Electromechanical Modelling of Modular Multilevel Converter Based HVDC System and Its Application

被引：0
|
作者：
Kou Longze [1 ]
Zhu Lin [2 ]
Li Fangyuan [2 ]
机构：
[1] Global Energy Interconnect Res Inst, State Key Lab Adv Power Transmiss Technol, Beijing, Peoples R China
[2] Global Energy Interconnect Res Inst, Beijing Key Lab DC Grid Technol & Simulat, Beijing, Peoples R China
来源：
2017 IEEE CONFERENCE ON ENERGY INTERNET AND ENERGY SYSTEM INTEGRATION (EI2) | 2017年
关键词：
MMC-HVDC; electromechanical modelling method; load flow model; transient stability model; additional control method; MMC;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
This paper introduces the electromechanical modelling method of modular multilevel converter based high voltage direct current (MMC-HVDC) system and studies the Chongqing-Hubei project based on the model. Firstly, the steady load flow model is established in this paper. Then, the transient stability model, which includes the AC side model, DC side model and control system model, is described in detail. For improving the transient stability, an additional control method, which combines a frequency controller and emergency power support strategy, is added on the control system model. Moreover, the modulation model is studied and discussed in case of fault conditions. The model is implemented on PSASP and its validity is verified through comparison with electromagnetic model. At last, the simulation is carried out based on the real grid date. The simulation results demonstrate the benefits of MMC-HVDC and the improvement in transient stability by applying the additional control method.
引用
收藏
页数：6
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