| 引用本文: | 朱鑫,刘俊勇,刘洋,等.基于滑模变结构的含不平衡负荷微电网控制策略研究[J].电力系统保护与控制,2015,43(6):25-32.[点击复制] |
| ZHU Xin,LIU Junyong,LIU Yang,et al.Study of micro-grid control strategy contained unbalanced load based on sliding-mode variable structure[J].Power System Protection and Control,2015,43(6):25-32[点击复制] |
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| 摘要: |
| 不平衡负荷会增加系统运行电压的不平衡度和谐波畸变率，影响微电网电能质量。利用滑模变结构控制鲁棒性强、动态响应性好的特点，将其应用于含不平衡负荷微电网运行控制中。对各系统建立了相关数学模型，并设计了相应的控制策略，实现了微电网不同运行模式间的平滑切换。PSCAD/EMTDC仿真结果表明了该方法的可行性和有效性。 |
| 关键词: 微电网 滑模变结构 电能质量 不平衡负荷 控制策略 |
| DOI：10.7667/j.issn.1674-3415.2015.06.005 |
| 投稿时间：2014-06-09修订日期：2014-08-04 |
| 基金项目:中欧中小企业节能减排科研合作资金项目(SQ2011ZOF000004) |
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| Study of micro-grid control strategy contained unbalanced load based on sliding-mode variable structure |
| ZHU Xin,LIU Junyong,LIU Yang,XIANG Yue,ZHU Guojun,DAI Songling,CHENG Siqi,TIAN Hao |
| (School of Electrical Engineering and Information, Sichuan University, Chengdu 610065, China;Economic and
Technical Research Institute of Sichuan Electric Power Corporation, Chengdu 610065, China) |
| Abstract: |
| Unbalanced load increases imbalance and harmonic distortion of system operating voltage, which results in the influence of power quality in micro-grid. Sliding-mode variable structure control is proved to be robust and has plenty of remarkable dynamic response characteristics, so that it could be applied to the micro-grid operation with unbalanced load control. The mathematical model of the system is established, and an appropriate control strategy is designed to achieve a smooth mode-switch among diverse micro-grid operating modes. The experimental results of PSCAD/EMTDC show the feasibility and effectiveness of the proposed approach. |
| Key words: micro-grid sliding-mode variable structure control power quality unbalanced load control strategy |
