CN104764951B - A kind of detection platform and detection method of the APF of 380V voltage class - Google Patents

A kind of detection platform and detection method of the APF of 380V voltage class Download PDF

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Publication number
CN104764951B
CN104764951B CN201510113080.6A CN201510113080A CN104764951B CN 104764951 B CN104764951 B CN 104764951B CN 201510113080 A CN201510113080 A CN 201510113080A CN 104764951 B CN104764951 B CN 104764951B
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voltage
apf
master
tested
harmonic
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CN104764951A (en
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张博
石光
杨泽州
李尚盛
朱明丽
刘书铭
孙建军
查晓明
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State Grid Corp of China SGCC
Wuhan University WHU
Electric Power Research Institute of State Grid Henan Electric Power Co Ltd
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State Grid Corp of China SGCC
Wuhan University WHU
Electric Power Research Institute of State Grid Henan Electric Power Co Ltd
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Abstract

The invention discloses the detection platforms and detection method of a kind of APF of 380V voltage class, including detection circuit, tunable load, detecting instrument, test bus, signal collection bus and master system, the present invention controls the switch state of the high-voltage circuitbreaker and high voltage connector in detection circuit using master system, controlling voltage disturbance generating apparatus exports different disturbance voltages simultaneously, also control tunable load is idle works with harmonic oscillator device in idle output or harmonic wave state, the output of tested APF product is observed by detecting instrument to analyze the performance of tested APF product;For detection platform of the invention based on the power electronic devices of modularization series-connected structure, structure is simple, and control is flexible;Secondly, detection method of the invention has comprehensively considered all operating conditions of APF, the adaptability and compensation effect of subject APF fully tested, so that testing result is comprehensively credible.

Description

A kind of detection platform and detection method of the APF of 380V voltage class
Technical field
The present invention relates to power equipment performance test field more particularly to a kind of detection of the APF of 380V voltage class are flat Platform and detection method.
Background technique
As the rapid development and design of modern industry need, the non-linear and impact load in power grid increasingly increases More, this, which just brings to power quality, significantly influences, meanwhile, also the reliability and stability of power supply is proposed more next More stern challenge.Since flexible AC transmitting system (FACTS) has excellent performance and not in terms of improving power quality Analogous advantage, is widely applied so FACTS is also received in power grid, and as the core equipment of FACTS it Once --- APF(Active Power Filter-APF) detection and application be particularly important.It is well known that the instantaneous nothing of three-phase circuit Function Power Theory is the main theoretical basis of APF development, and APF has parallel connection type and two kinds of tandem type, APF primary abatement electric current in parallel The problem of harmonic wave, series connection APF primary abatement voltage harmonic etc. causes.APF compares with passive filter, and regulation effect is good, mainly Because APF can filter out multiple and higher hamonic wave simultaneously, resonance will not be caused, price is relatively high.But it is directed to due to existing The performance detection specification of APF is perfect not enough, and detection means is comprehensive not enough, can not restore the power quality ring of actual field Border, so APF there is also various unforeseen problems in actual operation.Therefore, it is necessary to develop for APF The detection device of equal general types power quality controlling equipment includes power grid transient state, specific load etc. in electric system to simulate Various power quality problems restore a more true actual field environment.
Summary of the invention
The object of the present invention is to provide the detection platforms and detection method of a kind of APF of 380V voltage class, to solve to pass The APF performance detection specification of system is perfect not enough, and detection means is comprehensive not enough, can not restore the power quality in actual field The problem of environment.
The present invention adopts the following technical solutions:
A kind of detection platform of the APF of 380V voltage class, including detection circuit, tunable load, detecting instrument, test mother Line, signal collection bus and master system;
The detection circuit is used to provide voltage disturbance for tested APF product, and detection circuit includes 10kV power grid, open circuit Device device, voltage disturbance generating apparatus, output communication means and downconverter device, the release unit, voltage It disturbs generating apparatus and downconverter device constitutes controllable voltage source system;Wherein,
The 10kV power grid is used to provide voltage signal for detection platform;
The release unit is used for the isolation and protection of inlet wire major loop;
The voltage disturbance generating apparatus under the control of master system for generating different voltage dips, wave Dynamic and unbalance voltage signal, to interfere tested APF device;
The output communication means is used to voltage disturbance generating apparatus and test bus carrying out electrical isolation;
The downconverter device is used to adjust the detection voltage of detection circuit;
The tunable load using idle and harmonic oscillator device, sent out by adjusting idle and harmonic wave by master system The output mode of raw device device makes the output signal of tested APF product change, and is to be tested the output signal of APF product According to come the performance that judges test product;
The detecting instrument includes high-precision power analyzer, wave tracer, insulation pressure tester and infrared temperature Tester is spent, the high-precision power analyzer is used to detect the power of tested APF output of products, the wave tracer For detecting the voltage and current signals of tested APF output of products, the insulation pressure tester is produced for detecting tested APF The insulation resistance energy of product, the infrared temperature tester are used to detect the heat resistance of tested APF product;
The test bus is for connection detection circuit, tested APF product and tunable load;
The signal collection bus is used to summarize the release unit, inlet wire communication means, voltage disturbance and occurs Device device, output communication means, downconverter device and idle and input and output signal and voltage of harmonic oscillator device And current sampling signal;
The master system includes control cabinet device, on the spot industrial personal computer and long-range industrial personal computer, the control cabinet dress It sets and controls voltage disturbance generating apparatus and idle and harmonic oscillator device work for sending pwm signal by secondary cable Make, is also used to control the high-voltage circuitbreaker, inlet wire communication means, voltage disturbance generator dress by input and output signal It sets, downconverter device and idle with harmonic oscillator device switch state;
The 10kV power grid is electrically connected with the input terminal of high-voltage circuitbreaker, the output end and voltage disturbance of high-voltage circuitbreaker The input terminal of generating apparatus is electrically connected, and the input terminal of the output end and output communication means of voltage disturbance generating apparatus is electrically connected It connects, the output end for exporting communication means is electrically connected with the input terminal of downconverter device, the output end of downconverter device It is electrically connected with test bus, idle to be electrically connected with the output end of harmonic oscillator device with test bus, high-voltage circuitbreaker, voltage Disturbance generating apparatus, output communication means, downconverter device and idle and harmonic oscillator device pass through secondary line Cable and the communication connection of signal collection bus, signal collection bus are communicated to connect by secondary cable and control device, control device It is communicated to connect by R422 and industrial personal computer on the spot, industrial personal computer is communicated to connect by router and long-range industrial personal computer on the spot, described High-precision power analyzer, wave tracer, insulation pressure tester and infrared temperature tester are defeated with tested APF product Outlet electrical connection.
