to-be-switched capacitor, so as to implement switching of the capacitor. The control module drives the darlington module to change the on/off state of the accessed compensation capacitor switch according to the parameters, the threshold value and the reactive compensation control strategy, namely drives the switching driving module 130 to change the on/off state of the accessed compensation capacitor switch. In yet another embodiment, the user may set a certain time interval by pressing a key, and transmit the parameters and the threshold values of the reactive compensation controller described in the foregoing text to the server (such as a computer, a monitoring center and a cloud platform) through the communication module 150.

Optionally, referring to fig. 2, a power module 140 electrically connected to the control module 120 is further included, and the power module 140 is configured to supply power to the control module 120, so as to ensure that the control module can normally operate.

Optionally, referring to fig. 2, the data storage module 150 is electrically connected to the control module, the data storage module 150 includes a first data storage module 151 and a second data storage module 152, the data storage module 150 is configured to store one or more of the current circuit parameters, the capacitor switching parameters, the operating time, the capacitor temperature, and the switching times of the capacitor to be switched, the capacitor information, the three-phase imbalance threshold, and the preset power factor input threshold, the first data storage module 151 and the second data storage module 152 can store the above data, so as to check historical data of the current three-phase circuit, the second storage module 152 is electrically connected to the post-file communication module 160, so that the second storage module 152 can transmit the data stored by the data storage module 150 and the data collected by the control module 120 in real time to a server (such as a computer, a monitoring center, and a cloud platform) connected in communication, the server can calculate according to the transmitted data to determine whether the current three-phase circuit needs to switch the capacitor, and when the capacitor needs to be switched, the server can send control information to the control module 120, so that the control module 120 can execute the step of remotely controlling the switching of the capacitor by the server.

Optionally, referring to fig. 2, a communication module 160 electrically connected to the control module 120 is further included,

the communication module 160 is configured to receive control information sent by a server, and send the control information to the control module; or the three-phase circuit parameters sent by the control module are sent to a server.

The control module 120 is further configured to receive control information sent by the server, and analyze the control information; determining first input capacitor information of the current three-phase circuit and/or cutting first cutting capacitor information of the current three-phase circuit; controlling a capacitor corresponding to the first input capacitor information to be input into the current three-phase circuit according to the first input capacitor information; and/or controlling the capacitor corresponding to the first cut capacitor information to be cut from the current three-phase circuit according to the first cut capacitor information.

The communication module 160 is used for implementing data transmission between the control module 120 and the server, and connection between the data storage module 150 and the server, implementing data transmission between the data storage module 150 and the server. The communication module comprises modules capable of realizing data transmission, such as wifi and wireless connection. In the process of switching the capacitor through the server, in order to reduce labor input, the capacitor needs to be switched when a circuit is found, control information can be timely and quickly sent to the control module 120, the method and the system can also send a command to the control module 120 through the server, and the server comprises a cloud platform and a computer/monitoring center. Illustratively, in the server control process, the server determines first input capacitor information needing to be input and/or first cut capacitor information needing to be cut in the current three-phase circuit, when the server determines that a capacitor needs to be input, after the first input capacitor information is determined, the determined information and the first input capacitor information are sent to the reactive power compensator and transmitted to the controller, the control module 120 receives the information, the information comprises the first input capacitor information and the determined input information, and the control module 120 controls the switching driving module 130 to drive a line connected with the capacitor to be electrified so that the capacitor is input into the current three-phase circuit.

Correspondingly, when the server determines that the capacitor needs to be cut off, after determining the first cut-off capacitor information, the determined information and the first cut-off capacitor information are sent to the reactive power compensator and transmitted to the control module 120, the control module 120 receives the information, the information includes the first cut-off capacitor information and the information for determining the cut-off, and the control module 120 controls the switching driving module to drive a line connected with the capacitor to be powered off, so that the capacitor is cut off from the current three-phase circuit. It should be noted that the server control process may be a process in which the server determines that the capacitor needs to be switched according to the foregoing steps, and automatically generates the switched capacitor information after determining the switched capacitor information. The control module 120 may also be operated remotely by the user at the server, that is, in the manual operation process, and then the server performs the step of switching the capacitor.

In another embodiment, the server can be connected with the control modules of a plurality of terminals through a communication connection manner, so as to realize equipment cascade connection of the reactive power compensator, and send remote control information to the control module of any reactive power compensator through the server.

