中国电力 ›› 2016, Vol. 49 ›› Issue (2): 118-121.DOI: 10.11930/j.issn.1004-9649.2016.02.118.04

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一种适用于高电压等级的MMC子模块均压算法

俎立峰,胡四全,吉攀攀,李坤,冯敏,马俊杰   

  1. 许继集团有限公司,河南 许昌 461000
  • 收稿日期:2015-10-21 修回日期:2016-03-21 出版日期:2016-02-18 发布日期:2016-03-21
  • 作者简介:俎立峰(1984-),男,河北邯郸人,工程师,从事柔性直流输电换流阀控制技术。E-mail: zulifeng@hotmail.com

A High Voltage Level MMC Submodule Equalization Algorithm

ZU Lifeng, HU Siquan, JI Panpan, LI Kun, FENG Min, MA Junjie   

  1. XUJI Group Corporation, Xuchang 461000, China
  • Received:2015-10-21 Revised:2016-03-21 Online:2016-02-18 Published:2016-03-21

摘要: 子模块电容电压的稳定对MMC稳定运行至关重要。随着MMC电压等级提高,子模块数量逐步增大,传统排序均压算法难以满足控制要求。针对这种情况,提出一种适用于高电压等级的子模块电容电压分组的均压控制算法,所耗资源和时间大大减少,并且能够达到与排序均压相同的均压效果,减轻了阀控系统的设计难度,提高系统可靠性。

关键词: 柔性直流输电, 均压控制, 电压分组, FPGA

Abstract: Capacitance voltage stabilizer module is essential for MMC operation stability. With large number of sub-modules caused by voltage rating increase, traditional sorting algorithms cannot meet control requirements. A capacitor voltage sub-module packet equalizing control algorithm suitable for high voltage level is proposed. The algorithm can greatly reduce resource consumption and calculation time with the same result as traditional method. It also simplifies the valve system design complexity and improve system reliability.

Key words: HVDC flexible, equalizing control, voltage grouping, FPGA

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