The release unit is made of high-voltage circuitbreaker, and the first end of high-voltage circuitbreaker is electrically connected with 10kV power grid, The second end of high-voltage circuitbreaker is electrically connected with the input terminal of voltage disturbance generating apparatus.
The voltage disturbance generating apparatus is internally provided with voltage disturbance generator, the voltage disturbance generator It is made of input transformer, disturbance generator and filter circuit, the input transformer is single-phase multiwinding transformer, secondary side It is exported using Multiple coil, each vice-side winding is electrically connected with a back-to-back power cell, and the disturbance generator is by multiple Back-to-back power cell is cascaded into hub-and-spoke configuration in inverter side, and the filter circuit is made of first resistor, inductance and capacitor, First resistor, inductance and capacitor series connection, first resistor and capacitor both ends are provided with by-pass switch.
The output communication means is made of the first high voltage connector, and first end and the voltage of the first high voltage connector are disturbed The output end electrical connection of dynamic generating apparatus, the second end of the first high voltage connector and the input terminal of downconverter device are electrically connected It connects.
The downconverter device is made of step-down transformer, the primary coil first end and output of step-down transformer The output end of communication means is electrically connected, the second end ground connection of the primary coil of step-down transformer, the secondary coil of step-down transformer First end is electrically connected with test bus, the second end ground connection of the secondary coil of step-down transformer.
The idle and harmonic oscillator device includes idle and harmonic oscillator and starting-up later time, and the starting is returned Road module is made of the second high voltage connector, third high voltage connector and second resistance, the third high-voltage circuitbreaker first End is electrically connected with test bus, and the second end of the third high-voltage circuitbreaker is electrically connected with idle with harmonic oscillator, described The second high voltage connector and second resistance series connection after be connected in parallel on third high voltage connector both ends.
The detection method of the APF of 380V voltage class is carried out using the detection platform of the APF of the 380V voltage class, The following steps are included:
Step 1: the grid-connected ability of the APF of 380V voltage class is detected, following five steps are divided into:
A: being issued the instruction of closed high breaker and the first high voltage connector by master system, is built on test bus The standard rated voltage of vertical 380V, by wave tracer observe tested APF product whether chaser, and judge tested APF product Whether grid-connected ability in normal conditions complies with standard, and is then controlled by master system and disconnects high-voltage circuitbreaker QF1 and the One high voltage connector KM1, enters step B;
B: the instruction of closed high breaker and the first high voltage connector is issued by master system, while by host computer system It is 2%-100% that system control voltage disturbance generating apparatus, which exports temporary range of decrease degree, and the temporary drop voltage that step-length is 2% passes through waveform recording Instrument observe tested APF product whether chaser, and analyze whether grid-connected ability of the tested APF product under temporarily drop voltage disturbance meets Then standard is controlled by master system and disconnects high-voltage circuitbreaker and the first high voltage connector, enters step C;
C: the instruction of closed high breaker and the first high voltage connector is issued by master system, while by host computer It is 2%-50% that system, which controls voltage disturbance generating apparatus output pulsation amplitude, and the temporary drop voltage that step-length is 2% is remembered by waveform Record instrument observe tested APF product whether chaser, and judge whether grid-connected ability of the tested APF product under fluctuation voltage disturbance accords with Then standardization is controlled by master system and disconnects high-voltage circuitbreaker and the first high voltage connector, enters step D;
D: the instruction of closed high breaker and the first high voltage connector is issued by master system, while by host computer It is 1Hz that system, which controls voltage disturbance generating apparatus output step-length, and frequency range is 45 Hz -55 Hz voltages, is remembered by waveform Record instrument observe tested APF product whether chaser, and judge that tested grid-connected ability of the APF product under different frequency voltage disturbance is It is no to comply with standard, it is then controlled by master system and disconnects high-voltage circuitbreaker and the first high voltage connector, enter step E;
E: the instruction of closed high breaker and the first high voltage connector is issued by master system, while by host computer system System control voltage disturbance generating apparatus output degree of unbalancedness range is 0-100%, and the voltage that step-length is 2% passes through waveform recording Instrument observe tested APF product whether chaser, and judge whether grid-connected ability of the tested APF product under unbalance voltage disturbance accords with Then standardization is controlled by master system and disconnects high-voltage circuitbreaker and the first high voltage connector, enters step two;
Step 2: it is high to issue closure by master system for the detection to the voltage range of operation of the APF of 380V voltage class The instruction of voltage breaker and the first high voltage connector, while voltage disturbance generating apparatus output size is controlled by master system For 300V-460V, step-length is the voltage of 20V, by wave tracer observe tested APF product whether chaser, and judge tested Whether the voltage range of operation of APF product complies with standard, then high by master system control disconnection high-voltage circuitbreaker and first Tentaculum is crimped, enters step three;
Step 3: to the harmonic compensation performance detection of the APF of 380V voltage class, closed high is controlled by master system Breaker, the first high voltage connector and third high voltage connector, after idle and harmonic oscillator device normally starts, then by upper Position machine system first controls the second high voltage connector of closure, is then turned off third high voltage connector, controls voltage by master system Disturbance generating apparatus works in the rated operational voltage of 380V, while controlling the work of idle and harmonic oscillator device in harmonic wave Output state simultaneously successively issues fundamental wave 50 times single harmonic component and fundamental wave 50 times multiple harmonic combinations below below, passes through waveform Recorder judges whether the harmonic compensation ability of tested APF product complies with standard, and is finally controlled by master system and disconnects high pressure Breaker, the first high voltage connector and the second high voltage connector, enter step four;
Step 4: to the harmonic compensation performance detection under the voltage disturbance of the APF of 380V voltage class, it is divided into following four Step:
A: by master system control closed high breaker, the first high voltage connector and third high voltage connector, to nothing After function and harmonic oscillator device normally start, then the second high voltage connector of closure is first controlled by master system, be then turned off Third high voltage connector, while exporting temporary range of decrease degree by master system control voltage disturbance generating apparatus is 2%-100%, step A length of 2% temporary drop voltage, and by master system control the idle work with harmonic oscillator device harmonic wave state simultaneously Fundamental wave 50 times single harmonic component and fundamental wave 50 times multiple harmonic combinations below below are successively issued, are judged by wave tracer Whether the harmonic compensation ability under temporarily drop voltage disturbance of tested APF product complies with standard, and is finally controlled by master system disconnected High-voltage circuitbreaker, the first high voltage connector and the second high voltage connector are opened, b is entered step;
B: by master system control closed high breaker, the first high voltage connector and third high voltage connector, to nothing After function and harmonic oscillator device normally start, then the second high voltage connector of closure is first controlled by master system, be then turned off Third high voltage connector, while being 2%-50%, step by master system control voltage disturbance generating apparatus output pulsation amplitude A length of 2% temporary drop voltage, and by master system control the idle work with harmonic oscillator device harmonic wave state simultaneously Fundamental wave 50 times single harmonic component and fundamental wave 50 times multiple harmonic combinations below below are successively issued, are judged by wave tracer Whether the harmonic compensation ability under fluctuation voltage disturbance of tested APF product complies with standard, and is finally controlled by master system disconnected High-voltage circuitbreaker, the first high voltage connector and the second high voltage connector are opened, c is entered step;
C: by master system control closed high breaker, the first high voltage connector and third high voltage connector, to nothing After function and harmonic oscillator device normally start, then the second high voltage connector of closure is first controlled by master system, be then turned off Third high voltage connector, while being 1Hz by master system control voltage disturbance generating apparatus output step-length, frequency range is 45 Hz -55 Hz voltages, and by master system control the idle work with harmonic oscillator device harmonic wave state simultaneously Fundamental wave 50 times single harmonic component and fundamental wave 50 times multiple harmonic combinations below below are successively issued, are judged by wave tracer Whether the harmonic compensation ability under different voltages frequency disturbance of tested APF product complies with standard, finally by master system control System disconnects high-voltage circuitbreaker, the first high voltage connector and the second high voltage connector, enters step d;
D: by master system control closed high breaker, the first high voltage connector and third high voltage connector, to nothing After function and harmonic oscillator device normally start, then the second high voltage connector of closure is first controlled by master system, be then turned off Third high voltage connector, while being 0-by master system control voltage disturbance generating apparatus output degree of unbalancedness range 100%, the voltage that step-length is 2%, and the work of idle and harmonic oscillator device is controlled in harmonic wave shape by master system State simultaneously successively issues fundamental wave 50 times single harmonic component and fundamental wave 50 times multiple harmonic combinations below below, passes through wave tracer Judge whether the harmonic compensation ability under imbalance disturbance of tested APF product complies with standard, is finally controlled by master system Disconnect high-voltage circuitbreaker, the first high voltage connector and the second high voltage connector.
Compared with prior art, the present invention has the following advantages and beneficial effects:
Firstly, detection platform of the invention is based on the power electronic devices of modularization series-connected structure, structure is simple, Control flexible, fast response time;Secondly, detection platform of the invention cutting by switches such as high-voltage circuitbreaker and high voltage connectors The random combine that arbitrary patterns may be implemented is changed, while can also really simulate live voltage and current disturbing operating condition, is had The characteristics of flexible operation, test is comprehensive, precise and high efficiency;Again, detection method of the invention has comprehensively considered all operation works of APF Condition fully tested the adaptability and compensation effect of subject APF, so that testing result is more comprehensively credible.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the APF detection platform of 380V voltage class of the present invention.
Specific embodiment
As shown in Figure 1, the present invention provides a kind of APF detection platform of 380V voltage class, including detection circuit, adjustable negative Load, detecting instrument, test bus, signal collection bus and master system;The detection circuit includes 380V power grid, open circuit Device device, electrical energy power quality disturbance generating apparatus, output communication means and downconverter device;The tunable load is nothing Function and harmonic oscillator device;The detecting instrument includes high-precision power analyzer, wave tracer, insulation voltage-withstand test Instrument and infrared temperature tester, the high-precision power analyzer is used to detect the power of tested APF output of products, described Wave tracer is used to detect the voltage and current signals of tested APF output of products, and the insulation pressure tester is for examining The insulation resistance energy of tested APF product is surveyed, the infrared temperature tester is used to detect the heat resistance of tested APF product; The master system includes control device, on the spot industrial computer A and long-range industrial computer B, and the control device includes master control Device and signal regulating panel processed.
