A 12-pulse static synchronous compensator for the distribution system employing the 3-level GTO-inverter

Abstract

Abs~~ct-The paper presents an advanced scheme for the shunt comp~n §ation of the d~ §tribu~iQn system that can significantly im~rove the harmonic le of the line without increasing the system c o~p~e~~t y and The scheme employs a transformerless a~rang~ment of 3-level GTO inverters that can generate a §-level o u t p~t~ A gate control is developed that fully utilizes the capabili~~es of this arran~ement to provide a 12-pulse operation for the compensator. The proposed compensator can connect directly to the ~~s t r~b u t i~n grid without a transformer. The effect~veness and performance of the proposed compensator are tested through simulated studies on a 13.8 kV distribution system.

ANFIS based 48-Pulse STATCOM Controller for Enhancement of Power System Stability

“…Two 24-pulse GTO converters, phase-shifted by 7.5 o from each other, are used to provide the full 48-pulse converter operation. The 48-pulse converter comprises of four identical 12-pulse GTO converters interlinked by four 12-pulse transformers with phase-shift windings [2,3]. The 48-pulse converter can be used in high power applications without the need for any AC filters due to its high performance and very low harmonic content on the AC side.…”

Improvement in the Quality of Delivery of Electrical Energy using Power Electronics Systems

“…For this kind of control the shunt control devices (e.g., SVC, STATCOM) [127][128][129] are responsible (by supplying or absorbing reactive current -current injection). Shunt devices basically impact the voltage at the point of connection and help maintain the system voltage when transferred power is varied.…”

Three-Level 48-Pulse STATCOM with Pulse Width Modulation

“…In this case, the devices are overstressed when the dc link voltage is high and underutilized when the dc link voltage is low. STATCOM configurations using three-level VSC have B. Singh Á K. V. Srinivas (&) Department of Electrical Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India e-mail: srinivas.kadagala@gmail.com been proposed in the literature [13][14][15]. Modeling and control aspects of STATCOM are presented in [16][17][18][19].…”