Optionally, referring to fig. 2, the system further includes a display module 170 electrically connected to the control module 120, wherein the display module 170 is configured to display data transmitted by the control module 170, and facilitate a process for performing a manual operation based on the display module. In an exemplary manner, the first and second electrodes are,

optionally, referring to fig. 2, an interaction module 180 electrically connected to the control module 120 is further included,

the interaction module 180 is configured to determine first input capacitor information input into the current three-phase circuit and/or cut first cut capacitor information of the current three-phase circuit in response to a user operation; and transmitting the first input capacitor information and/or the first cut capacitor information to a control module; or determining a three-phase unbalance threshold value and a preset power factor input threshold value input by a user;

the control module 120 is further configured to control the capacitor corresponding to the first input capacitor information to be input into the current three-phase circuit according to the first input capacitor information; and/or controlling the capacitor corresponding to the first cut capacitor information to be cut from the current three-phase circuit according to the first cut capacitor information.

The display module 170 is configured to display the data transmitted by the control module 170, and is also convenient for performing a manual operation process based on the display module. For example, in order to facilitate the operation, in another embodiment provided by the present application, a user may also directly perform the switching operation of the capacitor, for example, when the user manually operates through the interaction module, the user manually selects the first input capacitor information that needs to be input and/or the first cut capacitor information that needs to be cut in the current three-phase circuit, where the first input capacitor information and the first cut capacitor information are displayed on the display module. When a user determines that the capacitor needs to be put into, after the information of the first put capacitor is displayed and determined through the display module, the user performs operation of determining that the first put capacitor information is put into corresponding to the capacitor on the interaction module, the control module receives information generated by the operation, the information comprises the first put capacitor information and the information of the determined put, and the controller controls the switching driving module to drive a circuit connected with the capacitor to be electrified, so that the capacitor is put into a current three-phase circuit. Accordingly, when the user determines that the capacitor needs to be cut off, the foregoing example is referred to, and details are not described herein.

Optionally, the switching driving module is provided with a plurality of first circuit output interfaces, and part of the first circuit output interfaces are connected with the capacitor to be switched. Optionally, the temperature detection module is provided with a plurality of second circuit output interfaces, and part of the second circuit output interfaces are connected with the capacitor to be switched.

Illustratively, the temperature detection module is capable of detecting the internal temperature of the power capacitor of 16 paths. The switching driving module has 16 paths of output, and drives the switch to act according to the control strategy of the control module to control the switching of the capacitor. 16 expansion interfaces are reserved in the temperature detection module and the switching driving module, and meanwhile, a controller cascade interface is reserved in a control module chip for cascade operation and control of the controller, so that the redundancy of the controller is improved, and the controller is suitable for different occasions. In another embodiment, the control module is further provided with a plurality of communication interfaces 190, the communication interfaces are temporarily not accessed to the terminal device, and when the control module needs to be connected to other devices for communication, the control module 120 is expanded by the communication interfaces 190 in communication connection with the other devices. The communication interface chip is connected with the I/O interface in a cascading mode, the server can be connected with the control modules of the terminals in a communication connection mode, namely the server can send a command to the next terminal module connected with the control module through the chip cascading I/O interface in the control modules, equipment cascading of the reactive compensator is achieved, and therefore the server can send remote control information to the control module of any reactive compensator and other terminal equipment connected with the control module conveniently to adapt to different occasions.

In combination with the foregoing description, exemplarily, 16 control switching circuits of the controller corresponding to the control module 120 (the reserved 16 control switching circuits determine that a capacitor does not need to be added according to actual conditions, and are not added in this example, which is only illustrated), wherein 1-4 control switching of 4 sets of complementary capacitor banks, 5-8 control switching of 4 complementary capacitors of the a phase, 9-12 control switching of 4 capacitors of the B phase, and 13-16 control switching of 4 capacitors of the C phase. The data detection module measures A, B, C the voltage and current of each of the three phases, and calculates each phasePower factor of one phase

Three-phase imbalance and harmonics. A switching driving module 130 is disposed between the control module 120 and the capacitor, and the switching driving module 130 is used to turn on/off a circuit between the control module 120 and the capacitor.

