Controller design with model identification approach in wide area power system

2014 ◽  
Vol 8 (8) ◽  
pp. 1430-1443 ◽  
Author(s):  
Nand Kishor ◽  
Soumya R. Mohanty ◽  
Liisa Haarla ◽  
Mats Larsson ◽  
Jukka Turunen
Keyword(s):  
Power System ◽  
Controller Design ◽  
Model Identification ◽  
Wide Area ◽  
Identification Approach

scholarly journals Wide-Area Robust Decentralized Coordinated Control of HVDC Power System Based on Polytopic System Theory

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Shiyun Xu ◽  
Huadong Sun ◽  
Baiqing Li ◽  
Guangquan Bu ◽  
Jun Yi ◽  
...  
Keyword(s):  
Power System ◽  
Controller Design ◽  
Damping Ratio ◽  
Output Feedback Control ◽  
Coordinated Control ◽  
Operating Conditions ◽  
Wide Area ◽  
Design Algorithm ◽  
Loop Control ◽  
Loop Control System

The present study proposes a hierarchical wide-area decentralized coordinated control framework for HVDC power system that is robust to multiple operating conditions. The upper level wide-area coordinated controller is designed in the form of dynamic output feedback control that coordinates the lower level HVDC supplementary controller, PSS, and SVC. In order to enhance the robustness of the designed controller under various operating conditions, the polytopic model is introduced such that the closed-loop control system can be operated under strong damping mode in virtue of the stability criterion based on damping ratio. Simulation results demonstrate that the proposed controller design algorithm is capable of enhancing the system damping over four different conditions.

scholarly journals Wide-Area Damping Controller Design Based on the Frequency Domain Self-Excitation Method

2018 ◽  
Vol 2018 ◽  
pp. 1-9
Author(s):  
Lei Gao ◽  
Yanchao Ma ◽  
Yonghui Nie ◽  
Shiyun Xu ◽  
Xiaojie Chu ◽  
...  
Keyword(s):  
Power System ◽  
Frequency Domain ◽  
Controller Design ◽  
Design Method ◽  
Wide Area ◽  
Power System Control ◽  
Identification Method ◽  
Excitation Method ◽  
Damping Controller ◽  
Low Order

In this paper, a wide-area DC damping controller design method is proposed to damp the weak interarea oscillation modes. First, the low-order power system control model identification method is proposed based on the frequency domain self-excitation method to obtain the dominant modes and other related information. In what follows, the identified model is transformed into a low-order state space equation. By comparing the geometric metrics of different schemes, the various input signals and installation locations of the controller are selected. Furthermore, the damping controller parameter calculation is realized based on the self-excitation frequency domain identification method, which does not depend on the detailed model of the system. The design process is simple and it is easy to apply in the practical engineering of large-scale complex power grids. The applicability and effectiveness of the proposed controller design method are demonstrated through simulations of a two-area four-generator power system.

Wide-Area Robust SMES Controller Design using Synchronized PMUs for Stabilization of Interconnected Power System with Wind Farms

2010 ◽  
Vol 5 (4) ◽  
pp. 428-438 ◽  
Author(s):  
Issarachai Ngamroo ◽  
Cuk Supriyadi Ali Nanda ◽  
Sanchai Dechanupaprittha ◽  
Masayuki Watanabe ◽  
Yasunori Mitani
Keyword(s):  
Power System ◽  
Controller Design ◽  
Wind Farms ◽  
Wide Area ◽  
Interconnected Power System

Optimal Design of Wide Area Based on Fuzzy Controller and Intelligent Method

2017 ◽  
Vol 27 (03) ◽  
pp. 449-473 ◽  
Author(s):  
Saeed Setayeshi ◽  
Vahid Bairami Rad ◽  
Alireza Noruzi ◽  
Nasser Yousefi
Keyword(s):  
Power Systems ◽  
Power System ◽  
New England ◽  
Fuzzy Controller ◽  
Controller Design ◽  
Area Measurement ◽  
Wide Area ◽  
Nonlinear Controller ◽  
Measurement Systems ◽  
Interconnected Power Systems

Recently, the controller using wide-area measurement systems (WAMS) signals has been proposed by researchers. But, an unavoidable delay before the wide-area signals exists which is received by the controller. Accordingly, a delay-independent robust control problem of large interconnected power systems is presented based on the hybrid fuzzy controller for wide area measurement. A fuzzy controller is a nonlinear controller and it is not so sensitive to system topology, parameter and operating condition changes as the conventional ones. According to wide area power system complexity and variation of the loads and network conditions, FPSS has been considered in this paper. Furthermore, the proposed controller has been improved by chaotic version of shark smell optimization algorithm (CSSO) as an optimization problem. Effectiveness of the proposed method has been applied over the 10 machine 39 bus New England power system. Finally, the effectiveness of the proposed controller design methodology is demonstrated through simulation example. Obtained results demonstrate the superiority of the proposed strategy.

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