CN117713026A - Automatic power generation control method, device and equipment matched with direct-current power transmission system - Google Patents
Automatic power generation control method, device and equipment matched with direct-current power transmission system Download PDFInfo
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Abstract
The application relates to an automatic power generation control method, device, storage medium and equipment matched with a direct current transmission system, wherein the method comprises the steps of obtaining regulated direct current power and coordination control parameters; processing the regulated direct current power according to the regulating step length to obtain regulating times and regulating quantity of each round; calculating according to the adjustment rate, the adjustment quantity and the coordination control proportion coefficient of all the power generation PLCs to obtain the power adjustment rate and the power adjustment data of each power generation PLC; and adjusting the power of the direct-current transmission system and the power of the corresponding power generation PLC by adopting an adjusting rule according to the power adjusting rate, the adjusting quantity and the power adjusting data. According to the method, the power of the direct current transmission system and each power generation PLC is regulated by regulating the rounds and the regulating quantity of each round, so that the power regulation is carried out after the direct current power is finely regulated for multiple rounds, the direct current power of the direct current transmission system is matched with the output of the power generation PLCs in the automatic power generation control system, and the frequency fluctuation phenomenon of a power grid is reduced.
Description
Technical Field
The present disclosure relates to the field of self-generating control technologies for dc power transmission, and in particular, to an automatic power generation control method, device, storage medium, and apparatus for a dc power transmission system.
Background
When the power grid fails, a dispatching mechanism of the power system needs to control the direct current transmission system and the power plant, so that the purpose of matching and smooth adjustment of the direct current power of the power grid and the output of the power plant is achieved.
The existing direct current power and power plant output matching adjustment technology for the power grid can cause frequent fluctuation of the power grid frequency due to mismatching of the direct current power and the power plant output.
Disclosure of Invention
The embodiment of the application provides an automatic power generation control method, device, storage medium and equipment matched with a direct current transmission system, which are used for solving the technical problem that the frequency frequently fluctuates in the direct current power of the existing power grid and the output matching adjustment technology of a power plant.
In order to achieve the above purpose, the embodiment of the present application provides the following technical solutions:
in one aspect, an automatic power generation control method matched with a direct current power transmission system is provided, which comprises the following steps:
acquiring a direct current power regulation and coordination control parameter, wherein the coordination control parameter comprises a regulation step length, a time-out length threshold value, a coordination control proportion coefficient of a direct current remote control system and an automatic power generation control system, and a regulation proportion coefficient and a regulation rate of each power generation PLC;
Processing the regulated direct current power according to the regulating step length to obtain regulating rounds and regulating quantity of each round; calculating according to the adjustment rates of all the power generation PLCs to obtain a power adjustment rate of the power adjustment of the direct-current remote control system;
adjusting the power of a direct current transmission system in the direct current remote control system by adopting an adjusting rule according to the power adjusting rate and the adjusting quantity;
calculating according to the adjustment quantity and the coordination control proportion coefficient to obtain the power generation adjustment quantity of the automatic power generation control system of the wheel; calculating according to the power generation adjustment quantity and the adjustment proportion coefficient of each power generation PLC to obtain power adjustment data corresponding to the power generation PLC; and adjusting the power of the power generation PLC according to the power adjustment data by adopting the adjustment rule.
Preferably, the content of the regulation law includes:
acquiring a first current direct current power, a first power adjustment time and second current direct current power and second power adjustment time of all the power generation PLCs of the current direct current power transmission system after power adjustment;
calculating according to the first current direct current power and the second current direct current power and the corresponding power target values respectively to obtain corresponding difference absolute values;
If the absolute value of the difference is smaller than the corresponding regulation dead zone data, regulating the power of the direct current transmission system or the power generation PLC in place, obtaining the regulating times and carrying out the power regulation of the next round until the regulating times are equal to the regulating times;
if the absolute value of the difference is not smaller than the corresponding adjustment dead zone data, the power adjustment of the direct current transmission system or the power generation PLC is not in place, and a comparison result is obtained according to the comparison between the first power adjustment time or the second power adjustment time and the overtime length threshold;
and judging whether to continue to correspond to the power regulation of the direct current transmission system or the power generation PLC according to the comparison result.
Preferably, determining whether to continue adjusting the power of the corresponding dc power transmission system or the power generation PLC according to the comparison result includes:
if the comparison result is that the first power adjustment time or the second power adjustment time is not smaller than the overtime length threshold, ending the power adjustment of the corresponding direct current transmission system or the power generation PLC;
and if the comparison result shows that the first power adjustment time or the second power adjustment time is smaller than the overtime length threshold, adopting the adjustment quantity or the power generation adjustment quantity of the wheel to continuously adjust the power corresponding to the direct current power transmission system or the power generation PLC.
Preferably, the step of processing the regulated dc power according to the regulation step length, to obtain a regulation round and a regulation quantity of each round includes:
calculating by adopting a round calculation formula according to the adjustment step length and the adjustment direct current power to obtain an adjustment round; wherein the round calculation formula is L= (P/B) +1, wherein L is the adjustment round, P is the adjustment direct current power, and B is the adjustment step length;
the content of the distribution processing of the regulated direct current power comprises: the regulation step length is used as the regulation quantity of the previous L-1 round to distribute the regulated direct current power, and the rest unassigned regulated direct current power is used as the regulation quantity of the L-th round.
Preferably, the calculating according to the adjustment amount and the coordination control proportionality coefficient to obtain the power generation adjustment amount of the automatic power generation control system comprises: sampling according to the adjustment quantity and the coordination control proportion coefficientCalculating by using a power generation adjustment quantity calculation formula to obtain the power generation adjustment quantity of the automatic power generation control system; the calculation formula of the power generation adjustment amount is as follows: p (P) f ＝P t *K，P f To generate electricity to regulate the quantity, P t For the adjustment amount, K is a coordinated control scaling factor.
In still another aspect, an automatic power generation control device matched with a direct current power transmission system is provided, and the automatic power generation control device comprises a coordination control system, a direct current remote control system and an automatic power generation control system, wherein the direct current remote control system and the automatic power generation control system are in data interaction with the coordination control system, the direct current remote control system is connected with the direct current power transmission system, and the automatic power generation control system is connected with a plurality of power generation PLCs;
The coordination control system is used for acquiring the regulated direct current power and the coordination control parameters, and processing the regulated direct current power and the coordination control parameters according to the automatic power generation control method matched with the direct current power transmission system to obtain a power regulation rate, a regulation quantity, a power generation regulation quantity and power regulation data of each power generation PLC;
the direct-current remote control system is used for issuing remote control instructions for controlling the direct-current power transmission system to perform power adjustment according to the power adjustment rate and the adjustment quantity;
and the automatic power generation control system is used for issuing control instructions corresponding to the power generation PLC for power adjustment according to the power adjustment data.
In still another aspect, an automatic power generation control device matched with a direct current transmission system is provided, which comprises a data acquisition module, a parameter calculation module, a first power adjustment module and a second power adjustment module;
the data acquisition module is used for acquiring the regulated direct current power and the coordination control parameters, wherein the coordination control parameters comprise a regulating step length, a time-out length threshold value, a coordination control proportion coefficient of a direct current remote control system and an automatic power generation control system, and a regulating proportion coefficient and a regulating rate of each power generation PLC;
The parameter calculation module is used for processing the regulated direct current power according to the regulating step length to obtain regulating rounds and regulating quantity of each round; calculating according to the adjustment rates of all the power generation PLCs to obtain a power adjustment rate of the power adjustment of the direct-current remote control system;
the first power adjusting module is used for adjusting the power of a direct-current transmission system in the direct-current remote control system by adopting an adjusting rule according to the power adjusting rate and the adjusting quantity;
the second power adjusting module is used for calculating according to the adjusting quantity and the coordination control proportion coefficient to obtain the power generation adjusting quantity of the automatic power generation control system; calculating according to the power generation adjustment quantity and the adjustment proportion coefficient of each power generation PLC to obtain power adjustment data corresponding to the power generation PLC; and adjusting the power of the power generation PLC according to the power adjustment data by adopting the adjustment rule.
Preferably, the content of the regulation law includes:
acquiring a first current direct current power, a first power adjustment time and second current direct current power and second power adjustment time of all the power generation PLCs of the current direct current power transmission system after power adjustment;
Calculating according to the first current direct current power and the second current direct current power and the corresponding power target values respectively to obtain corresponding difference absolute values;
if the absolute value of the difference is smaller than the corresponding regulation dead zone data, regulating the power of the direct current transmission system or the power generation PLC in place, obtaining the regulating times and carrying out the power regulation of the next round until the regulating times are equal to the regulating times;
if the absolute value of the difference is not smaller than the corresponding adjustment dead zone data, the power adjustment of the direct current transmission system or the power generation PLC is not in place, and a comparison result is obtained according to the comparison between the first power adjustment time or the second power adjustment time and the overtime length threshold;
and judging whether to continue to correspond to the power regulation of the direct current transmission system or the power generation PLC according to the comparison result.
Preferably, determining whether to continue adjusting the power of the corresponding dc power transmission system or the power generation PLC according to the comparison result includes:
if the comparison result is that the first power adjustment time or the second power adjustment time is not smaller than the overtime length threshold, ending the power adjustment of the corresponding direct current transmission system or the power generation PLC;
And if the comparison result shows that the first power adjustment time or the second power adjustment time is smaller than the overtime length threshold, adopting the adjustment quantity or the power generation adjustment quantity of the wheel to continuously adjust the power corresponding to the direct current power transmission system or the power generation PLC.
In yet another aspect, a terminal device is provided, including a processor and a memory;
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is used for executing the automatic power generation control method matched with the direct current transmission system according to the instructions in the program codes.
In yet another aspect, a computer readable storage medium is provided for storing computer instructions that, when executed on a computer, cause the computer to perform the above-described method of controlling automatic power generation in conjunction with a dc power transmission system.
The method comprises the steps of obtaining regulated direct current power and coordination control parameters, wherein the coordination control parameters comprise regulation step length, overtime length threshold, coordination control proportion coefficient of a direct current remote control system and an automatic power generation control system, and regulation proportion coefficient and regulation rate of each power generation PLC; processing the regulated direct current power according to the regulating step length to obtain regulating rounds and regulating quantity of each round; calculating according to the adjustment rates of all power generation PLCs to obtain a power adjustment rate of power adjustment of the direct-current remote control system; adjusting the power of a direct-current transmission system in a direct-current remote control system by adopting an adjusting rule according to the power adjusting rate and the adjusting quantity; calculating according to the adjustment quantity and the coordination control proportion coefficient to obtain the power generation adjustment quantity of the automatic power generation control system; calculating according to the power generation adjustment quantity and the adjustment proportion coefficient of each power generation PLC to obtain power adjustment data of the corresponding power generation PLC; and adjusting the power of the corresponding power generation PLC according to the power adjustment data by adopting an adjustment rule. From the above technical solutions, the embodiments of the present application have the following advantages: according to the automatic power generation control method matched with the direct current power transmission system, the direct current power is divided into the adjustment quantity of each round and the adjustment round needing to be adjusted according to the adjustment step length, the power of the direct current remote control system and the automatic power generation control system is adjusted according to the adjustment round and the adjustment quantity of each round, the power adjustment is carried out after the direct current power is finely divided and adjusted in multiple rounds, so that the direct current power of the direct current power transmission system is matched with the output of a plurality of power generation PLCs in the automatic power generation control system, and the frequency frequent fluctuation phenomenon caused by a power grid dispatching adjustment system is reduced; the method solves the technical problem that the frequency frequently fluctuates in the existing direct current power of the power grid and the power plant output matching adjustment technology.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
Fig. 1 is a flowchart of steps of an automatic power generation control method for a direct current transmission system according to an embodiment of the present application;
fig. 2 is a schematic diagram of a framework of an automatic power generation control device for a direct current transmission system according to an embodiment of the present application;
fig. 3 is a schematic flow chart of an automatic power generation control method matched with a direct current transmission system according to an embodiment of the present application;
fig. 4 is a schematic diagram of a frame of an automatic power generation control device for a direct current transmission system according to an embodiment of the present application;
fig. 5 is a schematic diagram of a terminal device according to an embodiment of the present application.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the embodiments described below are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
In the description of the embodiments of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to the specific circumstances.
Patent terms of the present application:
automatic power generation control, also known as secondary frequency modulation, maintains the power system frequency or ensures a predetermined exchange power between the areas by remotely adjusting the active power of the genset when the power system frequency or link power changes within a defined area. The technical equipment system of the electric power system mainly comprises a power grid operation control system of each level of dispatching mechanism, a telecontrol transmission channel, a power plant remote terminal device or a computer monitoring system, a generator set coordination control system, a generator set and an active power adjusting device thereof, application software for realizing an AGC function and the like. The automatic power generation control system is divided into a dispatching master station and power plant substations, the dispatching master station calculates power to be regulated (increased and decreased) of a power grid according to the running state of the power system, then power instructions are distributed to the power plant substations, and the power plant substations execute the instructions to regulate self power.
The power generation PLC is also called a power plant controller Plant Local Controler (PLC), and the power plant controller for automatically generating power and controlling AGC refers to a direct object controlled by an AGC master station, and one PLC can correspond to one or more units. The PLC of the power plant can be a power plant monitoring system or a distributed control system DCS of the thermal power unit.
The remote control system of direct current gives the power control right of the direct current transmission system to a remote dispatching mechanism, and the dispatching personnel or the computer controls the remote dispatching mechanism.
The embodiment of the application provides an automatic power generation control method, device, storage medium and equipment matched with a direct current transmission system, and solves the technical problem that the frequency frequently fluctuates in the direct current power of an existing power grid and the output matching adjustment technology of a power plant.
Embodiment one:
fig. 1 is a flowchart illustrating steps of an automatic power generation control method for a direct current transmission system according to an embodiment of the present application, fig. 2 is a schematic diagram illustrating a frame of an automatic power generation control device for a direct current transmission system according to an embodiment of the present application, and fig. 3 is a flowchart illustrating an automatic power generation control method for a direct current transmission system according to an embodiment of the present application.
As shown in fig. 1 to 3, an embodiment of the present application provides an automatic power generation control method matched with a dc power transmission system, including the following steps:
S1, acquiring regulated direct current power and coordination control parameters, wherein the coordination control parameters comprise regulation step length, a timeout length threshold, coordination control proportion coefficients of a direct current remote control system and an automatic power generation control system, and regulation proportion coefficients and regulation rates of each power generation PLC.
In this embodiment, as shown in fig. 2, the automatic power generation control device matched with the direct current power transmission system includes a coordination control system 10, a direct current remote control system 20 and an automatic power generation control system 30 which interact with the coordination control system 10 in data, the direct current remote control system 20 is connected with the direct current power transmission system, and the automatic power generation control system 30 is connected with a plurality of power generation PLCs. The coordination control system 10 is used for receiving the state information of each power generation PLC transmitted by the automatic power generation control system 30 and the state information of the direct current system of the direct current remote control system 20. The coordination control system 10 is used for processing the regulated direct current power and the coordination control parameters to obtain power regulation rate, regulation quantity, power generation regulation quantity and power regulation data of each power generation PLC; and transmits the power adjustment rate and adjustment amount to the direct-current remote control system 20, and transmits the power generation adjustment amount and the power adjustment data of each power generation PLC to the automatic power generation control system 30. The status information of the power generation PLC includes: generated power, regulation rate, upper power limit, lower power limit, whether the power generation PLC is controlled, and the like. The direct current system state information includes: real-time direct current power, upper power limit, lower power limit, whether direct current is controlled, and the like.
The core of the automatic power generation control device matched with the direct current transmission system is a coordination control system 10, a dispatcher or other control functions of the dispatching system inputs regulated direct current power to the coordination control system 10, the coordination control system 10 performs calculation processing according to preset coordination control parameters, and then sends the calculated regulation and power generation regulation after coordination control to a direct current remote control system 20 and an automatic power generation control system 360 respectively; the direct-current remote control system 20 is used for receiving the adjustment quantity sent by the coordination control system 10 and then sending the adjustment quantity to a corresponding direct-current power transmission system; the automatic power generation control system 30 is configured to receive the power generation adjustment amount and the power adjustment data sent by the coordination control system, and send the power adjustment data to the corresponding power generation PLC.
In the embodiment of the application, in step S1, the regulated direct current power and the coordination control parameter required by the smooth adjustment of the direct current power of the power grid and the output of the power generation PLC power plant are obtained, and analysis data is provided for the smooth adjustment of the direct current power of the power grid and the output of the power generation PLC power plant in the subsequent step.
S2, processing the regulated direct current power according to the regulating step length to obtain regulating rounds and regulating quantity of each round; and calculating according to the adjustment rates of all the power generation PLCs to obtain the power adjustment rate of the power adjustment of the direct-current remote control system.
In step S2, the regulated dc power is decomposed according to the regulating step length obtained in step S1, so as to obtain the regulating times of the multiple power regulation and the regulating quantity of the power regulation of each round in the automatic power generation control method matched with the dc power transmission system. In this embodiment, the automatic power generation control method matched with the direct current transmission system divides the regulated direct current power into multiple power regulation by decomposing the regulated direct current power according to the regulation step length, so as to obtain the regulation quantity and the power regulation rate of each power regulation. In this embodiment, the automatic power generation control method matched with the direct current transmission system is applied to automatic power generation control equipment matched with the direct current transmission system, the adjustment amount and the power adjustment rate of each round of power adjustment are transmitted to the direct current remote control system 20 and the automatic power generation control system 30, the power adjustment of each round of power is controlled in place by the direct current transmission system and each power generation PLC through control instructions issued by the direct current remote control system 20 and the automatic power generation control system 30, then the control of the next round of power adjustment is performed, and the purpose of smooth adjustment of matching the direct current power of the direct current transmission system with the power plant output of each power generation PLC is achieved through multiple rounds of fine power adjustment of the automatic power generation control method matched with the direct current transmission system.
In the embodiment of the present application, the content of obtaining the power adjustment rate of the power adjustment of the direct current remote control system according to the adjustment rate calculation of all the power generation PLCs includes: and summing up and calculating the adjustment rates of all the power generation PLCs to obtain the power adjustment rate of the power adjustment of the direct-current remote control system.
The power adjustment rate is calculated by summing the adjustment rates obtained for each power generation PLC. In this embodiment, if the automatic power generation control system 30 controls three power generation PLCs, respectively denoted as power generation PLC1, power generation PLC2, and power generation PLC3, the adjustment rate of the power generation PLC1 is 20MW/min, the adjustment rate of the power generation PLC2 is 15MW/min, and the adjustment rate of the power generation PLC3 is 25MW/min, the power adjustment rate is 20+15+25=60 MW/min.
S3, adjusting the power of the direct-current transmission system in the direct-current remote control system by adopting an adjusting rule according to the power adjusting rate and the adjusting quantity.
S4, calculating according to the adjustment quantity and the coordination control proportion coefficient to obtain the power generation adjustment quantity of the automatic power generation control system; calculating according to the power generation adjustment quantity and the adjustment proportion coefficient of each power generation PLC to obtain power adjustment data of the corresponding power generation PLC; and adjusting the power of the corresponding power generation PLC according to the power adjustment data by adopting an adjustment rule.
In the step S3, the power adjustment rate and the adjustment amount of each power generation are used for adjusting the power of the direct-current power transmission system in the direct-current remote control system according to the power adjustment rate and the adjustment amount of each power generation, and meanwhile, the step S4 also firstly obtains the power generation adjustment amount of the power adjustment of the automatic power generation control system according to the adjustment amount obtained in the step S2 and the coordination control proportion coefficient obtained in the step S1, and then distributes the power generation adjustment amount of each power generation according to the adjustment proportion coefficient of each power generation PLC to obtain the power adjustment data of each power generation PLC in the power adjustment of the power generation; and then adjusting the power of the corresponding power generation PLC according to the power adjustment data. In this embodiment, if the power generation adjustment amount of the automatic power generation control system 30 is 60MW, the automatic power generation control system 30 controls three power generation PLCs, which are respectively denoted as power generation PLC1, power generation PLC2, and power generation PLC3, the adjustment scaling factor of the power generation PLC1 is 0.2, the adjustment scaling factor of the power generation PLC2 is 0.3, the adjustment scaling factor of the power generation PLC3 is 0.5, the power adjustment data of the power generation PLC1 is 60MW by 0.2=12 MW, the power adjustment data of the power generation PLC2 is 60MW by 0.3=18 MW, and the power adjustment data of the power generation PLC3 is 60MW by 0.5=30 MW.
