A Two-Layer Active Disturbance Rejection Controller Design for Load Frequency Control of Interconnected Power System

A Two-Layer Active Disturbance Rejection Controller Design for Load Frequency Control of Interconnected Power System
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互联电力系统负载频率控制的两层自抗扰控制器设计

DOI:
10.1109/tpwrs.2015.2480005
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发表时间:
2016-07
影响因子:
6.6
通讯作者:
Wu, M.
Wu, M.
中科院分区:
工程技术1区
文献类型:
--
作者:
Li, Yong;Cao, Yijia;She, Jinhua;Wu, M.

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提出了一种补偿估计等效输入扰动的双层自抗扰控制方法,用于多区域互联电力系统的负荷频率控制。该方法具有较强的抗随机载荷变化和参数不确定性的能力,保证了系统的高动态性能。建立了LFC系统的状态空间模型。然后在ADRC系统中采用全阶广义状态观测器(GSO)来估计EID。基于小增益理论推导了系统的稳定性条件。仿真结果表明,与传统方法相比,该方法具有较好的鲁棒性。
This letter proposes a two-layer active disturbance rejection control (ADRC) method with the compensation of estimated equivalent input disturbances (EID) for load frequency control (LFC) of multi-area interconnected power system. This method has a capability of rejecting the effects of random load variations and parameter uncertainties, and guaranteeing high dynamic performance. The state-space model of LFC system is established. Then a full-order generalized state observer (GSO) is employed in ADRC system to estimate EID. A stability condition is derived based on the small-gain theory. Simulation results demonstrate the robust performance of the proposed method, by comparing with traditional one.
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