The release unit is made of high-voltage circuitbreaker, first end and 10kV the power grid electricity of the high-voltage circuitbreaker Connection, the second end of the high-voltage circuitbreaker are electrically connected with the input terminal of voltage disturbance generating apparatus;The breaker Device is used for the isolation and protection of inlet wire major loop;
The electrical energy power quality disturbance generating apparatus is internally provided with electrical energy power quality disturbance generator, the electric energy matter Amount disturbance generator by input transformer, disturbance generator and filter circuit constitute, the input transformer be it is single-phase mostly around The primary side of group transformer and input transformer can connect into star-like or triangle, and single-phase multiwinding transformer can be by 10kV's System voltage is reduced to rated value, can also provide input voltage for back-to-back power cell, while can also play electrically Buffer action.Secondary side is exported using Multiple coil, and each vice-side winding is electrically connected with a back-to-back power cell, the disturbance Generator is cascaded into hub-and-spoke configuration in inverter side by multiple back-to-back power cells, and this makes it possible to effectively improve device output Equivalent switching frequency, so that accurately control output higher hamonic wave, generates the voltage and current disturbing of given instruction.Described Filter circuit is made of first resistor R0, the first inductance L and capacitor C, first resistor R0, capacitor C and the first inductance L series connection, the The series loop both ends of one resistance R0 and capacitor C are provided with by-pass switch K, and filter circuit can effectively eliminate high order ripple Interference, can play the role of smoothly exporting;The use of the electrical energy power quality disturbance generating apparatus, can really simulate There is the disturbance situation of field voltage and electric current, keep the performance test results of tested APF product more accurate, at the same also simplify by Survey the step of measuring performance of APF product;
The output communication means is made of the first high voltage connector KM1, the first end of the first high voltage connector KM1 with The output end of voltage disturbance generating apparatus is electrically connected, the second end of the first high voltage connector KM1 and downconverter device Input terminal electrical connection, output communication means is used for and downconverter device together fills the electrical energy power quality disturbance generator It sets and carries out electrical isolation with the test bus, if because the voltage signal of 10kV power grid input is not isolated, it will straight It connects overvoltage disturbance generating apparatus to connect with test bus, this be not allowed to electrically;
The downconverter device is made of step-down transformer, and the step-down transformer is used for the 10kV The voltage signal decompression of power grid input, is then transferred to test bus for the suitable voltage signal after decompression, for test platform It uses;
With harmonic wave module and starting-up later time module composition occur for the idle and harmonic oscillator device by idle, described Starting-up later time module be made of the second high voltage connector KM2, third high voltage connector KM3 and second resistance R1, described Three high voltage connector KM3 first ends with test bus be electrically connected, the second end of the third high voltage connector KM3 and it is idle and Module electrical connection occurs for harmonic wave, is connected in parallel on third high-voltage connecting after the second high voltage connector KM2 and second resistance R1 series connection The both ends tentaculum KM3;Biggish starting voltage is needed on startup with harmonic oscillator device due to idle, so normally starting nothing Necessary line is closed third high voltage connector KM3 when function and harmonic oscillator device, after the idle starting with harmonic oscillator device, It is being closed the second high voltage connector KM2, is making second resistance R1(divider resistance) access starting-up later time, second resistance R1(partial pressure electricity Resistance) it can play the role of protecting idle and harmonic oscillator, simultaneously switch off third high voltage connector KM3;It is well known that right When the performance of tested APF product is detected, the reactive compensation performance and harmonic wave compensation performance for being tested APF product are all critically important Testing index, and use idle and the tunable load of the harmonic oscillator device as detection platform, first load be It is adjustable, and can also have idle output and harmonic wave both of which, in the property for being tested APF product using this platform measuring Very easily it can need to make the output mode of the idle and harmonic oscillator device idle according to measurement when energy It is converted between harmonic wave, very easily meets the needs of measurement again while simplifying detection platform structure, and to the greatest extent may be used Energy really reduces field electric energy environment, keeps the result of measurement more accurate.
The 10kV power grid is electrically connected with the input terminal of release unit, the output end and voltage disturbance of high-voltage circuitbreaker The input terminal of generating apparatus is electrically connected, and the input terminal of the output end and output communication means of voltage disturbance generating apparatus is electrically connected It connects, the output end for exporting communication means is electrically connected with the input terminal of downconverter device, the output end of downconverter device It is electrically connected with test bus, the input terminal of the detecting instrument is connect with the output end of tested APF product, idle and harmonic wave The output end of generating apparatus is electrically connected with test bus, release unit, voltage disturbance generating apparatus, output communication means Pass through secondary cable and the communication connection of signal collection bus with harmonic oscillator device with idle, signal collection bus passes through two Secondary cable and control device communicate to connect, and control device is by R422 and industrial computer A communication connection on the spot, and industrial computer A is logical on the spot The TPC/IP agreement and long-range industrial computer B for crossing router communicate to connect.
In a kind of APF detection platform work of 380V voltage class, due to the release unit, electric energy Quality disturbance generating apparatus, output communication means and idle pass through secondary cable with harmonic oscillator device and signal collects Bus communicates to connect, and signal collection bus is communicated to connect by secondary cable and control device, and control device is by R422 and just Ground industrial computer A communication connection, industrial computer A and long-range industrial computer B communicate to connect on the spot, so detecting quilt using the detection platform When surveying the performance of APF product, the staff at background work station can send work order to industrial computer A by industrial computer B, again Since industrial computer A and control device are by R422 communication connection, so the work order (input and output signal) that industrial computer A receives Can be for transmission in the master controller in control device, master controller passes through optical-fibre communications for control instruction (input and output signal) It is transferred to signal collection bus, signal collection bus is electrically connected by secondary cable control with signal collection bus bus disconnected again Road device device, output communication means and idle high-voltage circuitbreaker and high voltage connector with harmonic oscillator device act, with Execute the control instruction that the industrial computer B at background work station issues;Meanwhile according to detection needs, industrial computer B by industrial computer A to The instruction of the change voltage and current of the master controller transmission of control device is main after master controller and the processing of signal condition version Controller will provide pwm signal, and the pwm signal will be transferred to power quality by signal collection bus and secondary cable Electrical energy power quality disturbance generating apparatus and idle and harmonic wave occur for disturbance generating apparatus and idle and harmonic oscillator device Device device action, the voltage and current signals that output order provides.It (carries out High-Voltage Electrical Appliances automation control using industrial personal computer to belong to Existing conventional techniques have been widely used for High-Voltage Electrical Appliances detection and monitoring field).
The present invention is due to using modular unit, so structure is simple, is installed and maintained conveniently and quickly;The present invention also utilizes Electrical energy power quality disturbance generating apparatus, electrical energy power quality disturbance generating apparatus, can under the control of industrial personal computer and control device Easily to export different types of voltage and current signals, true field electric energy quality environment is simulated as far as possible, makes institute A kind of testing result of the APF detection platform for the 380V voltage class stated is more accurate;The present invention also uses idle and harmonic wave Tunable load of the generating apparatus as a kind of APF detection platform of 380V voltage class, idle and harmonic oscillator Device is under the control of industrial personal computer and control device, it may be convenient to the output mode conversion of idle and different subharmonic is carried out, This can really simulate field load, make a kind of testing result of the APF detection platform of 380V voltage class more Add accurate;Detection platform of the invention may be implemented arbitrarily by the switching of the switches such as high-voltage circuitbreaker and high voltage connector again The random combine of mode, while live voltage and current disturbing operating condition can also be really simulated, there is flexible operation, test is complete The characteristics of face, precise and high efficiency.
The present invention provides a kind of APF detection method of 380V voltage class, it the following steps are included:
Step 1: the grid-connected ability of the APF of 380V voltage class is detected, following five steps are divided into:
A: being issued the instruction of closed high circuit breaker Q F1 and the first high voltage connector KM1 by master system, female in test The standard rated voltage that 380V is established on line, since detection voltage is that 10kV power grid provides, so what 10kV power grid provided 10kV voltage is changing to the standard rated voltage of 380V when passing through downconverter device, and voltage disturbance generating apparatus is only Outputting standard voltage, and without disturbance, by wave tracer observe tested APF product whether chaser, and analyze tested APF The grid-connected ability of product in normal conditions, avoid in this way voltage disturbance to the tested APF product under regular situation and The influence of net ability keeps the tested grid-connected ability testing result of APF product in normal conditions more accurate, finally by host computer System control disconnects high-voltage circuitbreaker QF1 and the first high voltage connector KM1, into next step;
B: the instruction of closed high circuit breaker Q F1 and the first high voltage connector KM1 are issued by master system, while by upper It is 2%-100% that position machine system control voltage disturbance generating apparatus, which exports temporary range of decrease degree, and the temporary drop voltage that step-length is 2% passes through wave Shape recorder observe tested APF product whether chaser, and analyze grid-connected ability of the tested APF product under temporarily drop voltage disturbance, Then it is controlled by master system and disconnects high-voltage circuitbreaker QF1 and the first high voltage connector KM1, into next step;
C: by the instruction of master system sending closed high circuit breaker Q F1 and the first high voltage connector KM1, while by It is 2%-50% that master system, which controls voltage disturbance generating apparatus output pulsation amplitude, and the temporary drop voltage that step-length is 2% passes through Wave tracer observe tested APF product whether chaser, and analyze grid-connected energy of the tested APF product under fluctuation voltage disturbance Power illustrates the grid-connected ability being tested APF product under fluctuation voltage disturbance and does not meet mark if tested APF product chaser Standard illustrates that grid-connected ability of the tested APF product under fluctuation voltage disturbance meets mark if tested APF product does not have chaser Then standard is controlled by master system and disconnects high-voltage circuitbreaker QF1 and the first high voltage connector KM1, into next step;
D: by the instruction of master system sending closed high circuit breaker Q F1 and the first high voltage connector KM1, while by It is 1Hz that master system, which controls voltage disturbance generating apparatus output step-length, and frequency range is 45 Hz -55 Hz voltages, is passed through Wave tracer observe tested APF product whether chaser, and it is grid-connected under different frequency voltage disturbance to analyze tested APF product Then ability is controlled by master system and disconnects high-voltage circuitbreaker QF1 and the first high voltage connector KM1, into next step;
E: the instruction of closed high circuit breaker Q F1 and the first high voltage connector KM1 are issued by master system, while by upper Position machine system control voltage disturbance generating apparatus output degree of unbalancedness range is 0-100%, and the voltage that step-length is 2% passes through wave Shape recorder observe tested APF product whether chaser, and analyze grid-connected energy of the tested APF product under unbalance voltage disturbance Then power is controlled by master system and disconnects high-voltage circuitbreaker QF1 and the first high voltage connector KM1, into next step;
Step 2: it is high to issue closure by master system for the detection to the voltage range of operation of the APF of 380V voltage class The instruction of voltage breaker QF1 and the first high voltage connector KM1, at the same it is defeated by master system control voltage disturbance generating apparatus Size is 300V-460V out, and step-length is the voltage of 20V, by wave tracer observe tested APF product whether chaser, and point The voltage range of operation for analysing tested APF product, is then controlled by master system and disconnects high-voltage circuitbreaker QF1 and the first high-voltage connecting Tentaculum KM1, into next step;
Step 3: to the harmonic compensation performance detection of the APF of 380V voltage class, closed high is controlled by master system Circuit breaker Q F1, the first high voltage connector KM1 and third high voltage connector KM3 normally start to idle with harmonic oscillator device Afterwards, then by master system the second high voltage connector KM2 of closure is first controlled, third high voltage connector KM3 is then turned off, by upper Machine system control voltage disturbance generating apparatus works in the rated operational voltage of 380V, while controlling idle and harmonic oscillator Device work in harmonic wave state and successively issue fundamental wave 50 times single harmonic component and fundamental wave 50 times below it is below multiple humorous The harmonic compensation ability of tested APF product is analyzed in wave combination by wave tracer, and it is high finally to control disconnection by master system Voltage breaker QF1, the first high voltage connector KM1 and the second high voltage connector KM2;
Step 4: to the harmonic compensation performance detection under the voltage disturbance of the APF of 380V voltage class, it is divided into following four Step:
A: it is contacted by master system control closed high circuit breaker Q F1, the first high voltage connector KM1 and third high pressure Device KM3 after idle and harmonic oscillator device normally starts, then is first controlled the second high voltage connector of closure by master system KM2 is then turned off third high voltage connector KM3, while temporarily being dropped by master system control voltage disturbance generating apparatus output Amplitude is 2%-100%, the temporary drop voltage that step-length is 2%, and is controlled and idle worked with harmonic oscillator device by master system It in harmonic wave state and successively issues fundamental wave 50 times single harmonic component and fundamental wave 50 times multiple harmonics below below to combine, lead to The harmonic compensation ability under temporarily drop voltage disturbance that wave tracer analyzes tested APF product is crossed, finally by master system control System disconnects high-voltage circuitbreaker QF1, the first high voltage connector KM1 and the second high voltage connector KM2;
B: it is contacted by master system control closed high circuit breaker Q F1, the first high voltage connector KM1 and third high pressure Device KM3 after idle and harmonic oscillator device normally starts, then is first controlled the second high voltage connector of closure by master system KM2 is then turned off third high voltage connector KM3, while controlling the output pulsation of voltage disturbance generating apparatus by master system Amplitude is 2%-50%, the temporary drop voltage that step-length is 2%, and is controlled and idle worked with harmonic oscillator device by master system It in harmonic wave state and successively issues fundamental wave 50 times single harmonic component and fundamental wave 50 times multiple harmonics below below to combine, lead to The harmonic compensation ability under fluctuation voltage disturbance that wave tracer analyzes tested APF product is crossed, finally by master system control System disconnects high-voltage circuitbreaker QF1, the first high voltage connector KM1 and the second high voltage connector KM2;
C: it is contacted by master system control closed high circuit breaker Q F1, the first high voltage connector KM1 and third high pressure Device KM3 after idle and harmonic oscillator device normally starts, then is first controlled the second high voltage connector of closure by master system KM2 is then turned off third high voltage connector KM3, while exporting step-length by master system control voltage disturbance generating apparatus For 1Hz, frequency range is 45 Hz -55 Hz voltages, and controls idle and harmonic oscillator device by master system and work It in harmonic wave state and successively issues fundamental wave 50 times single harmonic component and fundamental wave 50 times multiple harmonics below below to combine, lead to The harmonic compensation ability under different voltages frequency disturbance that wave tracer analyzes tested APF product is crossed, finally by host computer system System control disconnects high-voltage circuitbreaker QF1, the first high voltage connector KM1 and the second high voltage connector KM2;
D: it is contacted by master system control closed high circuit breaker Q F1, the first high voltage connector KM1 and third high pressure Device KM3 after idle and harmonic oscillator device normally starts, then is first controlled the second high voltage connector of closure by master system KM2 is then turned off third high voltage connector KM3, while uneven by master system control voltage disturbance generating apparatus output Weighing apparatus degree range is 0-100%, the voltage that step-length is 2%, and controls idle and harmonic oscillator device by master system and work It in harmonic wave state and successively issues fundamental wave 50 times single harmonic component and fundamental wave 50 times multiple harmonics below below to combine, lead to The harmonic compensation ability under imbalance disturbance that wave tracer analyzes tested APF product is crossed, is finally controlled by master system Disconnect high-voltage circuitbreaker QF1, the first high voltage connector KM1 and the second high voltage connector KM2.
The present invention provides the APF detection platform and detection method of a kind of above-mentioned 380V voltage class, its advantages Be it will be apparent that firstly, detection platform of the invention based on the power electronic devices of modularization series-connected structure, structure Simply, flexible, fast response time is controlled;Secondly, detection platform of the invention is opened by high-voltage circuitbreaker and high voltage connector etc. The random combine of arbitrary patterns may be implemented in the switching of pass, while can also really simulate live voltage and current disturbing work Condition has the characteristics of flexible operation, test is comprehensive, precise and high efficiency;Again, detection method of the invention has comprehensively considered APF institute There is operating condition, fully tested the adaptability and compensation effect of subject APF, so that testing result is more comprehensively credible.

Claims (5)

1. a kind of detection platform of the APF of 380V voltage class, it is characterised in that: including detection circuit, tunable load, detector Device, test bus, signal collection bus and master system;
The detection circuit is used to provide voltage disturbance for tested APF product, and detection circuit includes 10kV power grid, breaker dress It sets, voltage disturbance generating apparatus, export communication means and downconverter device, the release unit, voltage disturbance Generating apparatus and downconverter device constitute controllable voltage source system;Wherein,
The 10kV power grid is used to provide voltage signal for detection platform;
The release unit is used for the isolation and protection of inlet wire major loop;
The voltage disturbance generating apparatus for generated under the control of master system different voltage dips, fluctuation and Unbalance voltage signal, to interfere tested APF device;
The output communication means is used to voltage disturbance generating apparatus and test bus carrying out electrical isolation;
The downconverter device is used to adjust the detection voltage of detection circuit;
The tunable load is using idle and harmonic oscillator device, and master system is by adjusting idle and harmonic oscillator The output mode of device makes the output signal of tested APF product change, and according to the output signal to be tested APF product To judge the performance of test product;
The detecting instrument includes that high-precision power analyzer, wave tracer, insulation pressure tester and infrared temperature are surveyed Instrument is tried, the high-precision power analyzer is used to detect the power of tested APF output of products, and the wave tracer is used for The voltage and current signals of tested APF output of products are detected, the insulation pressure tester is for detecting tested APF product Insulation resistance energy, the infrared temperature tester are used to detect the heat resistance of tested APF product;
The test bus is for connection detection circuit, tested APF product and tunable load;
The signal collection bus is used to summarize the release unit, inlet wire communication means, voltage disturbance generator dress It sets, export communication means, downconverter device and idle input and output signal and voltage and electricity with harmonic oscillator device Flow sampled signal;
The master system includes control cabinet device, on the spot industrial personal computer and long-range industrial personal computer, and the control cabinet device is used Voltage disturbance generating apparatus and the work of idle and harmonic oscillator device are controlled in sending pwm signal by secondary cable, also For passing through the input and output signal control release unit, inlet wire communication means, voltage disturbance generating apparatus, decompression Device for transformer and idle and harmonic oscillator device switch state;
The 10kV power grid is electrically connected with the input terminal of high-voltage circuitbreaker, and the output end and voltage disturbance of high-voltage circuitbreaker occur The input terminal of device device is electrically connected, and the output end of voltage disturbance generating apparatus is electrically connected with the input terminal of output communication means, The output end of output communication means is electrically connected with the input terminal of downconverter device, the output end of downconverter device and survey Bus electrical connection is tried, idle to be electrically connected with the output end of harmonic oscillator device with test bus, high-voltage circuitbreaker, voltage disturbance Generating apparatus, output communication means, downconverter device and it is idle pass through with harmonic oscillator device secondary cable and The communication connection of signal collection bus, signal collection bus are communicated to connect by secondary cable and control device, and control device passes through R422 is communicated to connect with industrial personal computer on the spot, and industrial personal computer is communicated to connect by router and long-range industrial personal computer on the spot, and described is high-precision Spend the output end of power analyzer, wave tracer, insulation pressure tester and infrared temperature tester with tested APF product Electrical connection;
The idle and harmonic oscillator device includes idle and harmonic oscillator and starting-up later time, the starting-up later time mould Block is made of the second high voltage connector, third high voltage connector and second resistance, the third high voltage connector first end with Bus electrical connection is tested, the second end of the third high voltage connector is electrically connected with idle with harmonic oscillator, and described the Third high voltage connector both ends are connected in parallel on after two high voltage connectors and second resistance series connection;The release unit is broken by height Road device is constituted, and the first end of high-voltage circuitbreaker is electrically connected with 10kV power grid, and the second end and voltage disturbance of high-voltage circuitbreaker occur The input terminal of device device is electrically connected.
2. the detection platform of the APF of 380V voltage class according to claim 1 a kind of, it is characterised in that: the electricity Pressure disturbance generating apparatus is internally provided with voltage disturbance generator, the voltage disturbance generator by input transformer, disturb Dynamic generator and filter circuit are constituted, and the input transformer is single-phase multiwinding transformer, and secondary side is exported using Multiple coil, Each vice-side winding is electrically connected with a back-to-back power cell, and the disturbance generator is existed by multiple back-to-back power cells Inverter side is cascaded into hub-and-spoke configuration, and the filter circuit is made of first resistor, inductance and capacitor, first resistor, inductance and Capacitor series connection, first resistor and capacitor both ends are provided with by-pass switch.
3. the detection platform of the APF of 380V voltage class according to claim 1 a kind of, it is characterised in that: described is defeated Communication means is made of the first high voltage connector out, and the first end of the first high voltage connector is defeated with voltage disturbance generating apparatus Outlet electrical connection, the second end of the first high voltage connector are electrically connected with the input terminal of downconverter device.
4. the detection platform of the APF of 380V voltage class according to claim 1 a kind of, it is characterised in that: the drop Pressure transformer device is made of step-down transformer, the primary coil first end of step-down transformer and the output end of output communication means Electrical connection, the second end ground connection of the primary coil of step-down transformer, the secondary coil first end and test bus of step-down transformer Electrical connection, the second end ground connection of the secondary coil of step-down transformer.
5. carrying out the inspection of the APF of 380V voltage class using the detection platform of the APF of 380V voltage class as claimed in claim 4 Survey method, which comprises the following steps:
Step 1: the grid-connected ability of the APF of 380V voltage class is detected, following five steps are divided into:
A: being issued the instruction of closed high breaker and the first high voltage connector by master system, is established on test bus The standard rated voltage of 380V, by wave tracer observe tested APF product whether chaser, and judge that tested APF product exists Whether the grid-connected ability under regular situation complies with standard, and is then controlled by master system and disconnects high-voltage circuitbreaker QF1 and first High voltage connector KM1, enters step B;
B: the instruction of closed high breaker and the first high voltage connector is issued by master system, while by master system control It is 2%-100% that voltage disturbance generating apparatus processed, which exports temporary range of decrease degree, and the temporary drop voltage that step-length is 2% is seen by wave tracer Examine tested APF product whether chaser, and analyze whether grid-connected ability of the tested APF product under temporarily drop voltage disturbance meets mark Then standard is controlled by master system and disconnects high-voltage circuitbreaker and the first high voltage connector, enters step C;
C: the instruction of closed high breaker and the first high voltage connector is issued by master system, while by master system Control voltage disturbance generating apparatus output pulsation amplitude is 2%-50%, and the temporary drop voltage that step-length is 2% passes through wave tracer Observe tested APF product whether chaser, and judge whether grid-connected ability of the tested APF product under fluctuation voltage disturbance meets mark Then standard is controlled by master system and disconnects high-voltage circuitbreaker and the first high voltage connector, enters step D;
D: the instruction of closed high breaker and the first high voltage connector is issued by master system, while by master system Controlling voltage disturbance generating apparatus output step-length is 1Hz, and frequency range is 45 Hz -55 Hz voltages, passes through wave tracer Observe tested APF product whether chaser, and judge whether tested grid-connected ability of the APF product under different frequency voltage disturbance accords with Then standardization is controlled by master system and disconnects high-voltage circuitbreaker and the first high voltage connector, enters step E;
E: the instruction of closed high breaker and the first high voltage connector is issued by master system, while by master system control Voltage disturbance generating apparatus output degree of unbalancedness range processed is 0-100%, and the voltage that step-length is 2% is seen by wave tracer Examine tested APF product whether chaser, and judge whether grid-connected ability of the tested APF product under unbalance voltage disturbance meets mark Then standard is controlled by master system and disconnects high-voltage circuitbreaker and the first high voltage connector, enters step two;
Step 2: the detection to the voltage range of operation of the APF of 380V voltage class issues closed high by master system and breaks The instruction of road device and the first high voltage connector, while being by master system control voltage disturbance generating apparatus output size 300V-460V, step-length are the voltage of 20V, by wave tracer observe tested APF product whether chaser, and judge tested APF Whether the voltage range of operation of product complies with standard, and is then controlled by master system and disconnects high-voltage circuitbreaker and the first high-voltage connecting Tentaculum enters step three;
Step 3: to the harmonic compensation performance detection of the APF of 380V voltage class, by master system control closed high open circuit Device, the first high voltage connector and third high voltage connector, after idle and harmonic oscillator device normally starts, then by host computer System first controls the second high voltage connector of closure, is then turned off third high voltage connector, controls voltage disturbance by master system Generating apparatus works in the rated operational voltage of 380V, while controlling the work of idle and harmonic oscillator device in harmonic wave State simultaneously successively issues fundamental wave 50 times single harmonic component and fundamental wave 50 times multiple harmonic combinations below below, passes through waveform recording Instrument judges whether the harmonic compensation ability of tested APF product complies with standard, and is finally controlled by master system and disconnects high pressure open circuit Device, the first high voltage connector and the second high voltage connector, enter step four;
Step 4: to the harmonic compensation performance detection under the voltage disturbance of the APF of 380V voltage class, it is divided into following four step It is rapid:
A: by master system control closed high breaker, the first high voltage connector and third high voltage connector, to it is idle with After harmonic oscillator device normally starts, then the second high voltage connector of closure is first controlled by master system, be then turned off third High voltage connector, while exporting temporary range of decrease degree by master system control voltage disturbance generating apparatus is 2%-100%, step-length is 2% temporary drop voltage, and the idle work with harmonic oscillator device controlled in harmonic wave state by master system and successively Fundamental wave 50 times single harmonic component and fundamental wave 50 times multiple harmonic combinations below below are issued, are judged by wave tracer tested Whether the harmonic compensation ability under temporarily drop voltage disturbance of APF product complies with standard, and is finally controlled by master system and disconnects height Voltage breaker, the first high voltage connector and the second high voltage connector, enter step b;
B: by master system control closed high breaker, the first high voltage connector and third high voltage connector, to it is idle with After harmonic oscillator device normally starts, then the second high voltage connector of closure is first controlled by master system, be then turned off third High voltage connector, while being 2%-50% by master system control voltage disturbance generating apparatus output pulsation amplitude, step-length is 2% temporary drop voltage, and the idle work with harmonic oscillator device controlled in harmonic wave state by master system and successively Fundamental wave 50 times single harmonic component and fundamental wave 50 times multiple harmonic combinations below below are issued, are judged by wave tracer tested Whether the harmonic compensation ability under fluctuation voltage disturbance of APF product complies with standard, and is finally controlled by master system and disconnects height Voltage breaker, the first high voltage connector and the second high voltage connector, enter step c;
C: by master system control closed high breaker, the first high voltage connector and third high voltage connector, to it is idle with After harmonic oscillator device normally starts, then the second high voltage connector of closure is first controlled by master system, be then turned off third High voltage connector, while being 1Hz, frequency range 45 by master system control voltage disturbance generating apparatus output step-length Hz -55 Hz voltage, and by master system control the idle work with harmonic oscillator device harmonic wave state and according to Secondary sending fundamental wave 50 times single harmonic component and fundamental wave 50 times below multiple harmonic combinations below, judge quilt by wave tracer Whether the harmonic compensation ability under different voltages frequency disturbance for surveying APF product complies with standard, and is finally controlled by master system High-voltage circuitbreaker, the first high voltage connector and the second high voltage connector are disconnected, d is entered step;
D: by master system control closed high breaker, the first high voltage connector and third high voltage connector, to it is idle with After harmonic oscillator device normally starts, then the second high voltage connector of closure is first controlled by master system, be then turned off third High voltage connector, while being 0-100% by master system control voltage disturbance generating apparatus output degree of unbalancedness range, step A length of 2% voltage, and the idle work with harmonic oscillator device controlled in harmonic wave state by master system and successively Fundamental wave 50 times single harmonic component and fundamental wave 50 times multiple harmonic combinations below below are issued, are judged by wave tracer tested Whether the harmonic compensation ability under imbalance disturbance of APF product complies with standard, and is finally controlled by master system and disconnects high pressure Breaker, the first high voltage connector and the second high voltage connector.
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