In the embodiment of the application, according to the automatic power generation control method matched with the direct current power transmission system, the direct current remote control system and the automatic power generation control system are respectively subjected to power adjustment according to the adjustment quantity of each round obtained in the step S2 through the step S3 and the step S4, and the direct current power of the direct current power transmission system is matched with the output of a plurality of power generation PLCs in the automatic power generation control system through the power adjustment of the multi-round direct current remote control system and the automatic power generation control system of the adjustment round, so that the frequency frequent fluctuation phenomenon caused by a power grid dispatching adjustment system is reduced.
The method comprises the steps of obtaining regulated direct current power and coordination control parameters, wherein the coordination control parameters comprise regulation step length, overtime length threshold, coordination control proportion coefficients of a direct current remote control system and an automatic power generation control system, and regulation proportion coefficients and regulation rates of each power generation PLC; processing the regulated direct current power according to the regulating step length to obtain regulating rounds and regulating quantity of each round; calculating according to the adjustment rates of all power generation PLCs to obtain a power adjustment rate of power adjustment of the direct-current remote control system; adjusting the power of a direct-current transmission system in a direct-current remote control system by adopting an adjusting rule according to the power adjusting rate and the adjusting quantity; calculating according to the adjustment quantity and the coordination control proportion coefficient to obtain the power generation adjustment quantity of the automatic power generation control system; calculating according to the power generation adjustment quantity and the adjustment proportion coefficient of each power generation PLC to obtain power adjustment data of the corresponding power generation PLC; and adjusting the power of the corresponding power generation PLC according to the power adjustment data by adopting an adjustment rule. According to the automatic power generation control method matched with the direct current power transmission system, the direct current power is divided into the adjustment quantity of each round and the adjustment round needing to be adjusted according to the adjustment step length, the power of the direct current remote control system and the automatic power generation control system is adjusted according to the adjustment round and the adjustment quantity of each round, the power adjustment is carried out after the direct current power is finely divided and adjusted in multiple rounds, so that the direct current power of the direct current power transmission system is matched with the output of a plurality of power generation PLCs in the automatic power generation control system, and the frequency frequent fluctuation phenomenon caused by a power grid dispatching adjustment system is reduced; the method solves the technical problem that the frequency frequently fluctuates in the existing direct current power of the power grid and the power plant output matching adjustment technology.
As shown in fig. 3, in one embodiment of the present application, the content of the adjustment rule includes:
acquiring a first current direct current power, a first power adjustment time and a second current direct current power and a second power adjustment time of all power generation PLCs of a current direct current power transmission system after power adjustment;
calculating according to the first current direct current power and the second current direct current power and the corresponding power target values respectively to obtain corresponding difference absolute values;
if the absolute value of the difference is smaller than the corresponding regulation dead zone data, regulating the power of the round of direct current transmission system or the power generation PLC in place, obtaining the regulating times and carrying out the power regulation of the next round until the regulating times are equal to the regulating times;
if the absolute value of the difference value is not smaller than the corresponding regulation dead zone data, the power regulation of the round of direct current transmission system or the power generation PLC is not in place, and a comparison result is obtained according to the comparison of the first power regulation time or the second power regulation time and the overtime length threshold;
and judging whether to continue to adjust the power of the corresponding direct current transmission system or the power generation PLC according to the comparison result.
After the power adjustment is performed on the direct current transmission system and each power generation PLC according to the adjustment amount obtained in the step S2 and the power adjustment data obtained in the step S4, whether the power adjustment is in place or not is required to be judged, namely whether the power adjustment is completed or not is judged; the automatic power generation control method matched with the direct current transmission system adopts an adjustment rule to judge. In this embodiment, the content of the regulation rule is to obtain the first current dc power, the first power regulation time, and the second current dc power and the second power regulation time of all the power generation PLCs of the dc power transmission system after the power regulation of the round; calculating the absolute value of the difference value according to the first current direct current power and the second current direct current power and the corresponding power target value respectively as a corresponding difference value absolute value; secondly, comparing the absolute value of the difference with corresponding dead zone adjustment data to judge whether the power of the direct current transmission system or the power generation PLC is adjusted in place; and under the condition that the power of the current round is regulated in place, acquiring the regulation times and carrying out the power regulation of the next round until the power regulation of the current round is finished if the power regulation of the current round is the power regulation of the last round, and the power regulation of the direct current power transmission system and each power generation PLC is finished, wherein the regulation times are equal to the regulation times. Under the condition that the power adjustment is not in place, the comparison result is obtained according to the comparison between the first power adjustment time or the second power adjustment time and the overtime threshold; and judging whether to continue to adopt the adjustment quantity of the wheel to carry out power adjustment on the direct-current transmission system or adopt the power adjustment data of the wheel to carry out power adjustment on the corresponding power generation PLC according to the comparison result. In the present embodiment, the adjustment dead zone data may be set according to the need, and is not particularly limited here.
As shown in fig. 3, in an embodiment of the present application, determining whether to continue to adjust the power of the corresponding dc power transmission system or power generation PLC according to the comparison result includes:
if the comparison result shows that the first power adjustment time or the second power adjustment time is not less than the overtime length threshold, ending the power adjustment of the corresponding direct current transmission system or the power generation PLC;
if the comparison result is that the first power adjustment time or the second power adjustment time is smaller than the overtime length threshold, the adjustment quantity or the power generation adjustment quantity of the wheel is adopted to continuously adjust the power of the corresponding direct current transmission system or the power generation PLC.
It should be noted that the timeout length threshold may be set according to requirements, and is not particularly limited herein.
In one embodiment of the present application, the processing the regulated dc power according to the regulating step size, to obtain the regulating turn and the regulating quantity of each turn includes:
calculating by adopting a round calculation formula according to the adjustment step length and the adjustment direct current power to obtain an adjustment round; wherein the round calculation formula is L= (P/B) +1, wherein L is the adjustment round, P is the adjustment direct current power, and B is the adjustment step length;
the content of the distribution processing of the regulated direct current power comprises: the adjusting step length is used as the adjusting quantity of the previous L-1 wheel to distribute the adjusting direct current power, and the remaining unassigned adjusting direct current power is used as the adjusting quantity of the L-th wheel.
It should be noted that, if the regulated dc power is 200MW and the regulating step size is 60MW, the calculated regulating round is 4, and the 200MW is divided into four regulating amounts of 60MW, and 20MW, where 20MW is the remaining unassigned regulated dc power. In this embodiment, the content of the distribution processing of the regulated dc power may be understood that the regulating amounts of the previous L-1 round are all the regulating step length B, and the remaining unallocated regulated dc power is P-B (L-1), P-B (L-1) being the regulating amount of the L-th round.
