模块化多级STATCOM与能量存储

C. Bharadwaj, S. Maiti
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引用次数: 6

摘要

提出了一种集成STATCOM的储能系统结构。这类系统在文献中一般称为E-STATCOM (STATCOM+ES)。本文采用模块化多电平变换器(MMC)作为STATCOM,并在MMC的直流链路上集成储能。E-STATCOM的主要功能是STATCOM,但它具有支持不同时间尺度有功功率的能力。因此,可以避免单独的系统,一个用于储能集成,另一个用于STATCOM操作。在本文中,E-STATCOM用于解决与光伏发电为主的电网相关的问题,例如由于太阳辐照度变化引起的功率波动和电能质量问题。通过PSCAD的仿真验证了该配置,结果表明了E-STATCOM在光伏主导电网中的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Modular multilevel STATCOM with energy storage
A configuration of Energy storage (ES) integrated STATCOM is presented in this paper. Such type of system is generally referred as E-STATCOM (STATCOM+ES) in the literature. In this paper, a Modular Multilevel Converter (MMC) is used as a STATCOM and energy storage is integrated at the DC link of MMC. An E-STATCOM primarily functions as a STATCOM, but it has the ability to support active power at different time scale. So, separate systems, one for energy storage integration and the other for STATCOM operation can be avoided. In this paper, E-STATCOM is used to address the issues related to a PV dominated grid, e.g. power fluctuation due to variation of solar irradiance and power quality issues. The configuration is verified through simulation in PSCAD and the results show effectiveness of E-STATCOM for a PV-dominated grid.
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