Frequency Response Analysis of a Single-Area Power System with a Modified LFC Model Considering Demand Response and Virtual Inertia

Muhammad Saeed Uz Zaman, Syed Basit Ali Bukhari, Khalid Mousa Hazazi, Zunaib Maqsood Haider, Raza Haider and Chul-Hwan Kim
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Muhammad Saeed Uz Zaman: College of Information and Communication Engineering, Sungkyunkwan University, Suwon 16419, Korea
Syed Basit Ali Bukhari: College of Information and Communication Engineering, Sungkyunkwan University, Suwon 16419, Korea
Khalid Mousa Hazazi: College of Information and Communication Engineering, Sungkyunkwan University, Suwon 16419, Korea
Zunaib Maqsood Haider: College of Information and Communication Engineering, Sungkyunkwan University, Suwon 16419, Korea
Raza Haider: College of Information and Communication Engineering, Sungkyunkwan University, Suwon 16419, Korea
Chul-Hwan Kim: College of Information and Communication Engineering, Sungkyunkwan University, Suwon 16419, Korea

Energies, 2018, vol. 11, issue 4, 1-20

Abstract: The modern electric power system is foreseen to have increased penetration of controllable loads under demand response programs and renewable energy resources coupled with energy storage systems which can provide virtual inertia. In this paper, the conventional model of an electric power system is appended by considering, individually and collaboratively, the role of demand response and virtual inertia for the purpose of frequency analysis and control. Most existing literature on this topic either considers one of these two roles or lacks in providing a general model of power system with demand response and virtual inertia. The proposed model is presented in general form and can include/exclude demand response and/or virtual inertia. Further, power system operator can opt the power shares from conventional, demand response, and virtual inertia loops for frequency regulation and can also evaluate the impact of other parameters such as time delays and frequency deadbands on system frequency response. The mathematical formulation of steady-state values of frequency deviation and power contribution from all resources is provided and validated by simulation results under various scenarios including a case of wind intermittency.

Keywords: load-frequency control; system frequency response; demand response; virtual inertia; virtual synchronous generator; steady-state error (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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