The co-compensation input process comprises the following steps: if it is

And if the input voltage is smaller than the preset power factor input threshold and the three-phase unbalance is larger than or equal to 15%, executing a common compensation strategy and inputting a common compensation capacitor (electrifying) according to the common compensation strategy. The control module 120 controls the switching drive module 130 to electrically connect (energize) the capacitor bank with proper capacity and minimum accumulated running time, if a plurality of capacitor banks meet the condition, the switching drive module 130 is controlled to electrically connect the capacitor bank with the lowest temperature, and if a plurality of capacitor banks meet the condition, the switching times are compared finally, and the switching drive module 130 is controlled to electrically connect the capacitor bank with the minimum times; the first of the complementary capacitor banks is energized. If the three-phase power factor is larger than or equal to a preset input threshold value after the first complementary capacitor bank is input, stopping inputting; and if the three-phase power factor is smaller than the preset input threshold, continuing to perform the capacitor input process according to the process until the three-phase power factor is larger than or equal to the preset input threshold or all four complementary capacitor banks are input.

And if the three-phase unbalance degrees are more than or equal to 15 percent and are all more than the preset power factor cut-off threshold value, cutting off (powering off) the common compensation capacitor according to the common compensation strategy. The control module 120 controls the switching driving module 130 to disconnect the circuit of the compensation capacitor bank with the maximum accumulated running time, if the capacitor banks meeting the conditions are multiple, the switching driving module 130 is controlled to disconnect the circuit of the capacitor bank with the highest temperature, and if the capacitor banks meeting the conditions are multiple, the switching times are compared finally, and the control module controls the switching timesA circuit for producing the capacitor bank with the most number of times of disconnection of the switching drive module 130; the first complementary capacitor bank is removed. If the three-phase power factor is smaller than a preset power factor cut threshold value after the first complementary capacitor bank is cut off, cutting off is stopped; and if the three-phase power factor is greater than or equal to the preset power factor cut-off threshold value, continuing to perform the capacitor cut-off process according to the process. And until the three-phase power factor is smaller than a preset power factor cut-off threshold value, or all the complementary capacitor banks are cut off.

The sub-compensation investment process is as follows: the sub-compensation input control is performed according to a single-phase power factor and a preset power factor input threshold, if the phase power factor is smaller than the preset input threshold and the three-phase unbalance degree is smaller than 15%, the control module 120 executes a sub-compensation strategy and controls the switching driving module 130 to electrically connect (energize) the sub-compensation capacitor (energize) according to the sub-compensation strategy. The control module 120 controls the switching drive module 130 to electrically connect (energize) the branch compensation capacitor with appropriate phase capacity and minimum accumulated running time, if a plurality of capacitors meet the condition, the capacitor bank with the lowest temperature for controlling the switching drive module 130 to electrically connect is selected, and if a plurality of capacitors meet the condition, the switching times are compared finally, and the branch compensation capacitor with the minimum time for electrically connecting the switching drive module 130 is controlled; the first partial compensation capacitor of the phase is added. If the phase power factor is larger than or equal to a preset power factor input threshold value after the first sub-compensation capacitor of the phase is input, the input is stopped; and if the phase power factor is smaller than the preset power factor input threshold, continuing to carry out input control according to the process. And until the phase power factor is greater than or equal to a preset power factor input threshold value, or all four sub-compensation capacitors are input.

The sub-compensation cutting process comprises the following steps: and (3) performing sub-compensation capacitor removal (power failure) according to a sub-compensation strategy if the phase power factor is greater than or equal to the preset power factor removal threshold and the three-phase unbalance degree is less than 15% according to the single-phase power factor and the preset power factor removal threshold. The control module 120 controls the switching driving module 130 to disconnect the circuit of the branch compensation capacitor with the maximum accumulated phase running time, if the number of the capacitors meeting the condition is multiple, the switching driving module 130 is controlled to disconnect the circuit of the capacitor with the highest temperature, and if the number of the capacitors meeting the condition is multiple, the switching times are compared finally, and the capacitor circuit with the maximum switching times of the switching driving module 130 is controlled; the first partial capacitor of the phase is cut off. If the phase power factor is smaller than a preset power factor cut threshold value after the first sub-compensation capacitor of the phase is cut off, cutting off is stopped; and if the phase power factor is greater than or equal to the preset power factor cut threshold, continuing to control the cutting of the capacitor according to the process of separately compensating and cutting the capacitor. Until the power factor is smaller than a preset power factor cut-off threshold value, or the phase compensation capacitor is completely cut off.

The embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored on the storage medium, and when the program is executed by a processor, the steps of the reactive compensation control method in any embodiment are implemented.

The embodiment of the present application further provides a computer device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the steps of the reactive compensation control method in any implementation manner are implemented.

Referring now to fig. 3, a schematic diagram of an electronic device 1400 (e.g., a terminal device or a server performing the method shown in fig. 1) suitable for implementing embodiments of the present application is shown. The electronic devices in the embodiments of the present application may include, but are not limited to, mobile terminals such as mobile phones, notebook computers, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), in-vehicle terminals (e.g., in-vehicle navigation terminals), wearable devices, and the like, and fixed terminals such as digital TVs, desktop computers, and the like. The electronic device shown in fig. 3 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present application.

The electronic device includes: a memory for storing a program for executing the method of the above-mentioned method embodiments and a processor; the processor is configured to execute programs stored in the memory. Where the processor herein may be referred to as the processing device 1401 as described below, the memory may include at least one of a Read Only Memory (ROM)1402, a Random Access Memory (RAM)1403, and a storage device 1408 as described below, in particular as follows:

as shown in fig. 3, the electronic device 1400 may include a processing means (e.g., central processing unit, graphics processor, etc.) 1401 that can perform various appropriate actions and processes in accordance with a program stored in a Read Only Memory (ROM)1402 or a program loaded from a storage means 1408 into a Random Access Memory (RAM) 1403. In the RAM1403, various programs and data necessary for the operation of the electronic device 1400 are also stored. The processing device 1401, the ROM 1402, and the RAM1403 are connected to each other by a bus 1404. An input/output (I/O) interface 1405 is also connected to bus 1404.

Generally, the following devices may be connected to the I/O interface 1405: input devices 1406 including, for example, a touch screen, touch pad, keyboard, mouse, camera, microphone, accelerometer, gyroscope, etc.; an output device 1407 including, for example, a Liquid Crystal Display (LCD), a speaker, a vibrator, or the like; storage devices 1408 including, for example, magnetic tape, hard disk, and the like; and a communication device 1409. The communication means 1409 may allow the electronic device 1400 to communicate wirelessly or by wire with other devices to exchange data. While fig. 3 illustrates an electronic device having various means, it is to be understood that not all illustrated means are required to be implemented or provided. More or fewer devices may alternatively be implemented or provided.

In particular, according to embodiments of the application, the processes described above with reference to the flow diagrams may be implemented as computer software programs. For example, embodiments of the present application include a computer program product comprising a computer program embodied on a non-transitory computer readable medium, the computer program comprising program code for performing the method illustrated in the flow chart. In such embodiments, the computer program may be downloaded and installed from a network via the communication device 1409, or installed from the storage device 1408, or installed from the ROM 1402. The computer program, when executed by the processing apparatus 1401, performs the above-described functions defined in the method of the embodiments of the present application.

It should be noted that the computer readable storage medium mentioned above in the present application may be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In this application, however, a computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: electrical wires, optical cables, RF (radio frequency), etc., or any suitable combination of the foregoing.

In some embodiments, the clients, servers may communicate using any currently known or future developed networking Protocol, such as HTTP (HyperText Transfer Protocol), and may be interconnected with any form or medium of digital data communication (e.g., a communications network). Examples of communication networks include a local area network ("LAN"), a wide area network ("WAN"), the Internet (e.g., the Internet), and peer-to-peer networks (e.g., ad hoc peer-to-peer networks), as well as any currently known or future developed networks.

The computer readable medium may be embodied in the electronic device; or may exist separately without being assembled into the electronic device.

The computer readable medium carries one or more programs which, when executed by the electronic device, cause the electronic device to:

acquiring a visual field range and a corresponding target tracking state adopted for target tracking of the first image frame; determining a visual field range adopted for target tracking of the second image frame based on the visual field range adopted by the first image frame and the corresponding target tracking state; and tracking the target based on the visual field range adopted by the second image frame to obtain a target tracking result corresponding to the second image frame.

Computer program code for carrying out operations for aspects of the present application may be written in any combination of one or more programming languages, including but not limited to an object oriented programming language such as Iava, Smalltalk, C + +, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

The modules or units described in the embodiments of the present application may be implemented by software or hardware. Here, the name of a module or a unit does not constitute a limitation of the unit itself in some cases, and for example, the target tracking state acquisition module may also be described as a "module that acquires a target tracking state".