In one embodiment of the present application, calculating, according to the adjustment amount and the coordination control scaling factor, the power generation adjustment amount of the wheel automatic power generation control system includes: calculating by adopting a power generation adjustment quantity calculation formula according to the adjustment quantity and the coordination control proportion coefficient to obtain the power generation adjustment quantity of the automatic power generation control system; the calculation formula of the power generation adjustment quantity is as follows: p (P) f ＝P t *K，P f To generate electricity to regulate the quantity, P t For the adjustment amount, K is a coordinated control scaling factor.
If the adjustment amount of the power adjustment of the current round is 60MW, the single round adjustment amount of the direct current remote control system is 60MW; if the coordination control proportionality coefficient is 1.0, the power generation adjustment quantity of the automatic power generation control system is 60 mw1.0=60 MW; if the coordination control proportionality coefficient is 0.8, the power generation adjustment quantity of the automatic power generation control system is 60MW 0.8=48 MW; if the proportional coefficient of the coordination control is 1.2, the power generation adjustment amount of the automatic power generation control system is 60MW by 1.2=72 MW.
In the embodiment of the application, when the dispatching mechanism needs to control the direct-current power transmission system and each power generation PLC, the automatic power generation control method matched with the direct-current power transmission system realizes cooperative control of the direct-current power transmission system and each power generation PLC, and achieves the purpose of smooth adjustment of matching of the direct-current power and the output of all the power generation PLCs in the automatic power generation control system.
Embodiment two:
as shown in fig. 2, the embodiment of the application provides an automatic power generation control device matched with a direct current power transmission system, which comprises a coordination control system, a direct current remote control system and an automatic power generation control system, wherein the direct current remote control system and the automatic power generation control system are in data interaction with the coordination control system, the direct current remote control system is connected with the direct current power transmission system, and the automatic power generation control system is connected with a plurality of power generation PLCs;
the coordination control system is used for acquiring the regulated direct current power and the coordination control parameters, and processing the regulated direct current power and the coordination control parameters according to the automatic power generation control method matched with the direct current power transmission system to obtain power regulation rate, regulation quantity, power generation regulation quantity and power regulation data of each power generation PLC;
the direct-current remote control system is used for issuing a remote control instruction for controlling the direct-current transmission system to carry out power adjustment according to the power adjustment rate and the adjustment quantity;
And the automatic power generation control system is used for issuing control instructions for controlling the corresponding power generation PLC to perform power adjustment according to the power adjustment data.
The content of the automatic power generation control method in accordance with the dc power transmission system in this embodiment has been described in the first embodiment, and the description of the content of the automatic power generation control method in accordance with the dc power transmission system in this embodiment will not be repeated.
In this embodiment, as shown in fig. 2, the automatic power generation control device matched with the direct current power transmission system includes a coordination control system 10, a direct current remote control system 20 and an automatic power generation control system 30 which interact with the coordination control system 10 in data, the direct current remote control system 20 is connected with the direct current power transmission system, and the automatic power generation control system 30 is connected with a plurality of power generation PLCs. The coordination control system 10 is used for receiving the state information of each power generation PLC transmitted by the automatic power generation control system 30 and the state information of the direct current system of the direct current remote control system 20. The coordination control system 10 is used for processing the regulated direct current power and the coordination control parameters to obtain power regulation rate, regulation quantity, power generation regulation quantity and power regulation data of each power generation PLC; and transmits the power adjustment rate and adjustment amount to the direct-current remote control system 20, and transmits the power generation adjustment amount and the power adjustment data of each power generation PLC to the automatic power generation control system 30. The status information of the power generation PLC includes: generated power, regulation rate, upper power limit, lower power limit, whether the power generation PLC is controlled, and the like. The direct current system state information includes: real-time direct current power, upper power limit, lower power limit, whether direct current is controlled, and the like.
The core of the automatic power generation control device matched with the direct current transmission system is a coordination control system 10, a dispatcher or other control functions of the dispatching system inputs regulated direct current power to the coordination control system 10, the coordination control system 10 performs calculation processing according to preset coordination control parameters, and then sends the calculated regulation and power generation regulation after coordination control to a direct current remote control system 20 and an automatic power generation control system 360 respectively; the direct-current remote control system 20 is used for receiving the adjustment quantity sent by the coordination control system 10 and then sending the adjustment quantity to a corresponding direct-current power transmission system; the automatic power generation control system 30 is configured to receive the power generation adjustment amount and the power adjustment data sent by the coordination control system, and send the power adjustment data to the corresponding power generation PLC.
Embodiment III:
fig. 4 is a schematic diagram of a frame of an automatic power generation control device for a direct current transmission system according to an embodiment of the present application.
As shown in fig. 4, an embodiment of the present application provides an automatic power generation control device matched with a dc power transmission system, which includes a data acquisition module 100, a parameter calculation module 200, a first power adjustment module 300 and a second power adjustment module 400;
The data acquisition module 100 is configured to acquire an adjustment dc power and a coordination control parameter, where the coordination control parameter includes an adjustment step length, a timeout length threshold, a coordination control scaling factor of the dc remote control system and the automatic power generation control system, and an adjustment scaling factor and an adjustment rate of each power generation PLC;
the parameter calculation module 200 is used for processing the regulated direct current power according to the regulating step length to obtain regulating rounds and regulating quantity of each round; calculating according to the adjustment rates of all power generation PLCs to obtain a power adjustment rate of power adjustment of the direct-current remote control system;
the first power adjusting module 300 is configured to adjust power of a direct current transmission system in the direct current remote control system according to a power adjusting rate and an adjusting amount by adopting an adjusting rule;
the second power adjusting module 400 is used for calculating according to the adjusting quantity and the coordination control proportion coefficient to obtain the power generation adjusting quantity of the automatic power generation control system; calculating according to the power generation adjustment quantity and the adjustment proportion coefficient of each power generation PLC to obtain power adjustment data of the corresponding power generation PLC; and adjusting the power of the corresponding power generation PLC according to the power adjustment data by adopting an adjustment rule.
In the data acquisition module 100 of this embodiment, the adjusted dc power and the coordinated control parameters required for the smooth adjustment of the dc power of the power grid and the output of the power generation PLC power plant are acquired, and analysis data is provided for the smooth adjustment of the dc power of the power grid and the output of the power generation PLC power plant in the subsequent step.
