CN108107287A - Based on closed loop response dynamic reactive generating means device for detecting performance and detection method - Google Patents
Based on closed loop response dynamic reactive generating means device for detecting performance and detection method Download PDFInfo
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- CN108107287A CN108107287A CN201710420458.6A CN201710420458A CN108107287A CN 108107287 A CN108107287 A CN 108107287A CN 201710420458 A CN201710420458 A CN 201710420458A CN 108107287 A CN108107287 A CN 108107287A
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
The invention discloses one kind based on closed loop response dynamic reactive generating means device for detecting performance and detection method, solve the problems, such as that the prior art can not complete every test performance objective when being detected to dynamic reactive generating means.The present invention is tested in real simulation under the operation of power networks state of station, the controllable disturbance set by industrial personal computer replaces the uncontrollable disturbance of tested station collection electric line switching, reach the true waveform acquisition to the response characteristic of dynamic reactive generating means, realize the objective judgement to dynamic reactive generating means performance;Particularly realize the response characteristic test of dynamic reactive generating means of the tested station under low pressure, high voltage limit state.
Description
Technical field
The present invention relates to a kind of based on the dynamic reactive generating means device for detecting performance of Secondary Disturbance closed loop response and inspection
Survey method, suitable for different capabilities, voltage class, the dynamic reactive generating means performance detection of principle.
Background technology
The new energy such as wind-power electricity generation and photovoltaic generation are respectively provided with the characteristics of intermittent and fluctuation, intensively connect on a large scale
After entering into traditional power grid, impact is caused to power grid.The fluctuation of new-energy grid-connected power will necessarily cause grid entry point voltage
Frequent fluctuation.Especially in electric network fault, Wind turbines and photovoltaic combining inverter all there are high-low voltage crossing process,
It is limited by its Reactive-power control ability, it may occur that new energy power station large area off-grid accident seriously affects periphery electrification
The power quality of the important power loads such as railway, satellite launch center, large-scale public service industry.In order to improve containing large capacity
The safety and stability performance of the power grid of wind-powered electricity generation and photovoltaic power system, is equipped with dynamic reactive generating means in such power grid, with
Achieve the purpose that the power quality for improving its power grid.Outfit to the dynamic reactive generating means of different new energy stations, is root
According to the being customized parameter configuration such as the electric network composition of the station, loading condition.Dynamic reactive generating means generally has perseverance
Voltage output pattern and permanent idle two kinds of operating modes of output mode.Dynamic reactive generating means is typically to export mould in constant voltage
Reactive-load compensation is carried out to power grid under formula, in this mode, the response time of dynamic reactive generating means is reflection dynamic reactive
The leading indicator of generating means performance, the calculating of response time are as starting point when being occurred using grid disturbance, and dynamic reactive fills
It is terminal to put idle output valve and reach when it stablizes the 90% of output.The idle output mode of perseverance of dynamic reactive generating means is general
It is when dynamic reactive generating means accesses power grid, is tested or used in the debugging stage.
Relevant criterion proposes the response time of new energy station dynamic reactive generating means and high-low voltage ride-through capability
It clearly requires.This just need at the scene to detect the dynamic property of dynamic reactive generating means with carrying out objective and into
Row objective appraisal, to check and rate the quality of dynamic reactive generating means performance.At present, for dynamic reactive generating means performance
There are mainly three types of test methods:(1) step instruction adjusts detection method, it is to issue idle step to dynamic reactive generating means
Then instruction detects idle be changed to by initial value and sets desired value required time, this test method exists and can not really detect
When going out voltage disturbance the defects of the overall process response time of dynamic reactive generating means.(2) secondary circuit disturbance analog detection method,
It is the secondary side input analog voltage undulate quantity in dynamic reactive generating means, measures its primary side response condition, is come with this
Judge response process.This measuring technology can not form closed loop response, have larger difference with real response process, testing result is not
Really.(3) analog detection method is once disturbed, is typically chosen the collection electric line for the capacity maximum being connected on busbar, it is carried out
Switching, manufacture busbar voltage disturb, remaining set electric line still normal operation on busbar, using the disturbance as reference point, test dynamic
The response time of reactive generating device.This Comparison between detecting methods science, but also there are problems that following three:First, due to station
The capacity of each collection electric line that is connect of busbar be different, busbar voltage drop depth is uncontrollable caused by switching, to dynamic
The performances evaluation of reactive generating device is not objective;Second is that the busbar voltage drop depth manufactured by existing switching collection electric line is
Limited, (general wind power plant requirement is 0.2 times of specified electricity to the drop depth index that busbar voltage drop depth does not reach requirement
Pressure;Photovoltaic plant is the low-voltage of 0 voltage of requirement);Third, the mode of switching collection electric line can not generate high voltage disturbance, cause
It can not complete the performance test under high voltage limiting voltage to dynamic reactive generating means.
The content of the invention
The present invention provides one kind based on closed loop response dynamic reactive generating means device for detecting performance and detection method, solution
The prior art of having determined can not complete the problem of every test performance objective when being detected to dynamic reactive generating means.
The present invention is to solve more than technical problem by the following technical programs:
A kind of dynamic reactive generating means device for detecting performance based on Secondary Disturbance closed loop response, including high-voltage side bus, low
Side bus and industrial personal computer are pressed, dynamic reactive generating means and low-pressure side voltage mutual inductor are connected on low-pressure side bus,
High side voltage mutual inductor, the dynamic reactive hair of the linear quadratic control cabinet of dynamic reactive generating means are connected on high-voltage side bus
Generating apparatus output voltage terminal is linked together by the first analog-digital converter with industrial personal computer, and the two of dynamic reactive generating means
The dynamic reactive generating means output current end of secondary control cabinet is linked together by the second analog-digital converter with industrial personal computer,
The output terminal of industrial personal computer is connected with the dynamic reactive generating means Input voltage terminal of the linear quadratic control cabinet of dynamic reactive generating means
It is connected together.
The secondary survey voltage tester end of industrial personal computer and high side voltage mutual inductor links together, industrial personal computer and low-pressure side electricity
The secondary survey voltage tester end of pressure mutual inductor links together.
A kind of dynamic reactive generating means method for testing performance based on Secondary Disturbance closed loop response, which is characterized in that bag
Include following steps:
First, determine to be tested station power grid busbar voltage caused by the unit reactive-load compensation amount institute energy of dynamic reactive generating means
The average value k of changing value specifically determines that method is:The dynamic reactive being connected on the low-pressure side bus of tested station is filled
It puts and is arranged under permanent idle output mode, manually set, the continuous idle output valve for adjusting dynamic reactive generating means is adjusted
Whole scope is:The nominal reactive of nominal reactive output capacity to the dynamic reactive generating means of negative dynamic reactive generating means is defeated
Go out capacity, the knots modification set every time is the 10% of nominal reactive output capacity, and passes through the secondary of high side voltage mutual inductor
Voltage tester end is surveyed, the changing value of the voltage of high-voltage side bus is read, by the voltage change of each high-voltage side bus of reading
Divided by 10% nominal reactive output capacity (0.1QN), calculate the unit reactive-load compensation amount of one group of dynamic reactive generating means
The variation magnitude of station power grid busbar voltage is tested caused by institute's energy, then is averaged, obtaining unit reactive-load compensation amount can draw
The average value k of the variation magnitude of the power grid busbar voltage for the tested station risen;
Secondly, the dynamic reactive generating means of the output terminal of industrial personal computer and the linear quadratic control cabinet of dynamic reactive generating means is inputted
Voltage end links together, and sets the idle output of dynamic reactive generating means as minimum idle state, and sets industrial personal computer
The value of output terminal is the load voltage value of the high-voltage side bus of tested station, then, by two secondary controls of dynamic reactive generating means
The dynamic reactive generating means Input voltage terminal of cabinet processed and the high side voltage mutual inductor on the high-voltage side bus of tested station
The line end of secondary survey disconnects, and the voltage of the high-voltage side bus of tested station is substituted with the output terminal of industrial personal computer, into action
The response characteristic test of state reactive generating device;
Thirdly, dynamic reactive generating means is arranged under constant voltage output mode;
Finally, the test of the various response characteristics of dynamic reactive generating means is carried out respectively, and step is as follows:The first step carries out one
As dynamic reactive generating means under voltage fluctuation response characteristic test:Dynamic is subtracted with the load voltage value of high-voltage side bus
The dead zone voltage of reactive generating device has been worth to difference, sets the voltage value of output terminal of industrial personal computer as the 0.95 of the difference
Times, gather dynamic reactive generating means linear quadratic control cabinet on dynamic reactive generating means output voltage terminal on voltage value and
The current value on dynamic reactive generating means output current end on the linear quadratic control cabinet of dynamic reactive generating means, using instantaneous
Idle theory Continuous plus goes out the output reactive power Q of dynamic reactive generating device1, the output reactive power Q that calculates1With electricity
The product of the average value k of the variation magnitude of net busbar voltage is plus obtained and be after the load voltage value of high-voltage side bus
In the voltage value on the output terminal of industrial personal computer, you can simulated determination goes out, when occurring its load voltage value on high-voltage side bus
During 0.95 times of disturbance, the response characteristic of dynamic reactive generating means;Then, the voltage of the output terminal of industrial personal computer is set respectively successively
The load voltage value being worth for high-voltage side bus subtract dynamic reactive generating means dead zone voltage be worth to 0.85 times of difference,
The load voltage value of 0.8 times, 0.75 times and 0.7 times and high-voltage side bus adds the dead zone voltage of dynamic reactive generating means
It has been worth to 1.05 times and 1.1 times with value, you can simulated determination goes out, when occurring corresponding voltage disturbance on high-voltage side bus,
The response characteristic of dynamic reactive generating means;
The response characteristic test of second step, dynamic reactive generating means under wind power plant low voltage crossing:Set industrial personal computer
The voltage value of output terminal is 0.2 times of the load voltage value of high-voltage side bus, the linear quadratic control of acquisition dynamic reactive generating means
Voltage value on dynamic reactive generating means output voltage terminal on cabinet and on the linear quadratic control cabinet of dynamic reactive generating means
Current value on dynamic reactive generating means output current end goes out dynamic reactive using Instantaneous Power Theory Continuous plus and fills
The output reactive power Q put1, the output reactive power Q of dynamic reactive generating means1With the variation magnitude of power grid busbar voltage
The product of average value k is equal to the voltage value on the output terminal of industrial personal computer after being added with the load voltage value of high-voltage side bus;
Simulated determination goes out, the response characteristic test of the dynamic reactive generating means under wind power plant low voltage crossing;
3rd step, the test of the response characteristic of dynamic reactive generating means under photovoltaic plant low voltage crossing:Set industrial personal computer
Output terminal voltage value be 0, gather dynamic reactive generating means linear quadratic control cabinet on dynamic reactive generating means it is defeated
Go out the dynamic reactive generating means output current on the linear quadratic control cabinet of the voltage value on voltage end and dynamic reactive generating means
Current value on end goes out the output reactive power Q of dynamic reactive generating device using Instantaneous Power Theory Continuous plus1, dynamic
The output reactive power Q of reactive generating device1It is female with the product of the average value k of the variation magnitude of power grid busbar voltage and high-pressure side
The load voltage value of line is equal to the voltage value on the output terminal of industrial personal computer after being added;Can simulated determination go out, it is low in photovoltaic plant
The response characteristic test of dynamic reactive generating means under voltage ride-through;
The response characteristic test of dynamic reactive generating means under 4th step, high voltage crossing:Set the output terminal of industrial personal computer
Voltage value is 1.3 times of the load voltage value of high-voltage side bus, is gathered dynamic on the linear quadratic control cabinet of dynamic reactive generating means
Voltage value on state reactive generating device output voltage terminal and the dynamic reactive on the linear quadratic control cabinet of dynamic reactive generating means
Current value on generating means output current end goes out the output of dynamic reactive generating device using Instantaneous Power Theory Continuous plus
Reactive power Q1, the output reactive power Q of dynamic reactive generating means1With the average value k's of the variation magnitude of power grid busbar voltage
Product is equal to the voltage value on the output terminal of industrial personal computer after being added with the load voltage value of high-voltage side bus;It can simulated determination
Go out, the response characteristic of the dynamic reactive generating means under high voltage crossing.
In the case where real simulation is tested the operation of power networks state of station, the controllable disturbance set by industrial personal computer replaces the present invention
The uncontrollable disturbance of tested station collection electric line switching, has reached the true waveform to the response characteristic of dynamic reactive generating means
Acquisition, realizes the objective judgement to dynamic reactive generating means performance;Tested station is particularly realized in low pressure, high-pressure stage
The response characteristic test of dynamic reactive generating means under limit state.
Description of the drawings
The dynamic reactive generating means device for detecting performance wiring based on Secondary Disturbance closed loop response that Fig. 1 is the present invention is shown
It is intended to.
Specific embodiment
Below according to attached drawing, the present invention is described in detail:
A kind of dynamic reactive generating means device for detecting performance based on Secondary Disturbance closed loop response, including high-voltage side bus 1, low
Side bus 2 and industrial personal computer 6 are pressed, dynamic reactive generating means 5 and low-pressure side voltage mutual inductance are connected on low-pressure side bus 2
Device 4, is connected with high side voltage mutual inductor 3 on high-voltage side bus 1, and the linear quadratic control cabinet 7 of dynamic reactive generating means 5 moves
State reactive generating device output voltage terminal VoutLinked together by the first analog-digital converter 8 with industrial personal computer 6, dynamically without
The dynamic reactive generating means output current end I of the linear quadratic control cabinet 7 of work(generating means 5outIt is by the second analog-digital converter 9
It links together with industrial personal computer 6, the output terminal V of industrial personal computer 61It is the linear quadratic control cabinet 7 with dynamic reactive generating means 5
Dynamic reactive generating means Input voltage terminal VinIt links together.
Industrial personal computer 6 and the secondary survey voltage tester end of high side voltage mutual inductor 3 link together, industrial personal computer 6 and low pressure
The secondary survey voltage tester end of side voltage transformer 4 links together.
A kind of dynamic reactive generating means method for testing performance based on Secondary Disturbance closed loop response, which is characterized in that bag
Include following steps:
First, determine to be tested station power grid busbar voltage caused by the unit reactive-load compensation amount institute energy of dynamic reactive generating means 5
Changing value average value k, specifically definite method be:The dynamic reactive being connected on the low-pressure side bus 2 of tested station is sent out
Generating apparatus 5 is arranged under permanent idle output mode, is manually set, continuous to adjust the idle defeated of dynamic reactive generating means 5
Go out value, adjusting range is:Nominal reactive output capacity-the Q of negative dynamic reactive generating means 5NTo dynamic reactive generating means 5
Nominal reactive output capacity QN, the knots modification set every time is the 10% of nominal reactive output capacity, and passes through high-pressure side electricity
The secondary survey voltage tester end of mutual inductor 3 is pressed, reads the changing value of the voltage of high-voltage side bus 1, record result is as follows:
When idle output is-QNWhen, record high side voltage value is VH1;
When idle output is -0.9QNWhen, record high side voltage value is VH2;
When idle output is -0.8QNWhen, record high side voltage value is VH3;
When idle output is -0.7QNWhen, record high side voltage value is VH4;
When idle output is -0.6QNWhen, record high side voltage value is VH5;
When idle output is -0.5QNWhen, record high side voltage value is VH6;
When idle output is -0.4QNWhen, record high side voltage value is VH7;
When idle output is -0.3QNWhen, record high side voltage value is VH8;
When idle output is -0.2QNWhen, record high side voltage value is VH9;
When idle output is -0.1QNWhen, record high side voltage value is VH10;
When idle output is 0, record high side voltage value is VH11;
When idle output is 0.1QNWhen, record high side voltage value is VH12;
When idle output is 0.2QNWhen, record high side voltage value is VH13;
When idle output is 0.3QNWhen, record high side voltage value is VH14;
When idle output is 0.4QNWhen, record high side voltage value is VH15;
When idle output is 0.5QNWhen, record high side voltage value is VH16;
When idle output is 0.6QNWhen, record high side voltage value is VH17;
When idle output is 0.7QNWhen, record high side voltage value is VH18;
When idle output is 0.8QNWhen, record high side voltage value is VH19;
When idle output is 0.9QNWhen, record high side voltage value is VH20;
When idle output is QNWhen, record high side voltage value is VH21;
By the voltage change of each high-voltage side bus 1 of reading divided by 10% nominal reactive output capacity i.e., 0.1QN, meter
The variation of station power grid busbar voltage is tested caused by calculating the unit reactive-load compensation amount institute energy of one group of dynamic reactive generating means 5
Magnitude, then be averaged, obtain being tested the variation magnitude of the power grid busbar voltage of station caused by unit reactive-load compensation amount institute energy
Average value k, specific formula for calculation is as follows:
Wherein:
The value range of i is 1-20;
Secondly, by the output terminal V of industrial personal computer 61It is filled with the dynamic reactive of the linear quadratic control cabinet 7 of dynamic reactive generating means 5
Put Input voltage terminal VinIt links together, the idle output of dynamic reactive generating means 5 is set for minimum idle state, and is set
The output terminal V of industrial personal computer 61Value be tested station high-voltage side bus 1 load voltage value VHN, then, dynamic reactive is sent out
The dynamic reactive generating means Input voltage terminal V of the linear quadratic control cabinet 7 of generating apparatus 5inWith on the high-voltage side bus 1 of tested station
The line end of the secondary survey of high side voltage mutual inductor 3 disconnects, with the output terminal V of industrial personal computer 61To substitute the high pressure of tested station
The voltage of side bus 1, to carry out the test of the response characteristic of dynamic reactive generating means 5;
Thirdly, dynamic reactive generating means 5 is arranged under constant voltage output mode;
Finally, the test of the various response characteristics of dynamic reactive generating means 5 is carried out respectively, and step is as follows:
The first step, the response characteristic test for carrying out dynamic reactive generating means 5 under general voltage fluctuation:With high-voltage side bus 1
Load voltage value VHNSubtract the dead zone voltage value V of dynamic reactive generating means 5dDifference has been obtained, has set the output of industrial personal computer 6
Hold V1Voltage value be 0.95 times of the difference, the dynamic reactive hair on the linear quadratic control cabinet 7 of acquisition dynamic reactive generating means 5
Generating apparatus output voltage terminal VoutOn voltage value and dynamic reactive generating means 5 linear quadratic control cabinet 7 on dynamic reactive occur
Device output current end IoutOn current value, the output of dynamic reactive generating device 5 is gone out using Instantaneous Power Theory Continuous plus
Reactive power Q1, the output reactive power Q that calculates1Product with the average value k of the variation magnitude of power grid busbar voltage is plus height
Press the load voltage value V of side bus 1HNOutput terminal V that is obtained afterwards and being equal to industrial personal computer 61On voltage value, you can mould
Plan determines, when occurring its load voltage value V on high-voltage side bus 1HN0.95 times disturbance when, dynamic reactive generating means 5
Response characteristic;Then, the output terminal V of industrial personal computer 6 is set respectively1For 0.9 times of (VHN-Vd), 0.85 times of (VHN-Vd), 0.8 times
(VHN-Vd), 0.75 times of (VHN-Vd), 0.7 times of (VHN-Vd), 1.05 times of (VHN+Vd), 1.1 times of (VHN+Vd), you can simulated determination
Go out, as 0.9 times of (V of appearance on high-voltage side bus 1HN-Vd), 0.85 times of (VHN-Vd), 0.8 times of (VHN-Vd), 0.75 times of (VHN-Vd)、
0.7 times of (VHN-Vd), 1.05 times of (VHN+Vd), 1.1 times of (VHN+Vd) disturbance when, the response characteristic of dynamic reactive generating means 5;
The response characteristic test of second step, dynamic reactive generating means 5 under wind power plant low voltage crossing:Set industrial personal computer