The functions described herein above may be performed, at least in part, by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that may be used include: field Programmable Gate Arrays (FPGAs), Application Specific Integrated Circuits (ASICs), Application Specific Standard Products (ASSPs), systems on a chip (SOCs), Complex Programmable Logic Devices (CPLDs), and the like.

In the context of this application, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A reactive compensation control method, comprising:

2. The reactive compensation control method according to claim 1, wherein the circuit parameters include voltage, current, temperature of each phase in the current three-phase circuit; the calculating of the capacitance switching parameters of the current three-phase circuit according to the circuit parameters comprises the following steps:

and calculating the power factor, the three-phase unbalance and the harmonic of each phase of the current three-phase circuit according to the circuit parameters, wherein the capacitor switching parameters comprise the power factor, the three-phase unbalance and the harmonic.

3. The reactive compensation control method according to claim 2, wherein the determining to switch the capacitor to the current three-phase circuit according to the capacitor switching parameter comprises:

and when the power factor is larger than the preset power factor input threshold, determining a target switching capacitor according to the running time, the capacitor temperature and the switching times of the capacitor to be switched, and controlling the target switching capacitor to be input into the current three-phase circuit.

4. The reactive compensation control method according to claim 3, wherein the step of determining a target switching capacitor according to the running time, the capacitance temperature and the switching times of a plurality of capacitors to be switched in the current three-phase circuit, and controlling the target switching capacitor to be switched into the current three-phase circuit comprises the following steps:

when the three-phase unbalance is greater than or equal to the three-phase unbalance threshold, putting in a common compensation capacitor according to a common compensation capacitor switching control strategy;

5. The reactive compensation control method according to claim 4, wherein the putting in the common compensation capacitor according to the common compensation capacitor switching control strategy comprises:

6. The reactive compensation control method according to claim 4, wherein the switching of the sub-compensation capacitor according to the sub-compensation capacitor switching control strategy comprises:

7. The reactive compensation control method according to claim 5, wherein after the adding of the common compensation capacitor according to the common compensation capacitor switching control strategy, the method comprises the following steps:

when the power factor in the three-phase circuit after the common compensation is larger than the preset power factor input threshold, determining a target switching capacitor according to the operation time, the capacitor temperature and the switching times of the capacitor to be switched, and controlling the target switching capacitor to be input into the current three-phase circuit;

8. The reactive compensation control method according to claim 6, wherein after the adding of the partial compensation capacitor according to the partial compensation capacitor switching control strategy, the method comprises the following steps:

when the power factor in the three-phase circuit after the division compensation is larger than the preset power factor input threshold, determining a target switching capacitor according to the operation time, the capacitor temperature and the switching times of the capacitor to be switched, and controlling the target switching capacitor to be input into the current three-phase circuit;

9. The reactive compensation control method according to claim 2, wherein the determining to switch the capacitor to the current three-phase circuit according to the capacitor switching parameter comprises:

10. The reactive compensation control method according to claim 9, wherein the determining a target switching capacitor according to the operation time, the capacitance temperature and the switching times of a plurality of capacitors to be switched in the current three-phase circuit, and controlling the target switching capacitor to be switched into the current three-phase circuit comprises:

and when the three-phase unbalance is smaller than the three-phase unbalance threshold, inputting the cut-off capacitor according to a distributed compensation capacitor switching control strategy.

11. The reactive compensation control method according to claim 10, wherein the putting in the common compensation capacitor according to the common compensation capacitor switching control strategy comprises:

12. The reactive compensation control method according to claim 10, wherein the cutting of the branch compensation capacitor according to the branch compensation capacitor switching control strategy comprises:

13. The reactive compensation control method according to claim 11, wherein after the removing of the common compensation capacitor according to the common compensation capacitor switching control strategy, the method comprises:

when the power factor in the three-phase circuit after the common compensation is smaller than the preset power factor cut-off threshold, determining a target switching capacitor according to the running time, the capacitor temperature and the switching times of the capacitor to be switched, and controlling the target switching capacitor to be switched into the current three-phase circuit;

14. The reactive compensation control method according to claim 12, wherein after the division and compensation capacitor is cut according to the division and compensation capacitor switching control strategy, the method comprises the following steps:

