分布式电源变流器控制策略
摘要:随着新能源的广泛接入以及智能微电网技术的发展，分布式电源变流器控制策略对提升微电网的稳定运行水平以及促进新能源消纳具有重要影响，为此，对该领域研究方法、成果和发展方向进行了述评。分别介绍了分布式电源变流器的底层调制策略、电网非平衡工况下的控制策略、DC/DC策略、DC/AC策略以及电能质量的附加控制策略；研究了各控制策略算法的技术特点、有效性及适用范围。基于文献研究，论述了当前的热点研究方向：结合现代控制理论，改善DC/DC变换的控制精度和响应速度；利用优化的恒功率控制策略、下垂控制策略等，提升微网稳定性与经济性；在变流器控制策略中抑制三相不平衡和谐波的策略，优化电能质量。最后，展望了变流器控制策略在降低能耗、提升系统稳定水平、提高电能转换效率等方面的发展方向和前景。
Abstract：With the wide access of new energy and the development of smart micro grid technology, distributed generation converter control strategy has an important impact on improving the stable operation level of micro grid and promoting the consumption of new energy. The research methods, achievements and development directions in this field are reviewed. The basic modulation strategy of distributed generation converter, control strategy under unbalance power grid, DC/DC strategy, DC/AC strategy and additional control strategy of power quality are summarized. The technical characteristics, validity and application range of each control strategy algorithm are studied. Based on the review research, this paper discusses the current hot research directions: combining the modern control theory, improving the control accuracy and response speed of DC/DC transformation; Constant power control strategy and droop control strategy are optimized to improve the stability and economy of micro grid; In the converter control strategy to suppress the three-phase unbalance and harmonic strategy, optimize the power quality. Finally, the development direction and prospect of converter control strategy in reducing energy consumption, improving system stability and improving energy conversion efficiency are prospected.
标题：分布式电源变流器控制策略
title:Distributed Generation Converter Control Strategy
作者：翁志鹏,宋晓通
authors:WENG Zhipeng,SONG Xiaotong
关键词：变流器,非平衡工况,电能质量,谐波,三相不平衡,
keywords:converter,unbalance condition,power quality,harmonic,three-phase unbalance,
发表日期：2019-05-05
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- 1.12 MB
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