CN203224584U - Wind power farm static reactive compensation generator associated performance detection system - Google Patents

Wind power farm static reactive compensation generator associated performance detection system Download PDF

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CN203224584U
CN203224584U CN201320184646.0U CN201320184646U CN203224584U CN 203224584 U CN203224584 U CN 203224584U CN 201320184646 U CN201320184646 U CN 201320184646U CN 203224584 U CN203224584 U CN 203224584U
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transformer
current transformer
reactive power
secondary side
quality
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雷达
王金浩
徐龙
肖莹
杨超颖
弭勇
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State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Shanxi Electric Power Co Ltd
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State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Shanxi Electric Power Co Ltd
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    • Y02E40/30Reactive power compensation

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Abstract

The utility model discloses a wind power farm static reactive compensation generator associated performance detection system, for solving the problem that it is difficult to detect associated performance between wind power farms. The wind power farm static reactive compensation generator associated performance detection system comprises a voltage transformer (4), two reactive generators and a capacitive reactive compensator (11) which are respectively arranged on a 35kV bus (1), wherein an A phase of a secondary side of a low-voltage side current transformer (2) of a main transformer (3) of the wind power farm is electrically connected with a current input terminal of a first detection channel of a power quality on-line monitor (12), an A phase of a secondary side of a current transformer (5) of a first reactive generator is electrically connected with a current input terminal of a second detection channel of the power quality on-line monitor (12), an A phase of a secondary side of a current transformer (7) of a second reactive generator is electrically connected with an input terminal of a third detection channel of the power quality on-line monitor (12), so as to detect the associated performance level between the two sets of reactive generators.

Description

风电场静止式无功补偿发生器关联性能检测系统Wind Farm Static Var Compensation Generator Correlation Performance Detection System

技术领域 technical field

 本实用新型涉及一种验证适用于风电场的两套静止式无功补偿发生器之间关联性能的检测系统。 The utility model relates to a detection system for verifying the correlation performance between two sets of static reactive power compensation generators suitable for wind farms.

背景技术 Background technique

为了有效降低风电场接入电网系统所带来的负面影响,单纯靠风力发电机组不能满足系统电压调节的需要,而将无功发生器配置在风电场能够解决风电场接入电网后所带来的诸多不良影响。由于无功发生器设计原理使其的最大容量受到限制,单台发生器有时无法满足大型风电场对无功配置的要求,需要两套甚至更多的无功发生器共同作用才能满足无功配置要求。而在两套无功发生器共同运行时,如果缺乏协调控制,可能会出现过度补偿从而导致系统电压越限,或者两套装置之间无功相互抵消,以至于达不到控制功率因数的目的,进而影响风电场的稳定运行。所以,急需一种检测系统能对两套无功发生器的关联性能进行检测。 In order to effectively reduce the negative impact brought by the wind farm's access to the grid system, relying solely on wind turbines cannot meet the needs of system voltage regulation, and deploying reactive power generators in the wind farm can solve the problems caused by the wind farm's access to the grid. many adverse effects. Due to the design principle of reactive power generators, the maximum capacity is limited, and sometimes a single generator cannot meet the requirements of large-scale wind farms for reactive power configuration. Two or more sets of reactive power generators are required to work together to meet the reactive power configuration. Require. However, when two sets of reactive power generators operate together, if there is a lack of coordinated control, overcompensation may occur, causing the system voltage to exceed the limit, or the reactive power between the two sets of devices cancels each other out, so that the purpose of controlling the power factor cannot be achieved. , thereby affecting the stable operation of the wind farm. Therefore, there is an urgent need for a detection system that can detect the correlation performance of the two sets of reactive power generators.

发明内容 Contents of the invention

 本实用新型提供了一种风电场静止式无功补偿发生器关联性能检测系统,用来验证两套无功发生器之间关联性能,解决了检测风电场之间关联性能困难的问题。 The utility model provides a wind farm static reactive power compensation generator correlation performance detection system, which is used to verify the correlation performance between two sets of reactive power generators, and solves the problem of difficulty in detecting the correlation performance between wind farms.

