Journal of Modern Power Systems and Clean Energy

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Home > Archive>Volume 12, Issue 4, 2024 >1019-1030. DOI:10.35833/MPCE.2023.000754
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A Parallel-type Load Damping Factor Controller for Frequency Regulation in Power Systems with High Penetration of Renewable Energy Sources
Author:
Affiliation:

1.Hubei Engineering and Technology Research Center for AC/DC Intelligent Distribution Network, School of Electrical Engineering and Automation, Wuhan University,Wuhan 430072, China;2.State Grid Hubei Electric Power Company Limited Economic Research Institute, Wuhan 430074, China;3.State Grid (Suzhou) City & Energy Research Institute Company Limited, Suzhou 215000, China

Fund Project:

This work was funded by the State Grid Corporation of China (No. SGJSSZ00KJS2310831) “Research and application of key technologies for load flexibility resource mining and power grid regulation driven by industrial Internet”.

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    Abstract:

    Renewable energy sources (RESs) are rapidly developing and their substitution for traditional power generation poses significant challenges to the frequency regulation in power systems. The load damping factor D characterizes the active power of load that changes with power system frequency, which is an important factor influencing the frequency response. However, the value of D is small, resulting in the limitation in frequency regulation of the power system. This paper proposes a parallel-type load damping factor controller to enhance load damping factor by utilizing static var generators (SVGs) in substations. Additionally, it discusses the configuration method for the relevant parameters of the controller, evaluates its frequency regulation capability, investigates the impact of large-scale application of the controller on static and dynamic loads, and conducts a comprehensive evaluation of the impact of the damping factor control process on the voltage stability of the main grid. The large-scale application of the proposed controller can significantly improve the frequency regulation capability, and almost have no influence on the working status of the load. It can also significantly improve the dynamic performance of system frequency. The proposed controller can provide technical support for the frequency regulation of new power systems with high proportion of RESs.

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History
  • Received:October 04,2023
  • Revised:October 26,2023
  • Online: July 30,2024

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