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Load Frequency Control in Multi-Area Interconnected Power Systems Using Second Order Sliding Mode

Load Frequency Control in Multi-Area Interconnected Power Systems Using Second Order Sliding Mode
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Author(s): Ark Dev (National Institute of Technology Manipur, India) and Mrinal Kanti Sarkar (National Institute of Technology Manipur, India)
Copyright: 2020
Pages: 37
Source title: Novel Advancements in Electrical Power Planning and Performance
Source Author(s)/Editor(s): Smita Shandilya (Sagar Institute of Research, Technology and Science, India), Shishir Kumar Shandilya (Vellore Institute of Technology, India), Tripta Thakur (Maulana Azad National Institute of Technology, India) and Atulya K. Nagar (Liverpool Hope University, UK)
DOI: 10.4018/978-1-5225-8551-0.ch011

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Abstract

The chapter focuses on load frequency control (LFC) problems in multi area power systems using nonlinear second order sliding mode control (NL-SOSMC) under load disturbances and parameter uncertainties. A sudden load disturbance can causes deviation in frequency and tie line power from their schedule value. The main objective of the chapter is to give knowledge about the application of robust control technique mainly sliding mode control (SMC) for load frequency problems. The designed controller ensures finite time convergence of frequency and tie line power deviations with chattering free control signal. The proposed controller confirms better transient and steady state behavior. Furthermore, the controller is validated under matched uncertainty, random step load disturbances, parameter uncertainties, and with nonlinearities in power system like generation rate constraints (GRC) and governor dead band (GDB). The stability of the controller is theoretically proved using Lyapunov candidate function and verified using simulations in MATLAB R2015a.

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