Wind power plant static var generator (SVG) response time test system of with voltage dividing regulating device

Abstract

The invention relates to the technical field of power systems, in particular to a wind power plant static var generator (SVG) response time test system with a voltage dividing regulating device.The system can test time of reactive response which is sent by a wind power plant SVG due to the fact that a grid connection point which the wind power plant SVG tracks and compensates for is reactive or is subject to voltage changes.The wind power plant SVG response time test system comprises the voltage dividing regulating device and a data collection system.The voltage dividing regulating device is in series connection between the grid connection point and a SVG voltage collecting system.The data collection system collects an output voltage of the voltage dividing regulating device and a SVG outlet current.According to the wind power plant SVG response time test system with the voltage dividing regulating device, a method does not need to generate artificial disturbance in a wind power plant primary system, corresponding operating risks are avoided, a band carrier running line does not need to be removed, and the damage to a running wind turbine generator caused by voltage loss shutdown is avoided.

Description

technical field [0001] The present invention relates to the technical field of electric power systems, in particular to a wind farm SVG (static var generator, hereinafter referred to as SVG) response time test system using a voltage divider adjustment device, which can test the wind farm SVG due to its parallel tracking and compensation Response time for reactive power generated by grid points or voltage changes. Background technique [0002] At present, the method of testing the response time of SVG in wind farms is to apply a certain amount of reactive power to the primary system, so that the reactive power or voltage at the grid-connected point produces step fluctuations, so as to test the response time and dynamic adjustment time of the SVG. The methods for generating disturbances include switching However, some wind farms that use SVG do not have additional capacitor banks, and the method of switching on-load lines at the same time will have a negative impact on the win...

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Problems solved by technology

[0002] At present, the method of testing the response time of SVG in wind farms is to apply a certain amount of reactive power to the primary system, so that the reactive power or voltage at the grid-connected point produces step fluctuations, so as to test the response time and dynamic adjustment time of the SVG. The methods for generating disturbances include switching However, some wind farms that use SVG do not have additional capacitor banks, and the method of switching on-load lines at the same time will have a negative impact on the wind turbines and cause losses. Therefore, for such Wind farms should use voltage divider regulators to carry out SVG response time tests

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