Sub-optimal automatic generation control of interconnected power system using constrained feedback control strategy

2012 ◽  
Vol 43 (1) ◽  
pp. 295-303 ◽  
Author(s):  
Naimul Hasan ◽  
Ibraheem ◽  
Prabhat Kumar ◽  
Nizamuddin
Keyword(s):  
Feedback Control ◽  
Power System ◽  
Control Strategy ◽  
Automatic Generation ◽  
Automatic Generation Control ◽  
Interconnected Power System ◽  
Feedback Control Strategy ◽  
Generation Control

An Optimal Automatic Generation Control Strategy for Interconnected Power Grid with Wind Power

2013 ◽  
Vol 860-863 ◽  
pp. 2017-2022
Author(s):  
Yi Xuan Weng ◽  
Chang Hong Deng ◽  
Lei Chen
Keyword(s):  
Power System ◽  
Wind Power ◽  
Control Strategy ◽  
Frequency Control ◽  
Automatic Generation ◽  
Automatic Generation Control ◽  
Pi Control ◽  
Interconnected Power System ◽  
System Frequency ◽  
Generation Control

As the continuous increase of wind power installed capacity in modern grid, its inherent randomness and fluctuation may cause a series of problems to power system frequency control. Since the dynamic characteristics of traditional automatic generation control (AGC) based on PI control cannot fully and effectively meet the interconnected power grids requirements for load frequency control. In this paper, a strategy based optimal control theory is proposed, and a new dynamic cost function is also presented. Compared to the conventional PI control method, the proposed strategy has better dynamic adaptability to interconnected power system with wind generation, and the optimal coordination among control areas can be realized more easily. Take the two-area interconnected power system with wind power model as an example, the simulation is carried out based on MATLAB/SIMULINK. The simulation results show that the control strategy can obviously suppress the fluctuation of system frequency and tie-line power, and its effectiveness is confirmed.

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