The voltage value of output terminal is 0.2 times of the load voltage value of high-voltage side bus, two secondary controls of acquisition dynamic reactive generating means 5
Dynamic reactive generating means output voltage terminal V on cabinet 7 processedoutOn voltage value and dynamic reactive generating means 5 linear quadratic control
Dynamic reactive generating means output current end I on cabinet 7outOn current value, using Instantaneous Power Theory Continuous plus go out dynamic
The output reactive power Q of reactive generating device 51, the output reactive power Q of dynamic reactive generating means 51With power grid busbar voltage
Variation magnitude average value k product and high-voltage side bus 1 load voltage value VHNIt is equal to the output terminal of industrial personal computer 6 after addition
V1On voltage value;Can simulated determination go out, the response characteristic of the dynamic reactive generating means 5 under wind power plant low voltage crossing
Test;
3rd step, the test of the response characteristic of dynamic reactive generating means 5 under photovoltaic plant low voltage crossing:Set industrial personal computer
Output terminal voltage value be 0, set industrial personal computer 6 output terminal V1Voltage value be 0 times of the difference, gather dynamic nothing
Dynamic reactive generating means output voltage terminal V on the linear quadratic control cabinet 7 of work(generating means 5outOn voltage value and dynamic nothing
Dynamic reactive generating means output current end I on the linear quadratic control cabinet 7 of work(generating means 5outOn current value, using instantaneous
Idle theory Continuous plus goes out the output reactive power Q of dynamic reactive generating device 51, the output nothing of dynamic reactive generating means 5
Work(power Q1With the product of average value k of the variation magnitude of power grid busbar voltage and the load voltage value V of high-voltage side bus 1HNPhase
It is equal to the output terminal V of industrial personal computer 6 after adding1On voltage value;Can simulated determination go out, it is dynamic under photovoltaic plant low voltage crossing
The response characteristic test of state reactive generating device 5;
The response characteristic test of dynamic reactive generating means 5 under 4th step, high voltage crossing:Set the output terminal of industrial personal computer
Voltage value is 1.3 times of load voltage value of high-voltage side bus, on the linear quadratic control cabinet 7 of acquisition dynamic reactive generating means 5
Dynamic reactive generating means output voltage terminal VoutOn voltage value and dynamic reactive generating means 5 linear quadratic control cabinet 7 on it is dynamic
State reactive generating device output current end IoutOn current value, go out dynamic reactive using Instantaneous Power Theory Continuous plus
The output reactive power Q of device 51, the output reactive power Q of dynamic reactive generating means 51With the variable quantity of power grid busbar voltage
The product of the average value k of value and the load voltage value V of high-voltage side bus 1HNIt is equal to the output terminal V of industrial personal computer 6 after addition1On electricity
Pressure value;Can simulated determination go out, the response characteristic of the dynamic reactive generating means 5 under high voltage crossing.
Claims (3)
1. a kind of dynamic reactive generating means device for detecting performance based on Secondary Disturbance closed loop response, including high-voltage side bus
(1), low-pressure side bus(2)And industrial personal computer(6), in low-pressure side bus(2)On be connected to dynamic reactive generating means(5)With
Low-pressure side voltage mutual inductor(4), in high-voltage side bus(1)On be connected with high side voltage mutual inductor(3), which is characterized in that it is dynamic
State reactive generating device(5)Linear quadratic control cabinet(7)Dynamic reactive generating means output voltage terminal(V out)It is by the first mould
Number converter(8)With industrial personal computer(6)It links together, dynamic reactive generating means(5)Linear quadratic control cabinet(7)Dynamic nothing
Work(generating means output current end(I out)It is by the second analog-digital converter(9)With industrial personal computer(6)It links together, industry control
Machine(6)Output terminal(V 1)It is and dynamic reactive generating means(5)Linear quadratic control cabinet(7)Dynamic reactive generating means input
Voltage end(V in)It links together.