本实用新型是通过以下技术方案解决以上技术问题的: The utility model solves the above technical problems through the following technical solutions:

一种风电场静止式无功补偿发生器关联性能检测系统,包括35kV母线、风电场主变压器、电能质量在线监测仪,在35kV母线上分别电安装有电压互感器、第一无功发生器、第二无功发生器以及容性无功补偿器,在母线与容性无功补偿器之间设置有断路器和电流互感器,第一无功发生器上设置有电流互感器,第二无功发生器上安装有电流互感器。主变压器的低压侧电流互感器的二次侧A相与电能质量在线监测仪第一检测通道的电流输入端子电连接,第一无功发生器电流互感器的二次侧A相与电能质量在线监测仪的第二检测通道的电流输入端子电连接,第二无功发生器电流互感器的二次侧A相与电能质量在线监测仪的第三检测通道的输入端子电连接,容性无功补偿器的电流互感器的二次侧A相与电能质量在线监测仪第四检测通道的电流输入端子电连接。 A wind farm static reactive power compensation generator correlation performance detection system, including a 35kV bus, a wind farm main transformer, and an online power quality monitor. A voltage transformer, a first reactive power generator, and a 35kV bus are respectively electrically installed on the 35kV bus. The second reactive power generator and the capacitive reactive power compensator are provided with a circuit breaker and a current transformer between the bus bar and the capacitive reactive power compensator, the first reactive power generator is provided with a current transformer, and the second reactive power generator is provided with a current transformer A current transformer is installed on the power generator. The secondary side A phase of the low-voltage side current transformer of the main transformer is electrically connected to the current input terminal of the first detection channel of the power quality on-line monitor, and the secondary side A phase of the first reactive power generator current transformer is connected to the power quality online The current input terminal of the second detection channel of the monitor is electrically connected, the secondary side A phase of the current transformer of the second reactive power generator is electrically connected with the input terminal of the third detection channel of the power quality on-line monitor, and the capacitive reactive power The phase A of the secondary side of the current transformer of the compensator is electrically connected to the current input terminal of the fourth detection channel of the power quality on-line monitor.

将电能质量在线监测仪的四个电压检测通道输入端子并联,主变压器上的电压互感器的二次侧A相与并联后的电能质量在线监测仪的电压检测通道输入端子电连接。 The four voltage detection channel input terminals of the power quality online monitor are connected in parallel, and the secondary side A phase of the voltage transformer on the main transformer is electrically connected with the voltage detection channel input terminals of the parallel connected power quality online monitor.

本实用新型利用大容量容性无功补偿器的投切所产生的无功扰动,通过电能质量在线监测仪可以直观的显示出两套无功发生器各自的无功补偿实时状况,从而检测出两套无功发生器之间的关联性能水平,检测系统所得检测数据真实可靠。 The utility model utilizes the reactive power disturbance generated by the switching of the large-capacity reactive power compensator, and can intuitively display the real-time status of the reactive power compensation of the two sets of reactive power generators through the power quality online monitor, thereby detecting The correlation performance level between the two sets of reactive power generators, and the detection data obtained by the detection system are true and reliable.

附图说明 Description of drawings

图1是本实用新型的检测电路的结构示意图。 Fig. 1 is a schematic structural diagram of the detection circuit of the present invention.

具体实施方式 Detailed ways

一种风电场静止式无功补偿发生器关联性能检测系统,包括35kV母线1、风电场主变压器3、电能质量在线监测仪12,在母线1上分别电安装有电压互感器4、第一无功发生器6、第二无功发生器8以及容性无功补偿器11,在母线1与容性无功补偿器11之间设置有断路器10和电流互感器9,第一无功发生器6上设置有电流互感器5,第二无功发生器8上安装有电流互感器7。主变压器3的低压侧电流互感器2的二次侧A相与电能质量在线监测仪12第一检测通道的电流输入端子电连接,第一无功发生器电流互感器5的二次侧A相与电能质量在线监测仪12的第二检测通道的电流输入端子电连接,第二无功发生器电流互感器7的二次侧A相与电能质量在线监测仪12的第三检测通道的输入端子电连接,容性无功补偿器11的电流互感器9的二次侧A相与电能质量在线监测仪12第四检测通道的电流输入端子电连接。将电能质量在线监测仪12的四个电压检测通道输入端子并联,主变压器3电压互感器2的二次侧A相与并联后的电能质量在线监测仪12的电压检测通道输入端子电连接。 A wind farm static reactive power compensation generator correlation performance detection system, including a 35kV bus 1, a wind farm main transformer 3, an online power quality monitor 12, and a voltage transformer 4, a first wireless power generator 6, the second reactive power generator 8 and a capacitive reactive power compensator 11, a circuit breaker 10 and a current transformer 9 are arranged between the bus bar 1 and the capacitive reactive power compensator 11, and the first reactive power generator A current transformer 5 is installed on the generator 6, and a current transformer 7 is installed on the second reactive power generator 8. The secondary side A phase of the low-voltage side current transformer 2 of the main transformer 3 is electrically connected to the current input terminal of the first detection channel of the power quality online monitor 12, and the secondary side A phase of the first reactive power generator current transformer 5 It is electrically connected to the current input terminal of the second detection channel of the power quality on-line monitor 12, and the secondary side A phase of the second reactive power generator current transformer 7 is connected to the input terminal of the third detection channel of the power quality on-line monitor 12 Electrically connected, the secondary side A phase of the current transformer 9 of the capacitive reactive power compensator 11 is electrically connected to the current input terminal of the fourth detection channel of the power quality on-line monitor 12 . The four voltage detection channel input terminals of the online power quality monitor 12 are connected in parallel, and the secondary side A phase of the voltage transformer 2 of the main transformer 3 is electrically connected with the voltage detection channel input terminals of the parallel connected power quality online monitor 12 .

一种风电场静止式无功补偿发生器关联性能检测系统的检测步骤包括: The detection steps of a wind farm static var compensation generator correlation performance detection system include:

第一步、第一无功发生器6上设置有电流互感器5,第二无功发生器8上安装有电流互感器7。主变压器3的低压侧电流互感器2的二次侧A相与电能质量在线监测仪12第一检测通道的电流输入端子电连接,第一无功发生器电流互感器5的二次侧A相与电能质量在线监测仪12的第二检测通道的电流输入端子电连接,第二无功发生器电流互感器7的二次侧A相与电能质量在线监测仪12的第三检测通道的输入端子电连接,容性无功补偿器11的电流互感器9的二次侧A相与电能质量在线监测仪12第四检测通道的电流输入端子电连接。将电能质量在线监测仪12的四个电压检测通道输入端子并联,主变压器3电压互感器2的二次侧A相与并联后的电能质量在线监测仪12的电压检测通道输入端子电连接。 In the first step, a current transformer 5 is installed on the first reactive power generator 6 , and a current transformer 7 is installed on the second reactive power generator 8 . The secondary side A phase of the low-voltage side current transformer 2 of the main transformer 3 is electrically connected to the current input terminal of the first detection channel of the power quality online monitor 12, and the secondary side A phase of the first reactive power generator current transformer 5 It is electrically connected to the current input terminal of the second detection channel of the power quality on-line monitor 12, and the secondary side A phase of the second reactive power generator current transformer 7 is connected to the input terminal of the third detection channel of the power quality on-line monitor 12 Electrically connected, the secondary side A phase of the current transformer 9 of the capacitive reactive power compensator 11 is electrically connected to the current input terminal of the fourth detection channel of the power quality on-line monitor 12 . The four voltage detection channel input terminals of the online power quality monitor 12 are connected in parallel, and the secondary side A phase of the voltage transformer 2 of the main transformer 3 is electrically connected with the voltage detection channel input terminals of the parallel connected power quality online monitor 12 .

第二步、检查接线无误后,断开断路器10,观察电能质量在线监测仪上显示的主变压器低压侧无功数据是否不超过1兆乏,第一无功发生器和第二无功发生器的补偿无功容量相差不超过零点五兆乏,且无功极性都为容性。若满足上述要求说明两套无功发生器在无功瞬时大量减少时的关联性良好。 Step 2: After checking that the wiring is correct, disconnect the circuit breaker 10, and observe whether the reactive power data on the low-voltage side of the main transformer displayed on the power quality online monitor does not exceed 1 megavar, the first reactive power generator and the second reactive power generator The difference between the compensation reactive capacity of the transformer is not more than 0.5 megavar, and the polarity of the reactive power is capacitive. If the above requirements are met, it means that the correlation between the two sets of reactive power generators is good when the reactive power is greatly reduced instantaneously.

第三步、闭合断路器10以接通容性无功补偿器11,观察电能质量在线监测仪上显示的主变压器低压侧无功数据是否不超过1兆乏,第一无功发生器和第二无功发生器的补偿无功容量是否相差不超过零点五兆乏,且无功极性都为感性无功。若满足上述要求说明两套无功发生器在无功瞬时增加时的关联性良好。 The third step is to close the circuit breaker 10 to connect the capacitive reactive power compensator 11, and observe whether the reactive power data of the main transformer low-voltage side displayed on the power quality online monitor does not exceed 1 megavar, the first reactive power generator and the second reactive power generator Whether the compensation reactive capacity of the two reactive power generators differs no more than 0.5 megavar, and the reactive power polarity is inductive reactive. If the above requirements are met, it means that the correlation between the two sets of reactive power generators is good when the reactive power increases instantaneously.

本装置及方法是基于常规电能质量测试仪器,接线形式简单,测试结果直观准确。 The device and method are based on conventional power quality testing instruments, the wiring form is simple, and the test results are intuitive and accurate.

Claims (2)

1. the related performance detecting system of a wind energy turbine set state type reactive-load compensation generator, comprise 35kV bus (1), wind energy turbine set main-transformer (3), quality of power supply on-line monitoring instrument (12), it is characterized in that, be respectively arranged with voltage transformer (VT) (4) at 35kV bus (1), first reacance generator (6), second reacance generator (8) and capacitive reactive power compensator (11), between bus (1) and capacitive reactive power compensator (11), be provided with isolating switch (10) summation current transformer (9), first reacance generator (6) is provided with current transformer (5), second reacance generator (8) is provided with current transformer (7), the secondary side A of the low-pressure side current transformer (2) of wind energy turbine set main-transformer (3) is electrically connected with the current input terminal of first sense channel of quality of power supply on-line monitoring instrument (12), the secondary side A of the first reacance generator current transformer (5) is electrically connected with current input terminal of second sense channel of quality of power supply on-line monitoring instrument (12), the secondary side A of the second reacance generator current transformer (7) is electrically connected with the input terminal of the 3rd sense channel of quality of power supply on-line monitoring instrument (12), and the secondary side A of the current transformer (9) of capacitive reactive power compensator (11) is electrically connected with the current input terminal of the 4th sense channel of quality of power supply on-line monitoring instrument (12).
2. the related performance detecting system of a kind of wind energy turbine set state type reactive-load compensation generator according to claim 1, it is characterized in that, four voltage detecting passage input terminals of quality of power supply on-line monitoring instrument (12) are in parallel, and the secondary side A of the voltage transformer (VT) (2) on the wind energy turbine set main-transformer (3) links together with four voltage detecting passage input terminals of quality of power supply on-line monitoring instrument (12).
CN201320184646.0U 2013-04-12 2013-04-12 Wind power farm static reactive compensation generator associated performance detection system Expired - Lifetime CN203224584U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103558472A (en) * 2013-11-07 2014-02-05 国家电网公司 Method for detecting coordinated operation performance of dynamic reactive power compensation devices in same wind power plant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103558472A (en) * 2013-11-07 2014-02-05 国家电网公司 Method for detecting coordinated operation performance of dynamic reactive power compensation devices in same wind power plant

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