CN104808092A - Detection system and method for electric energy quality influence factors - Google Patents
Detection system and method for electric energy quality influence factors Download PDFInfo
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- CN104808092A CN104808092A CN201510239819.8A CN201510239819A CN104808092A CN 104808092 A CN104808092 A CN 104808092A CN 201510239819 A CN201510239819 A CN 201510239819A CN 104808092 A CN104808092 A CN 104808092A
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Abstract
The invention discloses a detection system and method for electric energy quality influence factors. The detection system for the electric energy quality influence factors comprises a digital simulation device, a customized electric power device and a detection device, wherein the digital simulation device is used for obtaining a voltage disturbance simulation signal of a target power utilization system under pre-set voltage disturbance; the customized electric power device is used for managing electric energy quality of the detection system under the control of the voltage disturbance simulation signal; the detection device is connected with power utilization equipment and is used for detecting first operation data and second operation data respectively, and determining the electric energy quality influence factors according to the first operation data and the second operation data, wherein the first operation data is operation data of the power utilization equipment before electric energy quality management and the second operation data is operation data of the power utilization equipment after the electric energy quality management. With the adoption of the detection system for the electric energy quality influence factors, the problem that the electric energy quality influence factors cannot be accurately detected under a real power utilization background is solved.
Description
Technical field
The present invention relates to electric power network technique field, in particular to a kind of detection system and method for quality of power supply influence factor.
Background technology
The quality of power supply is the quality of electric energy in electric system, and in electric system, the deviation of voltage, electric current or frequency all likely causes consumer fault or cisco unity malfunction.Along with the development in city, cause the factor of power quality problem in continuous increase, putting into operation particularly with some nonlinear-loads, make the quality of power supply and power supply reliability be difficult to ensure.Especially for some sensitive loads or sensitive equipment, the quality of power supply is had higher requirement.Therefore, the detection affecting the quality of power supply influence factor that consumer runs just is seemed very important.
Detection at present for the quality of power supply generally completes in quality of power supply laboratory, realizes the detection of quality of power supply influence factor by manually setting the parameters such as the disturbance type of electrical energy power quality disturbance generating means and electric pressure.Which has often departed from real electricity consumption background, only expands theoretic research, and testing result accurately can not reflect the quality of power supply influence factor under real power system background.
For the problem that accurately cannot detect the quality of power supply influence factor under true electricity consumption background in correlation technique, at present effective solution is not yet proposed.
Summary of the invention
Fundamental purpose of the present invention is the detection system and the method that provide a kind of quality of power supply influence factor, to solve the problem of the quality of power supply influence factor that cannot accurately detect under true electricity consumption background.
To achieve these goals, according to an aspect of the present invention, a kind of detection system of quality of power supply influence factor is provided.
Detection system according to quality of power supply influence factor of the present invention comprises: Digital Simulation device, for obtaining the voltage disturbance simulate signal of target using electricity system under predeterminated voltage disturbance; Custom power device, for administering the quality of power supply of detection system under the control of voltage disturbance simulate signal; And pick-up unit, be connected to consumer, for detecting the first service data and the second service data respectively, with according to the first service data and the second service data determination quality of power supply influence factor, wherein, first service data be power quality controlling before the service data of consumer, the second service data be power quality controlling after the service data of consumer.
Further, this detection system also comprises: power transfer device, for generating power cut signal, wherein, power cut signal is the power supply being used to indicate detection system is switched to standby power supply signal by primary power cource, the phase differential of the output current of primary power cource and standby power supply is that preset phase is poor, wherein, pick-up unit to be used for detecting respectively before electrical source exchange data after data and electrical source exchange, to switch to the impact of standby power supply on the quality of power supply according to data determination power supply after data before electrical source exchange and electrical source exchange by primary power cource, before electrical source exchange, data are the service data of consumer before power cut signal generates, after electrical source exchange, data are the service data of consumer after power cut signal generates, first service data comprises data before electrical source exchange, second service data comprises data after electrical source exchange.
Further, this detection system also comprises: phase shifter, is that preset phase is poor for regulating the phase differential of the output current of primary power cource and standby power supply.
Further, custom power device comprises: voltage compensating device, for formation voltage compensating signal, wherein, voltage compensation signal is the signal that the input voltage for controlling consumer keeps constant, wherein, pick-up unit to be used for detecting respectively before voltage compensation data after data and voltage compensation, to determine the constant impact on the quality of power supply of input voltage keeping consumer according to data after data before voltage compensation and voltage compensation, before voltage compensation, data are the service data of consumer before voltage compensation signal generates, after voltage compensation, data are the service data of consumer after voltage compensation signal generates, first service data comprises data before voltage compensation, second service data comprises data after voltage compensation.
Further, voltage compensating device is dynamic electric voltage recovery device.
Further, custom power device comprises: reactive power compensator, for generating reactive-load compensation signal, wherein, reactive-load compensation signal is the signal for providing default reactive power to consumer, wherein, pick-up unit to be used for detecting respectively before reactive-load compensation data after data and reactive-load compensation, to determine according to data after data before reactive-load compensation and reactive-load compensation to provide default reactive power on the impact of the quality of power supply to consumer, before reactive-load compensation, data are the service data of consumer before reactive-load compensation signal generates, after reactive-load compensation, data are the service data of consumer after reactive-load compensation signal generates, first service data comprises data before reactive-load compensation, second service data comprises data after reactive-load compensation.
Further, reactive power compensator is STATCOM.
Further, custom power device comprises: filter, for generating filtering signal, wherein, filtering signal is the signal of the harmonic wave in filtering detection system, wherein, pick-up unit is for data and filtered data before difference detection filter, with according to filter wave front data and filtered data determination filtering detection system in harmonic wave on the impact of the quality of power supply, filter wave front data is the service data of consumer before filtering signal generates, filtered data is the service data of consumer after filtering signal generates, first service data comprises filter wave front data, second service data comprises filtered data.
Further, filter is Active Power Filter-APF.
To achieve these goals, according to a further aspect in the invention, a kind of detection method of quality of power supply influence factor is provided.
Detection method according to quality of power supply influence factor of the present invention comprises: obtain the voltage disturbance simulate signal of target using electricity system under predeterminated voltage disturbance; Administer the quality of power supply of detection system under the control of voltage disturbance simulate signal, wherein, detection system is the system for detecting quality of power supply influence factor; And detect the first service data and the second service data respectively, with according to the first service data and the second service data determination quality of power supply influence factor, wherein, first service data be power quality controlling before the service data of consumer, the second service data be power quality controlling after the service data of consumer.
By the present invention, adopt the system comprising following equipment: Digital Simulation device, for obtaining the voltage disturbance simulate signal of target using electricity system under predeterminated voltage disturbance, custom power device, for administering the quality of power supply of detection system under the control of voltage disturbance simulate signal, and pick-up unit, be connected to consumer, for detecting the first service data and the second service data respectively, with according to the first service data and the second service data determination quality of power supply influence factor, wherein, first service data be power quality controlling before the service data of consumer, second service data be power quality controlling after the service data of consumer, solve the problem of the quality of power supply influence factor that cannot accurately detect under true electricity consumption background, and then under the voltage disturbance simulate signal of the target using electricity system of Digital Simulation device output controls, the quality of power supply of custom power device to detection system is adopted to administer, consumer is detected before power quality controlling by pick-up unit, after service data, determine quality of power supply influence factor, reach the effect of the quality of power supply influence factor under the true electricity consumption background of accurate detection.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of the detection system of quality of power supply influence factor according to a first embodiment of the present invention;
Fig. 2 is the schematic diagram of the detection system of quality of power supply influence factor according to a second embodiment of the present invention; And
Fig. 3 is the process flow diagram of the detection method of quality of power supply influence factor according to the embodiment of the present invention.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
The application's scheme is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only the embodiment of the application's part, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the application's protection.
It should be noted that, term " first ", " second " etc. in the instructions of the application and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged, in the appropriate case so that the embodiment of the application described herein.In addition, term " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, such as, contain those steps or unit that the process of series of steps or unit, method, system, product or equipment is not necessarily limited to clearly list, but can comprise clearly do not list or for intrinsic other step of these processes, method, product or equipment or unit.
Below according to embodiments of the invention, provide a kind of detection system of quality of power supply influence factor.
Fig. 1 is the schematic diagram of the detection system of quality of power supply influence factor according to a first embodiment of the present invention.As shown in Figure 1, this detection system comprises: Digital Simulation device 10, custom power device 20 and pick-up unit 30.
Digital Simulation device 10, for obtaining the voltage disturbance simulate signal of target using electricity system under predeterminated voltage disturbance.
Particularly, Digital Simulation device 10 is for the voltage disturbance simulate signal of analog simulation target using electricity system under predeterminated voltage disturbance.Wherein, target using electricity system is real using electricity system, such as, and Beijing's electrical network, or the using electricity system of certain large enterprise.The present invention does not do concrete restriction to the scale of target using electricity system and the type of electricity consumption.Voltage disturbance simulate signal under predeterminated voltage disturbance is the voltage disturbance simulate signal produced under the voltage disturbance for target using electricity system, this voltage disturbance simulate signal is the voltage simulate signal under true electricity consumption background, therefore, it is possible to reflect real power utilization environment more exactly.
In this embodiment, Digital Simulation device 10 can comprise all-digital real-time simulation system of power system (ADPSS); Trend, short circuit, Stability Analysis Software (PSD/BPA); Electromagnetic transient analysis software (EMTP); System adequacy evaluation software (CYMDIST) etc.By above-mentioned Digital Simulation device 10, the emulation of electrical network scale to comprising multiple node, multiple stage generator, many circuits (or transformer) can be realized; Possess electrical network electromechanical transient, electro-magnetic transient, electromechanical transient-electromagnetic transient hybrid simulation function, support that external actual physics device carries out row closed loop detect, thus can support the detection system of the quality of power supply influence factor setting up reflection actual electric network background.
Custom power device 20, for administering the quality of power supply of detection system under the control of voltage disturbance simulate signal.
Particularly, custom power (customer power) device can as the device administered the quality of power supply of electric system.Custom power device 20 can be administered the quality of power supply of detection system under the control of voltage disturbance simulate signal, because this voltage disturbance simulate signal comes from real electricity consumption background, therefore under this signal controls the power quality controlling that carries out more close to true electricity consumption background under improvement situation to the quality of power supply.
Pick-up unit 30, be connected to consumer, for detecting the first service data and the second service data respectively, with according to the first service data and the second service data determination quality of power supply influence factor, wherein, first service data be power quality controlling before the service data of consumer, the second service data be power quality controlling after the service data of consumer.
Particularly, custom power device 20 and pick-up unit 30 are connected to consumer respectively, the improvement of the quality of power supply of custom power device 20 pairs of detection systems can cause the change of the running status of consumer, pick-up unit 30 can detect the service data of the consumer before power quality controlling and after administering, and judges whether the parameter that custom power device 20 regulates is quality of power supply influence factor according to testing result.Consumer can be sensitive load, namely when voltage change in power supply network or change suddenly cause the equipment of its cisco unity malfunction or function reduction.Such as, custom power device 20 can compensate the input voltage of consumer, to make the input voltage of consumer remain constant voltage values, compensates here namely represent that the quality of power supply to detection system is administered to the input voltage of consumer; The service data of the consumer before pick-up unit 30 can detect voltage compensation respectively and after voltage compensation, can judge whether compensate the input voltage of consumer is quality of power supply influence factor according to the service data of consumer before voltage compensation and after voltage compensation, such as, after voltage compensation, this consumer cannot normally run, then think that compensating the input voltage of consumer is a kind of quality of power supply influence factor.
According to the detection system of the quality of power supply influence factor of this embodiment owing to comprising: Digital Simulation device 10, for obtaining the voltage disturbance simulate signal of target using electricity system under predeterminated voltage disturbance, custom power device 20, for administering the quality of power supply of detection system under the control of voltage disturbance simulate signal, and pick-up unit 30, be connected to consumer, for detecting the first service data and the second service data respectively, with according to the first service data and the second service data determination quality of power supply influence factor, wherein, first service data be power quality controlling before the service data of consumer, second service data be power quality controlling after the service data of consumer, solve the problem of the quality of power supply influence factor that cannot accurately detect under true electricity consumption background, and then under the voltage disturbance simulate signal of the target using electricity system of Digital Simulation device 10 output controls, the quality of power supply of custom power device 20 pairs of detection systems is adopted to administer, consumer is detected before power quality controlling by pick-up unit 30, after service data, determine quality of power supply influence factor, reach the effect of the quality of power supply influence factor under the true electricity consumption background of accurate detection.
In an optional embodiment, this detection system can also comprise: power transfer device, for generating power cut signal, wherein, power cut signal is the power supply being used to indicate detection system is switched to standby power supply signal by primary power cource, the phase differential of the output current of primary power cource and standby power supply is that preset phase is poor, wherein, pick-up unit 30 is for detecting before electrical source exchange data after data and electrical source exchange respectively, to switch to the impact of standby power supply on the quality of power supply according to data determination power supply after data before electrical source exchange and electrical source exchange by primary power cource, before electrical source exchange, data are the service data of consumer before power cut signal generates, after electrical source exchange, data are the service data of consumer after power cut signal generates, first service data comprises data before electrical source exchange, second service data comprises data after electrical source exchange.
Particularly, power transfer device is the device that the power supply of detection system can be switched to standby power supply from primary power cource, and wherein, the phase differential of the output current of primary power cource and standby power supply is that preset phase is poor.By the running state data of consumer before detecting primary power cource and standby power supply and switching and after switching, can know that switching that output current possesses the power supply of phase differential affects situation for the quality of power supply.Such as, electronic equipment is gas-discharge lamp, the power supply of detection system switches to standby power supply from primary power cource, the phase differential of the output current of primary power cource and standby power supply is that preset phase is poor, gas-discharge lamp normal operation before switching, after switching, gas-discharge lamp cannot normally work, therefore, the quality of power supply that the power supply of known detection system switches to standby power system from primary power cource causes impact, namely output current possess phase differential primary, spare power supply between switching be a kind of quality of power supply influence factor.
In the above-described embodiments, power transfer device can be solid converting switch (Solid State Transfer Switch, referred to as SSTS).Primary, spare side power supply is connected to load respectively by thyristor, when normally working, load access master power work runs, and when system monitoring has Voltage Drop, overcurrent or excess temperature fault to primary power cource, load is switched to standby power supply by the solid converting switch of system automatically.
In the above-described embodiments, this detection system can also comprise: phase shifter, is that preset phase is poor for regulating the phase differential of the output current of primary power cource and standby power supply.Phase shifter can simulate the two-way power supply producing adjustable difference, is used for checking two-way power supply out of phase difference to the impact of power transfer device (such as, SSTS) switching time.
In an optional embodiment, custom power device 20 can comprise: voltage compensating device, for formation voltage compensating signal, wherein, voltage compensation signal is the signal that the input voltage for controlling consumer keeps constant, wherein, pick-up unit 30 is for detecting before voltage compensation data after data and voltage compensation respectively, to determine the constant impact on the quality of power supply of input voltage keeping consumer according to data after data before voltage compensation and voltage compensation, before voltage compensation, data are the service data of consumer before voltage compensation signal generates, after voltage compensation, data are the service data of consumer after voltage compensation signal generates, first service data comprises data before voltage compensation, second service data comprises data after voltage compensation.
Particularly, voltage compensating device is the device that can compensate to make the input voltage of consumer to keep constant to the input voltage of consumer, wherein, pick-up unit 30 for detecting the running status of the consumer before voltage compensation and after voltage compensation, to judge whether voltage compensation causes impact to the quality of power supply according to the running state data of consumer before voltage compensation and after voltage compensation.Such as, electronic equipment is gas-discharge lamp, before the input voltage of voltage compensating device to consumer compensates, pick-up unit 30 detects that gas-discharge lamp normally works, after the input voltage of voltage compensating device to consumer compensates, pick-up unit 30 detects gas-discharge lamp operation irregularity, therefore can know that compensating the input voltage of consumer in detection system is a kind of factor that can affect the quality of power supply of electric system.
In a kind of optional embodiment, voltage compensating device can be dynamic electric voltage recovery device (Dynamic VoltageRestorer, referred to as DVR).Synchronously to connect between current system and load three-phase alternating voltage, and control voltage amplitude and phase place, when system voltage occurs to fall temporarily, DVR device exports bucking voltage rapidly, ensure that consumer impression is fallen temporarily less than system voltage, guarantee the power supply quality to consumer.
In an optional embodiment, custom power device 20 can comprise: reactive power compensator, for generating reactive-load compensation signal, wherein, reactive-load compensation signal is the signal for providing default reactive power to consumer, wherein, pick-up unit 30 is for detecting before reactive-load compensation data after data and reactive-load compensation respectively, to determine according to data after data before reactive-load compensation and reactive-load compensation to provide default reactive power on the impact of the quality of power supply to consumer, before reactive-load compensation, data are the service data of consumer before reactive-load compensation signal generates, after reactive-load compensation, data are the service data of consumer after reactive-load compensation signal generates, first service data comprises data before reactive-load compensation, second service data comprises data after reactive-load compensation.
Reactive power compensator can provide default reactive power to consumer.By detecting the running state data of the consumer before and after providing default reactive power to consumer, can know to consumer and providing default reactive power whether to impact the quality of power supply.
In the above-described embodiments, reactive power compensator can be STATCOM (Static SynchronousCompensator, referred to as STATCOM).Three-phase bridge convertor circuit is installed in parallel in load-side (consumer side), then amplitude and the phase place of three-phase bridge circuit AC output voltage and electric current is regulated, this bridge circuit can be made to send or absorb the reactive current (reactive power) met the demands, finally reaching the object of dynamic passive compensation.
In an optional embodiment, custom power device 20 comprises: filter, for generating filtering signal, wherein, filtering signal is the signal of the harmonic wave in filtering detection system, wherein, pick-up unit 30 is for data and filtered data before difference detection filter, with according to filter wave front data and filtered data determination filtering detection system in harmonic wave on the impact of the quality of power supply, filter wave front data is the service data of consumer before filtering signal generates, filtered data is the service data of consumer after filtering signal generates, first service data comprises filter wave front data, second service data comprises filtered data.
Filter can harmonic wave in filtering detection system, by before checkout equipment detection filter with filtering after the service data of consumer, can know whether the harmonic wave in system is the factor affecting electric power quality.Alternatively, filter is Active Power Filter-APF (Active Power Filter, referred to as APF).Active Power Filter-APF detects load (consumer side) electric current by current transformer, and by internal digital signal processor (DigitalSignal Processing, referred to as DSP) calculate, extract the harmonic components in load current, then by pulse-length modulation (Pulse Width Modulation, referred to as PWM) signal sends to built-in electrical insulation grid bipolar transistor (Insulated Gate Bipolar Transistor, referred to as IGBT), control inverter produces one and load harmonic current equal and opposite in direction, the contrary harmonic current injection in direction is in electrical network, to reach the object of filtering.
In an optional embodiment, this detection system can also comprise: output interface device, for output disturbance voltage under the control of voltage disturbance simulate signal; And interconnect device, for connecting output interface device and custom power device 20, to export disturbance voltage to custom power device 20.
In the above-described embodiments, output interface device can be physics output interface device, and interconnect device is numeral simulation analysis and custom power platform interconnect device.By physics output interface device, the voltage simulate signal of user side can be converted into output voltage (disturbance voltage), by numeral simulation analysis and custom power platform interconnect device, voltage be inputed to custom power device 20 again.
Fig. 2 is the schematic diagram of the detection system of quality of power supply influence factor according to a second embodiment of the present invention.Fig. 2 can as a kind of preferred implementation embodiment illustrated in fig. 1.As shown in Figure 2, this detection system comprises: power system digital simulation cluster 01, physics output interface device 02, numeral simulation analysis and custom power platform interconnect device 03, phase shifter 04, solid converting switch 05, dynamic electric voltage recovery device 06, Distribution Static Compensator 07, sensitive load 08, sensitive load 09 and power supply 10.
It should be noted that, it (is primary power cource that the circuit at power system digital simulation cluster 01, physics output interface device 02, numeral simulation analysis and custom power platform interconnect device 03 and sensitive load 08 place possesses a power supply for energy supply, not shown in the drawings), power supply 10 is standby power supply.Sensitive load 08 can be control system, gas-discharge lamp, A.C. contactor, relay etc.The present invention does not limit the particular type of sensitive load.Sensitive load 08 is identical sensitive load with sensitive load 09.
Specifically, power system digital simulation cluster 01 is connected with custom power platform interconnect device 03 with numeral simulation analysis by physics output interface device 02, custom power platform interconnect device 03 can directly connect sensitive load 08, or be connected with sensitive load 09 by dynamic electric voltage recovery device 06, phase shifter 04 connects power supply 10, and be connected with solid converting switch 05, when phase shifter 04 and solid converting switch 05 place in circuit, the power supply of sensitive load 09 place circuit is power supply 10 (power supply of sensitive load 08 place circuit is primary power cource).Distribution Static Compensator 07 is connected with sensitive load 09, for providing default reactive power to sensitive load 09.Check point A, check point B, check point C place are connected to checkout equipment, for detecting the running state data of sensitive load 08 or sensitive load 09.Multiple switch is had in Fig. 2, when selecting different switch to close, the running state data of sensitive load 08 under distinct device ruuning situation and sensitive load 09 can be detected, by the contrast of the running state data of sensitive load 08 and sensitive load 09, the quality of power supply influence factor under true electricity consumption background can be known.
Here it should be noted that, in Fig. 1 embodiment, Digital Simulation device 10 can be realized by power system digital simulation cluster 01; Custom power device 20 can be realized by following any one or plurality of devices: dynamic electric voltage recovery device 06 and Distribution Static Compensator 07; In Fig. 2, check point A, check point B and check point C place are respectively arranged with checkout equipment (not shown in fig. 2), and in Fig. 1, pick-up unit 30 can be realized by above-mentioned checkout equipment.The effect of above-mentioned each equipment is illustrated in FIG, repeats no more here.
Such as, when the branch road conducting at power system digital simulation cluster 01, physics output interface device 02, numeral simulation analysis and custom power platform interconnect device 03, sensitive load 08 place, may be used for the running state data of the sensitive load 08 detected when not carrying out power quality controlling.Now, make the branch road conducting at power system digital simulation cluster 01, physics output interface device 02, numeral simulation analysis and custom power platform interconnect device 03, dynamic electric voltage recovery device 06 and sensitive load 09 place, the running state data of sensitive load 09 when making the input voltage of sensitive load 09 keep constant can be detected simultaneously.By comparing the running state data of sensitive load 08 in this situation and sensitive load 09, the constant impact on system power quality of input voltage keeping sensitive load can be known.It should be noted that, the data of the checkout equipment reading that the judgement of quality of power supply influence factor can be connected by each check point place are judged, also directly can observe the ruuning situation of sensitive load 08 and sensitive load 09.Such as, if sensitive load 08 and sensitive load 09 are the gas-discharge lamp of same model, then when directly can observe circuit turn-on, the light and shade change of two gas-discharge lamps, can make the judgement of simple, intuitive to quality of power supply influence factor based on this.
In this embodiment, power system digital simulation cluster 01 can voltage disturbance simulate signal under Reality simulation electricity consumption background, under the control of this voltage disturbance simulate signal, by the power quality controlling devices such as dynamic electric voltage recovery device 06 and Distribution Static Compensator 07 (or power transfer device of phase shifter 04 and solid converting switch 05 composition), the quality of power supply of system is administered, sensitive load 08 (before power quality controlling) is detected by checkout equipment, the service data of sensitive load 09 (after power quality controlling), determine quality of power supply influence factor, reach the effect of the quality of power supply influence factor under the true electricity consumption background of accurate detection.
This embodiment is by power system digital simulation cluster 01 and each custom power device (dynamic electric voltage recovery device 06, Distribution Static Compensator 07 etc.) combine and detect, electromagnetic transient simulation model can be built for target using electricity system, the batch facility of employing simulated program realizes the batch processing simulation to different electric pressure and different faults type, then, by physical unit interface arrangement, the voltage simulate signal of user side is converted into target voltage (as 380V) to be linked into custom power testing inspection platform and (to comprise phase shifter 04, solid converting switch 05, dynamic electric voltage recovery device 06, Distribution Static Compensator 07 etc.), carry out Digital Simulation-custom power and test interconnected research joint-detection, .Such as, voltage disturbance emulation can be carried out for Beijing Power Network, under voltage disturbance simulate signal controls, carry out the detection of quality of power supply influence factor, and then provide technical support for realizing responsible consumer " zero flashes ".
Below according to embodiments of the invention, provide a kind of detection method of quality of power supply influence factor.
It should be noted that, the detection method of the quality of power supply influence factor that the embodiment of the present invention provides can perform the detection system of quality of power supply influence factor provided by the invention, and the detection system of quality of power supply influence factor provided by the invention also may be used for the detection method performing the quality of power supply influence factor that the embodiment of the present invention provides.
Fig. 3 is the process flow diagram of the detection method of quality of power supply influence factor according to the embodiment of the present invention.As shown in Figure 3, the method comprises following step S101 to step S103.
Step S101, obtains the voltage disturbance simulate signal of target using electricity system under predeterminated voltage disturbance.
Above-mentioned steps S101 can be performed by the Digital Simulation device 10 shown in Fig. 1.
Step S102, administers the quality of power supply of detection system under the control of voltage disturbance simulate signal, and wherein, detection system is the system for detecting quality of power supply influence factor.
Above-mentioned steps S102 can be performed by the custom power device 20 shown in Fig. 1.
Step S103, detect the first service data and the second service data respectively, with according to the first service data and the second service data determination quality of power supply influence factor, wherein, first service data be power quality controlling before the service data of consumer, the second service data be power quality controlling after the service data of consumer.
Above-mentioned steps S103 can be performed by the pick-up unit 30 shown in Fig. 1.
According to the detection method of the quality of power supply influence factor of this embodiment owing to comprising: obtain the voltage disturbance simulate signal of target using electricity system under predeterminated voltage disturbance, administer the quality of power supply of detection system under the control of voltage disturbance simulate signal, wherein, detection system is the system for detecting quality of power supply influence factor, detect the first service data and the second service data respectively, with according to the first service data and the second service data determination quality of power supply influence factor, wherein, first service data be power quality controlling before the service data of consumer, second service data be power quality controlling after the service data of consumer, solve the problem of the quality of power supply influence factor that cannot accurately detect under true electricity consumption background, and then under the control of the voltage disturbance simulate signal of target using electricity system, the quality of power supply of detection system is administered, and detect the service data of consumer before power quality controlling and after administering, determine quality of power supply influence factor, reach the effect of the quality of power supply influence factor under the true electricity consumption background of accurate detection.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a detection system for quality of power supply influence factor, is characterized in that, comprising:
Digital Simulation device, for obtaining the voltage disturbance simulate signal of target using electricity system under predeterminated voltage disturbance;
Custom power device, for administering the quality of power supply of described detection system under the control of described voltage disturbance simulate signal; And
Pick-up unit, be connected to consumer, for detecting the first service data and the second service data respectively, with according to described first service data and described second service data determination quality of power supply influence factor, wherein, described first service data be power quality controlling before the service data of described consumer, described second service data be power quality controlling after the service data of described consumer.
2. detection system according to claim 1, is characterized in that, described detection system also comprises:
Power transfer device, for generating power cut signal, wherein, described power cut signal is the power supply being used to indicate described detection system is switched to standby power supply signal by primary power cource, the phase differential of the output current of described primary power cource and described standby power supply is that preset phase is poor
Wherein, described pick-up unit to be used for detecting respectively before electrical source exchange data after data and electrical source exchange, to switch to the impact of described standby power supply on the described quality of power supply according to data determination power supply after data before described electrical source exchange and described electrical source exchange by described primary power cource, before described electrical source exchange, data are the service data of described consumer before described power cut signal generates, after described electrical source exchange, data are the service data of described consumer after described power cut signal generates, described first service data comprises data before described electrical source exchange, described second service data comprises data after described electrical source exchange.
3. detection system according to claim 2, is characterized in that, described detection system also comprises:
Phase shifter is that described preset phase is poor for regulating the phase differential of the output current of described primary power cource and described standby power supply.
4. detection system according to claim 1, is characterized in that, described custom power device comprises:
Voltage compensating device, for formation voltage compensating signal, wherein, described voltage compensation signal is the signal that the input voltage for controlling described consumer keeps constant,
Wherein, described pick-up unit to be used for detecting respectively before voltage compensation data after data and voltage compensation, to determine to keep the constant impact on the described quality of power supply of the input voltage of described consumer according to data after data before described voltage compensation and described voltage compensation, before described voltage compensation, data are the service data of described consumer before described voltage compensation signal generates, after described voltage compensation, data are the service data of described consumer after described voltage compensation signal generates, described first service data comprises data before described voltage compensation, described second service data comprises data after described voltage compensation.
5. detection system according to claim 4, is characterized in that, described voltage compensating device is dynamic electric voltage recovery device.
6. detection system according to claim 1, is characterized in that, described custom power device comprises:
Reactive power compensator, for generating reactive-load compensation signal, wherein, described reactive-load compensation signal is the signal for providing default reactive power to described consumer,
Wherein, described pick-up unit to be used for detecting respectively before reactive-load compensation data after data and reactive-load compensation, to determine according to data after data before described reactive-load compensation and described reactive-load compensation to provide described default reactive power on the impact of the described quality of power supply to described consumer, before described reactive-load compensation, data are the service data of described consumer before described reactive-load compensation signal generates, after described reactive-load compensation, data are the service data of described consumer after described reactive-load compensation signal generates, described first service data comprises data before described reactive-load compensation, described second service data comprises data after described reactive-load compensation.
7. detection system according to claim 6, is characterized in that, described reactive power compensator is STATCOM.
8. detection system according to claim 1, is characterized in that, described custom power device comprises:
Filter, for generating filtering signal, wherein, described filtering signal is the signal of the harmonic wave in detection system described in filtering,
Wherein, described pick-up unit is for data and filtered data before difference detection filter, with the harmonic wave in detection system according to described filter wave front data and described filtered data determination filtering on the impact of the described quality of power supply, described filter wave front data is the service data of described consumer before described filtering signal generates, described filtered data is the service data of described consumer after described filtering signal generates, described first service data comprises described filter wave front data, and described second service data comprises described filtered data.
9. detection system according to claim 8, is characterized in that, described filter is Active Power Filter-APF.
10. a detection method for quality of power supply influence factor, is characterized in that, comprising:
Obtain the voltage disturbance simulate signal of target using electricity system under predeterminated voltage disturbance;
Administer the quality of power supply of detection system under the control of described voltage disturbance simulate signal, wherein, described detection system is the system for detecting quality of power supply influence factor; And
Detect the first service data and the second service data respectively, to determine described quality of power supply influence factor according to described first service data and described second service data, wherein, described first service data be power quality controlling before the service data of consumer, described second service data be power quality controlling after the service data of described consumer.
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