CN104300547A - Method for reactive substitution between wind power plant dynamic reactive compensation device and draught fans - Google Patents

Method for reactive substitution between wind power plant dynamic reactive compensation device and draught fans Download PDF

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Publication number
CN104300547A
CN104300547A CN201410579127.3A CN201410579127A CN104300547A CN 104300547 A CN104300547 A CN 104300547A CN 201410579127 A CN201410579127 A CN 201410579127A CN 104300547 A CN104300547 A CN 104300547A
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idle
gen
reactive
svc
compensation device
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CN104300547B (en
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刘海涛
王岗红
蓝海波
王哲
桑天松
汤磊
赵峰
郭庆来
王彬
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State Grid Corp of China SGCC
State Grid Jibei Electric Power Co Ltd
Beijing King Star Hi Tech System Control Co Ltd
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State Grid Corp of China SGCC
State Grid Jibei Electric Power Co Ltd
Beijing King Star Hi Tech System Control Co Ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/16—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/30—Reactive power compensation

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Wind Motors (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

The invention relates to a method for reactive substitution between a wind power plant dynamic reactive compensation device and draught fans and belongs to the technical field of reactive automatic regulation of voltage of a wind power plant. The method comprises the steps that the modified value of reactive upward regulating quantity and the modified value of reactive downward regulating quantity are determined according to the current total reactive value, the current reactive upward regulating quantity and the current reactive downward regulating quantity, which can be obtained by a draught fan monitoring system, of all wind power, the reactive substitution quantity is determined according to the reactive regulating step size of the dynamic reactive compensation device, the reactive substitution quantity is verified according to the reactive upward regulating quantity and the reactive downward regulating quantity of the wind power, and finally the reactive set value of the dynamic reactive compensation device and the reactive set value of each draught fan are determined respectively. According to the method for reactive substitution between the wind power plant dynamic reactive compensation device and the draught fans, smooth transition is kept in the whole process of substitution between the voltage of a grid-connecting point of the wind power plant and the voltage across the end where the draught fans are located, and safety and reliability of operation of the wind power plant are improved.

