Parameter Identification and Efficiency Identification of Integrated Energy System Based on Network Model

doi:10.3969/j.issn.1000-7229.2019.06.004

Abstract

Abstract: With the rapid development of the Energy Internet， the accuracy of integrated energy system modeling is crucial to the economic and efficient operation of the system. On the basis of existing equipment model， considering the relationship between equipment topology and energy cascade utilization， this paper establishes a multi-energy network model for integrated energy systems. Then the robust estimation model of the exponential objective function is established， and the actual parameters of the equipment are used to accurately identify the equipment parameters. The advantages of the robust method proposed in this paper over the traditional least squares estimation method are compared and analyzed. Furthermore， the energy efficiency evaluation model of integrated energy system based on network model is proposed. The effectiveness of the proposed method and the accuracy of the robust parameters are proved by comparing the theoretical efficiency calculated by the equipment model obtained by the robust identification with the actual measured efficiency under various typical conditions.

Key words: integrated energy system, energy supply network modeling, parameter identification, exponential objective function, comprehensive energy utilization rate

CLC Number:

TM 73

FAN Shanshan， WANG Bin， XUE Yixun，ZHAO Haotian， GUO Qinglai， SUN Yong. Parameter Identification and Efficiency Identification of Integrated Energy System Based on Network Model[J]. Electric Power Construction, 2019, 40(6): 33-40.

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