Comparison of Thermal Storage Combined Power Generation with Traditional Thermal Power Frequency Modulation and Generator Output

Lei Huang; Qiang-Sheng Xiao; Yan-Zuo Chang

Comparison of Thermal Storage Combined Power Generation with Traditional Thermal Power Frequency Modulation and Generator Output

( Vol-13,Issue-8,August 2026 ) OPEN ACCESS

Author(s):

Lei Huang, Qiang-Sheng Xiao, Yan-Zuo Chang

Keywords:

Combined Thermal and Energy Storage System, Energy Storage System, Power Dispatching.

Abstract:

Faced with growing electricity demand, the frequency regulation capacity of traditional thermal power units is limited and difficult to meet the current power system. Combining thermal power units with energy storage facilitates flexibility upgrades by leveraging the ultra-fast response characteristics inherent to such system. The method of joint dispatching of thermal power and energy storage systems is called combined thermal and energy storage. This study develops a theoretical model of thermal-storage combined frequency regulation to analyze system dynamic responses. Combining lithium battery and flywheel energy storage systems with 1000MW thermal power units, a simulation model for dynamic frequency regulation and peak shaving was built in MATLAB/Simulink. The simulation experiments showed that the cooperative control strategy could enhance frequency regulation capacity and also improve the stability of thermal power units.

Article Info:

Received: 26 June 2026, Received in revised form: 27 July 2026, Accepted: 01 Aug 2026, Available online: 06 Aug 2026