Description

The idle method of replacing of wind energy turbine set dynamic reactive compensation device and blower fan
Technical field
The invention belongs to wind energy turbine set voltage power-less automatic adjustment technology field, particularly the idle method of replacing of wind energy turbine set dynamic reactive compensation device and blower fan.
Background technology
GB GB/T19963-2011 " wind energy turbine set access power system technology regulation " points out: " wind energy turbine set should configure reactive voltage control system, possesses reactive power and regulates and voltage control capability.According to the instruction of power system dispatching mechanism, wind energy turbine set regulates it to send the reactive power of (or absorption) automatically, and realize the control to wind farm grid-connected point voltage, its governing speed and control precision should be able to meet the requirement that power system voltage regulates.”
According to this Standard, the reactive power source of wind energy turbine set comprises Wind turbines and Reactive Compensation in Wind Farm device.Wind energy turbine set will make full use of reactive capability and the regulating power thereof of Wind turbines; When the reactive capability of Wind turbines can not meet system voltage adjustment needs, should concentrate in wind energy turbine set the reactive power compensator installing suitable capacity additional, install dynamic reactive compensation device (SVG) if desired additional.
This GB also specifies, total installation of generating capacity is at million kilowatt scale and above wind farm group, and when electric power system generation three phase short circuit fault causes Voltage Drop, each wind energy turbine set should have following dynamic reactive enabling capabilities in low voltage crossing process.When wind farm grid-connected point voltage be in nominal voltage 20% ~ 90% interval in time, wind energy turbine set should be able to support voltage resume by injecting reactive current; From the moment that grid-connected point voltage falls appearance, the response time of dynamic reactive Current Control is not more than 75ms, and the duration should be no less than 550ms.
Blower fan Reactive-power control is the response time of level second, and dynamic reactive compensation device Reactive-power control is the response time of Millisecond, and when wind energy turbine set generation Voltage Drop, first dynamic reactive compensation device fast response time can regulate.Here the problem existed is: assuming that dynamic reactive compensation device still has idle regulating power when wind energy turbine set first time, Voltage Drop occurred, will increase fast and send idle until full to improve voltage; But when Voltage Drop occurs wind energy turbine set second time, dynamic reactive compensation device is owing to completely sending out, and cannot send more idle again, also just can't resolve the problem of Voltage Drop, and then may cause the generation of blower fan low-voltage off-grid accident.
Visible, wind energy turbine set first time occur Voltage Drop cause dynamic reactive compensation device completely send out after, second time occurs before Voltage Drop, if what the reactive power capability of blower fan can be utilized to be sent by dynamic reactive compensation device idlely cements out, ensure that dynamic reactive compensation device has certain Reactive-power control nargin, just can avoid there occurs of foregoing problems.
Output that dynamic reactive compensation device is idle divides and sends or absorb both direction, generally with positive number represent send idle, absorb idle with negative number representation, rated capacity as a set of dynamic reactive compensation device is 20MVar (megavar), then the scope of its idle output is-20MVar to+20MVar, represents the idle 20MVar of maximum Absorbable rod respectively, maximumly sends idle 20MVar.Dynamic reactive compensation device is idle, and output is 0MVar, represent it neither send idle, also do not absorb idle.
The variation relation of reactive power and voltage is: can improve voltage level of power grid when the reactive power that reactive apparatus increase sends, can reduce voltage level of power grid when reducing the reactive power sent; Otherwise, when reactive apparatus increase absorb reactive power time can reduce voltage level of power grid, reduce absorb reactive power time can improve voltage level of power grid.
Can find out, the idle operating point of dynamic reactive compensation device the best is 0MVar, now sending, the Reactive-power control nargin absorbed in idle both direction is maximum.Like this once Voltage Drop dynamic reactive compensation device can increase send idle to improve voltage, also can increase when overtension absorb idle to reduce voltage.
Certainly in order to ensure wind farm grid-connected point voltage and blower fan set end voltage all qualified, also cannot accomplish even if blower fan Reactive-power control may be depended under normal steady-state conditions alone, dynamic reactive compensation device at this moment can only be relied on to regulate certain reactive capability to support.But after electric network state changes, as long as blower fan is idle possessed regulating power, just must the idle reactive capability by dynamic reactive compensation device of blower fan be used to greatest extent to cement out at once.
Summary of the invention
The object of the invention is the generation for solving blower fan low-voltage off-grid accident, the idle method of replacing of a kind of wind energy turbine set dynamic reactive compensation device and blower fan is proposed, the inventive method makes wind farm grid-connected point voltage and blower fan set end voltage maintain smooth transition in whole replacement process, improves the safety and reliability that wind energy turbine set is run.
The idle method of replacing of the wind energy turbine set dynamic reactive compensation device that the present invention proposes and blower fan, it is characterized in that, the method comprises the following steps
1) when regulating cycle arrives, total current without work value, idle upwards controlled variable, downwards controlled variable of all wind-powered electricity generations can be obtained from fan monitoring system, be designated as Q respectively gen, Q gen_up, Q gen_down; Single blower fan Reactive-power control step-length (maximum permissible value of each Reactive-power control of single blower fan) is designated as Q gen_i; Blower fan number is designated as N;
If Q gen_up> Q gen_i* N, then the idle upwards controlled variable of blower fan is modified to: Q gen_up=Q gen_i* N;
If Q gen_down< (-1) * Q gen_i* N, then the idle downward controlled variable of blower fan is modified to: Q gen_down=(-1) * Q gen_i* N;
2) current dynamic reactive compensation device be designated as Q without work value svc, the Reactive-power control step-length of dynamic reactive compensation device is designated as Q svc_i; Idle replacement amount is designated as Q set;
Idle replacement amount is determined according to dynamic reactive compensation device Reactive-power control step-length:
If Q svc> Q svc_i, then Q is made set=Q svc_i;
If Q svc< (-1) * Q svc_i, then Q is made set=(-1) * Q svc_i;
If (-1) * is Q svc_i≤ Q svc≤ Q svc_i, then Q is made set=Q svc;
3) according to wind-powered electricity generation idle upwards controlled variable Q gen_up, downward controlled variable Q gen_downcheck idle replacement amount Q set:
If Q set> Q gen_up, then Q is made set=Q gen_up;
If Q set< Q gen_down, then Q is made set=Q gen_down;
4) if Q svc=0, then go to step 1), show that dynamic reactive compensation device Reactive Power Margin has reached maximum, need not idle displacement be carried out;
If Q set=0, then go to step 1), show that dynamic reactive compensation device or blower fan do not have idle diadochy, cannot idle displacement be carried out;
If Q svcand Q setbe not 0, expression can carry out idle displacement, determines that the idle set point of dynamic reactive compensation device and single blower fan is as follows respectively:
The idle set point Q of dynamic reactive compensation device svc_set=Q svc-Q set;
The idle set point Q of every Fans gen_set=(Q gen+ Q set)/N.
Feature and the advantage of the inventive method are:
The present invention is on wind farm grid-connected point voltage and the qualified basis of blower fan set end voltage, the Reactive-power control ability current according to blower fan, target is turned to so that the Reactive-power control nargin of dynamic reactive compensation device is maximum, exert oneself by controlling the idle of dynamic reactive compensation device, coordinate simultaneously and regulate that blower fan is idle exerts oneself, dynamic reactive compensation device is sent or absorb idle be replaced into blower fan send or absorb idle.
The inventive method is the Reactive-power control nargin of dynamic reactive compensation device by idle displacement regulating guarantee, Reactive-power control step-length simultaneously by arranging dynamic reactive compensation device and blower fan limits the amplitude at every turn regulated, make wind farm grid-connected point voltage and blower fan set end voltage maintain smooth transition in whole replacement process, improve the safety and reliability that wind energy turbine set is run.
Embodiment
Below in conjunction with a specific embodiment, introduce the idle method of replacing of wind energy turbine set dynamic reactive compensation device of the present invention and blower fan.
The idle method of replacing of the wind energy turbine set dynamic reactive compensation device that the present invention proposes and blower fan, it is characterized in that, the method comprises the following steps:
1) when regulating cycle (regulating cycle can configure according to actual conditions within the scope of 10 to 60 seconds) arrives, total current without work value, idle upwards controlled variable, downwards controlled variable of all wind-powered electricity generations can be obtained from fan monitoring system, be designated as Q respectively gen, Q gen_up, Q gen_down; Single blower fan Reactive-power control step-length (maximum permissible value of each Reactive-power control of single blower fan) is designated as Q gen_i; Blower fan number is designated as N;
If Q gen_up> Q gen_i* N, then the idle upwards controlled variable of blower fan is modified to: Q gen_up=Q gen_i* N;
If Q gen_down< (-1) * Q gen_i* N, then the idle downward controlled variable of blower fan is modified to: Q gen_down=(-1) * Q gen_i* N;
2) dynamic reactive compensation device is current is designated as Q without work value svc, dynamic reactive compensation device Reactive-power control step-length (maximum permissible value of each Reactive-power control of dynamic reactive compensation device) is designated as Q svc_i; Idle replacement amount is designated as Q set;
Idle replacement amount is determined according to dynamic reactive compensation device Reactive-power control step-length:
If Q svc> Q svc_i, then Q set=Q svc_i;
If Q svc< (-1) * Q svc_i, then Q is made set=(-1) * Q svc_i;
If (-1) * is Q svc_i≤ Q svc≤ Q svc_i, then Q is made set=Q svc;
3) according to wind-powered electricity generation idle upwards controlled variable Q gen_up, downward controlled variable Q gen_downcheck idle replacement amount Q set:
If Q set> Q gen_up, then Q is made set=Q gen_up;
If Q set< Q gen_down, then Q is made set=Q gen_down;
4) if Q svc=0, then go to step 1), show that dynamic reactive compensation device Reactive Power Margin has reached maximum, need not idle displacement be carried out;
If Q set=0, then go to step 1), show that dynamic reactive compensation device or blower fan do not have idle diadochy, cannot idle displacement be carried out;
If Q svcand Q setbe not 0, expression can carry out idle displacement, determines that the idle set point of dynamic reactive compensation device and single blower fan is as follows respectively:
The idle set point Q of dynamic reactive compensation device svc_set=Q svc-Q set;
The idle set point Q of every Fans gen_set=(Q gen+ Q set)/N.
The wind electric field blower installed capacity of the methods experiment application of the present embodiment is 49.5MW (33 1.5MW blower fans), dynamic reactive compensation device capacity is 10MVar, have employed the wind energy turbine set dynamic reactive compensation device of the present invention's proposition and the idle method of replacing of blower fan, regulating cycle is 30 seconds, and concrete adjustment process comprises the following steps:
1-1) (during 18 days 14 September in 2014 39 points 16 seconds, first regulating cycle) obtain total current without work value 0.5MVar, idle upwards controlled variable 4.45, downwards controlled variable-5.45 of all wind-powered electricity generations from fan monitoring system; Single blower fan Reactive-power control step-length is 0.05MVar, blower fan number 33;
Due to 4.45 > 0.05*33 (=1.65), blower fan is idle upwards controlled variable be modified to 1.65;
Due to-5.45 < (-1) * 0.05*33 (=-1.65), blower fan is idle, and downward controlled variable is modified to-1.65;
1-2) dynamic reactive compensation device is current without work value 2.3MVar, and dynamic reactive compensation device Reactive-power control step-length is 0.5MVar:
Due to 2.3 > 0.5, then idle replacement amount is 0.5MVar;
1-3) check idle replacement amount 0.5MVar, meet blower fan idle upwards controlled variable 1.65MVar, downwards controlled variable-1.65 simultaneously;
1-4) determine that the idle set point of dynamic reactive compensation device and single blower fan is as follows respectively:
The idle set point Q of dynamic reactive compensation device svc_set=2.3 – 0.5=1.8;
The idle set point Q of every Fans gen_set=(0.5+0.5)/33=0.03;
2-1) (during 18 days 14 September in 2014 39 points 46 seconds, second regulating cycle) obtain total current without work value 1.1MVar, idle upwards controlled variable 3.85, downwards controlled variable-6.05 of all wind-powered electricity generations from fan monitoring system;
Due to 3.85 > 0.05*33 (=1.65), blower fan is idle upwards controlled variable be modified to 1.65;
Due to-6.05 < (-1) * 0.05*33 (=-1.65), blower fan is idle, and downward controlled variable is modified to-1.65;
2-2) dynamic reactive compensation device is current without work value 1.8MVar, and dynamic reactive compensation device Reactive-power control step-length is 0.5MVar:
Due to 1.8 > 0.5, then idle replacement amount is 0.5MVar;
2-3) check idle replacement amount 0.5MVar, meet blower fan idle upwards controlled variable 1.65MVar, downwards controlled variable-1.65 simultaneously;
2-4) determine that the idle set point of dynamic reactive compensation device and single blower fan is as follows respectively:
The idle set point Q of dynamic reactive compensation device svc_set=1.8 – 0.5=1.3;
The idle set point Q of every Fans gen_set=(1.1+0.5)/33=0.05;
3-1) (during 18 days 14 September in 2014 40 points 16 seconds, the 3rd regulating cycle) obtain total current without work value 1.65MVar, idle upwards controlled variable 3.3, downwards controlled variable-6.6 of all wind-powered electricity generations from fan monitoring system;
Due to 3.3 > 0.05*33 (=1.65), blower fan is idle upwards controlled variable be modified to 1.65;
Due to-6.6 < (-1) * 0.05*33 (=-1.65), blower fan is idle, and downward controlled variable is modified to-1.65;
3-2) dynamic reactive compensation device is current without work value 1.3MVar, and dynamic reactive compensation device Reactive-power control step-length is 0.5MVar:
Due to 1.3 > 0.5, then idle replacement amount is 0.5MVar;
3-3) check idle replacement amount 0.5MVar, meet blower fan idle upwards controlled variable 1.65MVar, downwards controlled variable-1.65 simultaneously;
3-4) determine that the idle set point of dynamic reactive compensation device and single blower fan is as follows respectively:
The idle set point Q of dynamic reactive compensation device svc_set=1.3 – 0.5=0.8;
The idle set point Q of every Fans gen_set=(1.65+0.5)/33=0.065;
4-1) (during 18 days 14 September in 2014 40 points 46 seconds, the 4th regulating cycle) obtain total current without work value 2.1MVar, idle upwards controlled variable 2.85, downwards controlled variable-7.05 of all wind-powered electricity generations from fan monitoring system;
Due to 2.85 > 0.05*33 (=1.65), blower fan is idle upwards controlled variable be modified to 1.65;
Due to-7.05 < (-1) * 0.05*33 (=-1.65), blower fan is idle, and downward controlled variable is modified to-1.65;
4-2) dynamic reactive compensation device is current without work value 0.8MVar, and dynamic reactive compensation device Reactive-power control step-length is 0.5MVar:
Due to 0.8 > 0.5, then idle replacement amount is 0.5MVar;
4-3) check idle replacement amount 0.5MVar, meet blower fan idle upwards controlled variable 1.65MVar, downwards controlled variable-1.65 simultaneously;
4-4) determine that the idle set point of dynamic reactive compensation device and single blower fan is as follows respectively:
The idle set point Q of dynamic reactive compensation device svc_set=0.8 – 0.5=0.3;
The idle set point Q of every Fans gen_set=(2.1+0.5)/33=0.079;
5-1) (during 18 days 14 September in 2014 41 points 16 seconds, the 5th regulating cycle) obtain total current without work value 2.63MVar, idle upwards controlled variable 2.32, downwards controlled variable-7.58 of all wind-powered electricity generations from fan monitoring system;
Due to 2.32 > 0.05*33 (=1.65), blower fan is idle upwards controlled variable be modified to 1.65;
Due to-7.58 < (-1) * 0.05*33 (=-1.65), blower fan is idle, and downward controlled variable is modified to-1.65;
5-2) dynamic reactive compensation device is current without work value 0.3MVar, and dynamic reactive compensation device Reactive-power control step-length is 0.5MVar:
Due to-0.5 < 0.3 < 0.5, then idle replacement amount is 0.3MVar;
5-3) check idle replacement amount 0.5MVar, meet blower fan idle upwards controlled variable 1.65MVar, downwards controlled variable-1.65 simultaneously;
5-4) determine that the idle set point of dynamic reactive compensation device and single blower fan is as follows respectively:
The idle set point Q of dynamic reactive compensation device svc_set=0.3 – 0.3=0;
The idle set point Q of every Fans gen_set=(2.63+0.3)/33=0.089;
6) (during 18 days 14 September in 2014 41 points 46 seconds, 6th regulating cycle) dynamic reactive compensation device is current without work value 0MVar, do not need to carry out idle displacement, wait for that the 7th regulating cycle arrives, obtain total current without work value, idle upwards controlled variable, downwards controlled variable of all wind-powered electricity generations again, and carry out each step.
As can be seen from above-described embodiment, after have employed the wind energy turbine set dynamic reactive compensation device of the present invention's proposition and the idle method of replacing of blower fan, from perform idle Replacement Strategy to the idle output of dynamic reactive compensation device be 0 altogether spend time 2.5 minutes, each dynamic reactive compensation device Reactive-power control amount all≤0.5MVar, each blower fan Reactive-power control amount is about 0.01MVar, is less than the adjustment step-length of 0.05MVar.Because the idle amount regulated is all less at every turn, account for 5% and 1% of dynamic reactive compensation device rated capacity and blower fan rated capacity respectively, the four-wheel displacement wind farm grid-connected point voltage of conditioning period and blower fan set end voltage change all less, and overall adjustment effect is better.

Claims (1)

1. the idle method of replacing of wind energy turbine set dynamic reactive compensation device and blower fan, it is characterized in that, the method comprises the following steps:
1) when regulating cycle arrives, total current without work value, idle upwards controlled variable, downwards controlled variable of all wind-powered electricity generations can be obtained from fan monitoring system, be designated as Q respectively gen, Q gen_up, Q gen_down; Single blower fan Reactive-power control step-length is designated as Q gen_i; Blower fan number is designated as N;
If Q gen_up> Q gen_i* N, then the idle upwards controlled variable of blower fan is modified to: Q gen_up=Q gen_i* N;
If Q gen_down< (-1) * Q gen_i* N, then the idle downward controlled variable of blower fan is modified to: Q gen_down=(-1) * Q gen_i* N;
2) dynamic reactive compensation device is current is designated as Q without work value svc, dynamic reactive compensation device Reactive-power control step-length is designated as Q svc_i; Idle replacement amount is designated as Q set;
Idle replacement amount is determined according to dynamic reactive compensation device Reactive-power control step-length:
If Q svc> Q svc_i, then Q set=Q svc_i;
If Q svc< (-1) * Q svc_i, then Q is made set=(-1) * Q svc_i;
If (-1) * is Q svc_i≤ Q svc≤ Q svc_i, then Q is made set=Q svc;
3) according to wind-powered electricity generation idle upwards controlled variable Q gen_up, downward controlled variable Q gen_downcheck idle replacement amount Q set:
If Q set> Q gen_up, then Q is made set=Q gen_up;
If Q set< Q gen_down, then Q is made set=Q gen_down;
4) if Q svc=0 or Q set=0, then go to step 1);
If Q svcand Q setbe not all 0, determine that the idle set point of dynamic reactive compensation device and single blower fan is as follows respectively:
The idle set point Q of dynamic reactive compensation device svc_set=Q svc-Q set;
The idle set point Q of every Fans gen_set=(Q gen+ Q set)/N.
CN201410579127.3A 2014-10-26 2014-10-26 The idle method of replacing of wind energy turbine set dynamic reactive compensation device and blower fan Active CN104300547B (en)

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CN105262099A (en) * 2015-10-29 2016-01-20 海南电网有限责任公司 Method for adjusting voltage of wind farm through coordination and cooperation of blower fan and voltage-adjustable reactive compensator
CN105529719A (en) * 2015-11-23 2016-04-27 国家电网公司 Adjusting method based on comprehensive considering of voltage and reactive power for SVG (Static Var generator) of wind power plant
CN106410814A (en) * 2016-05-20 2017-02-15 中国大唐集团科学技术研究院有限公司华东分公司 Method of adjusting voltage of station service working bus of power plant through synchronous motor

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CN102646984A (en) * 2012-05-18 2012-08-22 重庆市电力公司綦南供电局 Method and system for realizing real-time automatic compensation of voltage and reactive power of substation
CN102769292A (en) * 2012-07-02 2012-11-07 清华大学 Method for enhancing voltage safety margin of wind farm
KR101423212B1 (en) * 2014-05-22 2014-07-24 전북대학교산학협력단 Voltage control system and method at the point of common coupling of wind power plant

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EP2273646A2 (en) * 1999-09-13 2011-01-12 Aloys Wobben Method for reactive power compensation and apparatus for power generation in an electricity grid
JP2001268805A (en) * 2000-03-22 2001-09-28 Ngk Insulators Ltd Power factor constant control method of reactive power compensation device
CN102646984A (en) * 2012-05-18 2012-08-22 重庆市电力公司綦南供电局 Method and system for realizing real-time automatic compensation of voltage and reactive power of substation
CN102769292A (en) * 2012-07-02 2012-11-07 清华大学 Method for enhancing voltage safety margin of wind farm
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Publication number Priority date Publication date Assignee Title
CN105262099A (en) * 2015-10-29 2016-01-20 海南电网有限责任公司 Method for adjusting voltage of wind farm through coordination and cooperation of blower fan and voltage-adjustable reactive compensator
CN105529719A (en) * 2015-11-23 2016-04-27 国家电网公司 Adjusting method based on comprehensive considering of voltage and reactive power for SVG (Static Var generator) of wind power plant
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CN106410814A (en) * 2016-05-20 2017-02-15 中国大唐集团科学技术研究院有限公司华东分公司 Method of adjusting voltage of station service working bus of power plant through synchronous motor
CN106410814B (en) * 2016-05-20 2019-02-12 中国大唐集团科学技术研究院有限公司华东分公司 The method for adjusting power plant work busbar voltage by synchronous motor

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