Analysis and Design of LFC System with Governor Dead-band via Generalized Active Disturbance Rejection Control

doi:10.16182/j.issn1004731x.joss.201704015

Abstract

Abstract: To eliminate the effect of the governor dead-band nonlinearities and guarantee the system stability, for load frequency control (LFC) of power systems with governor dead-band nonlinearity, the active disturbance rejection control (ADRC) was adopted, and the effectiveness of the control method was verified through the describing function method. A linearized method of dead-band was proposed, and the generalized active disturbance rejection control (GADRC) was adopted. Further, an error compensation scheme was proposed to eliminate the dead-band nonlinearities effectively. Simulation results show that the proposed error compensation scheme can eliminate the dead-band nonlinearity effectively and guarantee the control performance of the system. The describing function method can be proposed to obtain the range of the compensation coefficient.

Key words: governor dead-band nonlinearity, load frequency control, describing function method, generalized active disturbance rejection control, error compensation scheme

CLC Number:

TP273

Chang Shuaibing, Tan Wen, Zeng Zhiyong. Analysis and Design of LFC System with Governor Dead-band via Generalized Active Disturbance Rejection Control[J]. Journal of System Simulation, 2017, 29(4): 818-825.

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