• 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 ›› 2023, Vol. 44 ›› Issue (2): 25-37.doi: 10.12204/j.issn.1000-7229.2023.02.003

• Key Technology and Application of Flexible Distributed Energy Resources Oriented to New Power System ·Hosted by Associate Professor JU Liwei and Professor TAN Zhongfu· • Previous Articles     Next Articles

Two-Stage Scheduling Optimization Model of Flexible Resource Aggregation in New Power System

FAN Wei1(), LI Xudong1(), WANG Yao2(), LI Xiangguang1(), WANG Yujie1(), TAN Zhongfu1(), JU Liwei1()   

  1. 1. School of Economics and Management, North China Electric Power University, Beijing 102206, China
    2. Economic Research Institute, State Grid Shanxi Electric Power Company, Taiyuan 030000, China
  • Received:2022-05-24 Online:2023-02-01 Published:2023-01-30
  • Supported by:
    State Grid Corporation of China Research Program(520533220008)


The construction of the new power system dominated by new energy is a key driver to achieve the goal of carbon peaking and carbon neutrality. The traditional power supply structure dominated by controllable coal-fired power installations is transformed into a new power system dominated by new energy with strong uncertainty and weak controllability, which will face challenges such as shortage of flexibility resources. In order to improve the flexibility of the new power system, a two-stage scheduling optimization model of flexible resource aggregation is proposed in this paper. The first stage model considers time-of-price demand response, and takes the minimum net load fluctuation as the goal to smooth the load curve. The second stage model considers segmented incentive-based demand-response market trading mechanism, integrates flexibility resources such as electrochemical energy storage, pumped storage, and reformed thermal power, and designs the optimal operation scheme with the objective of minimizing system operation cost. Finally, the calculation result and scenario comparison show that demand response can fully exploit the interactive ability of load following system regulation. The reformed thermal power units can reduce coal consumption level, improve regulation ability, and enhance the spatial and temporal matching with system flexibility demand. Various types of energy storage actively respond to the power system peak regulation. Taking pumped storage power station as an example, the reservoir storage capacity presents the shape of "double peaks and double valleys" in the dispatching cycle.

Key words: new power system, flexible resource, pumped storage, demand response, two-stage

CLC Number: