PSVR Parameters Adjustment on Large Capacity Synchronous Condensers

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PSVR Parameters Adjustment on Large Capacity Synchronous Condensers

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[1]CHEN Qiang,WANG Hua,WANG Kewen,et al.PSVR Parameters Adjustment on Large Capacity Synchronous Condensers[J].Journal of Zhengzhou University (Engineering Science),2020,41(04):81-86.[doi:10.13705/j.issn.1671-6833.2020.04.009]

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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 41 Number of periods: 2020 04 Page number: 81-86 Column: Public date: 2020-08-12

Title:: PSVR Parameters Adjustment on Large Capacity Synchronous Condensers

Author(s):: CHEN Qiang1; WANG Hua1; WANG Kewen2; LIU Yanhong2; 1.Electric Power Company Research Institute,State Grid Henan Electric Power,Zhengzhou 450000,China;2.School of Electrical Engineering,Zhengzhou University,Zhengzhou 450001,China

Keywords:: excitation control system; power system voltage regulator (PSVR); synchronous condenser; small disturbance stability; eigenvalue

CLC:: -

DOI:: 10.13705/j.issn.1671-6833.2020.04.009

Abstract:: The large capacity synchronous condenser equipped with power system voltage regulator PSVR could provide effective transient voltage support for UHV DC transmission.Taking two new large capacity synchronous condensers in Henan power grid as an example,PSVR parameters were adjusted from the point of view of condenser dynamic characteristics and small disturbance stability.The influence of condenser reactive power output and PSVR parameters on voltage characteristics and power angle characteristics was analyzed,and a approach for adjusting PSVR parameters was proposed.Time constants in PSVR phase shifting segments were adjusted to minimize the root mean square of voltage amplitude angle characteristic curve.Voltage oscillation modes relevant to condensers were determined by the eigenvalue calculation of small disturbance stability on whole system.According to voltage oscillation mode sunder different system operation modes and different condenser reactive power outputs,and combining with power angle oscillation mode check calculation,the adjustment ranges of PSVR gain coefficients were determined.The presented approach could reduce the influence of PSVR on power angle,facilitate the flexible adjustment of PSVR gain,and provide reference for parameter tuning.

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Last Update: 2020-10-06