15. The reactive compensation control method according to any one of claims 1 to 14, wherein the capacitors to be switched comprise capacitors to be switched which are connected and disconnected in the current three-phase circuit and capacitors to be switched which are connected and electrified in the current three-phase circuit; the method for controlling the target switching capacitor to be switched into the current three-phase circuit comprises the following steps of determining a target switching capacitor according to the running time, the capacitance temperature and the switching times of a plurality of capacitors to be switched in the current three-phase circuit, wherein the target switching capacitor is controlled to be switched into the current three-phase circuit, and the method comprises the following steps:

and/or sequentially comparing the running time, the capacitance temperature and the switching times of each capacitor to be cut off, and taking the capacitor to be cut off with the longest running time, the highest capacitance temperature and the most switching times as a target capacitor to be cut off; controlling the target cutting capacitor to cut from the current three-phase circuit.

16. A reactive compensation control method according to any one of claims 3 to 14, wherein the preset three-phase imbalance threshold value is 15%.

17. The reactive compensation control method according to claim 1, wherein the controlling the target switching capacitor before the current three-phase circuit comprises:

determining first input capacitor information of the current three-phase circuit and/or cutting first cut capacitor information of the current three-phase circuit based on user operation;

controlling a capacitor corresponding to the first input capacitor information to be input into the current three-phase circuit according to the first input capacitor information;

18. The reactive compensation control method according to claim 1, wherein before the controlling the target switching capacitor to be put into the current three-phase circuit, the method further comprises:

determining first input capacitor information of the current three-phase circuit and/or cutting first cutting capacitor information of the current three-phase circuit;

19. A reactive compensation control apparatus, comprising:

20. The reactive compensation control device of claim 19, further comprising a power module electrically connected to the control module, the power module configured to supply power to the control module.

21. The reactive compensation control device according to claim 19, further comprising a data storage module electrically connected to the control module, wherein the data storage module is configured to store one or more of the current circuit parameters, the capacitor switching parameters, the operating time, the capacitor temperature, and the switching times of the capacitor to be switched, the capacitor information, a preset three-phase imbalance threshold value, a preset power factor input threshold value, and a preset power factor input cut threshold value.

22. The reactive compensation control apparatus of claim 19, further comprising a communication module electrically connected with the control module,

the control module is also used for receiving control information sent by the server and analyzing the control information; determining first input capacitor information of the current three-phase circuit and/or cutting first cutting capacitor information of the current three-phase circuit; controlling a capacitor corresponding to the first input capacitor information to be input into the current three-phase circuit according to the first input capacitor information; and/or controlling the capacitor corresponding to the first cut capacitor information to be cut from the current three-phase circuit according to the first cut capacitor information.

23. The reactive compensation control device of claim 19, further comprising a display module electrically connected to the control module, the display module configured to display data transmitted by the control module.

24. The reactive compensation control device of claim 19, further comprising an interaction module electrically connected with the control module,

the interaction module is used for responding to the operation of a user, and determining first input capacitor information of the current three-phase circuit and/or cutting first cut capacitor information of the current three-phase circuit; and sending the first input capacitor information and/or the first cut capacitor information to a control module; or determining a three-phase unbalance threshold value, a preset power factor input threshold value and a preset power factor input cutting threshold value input by a user;

25. The reactive compensation control device of claim 19, wherein the switching driving module is provided with a plurality of first circuit output interfaces, and part of the first circuit output interfaces are connected with a capacitor to be switched.

26. The reactive compensation control device of claim 25, wherein the data detection module comprises a temperature detection module, a voltage detection module, and a current detection module;

the voltage detection module and the current detection module are used for detecting each phase voltage and current of the three-phase circuit; the three-phase circuit parameters comprise the temperature, the voltage and the current of the capacitor to be switched.

27. Reactive compensation control device according to claim 26, characterized in that the temperature detection module is provided with a number of second circuit output interfaces, some of which are connected to the capacitors to be switched in.

28. Reactive compensation control apparatus according to claim 26, wherein the control module is provided with a plurality of communication interfaces for terminal devices to be accessed.

29. A reactive compensation control method according to claim 21, wherein the preset three-phase imbalance threshold value is 15%.

30. A computer-readable storage medium, characterized in that the storage medium has stored thereon a computer program which, when being executed by a processor, carries out the steps of the reactive compensation control method according to any one of claims 1 to 18.

31. A computer arrangement comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the reactive compensation control method of any one of claims 1 to 18 when executing the program.