T/CES 025-2018 Wind power plant automatic voltage control (AVC) system performance testing technical specification

Scope

Scope: This standard specifies the content of performance testing, testing conditions, testing methods, and evaluation of test results for automatic voltage control systems (AVC) in wind farms. This standard applies to the performance testing of automatic voltage control systems (AVC) in new or expanded wind farms connected to power systems at voltage levels of 110 kV (66 kV) and above. For the performance testing of automatic voltage control systems (AVC) in wind farms connected to power systems at other voltage levels, the standard can be used as a reference for implementation. Main technical content: Currently, many grid companies and provincial grid companies in China have built automatic voltage control systems (AVC) in wind farms, but there are no relevant standards for performance testing of AVC systems in wind farms. Due to differences in functional requirements and technical concepts among different completion units and manufacturers, these AVC systems vary greatly in technical routes, functional systems, and implementation plans. Therefore, it is urgent to standardize the performance testing technology of AVC systems in wind farms to ensure their supporting role in grid operation and the safe operation of wind farms. The standard is developed based on the functional requirements of AVC systems in wind farms. The performance of these AVC systems must meet certain technical requirements, and the performance testing norms for these technical requirements generally include the following elements: (1) Specification of testing conditions. (2) Specification of testing items. (3) Specification of testing methods and evaluation of test results. The starting point and basic principle of this standard are to ensure the safe, stable, and high-quality operation of the grid and wind farms, while making the provisions as practical as possible, easy to understand, cite, and implement. This standard specifies the content of performance testing, testing conditions, testing

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