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 PDFInfo
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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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Abstract
Description
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
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
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
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
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.
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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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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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