| 引用本文: | 吴超,陆超,韩英铎,吴小辰,柳勇军.多干扰情况下的电力系统闭环辨识研究[J].控制理论与应用,2011,28(11):1569~1576.[点击复制] |
| WU Chao,LU Chao,HAN Ying-duo,WU Xiao-chen,LIU Yong-jun.Closed-loop identification of power system with multiple disturbances[J].Control Theory and Technology,2011,28(11):1569~1576.[点击复制] |
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| 多干扰情况下的电力系统闭环辨识研究 |
| Closed-loop identification of power system with multiple disturbances |
| 摘要点击 2688 全文点击 1300 投稿时间：2010-07-15 修订日期：2010-12-28 |
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| DOI编号 10.7641/j.issn.1000-8152.2011.11.CCTA100820 |
| 2011,28(11):1569-1576 |
| 中文关键词 类噪声 闭环辨识 可辨识性 一致性 收敛性 |
| 英文关键词 ambient signal closed-loop identification identifiability consistency convergence |
| 基金项目 广东省自然科学基金博士科研启动资助项目(S2011040000995); 深圳大学基础研究资助项目(201117); 深圳市传感器技术重点实验室开放基金资助项目(SST201106). |
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| 中文摘要 |
| 电力系统中多处负荷投切与变化等随机性质小扰动, 导致系统响应始终存在类似噪声的小幅波动. 本文提出利用广域测量类噪声信号辨识被控电力系统模型, 及时准确地反映系统当前运行特性, 进而解决因仿真模型及参数误差造成的系统分析及控制器设计可信度难以评估等难题. 重点对多干扰情况下的系统模型闭环辨识问题进行理论性研究, 包括闭环可辨识性、辨识一致性及收敛性等方面, 分析得出类噪声环境下要实现系统闭环辨识需具备的条件, 并对理论研究结果进行了仿真验证. |
| 英文摘要 |
| Small fluctuations caused by random changes of loads exist continuously in power grids, which are called ambient signals. We put forward a method of using wide-area measured ambient data to identify the power system model. This model reflects accurate operating conditions currently, and provides information for solving problems in system analysis and controller design. The closed-loop identification of system with multiple disturbances is theoretically studied, including the closed-loop identifiability, the consistency and the convergence. The requirements for realizing the closed-loop identification are summarized. Simulation examples validate the theoretical research results. |
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