• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

ELECTRIC POWER CONSTRUCTION ›› 2022, Vol. 43 ›› Issue (9): 87-93.doi: 10.12204/j.issn.1000-7229.2022.09.009

• Research and Application of Key Technologies for Distribution Network Planning and Operation Optimization under New Energy Power Systems ·Hosted by Professor WANG Shouxiang and Dr. ZHAO Qianyu· • Previous Articles     Next Articles

Dynamic Optimal Control Model of Multi-energy Inertia in New Power System

SU Peng(), CHEN Lu(), WU Jian(), LIU Xin(), MA Jitao()   

  1. State Grid Inner Mongolia Eastern Electric Power Co., Ltd., Hohhot 010010,China
  • Received:2022-01-27 Online:2022-09-01 Published:2022-08-31
  • Contact: CHEN Lu E-mail:supeng1024@163.com;15946375633@163.com;360264936@qq.com;supen1024@163.com;zwj11302021@163.com
  • Supported by:
    State Grid Corporation of China Research Program(52660021000R)

Abstract:

Aiming at the problem that large-scale grid-connected renewable energy and high-proportion power electronic equipment access in new power system, which leads to the decrease of the system inertia level and affects the safe and stable operation of the power grid, a new power system multi-energy inertia dynamic optimization control model is proposed. Firstly, the inertia characteristics of electricity, heat and gas are analyzed, and the inertia models of energy transfer in the power, heat and gas systems are established, respectively. Secondly, considering the coupling and coordination relationship under multi-energy transfer, an event-driven dynamic inertia optimization control method for power, thermal and gas systems is proposed. The modified IEEE 39-node power system, 6-node thermal system and 7-node gas system are simulated as examples. The simulation results show that the proposed control method can effectively improve the frequency response of the new power system and maintain the robustness of the system operation.

Key words: multi-energy, inertia, new power system, optimized control, frequency stability

CLC Number: