Electric Power ›› 2020, Vol. 53 ›› Issue (10): 149-155.DOI: 10.11930/j.issn.1004-9649.202004219

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Economic Operation Optimization for New Energy Microgrid Based on Deterministic Method

SUN Yingshuang1, LUO Cong2, GE Leyi2   

  1. 1. DC Construction Branch of State Grid Corporation of China, Beijing 100052, China;
    2. State Grid E-commerce Co., Ltd., Beijing 100032, China
  • Received:2020-04-28 Revised:2020-05-19 Published:2020-10-05
  • Supported by:
    This work is supported by 2019 Industrial Internet Innovation and Development Project (Construction of Industrial Internet Platform Test Bed Based on Ubiquitous Power Internet of Things)

Abstract: In view of the typical application scenarios of microgrid, the mathematician rules of prediction errors for photovoltaic power, wind power and load are analyzed. With consideration of environmental protection and economic factors, an economic operation optimization model of microgrid based on deterministic method is constructed, which simplifies the difficulty for multi-objective problem solution. In a specific example, the influences of different confidence levels, different prediction errors and different environmental penalty factors on the microgrid operation are analyzed. The result shows that improving the prediction accuracy of photovoltaic output, wind power output and load can reduce the operation cost of microgrid. Moreover, the deterministic method has advantages of fast convergence speed and short iteration time for solving the optimization model of microgrid.

Key words: new energy, prediction error, microgrid, Monte Carlo, deterministic method