基于电压调节的分布式可再生能源发电功率波动平抑策略

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摘要接入配电网的分布式可再生能源受自然条件影响,其输出功率随机波动,进而影响全系统运行。针对分布式可再生能源发电的特点和用户负荷特性,提出了一种基于电压调节的功率波动平抑方法,通过适当调整系统电压来改变负荷水平,利用负荷变化追踪电源出力,从而减小其波动对电网的影响。对简化配电系统和IEEE 13节点测试馈线系统仿真的结果表明,通过电压调节,用户负荷能够有效平抑光伏和风力发电机的出力波动,验证了所提方法的可靠性。

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	李晓东
	刘广一
	贾宏杰
	杨占勇
	范士雄

关键词 ：分布式可再生能源发电, 负荷特性, 电压调节, 波动平抑

Abstract：Distributed renewable energies in the distribution network are influenced by natural conditions.And the corresponding probabilistic output power affects the whole system operation.According to the features of the distributed renewable energy generations and load characteristics,this paper presents a method for mitigation of power fluctuations based on voltage regulation.It can change the load by adjusting the system voltage and utilize the load change to track the output power of the generation.In this way,it reduces the effect of the fluctuation on the power grid.The simulation results of a simplified distribution system and the IEEE 13 nodes test feeder show that,by voltage regulation,residential loads can mitigate output power fluctuations of photovoltaic cells and wind turbines effectively.The results verify the effectiveness of the proposed method.

Key words： Distributed renewable energy generation load characteristics voltage regulation fluctuation mitigation

收稿日期: 2015-05-28 出版日期: 2015-12-18

PACS:	TM61
	TM71

基金资助:国家电网公司科技项目(DZB17201200260)、国家高技术研究发展(863)计划项目(2014AA051901)和国家自然科学基金(51261130472)资助。

通讯作者: 刘广一男,1963年生,博士,教授级高级工程师,研究方向为智能电网、分布式能源管理和控制技术、能量管理系统、电力市场等。

作者简介: 李晓东男,1989年生,硕士,研究方向为智能配电网下的电压无功控制

引用本文:

李晓东, 刘广一, 贾宏杰, 杨占勇, 范士雄. 基于电压调节的分布式可再生能源发电功率波动平抑策略[J]. 电工技术学报, 2015, 30(23): 76-82. Li Xiaodong, Liu Guangyi, Jia Hongjie, Yang Zhanyong, Fan Shixiong. Mitigation of Output Power Fluctuations for Distributed Renewable Energy Generation Based on Voltage Regulation. Transactions of China Electrotechnical Society, 2015, 30(23): 76-82.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2015/V30/I23/76

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