LFC of an interconnected power system with multi-source power generation in deregulated power environment

•Interconnected power system with multi-source power generation.•LFC in deregulated environment for all possible contracts.•Optimal output feedback controller is proposed (simple, lesser cost, robust).•More feasible combination of hydro, thermal and gas in each control area.•Simulation results match...

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Bibliographic Details
Published in:International journal of electrical power & energy systems Vol. 57; pp. 277 - 286
Main Authors: Parmar, K.P. Singh, Majhi, S., Kothari, D.P.
Format: Journal Article
Language:English
Published: Oxford Elsevier Ltd 01.05.2014
Elsevier
Subjects:
Applied sciences
Control systems
Deregulated
Deregulation
Dynamic tests
Dynamical systems
Dynamics
Electric power generation
Electric power plants
Electrical engineering. Electrical power engineering
Electrical machines
Electrical power engineering
Exact sciences and technology
Load frequency control
Miscellaneous
Operation. Load control. Reliability
Optimal control
Output feedback
Power generation
Power networks and lines
Regulation and control
Deregulated
Optimal control
Load frequency control
Dynamic response
State feedback
Deregulation
Control system
Power system economics
Interconnected power system
Power electronics
State variable
Trade
Electrical network
Power markets
Electric power production
Output feedback
Large scale system
ISSN:0142-0615, 1879-3517
Online Access:Get full text
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Summary:•Interconnected power system with multi-source power generation.•LFC in deregulated environment for all possible contracts.•Optimal output feedback controller is proposed (simple, lesser cost, robust).•More feasible combination of hydro, thermal and gas in each control area.•Simulation results matching with desired values. In this paper, an interconnected power system with multi-source power generation is proposed for load frequency control (LFC) in deregulated power environment. Keeping in view the new power environment, modified LFC scheme is proposed in deregulated environment for multi-source combination of hydro, reheat thermal and gas generating units in each control area. Optimal output feedback controller with pragmatic viewpoint is presented which uses less number of state variables for feedback as measurement of all of the state variables of a large system is impossible in the real world. The proposed controller incorporates all possible power transactions taking place in a deregulated power market. An extensive analysis is done for LFC and it is found that dynamic responses obtained satisfy the LFC requirements in deregulated power environment.
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ISSN:0142-0615
1879-3517
DOI:10.1016/j.ijepes.2013.11.058