This paper presents the Chandrapur - Padgeh Coordination Simulator Study performed as part of the Chandrapur 2 x 500MW HVDC Back-to-Back (BtB) and the Chandrapur-Padghe 2 x 750MW HVDC Transmission (CTP) Projects. The BtB project (ALSTOM) has been in service since 1998 for the Power Grid Corporation of India Limited (POWERGRID) and the CTP Project (ABB) is presently being completed for the Maharashtra State Electricity Board (MSEB). This study was performed to investigate interaction between the two HVDC schemes.
The study was carried out jointly by ALSTOM and ABB using ALSTOM's Real Time Digital Simulator (RTDS) facility to model the two HVDC schemes and associated ac systems. The RTDS model was interfaced to physical functional duplicates of the actual controls which are to be used on the two HVDC schemes. A large number of cases were studied, including AC and DC system disturbances, AC network reconfigurations, load changes and generator trips. The conclusion of this study is that good system stability exists when interconnecting the HVDC schemes.
K.M. Abbot, P.T. Griffiths, H. Duchen and M. Aten, In Proc. ICDS ’99, Vasteras Sweden, May 1999.
KEYWORDS: HVDC, Coordination, RTDS, Simulation