2. a kind of dynamic reactive generating means performance detection dress based on Secondary Disturbance closed loop response according to claim 1
It puts, which is characterized in that industrial personal computer(6)With high side voltage mutual inductor(3)Secondary survey voltage tester end link together, industry control
Machine(6)With low-pressure side voltage mutual inductor(4)Secondary survey voltage tester end link together.
3. a kind of dynamic reactive generating means method for testing performance based on Secondary Disturbance closed loop response, which is characterized in that including
Following steps:
First, dynamic reactive generating means is determined(5)Unit reactive-load compensation amount institute energy caused by be tested station power grid busbar electricity
The average value k of the changing value of pressure specifically determines that method is:The low-pressure side bus of tested station will be connected to(2)On dynamic nothing
Work(generating means(5)It is arranged under permanent idle output mode, manually sets, it is continuous to adjust dynamic reactive generating means(5)
Idle output valve, adjusting range is:Negative dynamic reactive generating means(5)Nominal reactive output capacity(-Q N)To dynamic
Reactive generating device(5)Nominal reactive output capacity(Q N), the knots modification set every time is nominal reactive output capacity
10%, and pass through high side voltage mutual inductor(3)Secondary survey voltage tester end, read high-voltage side bus(1)Voltage variation
Value, by each high-voltage side bus of reading(1)Voltage change divided by 10% nominal reactive output capacity(0.1Q N), calculate
Go out one group of dynamic reactive generating means(5)Unit reactive-load compensation amount institute energy caused by be tested station power grid busbar voltage variation
Magnitude, then be averaged, obtain being tested the variation magnitude of the power grid busbar voltage of station caused by unit reactive-load compensation amount institute energy
Average valuek;
Secondly, by industrial personal computer(6)Output terminal(V1)With dynamic reactive generating means(5)Linear quadratic control cabinet(7)Dynamic reactive
Generating means Input voltage terminal(Vin)It links together, dynamic reactive generating means is set(5)Idle output be minimum idle
State, and industrial personal computer is set(6)Output terminal(V1)Value be tested station high-voltage side bus(1)Load voltage value
(VHN), then, by dynamic reactive generating means(5)Linear quadratic control cabinet(7)Dynamic reactive generating means Input voltage terminal
(Vin)With the high-voltage side bus of tested station(1)On high side voltage mutual inductor(3)Secondary survey line end disconnect, recruitment
Control machine(6)Output terminal(V1)To substitute the high-voltage side bus of tested station(1)Voltage, to carry out dynamic reactive generating means
(5)Response characteristic test;
Thirdly, by dynamic reactive generating means(5)It is arranged under constant voltage output mode;
Finally, dynamic reactive generating means is carried out respectively(5)Various response characteristics test, step is as follows:
Dynamic reactive generating means under the first step, the general voltage fluctuation of progress(5)Response characteristic test:Use high-voltage side bus
(1)Load voltage value VHNSubtract dynamic reactive generating means(5)Dead zone voltage value VdDifference is obtained(V HN-V d), setting
Industrial personal computer(6)Output terminal(V1)Voltage value be 0.95 times of the difference, gather dynamic reactive generating means(5)Two secondary controls
Cabinet processed(7)On dynamic reactive generating means output voltage terminal(Vout)On voltage value and dynamic reactive generating means(5)Two
Secondary control cabinet(7)On dynamic reactive generating means output current end(Iout)On current value, it is continuous using Instantaneous Power Theory
Calculate dynamic reactive generating means(5)Output reactive power Q1, the output reactive power Q that calculates1With power grid busbar voltage
Variation magnitude average valuekProduct add high-voltage side bus(1)Load voltage value VHNIt is obtained and be equal to work afterwards
Control machine(6)Output terminal(V1)On voltage value, you can simulated determination goes out, work as high-voltage side bus(1)On there is its specified electricity
