A Model Free Estimation Based Neurocontroller for Synchronous Generator Excitation to Enhance Transient Stability

2011 ◽  
Author(s):  
Abdul Ghani Abro ◽  
Junita Mohamad-Saleh
Keyword(s):  
Transient Stability ◽  
Synchronous Generator ◽  
Model Free ◽  
Synchronous Generator Excitation

Dynamic Performance Enhancement of Synchronous Generator Excitation via Nonlinear Backstepping Control

2017 ◽  
Vol 18 (4) ◽  
Author(s):  
Haitham Saad Mohamed Ramadan ◽  
Mohamed Becherif
Keyword(s):  
Power Systems ◽  
Transient Stability ◽  
Performance Enhancement ◽  
Dynamic Performance ◽  
Synchronous Generator ◽  
Nonlinear Character ◽  
Synchronous Generator Excitation ◽  
Single Machine Infinite Bus ◽  
The Stability ◽  
Nonlinear Backstepping Control

Abstract This paper addresses the transient stability problem in power systems of nonlinear character. A recursive nonlinear backstepping controller for improving the single machine infinite bus system’s dynamic behavior is proposed for the system global stabilization considering the network transfer conductances. Despite parameters uncertainties, nonlinear dynamics and/or disturbances, the feedback laws based on the backstepping approach are explicitly derived and the conservatism of the stability property is guaranteed for both lossy and lossless power system representations. Simulation results, via MATLAB™-Simulink, reveal that the proposed backstepping technique can be feasibly designed to ensure significant dynamic performance enhancements.

Nonlinear Prediction Control of Synchronous Generator Excitation Based on Subsection Approximation

2012 ◽  
Vol 590 ◽  
pp. 155-160
Author(s):  
Hong Shan Zhao ◽  
Xiao Ming Lan ◽  
Yu Si Zhao ◽  
Yang Xia
Keyword(s):  
Transient Stability ◽  
Reactive Power ◽  
Synchronous Generator ◽  
Sampling Interval ◽  
Euler Method ◽  
Control Input ◽  
Nonlinear Prediction ◽  
Current Sampling ◽  
Synchronous Generator Excitation ◽  
Prediction Control

This paper presents a subsection approximate nonlinear model predictive control (SANMPC) method for synchronous generator excitation control in the regional power grid. The proposed SANMPC considers the voltage as the reference trajectories and the change range of active power, reactive power and voltage as unequal constraints. Segmenting for a sampling interval, it uses sampled values and the control input initial value at the current sampling moment to predict the state at each segment by the Explicit Euler method. The predictive equations of the next sampling moment can be obtained by the predictive state and the control input at the penultimate segment, and form the optimal control problem which may be solved by the interior-point method. We take advantage of a four-machine power system to verify the effectiveness of the proposed SANMPC method under MATLAB platform. The simulating results show that the SANMPC method is simple and efficient, and greatly improves the transient stability compared with the conventional controller both.

Study on Large Capacity 4-Pole Synchronous Generator Excitation System

2016 ◽  
Vol 136 (1) ◽  
pp. 18-24
Author(s):  
Daisuke Hiramatsu ◽  
Yoichi Uemura ◽  
Dai Nozaki ◽  
Shinji Mukoyama ◽  
Kazuma Tsujikawa ◽  
...  
Keyword(s):  
Synchronous Generator ◽  
Excitation System ◽  
Large Capacity ◽  
Synchronous Generator Excitation
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