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首页> 外文期刊>Mathematics and computers in simulation >Grid connected converters as reactive power ancillary service providers: Technical analysis for minimum required DC-link voltage
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Grid connected converters as reactive power ancillary service providers: Technical analysis for minimum required DC-link voltage

机译：电网连接的变频器作为无功功率辅助服务提供商：最小所需直流母线电压的技术分析

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摘要

Providing solutions for reactive power compensation next to reactive loads is beneficial for the efficiency of the overall grid system. The main reactive power compensation solutions are based on passive VAR generators (like capacitor banks) or active VAR generators (like static VAR generators). Extra use of VAR generators can be avoided by providing reactive power through renewable energy systems or loads, which are connected to the grid through Grid connected Converters (GcCs). In fact, GcCs can be controlled so that, in addition to their main control task, they realize an additional reactive power ancillary service. In this context, this paper investigates the achievement of reactive power ancillary service using three-phase GcCs and presents a detailed analysis regarding the determination of the minimal required DC-link voltage level for proper operation of GcCs as reactive power ancillary service providers. This analysis is done under both steady-state and transient conditions. Several simulation and experimental results are presented to confirm the validity of the obtained analytical results. (C) 2018 International Association for Mathematics and Computers in Simulation (IMACS). Published by Elsevier B.V. All rights reserved.
机译：在无功负载之后提供无功功率补偿解决方案对于整个电网系统的效率是有益的。主要的无功功率补偿解决方案基于无源VAR发电机（如电容器组）或有源VAR发电机（如静态VAR发电机）。通过可再生能源系统或负载（通过并网转换器（GcC）连接到电网）提供无功功率，可以避免无功发电机的额外使用。实际上，可以对GcC进行控制，以便除了其主要控制任务外，还可以实现附加的无功辅助服务。在这种情况下，本文研究了使用三相GcC的无功辅助服务的实现，并对确定GcC作为无功辅助服务提供商正常运行所需的最小直流母线电压水平的确定进行了详细分析。该分析是在稳态和瞬态条件下进行的。提出了一些模拟和实验结果，以确认所获得的分析结果的有效性。 （C）2018国际模拟数学与计算机协会（IMACS）。由Elsevier B.V.发布。保留所有权利。

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