In the parameter calculation module 200 of this embodiment, the adjustment dc power is decomposed according to the adjustment step length obtained in step S1, so as to obtain the adjustment round and the adjustment quantity of each round of power adjustment required by the automatic power generation control device of the matching dc power transmission system. In this embodiment, the automatic power generation control device matched with the dc power transmission system divides the regulated dc power into multiple power regulation by decomposing the regulated dc power according to the regulation step length, so as to obtain the regulation amount and the power regulation rate of each power regulation. In this embodiment, the automatic power generation control device matched with the direct current transmission system is applied to automatic power generation control equipment matched with the direct current transmission system, the adjustment amount and the power adjustment rate of each round of power adjustment are transmitted to the direct current remote control system 20 and the automatic power generation control system 30, the power adjustment of each round of power is controlled in place by the direct current transmission system and each power generation PLC through control instructions issued by the direct current remote control system 20 and the automatic power generation control system 30, then the control of the next round of power adjustment is performed, and the purpose of smooth adjustment of matching the direct current power of the direct current transmission system with the power plant output of each power generation PLC is achieved through multi-round subdivision of the automatic power generation control device matched with the direct current transmission system.
In the embodiment of the present application, the content of obtaining the power adjustment rate of the power adjustment of the direct current remote control system according to the adjustment rate calculation of all the power generation PLCs includes: and summing up and calculating the adjustment rates of all the power generation PLCs to obtain the power adjustment rate of the power adjustment of the direct-current remote control system.
The power adjustment rate is calculated by summing the adjustment rates obtained for each power generation PLC. In this embodiment, if the automatic power generation control system 30 controls three power generation PLCs, respectively denoted as power generation PLC1, power generation PLC2, and power generation PLC3, the adjustment rate of the power generation PLC1 is 20MW/min, the adjustment rate of the power generation PLC2 is 15MW/min, and the adjustment rate of the power generation PLC3 is 25MW/min, the power adjustment rate is 20+15+25=60 MW/min.
In the first power adjustment module 300 and the second power adjustment module 400 of this embodiment, the first power adjustment module 300 performs power adjustment on the dc power transmission system in the dc remote control system according to the power adjustment rate and each round of adjustment amount obtained by the parameter calculation module 200, and meanwhile, the second power adjustment module 400 also obtains the power adjustment amount of the power adjustment of the automatic power generation control system according to the adjustment amount obtained by the parameter calculation module 200 and the coordination control proportionality coefficient obtained by the data obtaining module 100, and then distributes the power adjustment amount of the power generation according to the adjustment proportionality coefficient of each power generation PLC to obtain the power adjustment data of each power generation PLC in the power adjustment of the power generation; and then adjusting the power of the corresponding power generation PLC according to the power adjustment data. In this embodiment, if the power generation adjustment amount of the automatic power generation control system 30 is 60MW, the automatic power generation control system 30 controls three power generation PLCs, which are respectively denoted as power generation PLC1, power generation PLC2, and power generation PLC3, the adjustment scaling factor of the power generation PLC1 is 0.2, the adjustment scaling factor of the power generation PLC2 is 0.3, the adjustment scaling factor of the power generation PLC3 is 0.5, the power adjustment data of the power generation PLC1 is 60MW by 0.2=12 MW, the power adjustment data of the power generation PLC2 is 60MW by 0.3=18 MW, and the power adjustment data of the power generation PLC3 is 60MW by 0.5=30 MW.
In the embodiment of the application, the automatic power generation control device matched with the direct current transmission system respectively carries out power adjustment on the direct current remote control system and the automatic power generation control system according to the adjustment quantity of each round obtained by the parameter calculation module 200 through the first power adjustment module 300 and the second power adjustment module 400, and the power adjustment of the direct current remote control system and the automatic power generation control system is carried out through multiple rounds of adjustment, so that the direct current power of the direct current transmission system is matched with the output of a plurality of power generation PLCs in the automatic power generation control system, and the frequency frequent fluctuation phenomenon caused by a power grid dispatching adjustment system is reduced.
According to the embodiment of the application, the automatic power generation control device matched with the direct current power transmission system divides the regulated direct current power into the regulating quantity of each round and the regulating round needing to be regulated according to the regulating round and the regulating quantity of each round, and the power of the direct current remote control system and the automatic power generation control system is regulated according to the regulating round and the regulating quantity of each round, so that the power regulation is carried out after the direct current power is finely regulated in multiple rounds, the direct current power of the direct current power transmission system is matched with the output of a plurality of power generation PLCs in the automatic power generation control system, and the frequency frequent fluctuation phenomenon caused by a power grid dispatching regulation system is reduced; the method solves the technical problem that the frequency frequently fluctuates in the existing direct current power of the power grid and the power plant output matching adjustment technology.
In one embodiment of the present application, the content of the adjustment law includes:
acquiring a first current direct current power, a first power adjustment time and a second current direct current power and a second power adjustment time of all power generation PLCs of a current direct current power transmission system after power adjustment;
calculating according to the first current direct current power and the second current direct current power and the corresponding power target values respectively to obtain corresponding difference absolute values;
if the absolute value of the difference is smaller than the corresponding regulation dead zone data, regulating the power of the round of direct current transmission system or the power generation PLC in place, obtaining the regulating times and carrying out the power regulation of the next round until the regulating times are equal to the regulating times;
if the absolute value of the difference value is not smaller than the corresponding regulation dead zone data, the power regulation of the round of direct current transmission system or the power generation PLC is not in place, and a comparison result is obtained according to the comparison of the first power regulation time or the second power regulation time and the overtime length threshold;
and judging whether to continue to adjust the power of the corresponding direct current transmission system or the power generation PLC according to the comparison result.
It should be noted that, after power adjustment is performed on the dc power transmission system and each power generation PLC according to the adjustment amount obtained by the parameter calculation module 200 and the power adjustment data obtained by the second power adjustment module 400, it is required to determine whether the power adjustment is in place, that is, whether the power adjustment is completed; the automatic power generation control device matched with the direct current transmission system adopts an adjustment rule to judge. In this embodiment, the content of the regulation rule is to obtain the first current dc power, the first power regulation time, and the second current dc power and the second power regulation time of all the power generation PLCs of the dc power transmission system after the power regulation of the round; calculating the absolute value of the difference value according to the first current direct current power and the second current direct current power and the corresponding power target value respectively as a corresponding difference value absolute value; secondly, comparing the absolute value of the difference with corresponding dead zone adjustment data to judge whether the power of the direct current transmission system or the power generation PLC is adjusted in place; and under the condition that the power of the current round is regulated in place, acquiring the regulation times and carrying out the power regulation of the next round until the power regulation of the current round is finished if the power regulation of the current round is the power regulation of the last round, and the power regulation of the direct current power transmission system and each power generation PLC is finished, wherein the regulation times are equal to the regulation times. Under the condition that the power adjustment is not in place, the comparison result is obtained according to the comparison between the first power adjustment time or the second power adjustment time and the overtime threshold; and judging whether to continue to adopt the adjustment quantity of the wheel to carry out power adjustment on the direct-current transmission system or adopt the power adjustment data of the wheel to carry out power adjustment on the corresponding power generation PLC according to the comparison result. In the present embodiment, the adjustment dead zone data may be set according to the need, and is not particularly limited here.
In one embodiment of the present application, determining whether to continue adjusting the power of the corresponding dc power transmission system or power generation PLC according to the comparison result includes:
if the comparison result shows that the first power adjustment time or the second power adjustment time is not less than the overtime length threshold, ending the power adjustment of the corresponding direct current transmission system or the power generation PLC;
if the comparison result is that the first power adjustment time or the second power adjustment time is smaller than the overtime length threshold, the adjustment quantity or the power generation adjustment quantity of the wheel is adopted to continuously adjust the power of the corresponding direct current transmission system or the power generation PLC.
It should be noted that the timeout length threshold may be set according to requirements, and is not particularly limited herein.
In one embodiment of the present application, the parameter calculation module 200 includes: a calculation sub-module and an allocation processing sub-module;
the calculation sub-module is used for calculating by adopting a round calculation formula according to the adjustment step length and the adjustment direct current power to obtain an adjustment round; wherein the round calculation formula is L= (P/B) +1, wherein L is the adjustment round, P is the adjustment direct current power, and B is the adjustment step length;
and the allocation submodule is used for allocating the regulated direct current power by taking the regulation step length as the regulation quantity of the previous L-1 wheel and taking the rest unallocated regulated direct current power as the regulation quantity of the L-th wheel.
It should be noted that, if the regulated dc power is 200MW and the regulating step size is 60MW, the calculated regulating round is 4, and the 200MW is divided into four regulating amounts of 60MW, and 20MW, where 20MW is the remaining unassigned regulated dc power.
In one embodiment of the present application, the second power adjustment module 400 is further configured to calculate, according to the adjustment amount and the coordination control scaling factor, a power generation adjustment amount calculation formula to obtain a power generation adjustment amount of the automatic power generation control system; the calculation formula of the power generation adjustment quantity is as follows: p (P) f ＝P t *K，P f To generate electricity to regulate the quantity, P t For the adjustment amount, K is a coordinated control scaling factor.
If the adjustment amount of the power adjustment of the current round is 60MW, the single round adjustment amount of the direct current remote control system is 60MW; if the coordination control proportionality coefficient is 1.0, the power generation adjustment quantity of the automatic power generation control system is 60 mw1.0=60 MW; if the coordination control proportionality coefficient is 0.8, the power generation adjustment quantity of the automatic power generation control system is 60MW 0.8=48 MW; if the proportional coefficient of the coordination control is 1.2, the power generation adjustment amount of the automatic power generation control system is 60MW by 1.2=72 MW.
In the embodiment of the application, when the dispatching mechanism needs to control the direct-current power transmission system and each power generation PLC, the automatic power generation control device matched with the direct-current power transmission system realizes cooperative control of the direct-current power transmission system and each power generation PLC, and achieves the purpose of smooth adjustment of matching of the direct-current power and the output of all the power generation PLCs in the automatic power generation control system.
It should be noted that, the content of the module in the third apparatus corresponds to the content of the steps of the method in the first embodiment.
Embodiment III:
the embodiment of the application provides a computer readable storage medium, which is used for storing computer instructions, and when the computer readable storage medium runs on a computer, the computer is caused to execute the automatic power generation control method matched with a direct current power transmission system.
It should be noted that the computer readable storage medium may comprise a memory of instructions executable by a processor of the device to perform the method described above. The storage medium may be a non-transitory computer readable storage medium, for example, a ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like. Readable storage media for other implementations, such as quantum storage, graphene storage, and the like.
Embodiment four:
fig. 5 is a schematic diagram of a terminal device according to an embodiment of the present application.
As shown in fig. 5, an embodiment of the present application provides a terminal device, including a processor and a memory;
a memory for storing program code and transmitting the program code to the processor;
And the processor is used for executing the automatic power generation control method matched with the direct current transmission system according to the instructions in the program codes.
It should be noted that the processor is configured to execute the steps in the embodiment of the automatic power generation control method with respect to the dc power transmission system according to the instructions in the program code. In the alternative, the processor, when executing the computer program, performs the functions of the modules/units in the system/apparatus embodiments described above.
For example, a computer program may be split into one or more modules/units, which are stored in a memory and executed by a processor to complete the present application. One or more of the modules/units may be a series of computer program instruction segments capable of performing specific functions for describing the execution of the computer program in the terminal device.
The terminal device may be a computing device such as a desktop computer, a notebook computer, a palm computer, a cloud server, etc. The terminal device may include, but is not limited to, a processor, a memory. It will be appreciated by those skilled in the art that the terminal device is not limited and may include more or less components than those illustrated, or may be combined with certain components, or different components, e.g., the terminal device may also include input and output devices, network access devices, buses, etc.
The processor may be a central processing unit (Centrdl Processing Unit, CPU), other general purpose processors, digital signal processors (Digitdl Signdl Processor, DSP), application specific integrated circuits (dpplicdtion Specific Integrdted Circuit, dSIC), off-the-shelf programmable gate arrays (Field-Progrdmmdble Gdte drrdy, FPGd) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory may be an internal storage unit of the terminal device, such as a hard disk or a memory of the terminal device. The memory may also be an external storage device of the terminal device, such as a plug-in hard disk provided on the terminal device, a smart card (SMC), a Secure Digital (SD) card, a flash memory card (Fldsh Cdrd), etc. Further, the memory may also include both an internal storage unit of the terminal device and an external storage device. The memory is used for storing computer programs and other programs and data required by the terminal device. The memory may also be used to temporarily store data that has been output or is to be output.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
In the several embodiments provided in the present application, it should be understood that the disclosed systems, apparatuses, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-Only Memory (ROM), a random access Memory (RdM, rdndom dccess Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The above embodiments are merely for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (11)
1. An automatic power generation control method matched with a direct current transmission system is characterized by comprising the following steps:
acquiring a direct current power regulation and coordination control parameter, wherein the coordination control parameter comprises a regulation step length, a time-out length threshold value, a coordination control proportion coefficient of a direct current remote control system and an automatic power generation control system, and a regulation proportion coefficient and a regulation rate of each power generation PLC;
processing the regulated direct current power according to the regulating step length to obtain regulating rounds and regulating quantity of each round; calculating according to the adjustment rates of all the power generation PLCs to obtain a power adjustment rate of the power adjustment of the direct-current remote control system;
Adjusting the power of a direct current transmission system in the direct current remote control system by adopting an adjusting rule according to the power adjusting rate and the adjusting quantity;
calculating according to the adjustment quantity and the coordination control proportion coefficient to obtain the power generation adjustment quantity of the automatic power generation control system of the wheel; calculating according to the power generation adjustment quantity and the adjustment proportion coefficient of each power generation PLC to obtain power adjustment data corresponding to the power generation PLC; and adjusting the power of the power generation PLC according to the power adjustment data by adopting the adjustment rule.
2. The automatic power generation control method according to claim 1, wherein the content of the regulation law includes:
acquiring a first current direct current power, a first power adjustment time and second current direct current power and second power adjustment time of all the power generation PLCs of the current direct current power transmission system after power adjustment;
calculating according to the first current direct current power and the second current direct current power and the corresponding power target values respectively to obtain corresponding difference absolute values;
if the absolute value of the difference is smaller than the corresponding regulation dead zone data, regulating the power of the direct current transmission system or the power generation PLC in place, obtaining the regulating times and carrying out the power regulation of the next round until the regulating times are equal to the regulating times;
If the absolute value of the difference is not smaller than the corresponding adjustment dead zone data, the power adjustment of the direct current transmission system or the power generation PLC is not in place, and a comparison result is obtained according to the comparison between the first power adjustment time or the second power adjustment time and the overtime length threshold;
and judging whether to continue to correspond to the power regulation of the direct current transmission system or the power generation PLC according to the comparison result.
3. The automatic power generation control method according to claim 2, wherein determining whether to continue adjusting the power of the corresponding dc power transmission system or the power generation PLC according to the comparison result includes:
if the comparison result is that the first power adjustment time or the second power adjustment time is not smaller than the overtime length threshold, ending the power adjustment of the corresponding direct current transmission system or the power generation PLC;
and if the comparison result shows that the first power adjustment time or the second power adjustment time is smaller than the overtime length threshold, adopting the adjustment quantity or the power generation adjustment quantity of the wheel to continuously adjust the power corresponding to the direct current power transmission system or the power generation PLC.
4. The automatic power generation control method according to claim 1, wherein the step of processing the regulated dc power according to the regulation step length to obtain a regulation round and a regulation amount of each round includes:
calculating by adopting a round calculation formula according to the adjustment step length and the adjustment direct current power to obtain an adjustment round; wherein the round calculation formula is L= (P/B) +1, wherein L is the adjustment round, P is the adjustment direct current power, and B is the adjustment step length;
the content of the distribution processing of the regulated direct current power comprises: the regulation step length is used as the regulation quantity of the previous L-1 round to distribute the regulated direct current power, and the rest unassigned regulated direct current power is used as the regulation quantity of the L-th round.
5. The automatic power generation control method according to claim 1, wherein the calculating according to the adjustment amount and the coordination control scaling factor to obtain the power generation adjustment amount of the automatic power generation control system comprises: calculating by adopting a power generation adjustment quantity calculation formula according to the adjustment quantity and the coordination control proportion coefficient to obtain the power generation adjustment quantity of the automatic power generation control system of the wheel; the calculation formula of the power generation adjustment amount is as follows: p (P) f ＝P t *K，P f To generate electricity to regulate the quantity, P t For the adjustment amount, K is a coordinated control scaling factor.
6. The automatic power generation control equipment matched with the direct-current power transmission system is characterized by comprising a coordination control system, a direct-current remote control system and an automatic power generation control system, wherein the direct-current remote control system and the automatic power generation control system are in data interaction with the coordination control system, the direct-current remote control system is connected with the direct-current power transmission system, and the automatic power generation control system is connected with a plurality of power generation PLCs;
the coordination control system is used for acquiring the regulated direct current power and the coordination control parameters and processing the regulated direct current power and the coordination control parameters according to the automatic power generation control method of the coordination direct current transmission system according to any one of claims 1-5 to obtain power regulation rate, regulation quantity, power generation regulation quantity and power regulation data of each power generation PLC;
the direct-current remote control system is used for issuing remote control instructions for controlling the direct-current power transmission system to perform power adjustment according to the power adjustment rate and the adjustment quantity;
and the automatic power generation control system is used for issuing control instructions corresponding to the power generation PLC for power adjustment according to the power adjustment data.
7. An automatic power generation control device matched with a direct current transmission system is characterized by comprising a data acquisition module, a parameter calculation module, a first power adjustment module and a second power adjustment module;
the data acquisition module is used for acquiring the regulated direct current power and the coordination control parameters, wherein the coordination control parameters comprise a regulating step length, a time-out length threshold value, a coordination control proportion coefficient of a direct current remote control system and an automatic power generation control system, and a regulating proportion coefficient and a regulating rate of each power generation PLC;
the parameter calculation module is used for processing the regulated direct current power according to the regulating step length to obtain regulating rounds and regulating quantity of each round; calculating according to the adjustment rates of all the power generation PLCs to obtain a power adjustment rate of the power adjustment of the direct-current remote control system;
the first power adjusting module is used for adjusting the power of a direct-current transmission system in the direct-current remote control system by adopting an adjusting rule according to the power adjusting rate and the adjusting quantity;
the second power adjusting module is used for calculating according to the adjusting quantity and the coordination control proportion coefficient to obtain the power generation adjusting quantity of the automatic power generation control system; calculating according to the power generation adjustment quantity and the adjustment proportion coefficient of each power generation PLC to obtain power adjustment data corresponding to the power generation PLC; and adjusting the power of the power generation PLC according to the power adjustment data by adopting the adjustment rule.
8. The automatic power generation control device for a direct current transmission system according to claim 7, wherein the content of the regulation law includes:
acquiring a first current direct current power, a first power adjustment time and second current direct current power and second power adjustment time of all the power generation PLCs of the current direct current power transmission system after power adjustment;
calculating according to the first current direct current power and the second current direct current power and the corresponding power target values respectively to obtain corresponding difference absolute values;
if the absolute value of the difference is smaller than the corresponding regulation dead zone data, regulating the power of the direct current transmission system or the power generation PLC in place, obtaining the regulating times and carrying out the power regulation of the next round until the regulating times are equal to the regulating times;
if the absolute value of the difference is not smaller than the corresponding adjustment dead zone data, the power adjustment of the direct current transmission system or the power generation PLC is not in place, and a comparison result is obtained according to the comparison between the first power adjustment time or the second power adjustment time and the overtime length threshold;
and judging whether to continue to correspond to the power regulation of the direct current transmission system or the power generation PLC according to the comparison result.
9. The automatic power generation control device according to claim 8, wherein determining whether to continue adjusting the power of the corresponding dc power transmission system or the power generation PLC according to the comparison result includes:
if the comparison result is that the first power adjustment time or the second power adjustment time is not smaller than the overtime length threshold, ending the power adjustment of the corresponding direct current transmission system or the power generation PLC;
and if the comparison result shows that the first power adjustment time or the second power adjustment time is smaller than the overtime length threshold, adopting the adjustment quantity or the power generation adjustment quantity of the wheel to continuously adjust the power corresponding to the direct current power transmission system or the power generation PLC.
10. A terminal device comprising a processor and a memory;
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is configured to execute the automatic power generation control method according to any one of claims 1 to 5 in conjunction with a dc power transmission system according to instructions in the program code.
11. A computer readable storage medium storing computer instructions which, when run on a computer, cause the computer to perform the method of controlling automatic power generation in conjunction with a direct current transmission system as claimed in any one of claims 1 to 5.
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