Pressure value VHN0.95 times disturbance when, dynamic reactive generating means(5)Response characteristic;Then, industrial personal computer is set respectively(6)It is defeated
Outlet(V 1)For difference(V HN-V d)0.9 times, difference(V HN-V d)0.85 times, difference(V HN-V d)0.8 times, difference(V HN-V d)0.75 times, difference(V HN-V d)0.7 times, difference(V HN-V d)1.05 times, difference(V HN-V d)1.1 times, you can mould
Plan determines, and works as high-voltage side bus(1)On there is difference(V HN-V d)0.9 times, difference(V HN-V d)0.85 times, difference(V HN-V d)0.8 times, difference(V HN-V d)0.75 times, difference(V HN-V d)0.7 times, difference(V HN-V d)1.05 times, difference
(V HN-V d)1.1 times disturbance when, dynamic reactive generating means(5)Response characteristic;
Second step, the dynamic reactive generating means under wind power plant low voltage crossing(5)Response characteristic test:Set industrial personal computer
The voltage value of output terminal be 0.2 times of load voltage value of high-voltage side bus, gather dynamic reactive generating means(5)It is secondary
Switch board(7)On dynamic reactive generating means output voltage terminal(Vout)On voltage value and dynamic reactive generating means(5)'s
Linear quadratic control cabinet(7)On dynamic reactive generating means output current end(Iout)On current value, connected using Instantaneous Power Theory
It is continuous to calculate dynamic reactive generating means(5)Output reactive power Q1, dynamic reactive generating means(5)Output reactive power
Q1With the average value of the variation magnitude of power grid busbar voltagekProduct and high-voltage side bus(1)Load voltage value VHNAfter addition
Equal to industrial personal computer(6)Output terminal(V1)On voltage value;Can simulated determination go out, the dynamic under wind power plant low voltage crossing
Reactive generating device(5)Response characteristic test;
3rd step, the dynamic reactive generating means under photovoltaic plant low voltage crossing(5)Response characteristic test:Set industry control
The voltage value of the output terminal of machine be 0, set industrial personal computer(6)Output terminal(V1)Voltage value be 0 times of the difference, acquisition is dynamic
State reactive generating device(5)Linear quadratic control cabinet(7)On dynamic reactive generating means output voltage terminal(Vout)On voltage value
With dynamic reactive generating means(5)Linear quadratic control cabinet(7)On dynamic reactive generating means output current end(Iout)On electricity
Flow valuve goes out dynamic reactive generating device using Instantaneous Power Theory Continuous plus(5)Output reactive power Q1, dynamic reactive hair
Generating apparatus(5)Output reactive power Q1With the average value of the variation magnitude of power grid busbar voltagekProduct and high-voltage side bus
(1)Load voltage value VHNIt is equal to industrial personal computer after addition(6)Output terminal(V1)On voltage value;Can simulated determination go out,
Dynamic reactive generating means under photovoltaic plant low voltage crossing(5)Response characteristic test;
Dynamic reactive generating means under 4th step, high voltage crossing(5)Response characteristic test:Set the output terminal of industrial personal computer
Voltage value be 1.3 times of load voltage value of high-voltage side bus, gather dynamic reactive generating means(5)Linear quadratic control cabinet
(7)On dynamic reactive generating means output voltage terminal(Vout)On voltage value and dynamic reactive generating means(5)Two secondary controls
Cabinet processed(7)On dynamic reactive generating means output current end(Iout)On current value, utilize Instantaneous Power Theory Continuous plus
Go out dynamic reactive generating device(5)Output reactive power Q1, dynamic reactive generating means(5)Output reactive power Q1With electricity
The average value of the variation magnitude of net busbar voltagekProduct and high-voltage side bus(1)Load voltage value VHNIt is equal to work after addition
Control machine(6)Output terminal V1On voltage value;Can simulated determination go out, the dynamic reactive generating means under high voltage crossing(5)
Response characteristic.
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