Mobile wind turbine generator system high-low voltage ride through test device

Abstract

The invention provides a mobile wind turbine generator system high-low voltage ride through test device, which is applicable to high-voltage system tests and low-voltage system tests simultaneously, the test device is connected in series between a wind turbine generator system and a power network, and mainly comprises an input breaker, a voltage regulation unit, a bypass breaker and an output breaker. By adopting a transformer secondary side multi-tap voltage regulation mode, for thyristor high-speed switching control as well as a vehicle-mounted container structure, transformer output voltage is changed through controlling the on-ff of a thyristor, and thus a simulation test of different voltage class failures of a wind turbine generator system to be tested is achieved. By using the mobile wind turbine generator system high-low voltage ride through test device provided by the invention, high-low voltage ride through tests can be accomplished simultaneously, and the device has high integration, high reliability and highest economic and technical norms; the device can be applied to testing various types of wind generators, meet high-low voltage ride through test criteria in China as well as countries in Europe and America, and has a wide application range; and the device adopts a vehicle-mounted container structure, adopts a modular design, is convenient to transport and is flexible in testing.

Description

technical field [0001] The invention belongs to the technical field of renewable energy grid-connected testing, and in particular relates to a mobile wind turbine high-voltage ride-through test device capable of simultaneously realizing high-voltage ride-through and low-voltage ride-through capability tests of the wind turbine. Background technique [0002] As a clean and renewable energy in the development of low-carbon economy, wind energy has been paid more and more attention by countries all over the world. Wind power technology is becoming increasingly mature and its application scale is increasing. The development of renewable energy represented by wind power has become a long-term strategy for countries all over the world to cope with the pressure of future energy security and climate change. China has a huge potential for developing wind energy, with a total of 700 million to 1.2 billion kilowatts on land and at sea. Wind power will become an important part of China...

AI Technical Summary

Problems solved by technology

[0009] However, due to the lack of domestic testing and testing methods, there are currently few high- and low-voltage ride-through test devices that match the technical standards, especially high-voltage ride-through test devices. The main test equipment relies on imports, and it is difficult for the grid-connected acceptance of wind farms. Providing effective technical support also seriously restricts the healthy and orderly development of China's wind power industry

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