دانلود رایگان مقاله انگلیسی, میرایی SSR با استفاده از جریان زیرسنکرون متوقف کننده توسط SSSC

Damping of SSR Using Subsynchronous Current Suppressor With SSSC

سال انتشار : 2011

نوع مقاله : IEEE JOURNAL & MAGAZINES

تعداد صفحات : 11

Abstract—Hybrid series compensation using static synchronous

series compensator (SSSC) and passive series capacitor can improve

the stability of the system, increases the power transfer

capability and is useful for the fast control of power flow. This

paper analyzes the subsynchronous resonance (SSR) characteristics

of the hybrid series compensated power system in detail

and proposes a simple method for the extraction of subsynchronous

components of line current using filter. The extracted

subsynchronous frequency component of line current is used to

inject a proportional subsynchronous voltage in series with the

transmission line which suppresses subsynchronous current in

the transmission network. This novel technique is termed as subsynchronous

current suppressor. The design of subsynchronous

current suppressor is based on damping torque analysis and using

genetic algorithm. A novel graphical representation of series

resonance condition when SSSC is incorporated in the system

is presented. The detailed study of SSR is carried out based on

eigenvalue analysis, transient simulation and damping torque

analysis. The results of the case study on a system adapted from

IEEE First Benchmark Model demonstrates the effectiveness and

robust performance of subsynchronous current suppressor in

damping of SSR under various system operating conditions.

Linear analysis is performed on D-Q model of the system with

SSSC and the results are tested by executing transient simulation

based on detailed nonlinear three-phase model.

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