• 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 ›› 2020, Vol. 41 ›› Issue (12): 41-48.doi: 10.12204/j.issn.1000-7229.2020.12.004

• Planning, Design, and Technical Evaluation • Previous Articles     Next Articles

Reliability Evaluation of Electricity-Gas Integrated Energy System with Alternative Loads

REN Haiquan, JIA Yanbing, TIAN Feng, BAI Yun   

  1. Shanxi Key Lab of Power System Operation and Control (Taiyuan University of Technology), Taiyuan 030024, China
  • Received:2020-05-11 Online:2020-12-01 Published:2020-12-04
  • Contact: JIA Yanbing
  • Supported by:
    National Nature Science Foundation of China(51807129)

Abstract:

As the coupling relationship between the power system and the natural gas system is gradually deepened, by guiding users to change energy consumption behaviors, the ability of the electricity-gas integrated energy system to interconnect and support each other can be enhanced, and at the same time, it will certainly affect the reliability of the coupled system. This paper focuses on the effect of alternative loads on the reliability of the integrated energy system of electricity and gas. According to user controllability and the characteristics of energy consumption changes before and after load substitution, an optimal load-cutting model of the integrated energy system is established considering alternative loads as a system load shedding strategy. Applying the non-sequential Monte Carlo method, the reliability evaluation index and algorithm of the electricity-gas integrated energy system considering alternative load are proposed. The example analysis shows that the alternative load users can reduce the energy conversion loss between the two subsystems through the two-way selection of the energy use of the power system and the natural gas system, and meet the user's energy demand in time. It better improves the economy and reliability of the system, and provides a reference for the planning and operation of the electricity-gas coupling system.

Key words: alternative load, reliability evaluation, reliability benefit, electricity-gas integrated energy system

CLC Number: