• 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 ›› 2015, Vol. 36 ›› Issue (6): 14-19.doi: 10.3969/j.issn.1000-7229.2015.06.003

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Optimal Supply Function for Power Producer Considering Energy Storage System

YIN Kun1,2, LIU Yajuan1, YI Guowei1, ZHOU Peng1   

  1. 1. College of Electrical and Information Engineering, Changsha 410004, China; 2. Zhanjiang Power Supply Company, Zhanjiang 524005, Guangdong Province, China
  • Online:2015-06-01
  • Supported by:

    Project Supported byNational Natural Science Foundation of China(71371065)


Energy storage system (ESS) has the advantages of fast absorption and release electricity, which can compensate for the shortcomings of renewable energy fluctuation. So, ESS has been widely used as a spinning reserve. This paper established a bi-level optimization model for the optimal supply of power producer with considering ESS, in which the upper level considered the interests of the diesel generation, and the lower level was to maximum the interests of energy services provider (ESP). According to the unsmooth characteristic of the lower-level optimization model, the method of smoothing processing was applied. In order to solve the model, the bi-level optimization was transformed into a single-level optimization by Karush-Kuhn-Tucker (KKT) conditions, and the nonlinear constraints were transformed into the linear constrains by using nonlinear complementary slackness conditions. Finally, numerical experiments show the effectiveness of the proposed model and algorithm.

Key words:  energy storage system, distributed generation, bi-level optimization, optimal supply function, interruptible load

CLC Number: