Startup-Stop Control Strategy and Dynamic Simulation Experiments of Multi-Terminal Hybrid HVDC System Based on LCC-VSC

doi:10.3969/j.issn.1000-7229.2017.08.012

Abstract

Abstract: ABSTRACT： In order to research the basic control strategy of line commutated converter （LCC）-voltage source converter （VSC） multi-terminal hybrid HVDC system, this paper sets up the dynamic simulation experimental platform of LCC-VSC three-terminal bipole hybrid HVDC, and studies the start-stop control strategy in different operation modes of hybrid HVDC system including LCC （rectifier）-VSC （inverter）, VSC （rectifier）-LCC （inverter） and VSC （rectifier or inverter） connected to LCC HVDC system, as well as the effect of multi-terminal hybrid HVDC when one terminal is deblocking or blocking online. Based on the experimental result, the main control functions and characteristics of the hybrid HVDC system are analyzed. The results show that the proposed control strategy can achieve stable start-stop and on-line switching of the hybrid HVDC system.

Key words: multi-terminal hybrid HVDC transmission, line commutated converter （LCC）, voltage source converter （VSC）, start-up strategy, block strategy

CLC Number:

TM 72

HU Jingen, JIA Xuantao, WANG Yao, WANG Ruyu, GAO Shilong, CAO Litan.

Startup-Stop Control Strategy and Dynamic Simulation Experiments of Multi-Terminal Hybrid HVDC System Based on LCC-VSC

[J]. Electric Power Construction, 2017, 38(8): 86-.

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