| 引用本文: | 吴亮,刘庆楷,唐,等.微电网二次频率/电压控制器的反馈线性化设计及分布式实现[J].电力系统保护与控制,2019,47(14):79-86.[点击复制] |
| WU Liang,LIU Qingkai,TANG Chong,et al.Design of secondary frequency/voltage controller with feedback linearization and distributed implemention in microgrids[J].Power System Protection and Control,2019,47(14):79-86[点击复制] |
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| 微电网二次频率/电压控制器的反馈线性化设计及分布式实现 |
| 吴亮,刘庆楷,唐,刘明波 |
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| (广州环保投资集团有限公司，广东 广州 510330;华南理工大学电力学院，广东 广州 510640) |
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| 摘要: |
| 针对以微型同步发电机组为二次控制主体的微电网，提出了一种在孤岛运行模式下的二次频率/电压分布式控制策略。首先，利用反馈线性化方法，设计了一种适用于微型同步发电机的二次频率/电压控制器，可消除由于微型同步发电机组一次控制导致的系统频率与电压偏差。其次，基于多代理系统理论，提出了一种分布式控制策略。所提出的频率/电压控制器只需要交换在通信有向图上的邻居节点频率/电压信息，不依赖中央控制器和复杂通信网络，提高了微电网的可靠性，同时可实现微型同步发电机有功出力按额定比分配。最后，在某一实际的微电网上验证了提出的二次控制策略的有效性。 |
| 关键词: 孤岛微电网 频率/电压二次控制 反馈线性化 分布式控制 |
| DOI：10.7667/PSPC20191410 |
| 投稿时间：2018-08-14修订日期：2018-09-29 |
| 基金项目:国家重点基础研究发展计划(973计划)(2013CB 228205) |
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| Design of secondary frequency/voltage controller with feedback linearization and distributed implemention in microgrids |
| WU Liang,LIU Qingkai,TANG Chong,LIU Mingbo |
| (Guangzhou Environmental Protection Investment Group Co., Ltd., Guangzhou 510330, China;School of Electric Power, South China University of Technology, Guangzhou 510640, China) |
| Abstract: |
| Aiming at the island microgird with micro-synchronous generator as the main sources of sencondary controls, a distributed secondary frequency/voltage control scheme is proposed. First, a feedback linearization method is used to design a frequency/voltage controller suitable for micro-synchronous generators, which can eliminate the frequency and voltage deviation caused by the primary control of micro-synchronous generators. Then, a distributed control scheme is proposed based on multi-agent system theory. The proposed frequency/voltage controller only needs to exchange the frequency/voltage and active power information with its neighbors, which is independent of the centralized controller and complex communication networks and improves the reliability of the microgrid. Meanwhile, the active power outputs of micro-synchronous generators can be allocated according to their rated ratios. Finally, the effectiveness of the proposed secondaty control scheme is verified on a real microgrid. This work is supported by National Key Basic Research and Development Program of China (973 Program) (No. 2013CB228205). |
| Key words: islanded microgrids secondary frequency/voltage control feedback linearization distributed control |
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