Power Loss Calculation Method and Practically Measured Results of VSC-HVDC Transmission System

doi:10.3969/j.issn.1000-7229.2016.06.018

Abstract

Abstract:

The study on the power loss calculation method for modular multilevel converter based high voltage direct current （MMC-HVDC） transmission system has great importance to the design and optimization of HVDC transmission system. This paper proposes a practical power loss calculation method for MMC-HVDC. Firstly， we construct the power loss calculation models for MMC-HVDC and each component according to the topology of MMC-HVDC and the parameters of components， and exactly solve the loss data of MMC-HVDC and its components under different operating conditions through simulation calculation. Then， we use data fitting method to obtain the loss calculation formula convenient for engineering application. Finally， according to the VSC-HVDC transmission system in Xiamen， we compare the results of the proposed loss calculation formula with the practically measured results. The results show that the loss of MMC-HVDC calculated and evaluated by the proposed fitting formula can meet the engineering accuracy requirements.

Key words: modular multilevel converter based high voltage direct current （MMC-HVDC）, active power loss, data fitting, multiple regression analysis

CLC Number:

TM 721.1

YI Yang，YE Rong，LIN Zhangsui. Power Loss Calculation Method and Practically Measured Results of VSC-HVDC Transmission System[J]. Electric Power Construction, 2016, 37(6): 125-133.

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