• 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 (2): 126-134.doi: 10.12204/j.issn.1000-7229.2022.02.015

• New Energy Power Generation • Previous Articles    

Long-Term Fast Sequential Simulation Method Based on Linearized Power Flow for Power System

DONG Yu1(), DONG Cun1(), YU Ruoying2(), XIA Junrong2(), WANG Huichao2()   

  1. 1. State Grid Corporation of China, Beijing 100086, China
    2. China Electric Power Research Institute,Nanjing 210003,China
  • Received:2021-03-11 Online:2022-02-01 Published:2022-03-24
  • Contact: YU Ruoying E-mail:dongyu@sw.sgcc.com.cn;dong-cun@sgcc.com.cn;yuruoying@epri.sgcc.com.cn;xiajunrong@epri.sgcc.com.cn;17600271330@163.com
  • Supported by:
    State Grid Corporation of China Research Program(4000-202055050A-0-0-00)

Abstract:

Power system long-term sequential simulation and production simulation are important basis for renewable energy and power grid planning, and also effective tools to verify the scientificity of planning and design scheme. First of all, in order to improve the efficiency of long-term sequential simulation of large-scale power systems, this paper proposes a method of linearization of power flow of transmission grid according to the characteristics of transmission grids, and verifies the accuracy and calculation efficiency of linear power flow applying IEEE standard calculation examples. The results show that this method not only has higher calculation accuracy, but also can effectively reduce the calculation time for the power flow of large-scale power systems. Then, according to different site-selection and capacity-determination schemes of renewable energy, the linear power flow model is used to carry out the long-term fast sequential simulation of the power system. The simulation has obtained key power flow information such as node-voltage amplitude and branch power, which is of great significance to the grid structure of the power system and the planning and design of the location and capacity of renewable energy units.

Key words: time sequential simulation, production simulation, linearized power flow, power system planning, renewable energy, power flow calculation

CLC Number: