Suppression of Subsynchronous Resonance Using Thyristor- controlled Series Capacitors

碩士 === 國立成功大學 === 電機工程研究所 === 84 === The thesis presents the analyzed results of the employment of thyristor-controlled series capacitors (TCSC) for damping enhancement of subsynchronous torsional interactions of a power system containing s...

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Main Authors: Hong-Rong Liang, 梁宏榮
Other Authors: Li Wang
Format: Others
Language:en_US
Published: 1996
Online Access:http://ndltd.ncl.edu.tw/handle/98663547983539602168
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spelling ndltd-TW-084NCKU04420462016-02-05T04:16:28Z http://ndltd.ncl.edu.tw/handle/98663547983539602168 Suppression of Subsynchronous Resonance Using Thyristor- controlled Series Capacitors 利用閘流體控制串聯電容器以抑制次同步共振 Hong-Rong Liang 梁宏榮 碩士 國立成功大學 電機工程研究所 84 The thesis presents the analyzed results of the employment of thyristor-controlled series capacitors (TCSC) for damping enhancement of subsynchronous torsional interactions of a power system containing series-capacitor compensation. The studied power system consists of two sets of nonidentical turbine- generators connected to an infinite bus through a common series- capacitor compensated line. A set of TCSC model is proposed to properly connected in parallel with part of the series capacitors of the transmission line. A unified approach based on modal control theory is utilized to design damping controllers which employ shaft speed deviation of studied generators as stabilizing signals. Frequency-domain approach based on a linearized model and eigenvalue analysis such as variations of controller's parameters and changes of loading conditions is performed. Time-domain approach based on nonlinear model simulation under torque disturbances and a three-phase fault is also carried out. In addition, the sinusoidal variations of the infinite bus terminal voltage to simulate actually loading cyclic variations are also investigated. The simulation results show that the proposed TCSC can effectively stabilize subsynchronous torsional oscillations. Li Wang 王 醴 1996 學位論文 ; thesis 123 en_US
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description 碩士 === 國立成功大學 === 電機工程研究所 === 84 === The thesis presents the analyzed results of the employment of thyristor-controlled series capacitors (TCSC) for damping enhancement of subsynchronous torsional interactions of a power system containing series-capacitor compensation. The studied power system consists of two sets of nonidentical turbine- generators connected to an infinite bus through a common series- capacitor compensated line. A set of TCSC model is proposed to properly connected in parallel with part of the series capacitors of the transmission line. A unified approach based on modal control theory is utilized to design damping controllers which employ shaft speed deviation of studied generators as stabilizing signals. Frequency-domain approach based on a linearized model and eigenvalue analysis such as variations of controller's parameters and changes of loading conditions is performed. Time-domain approach based on nonlinear model simulation under torque disturbances and a three-phase fault is also carried out. In addition, the sinusoidal variations of the infinite bus terminal voltage to simulate actually loading cyclic variations are also investigated. The simulation results show that the proposed TCSC can effectively stabilize subsynchronous torsional oscillations.
author2 Li Wang
author_facet Li Wang
Hong-Rong Liang
梁宏榮
author Hong-Rong Liang
梁宏榮
spellingShingle Hong-Rong Liang
梁宏榮
Suppression of Subsynchronous Resonance Using Thyristor- controlled Series Capacitors
author_sort Hong-Rong Liang
title Suppression of Subsynchronous Resonance Using Thyristor- controlled Series Capacitors
title_short Suppression of Subsynchronous Resonance Using Thyristor- controlled Series Capacitors
title_full Suppression of Subsynchronous Resonance Using Thyristor- controlled Series Capacitors
title_fullStr Suppression of Subsynchronous Resonance Using Thyristor- controlled Series Capacitors
title_full_unstemmed Suppression of Subsynchronous Resonance Using Thyristor- controlled Series Capacitors
title_sort suppression of subsynchronous resonance using thyristor- controlled series capacitors
publishDate 1996
url http://ndltd.ncl.edu.tw/handle/98663547983539602168
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