| 引用本文: | 朱昊,韦钢,吴万禄,周昌林.自抗扰技术在微电网下垂控制策略中的应用[J].电力系统保护与控制,2014,42(9):61-67.[点击复制] |
| ZHU Hao,WEI Gang,WU Wan-lu,ZHOU Chang-lin.The ADRC applied in droop control strategy in microgrid[J].Power System Protection and Control,2014,42(9):61-67[点击复制] |
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| 摘要: |
| 针对传统微电网下垂控制策略中控制参数整定复杂，以及受电网电压、负荷波动影响较大等问题，提出一种基于自抗扰技术的微电网下垂控制策略。该控制策略能够维持微电网在孤岛和并网模式下的稳定运行。自抗扰控制结构较强的抗干扰能力，能够有效抑制各参量的波动，对电网的不确定性干扰具有较好的抑制作用，且设计方法简单易行。仿真结果表明，当负荷发生变化时，该控制策略能够有效地调节微电网内功率的平衡，保证微电网电压和频率的恒定，对微电网起到支撑作用。 |
| 关键词: 微电网 下垂控制 自抗扰控制 双环控制 状态观测器 |
| DOI：10.7667/j.issn.1674-3415.2014.09.010 |
| 投稿时间：2013-06-15修订日期：2013-09-19 |
| 基金项目: |
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| The ADRC applied in droop control strategy in microgrid |
| ZHU Hao,WEI Gang,WU Wan-lu,ZHOU Chang-lin |
| (Shanghai Key Laboratory of Power Station Automation Technology, Shanghai University of Electric Power, Shanghai 200090, China;Shanghai PUHAIQIUSHI Electric Power New Technology Limited Company, Shanghai 200090, China) |
| Abstract: |
| For the traditional droop control strategy of the microgrid, it is difficult to adjust the control parameters of the strategy, and it is also affected by the grid voltage and load fluctuation greatly. To address the problem, this paper presents a droop control strategy of microgrid based on the technology of the ADRC, which can maintain the stable operation of microgrid under the islanded mode and the grid-connected mode. The structure of the ADRC has strong anti-interference ability, it can suppress the fluctuation of parameters and restrain the uncertain disturbance of the grid effectively, and the design method is also simple. The simulations reveal that the control strategy can maintain the balance of the power in microgrid effectively when the load is changing, keep the microgrid voltage and frequency constant, and play a supporting role in the microgrid. |
| Key words: microgrid droop control ADRC double loop control state observer |
