Simulation Analysis of Voltage Support to Binjin HVDC Provided by Pumped Storage Unit's Synchronous Condenser Operation

doi:10.11930/j.issn.1004-9649.201607095

Abstract

Abstract: Voltage support provided by infeed ultra HVDC transmission system is of great significance for reducing the probability of HVDC's blocking or commutation failure and improving operation stability and reliability. This paper demonstrates key technologies and feasibility of pumped storage unit's (PSU's) synchronous condenser operation (SCO) mode. Moreover, a new operation mode which utilizes nearby PSU's SCO to provide voltage support to infeed ultra HVDC transmission system is proposed. The Binjin HVDC in Zhejiang grid and nearby abuilding PSU are considered in simulation analysis, which analyze impact of voltage support provided by PSU in SCO mode on Binjin HVDC system under some typical fault including AC system short circuit. Simulating result verifies that under specific conditions, the PSU's SCO can be utilized to improve HVDC operation reliability, which further improves security and reliability of HVDC multi-infeed Zhejiang power grid.

Key words: voltage support, commutation fault, pumped storage unit (PSU), synchronous condenser operation (SCO), power grid security

CLC Number:

TM761

WU Kuayu, LU Cencen, YUAN Yazhou. Simulation Analysis of Voltage Support to Binjin HVDC Provided by Pumped Storage Unit's Synchronous Condenser Operation[J]. Electric Power, 2018, 51(3): 54-61.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.201607095

https://www.electricpower.com.cn/EN/Y2018/V51/I3/54

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