Sub‐synchronous resonance mitigation by a STATCOM in doubly fed induction generator‐based wind farm connected to a series‐compensated transmission network. Issue 16 (17th December 2018)

• Record Type: Journal Article
• Authors: Gao, Benfeng; Hu, Yunting
• Is Part Of: Journal of engineering. Volume 2019:Issue 16(2019)
• Page Start: 812
• Page End: 815
• Publication Date: 2018-12-17
• Subjects: static VAr compensators -- power system transient stability -- time‐domain analysis -- subsynchronous resonance -- power system stability -- damping -- wind power plants -- flexible AC transmission systems -- asynchronous generators -- power generation control; sub‐synchronous resonance mitigation -- doubly fed induction generator‐based wind farm -- series‐compensated transmission network -- fast development -- wind power generation -- large‐scale wind farms -- electrical network -- transmission capacity -- series‐compensated power system -- sub‐synchronous resonance problem -- flexible AC transmission systems controllers -- transient stability -- static synchronous compensator -- SSR damping controller -- different series compensation levels -- operating conditions -- extensive transient simulations -- STATCOM controller -- transmission system; Engineering -- Periodicals; Engineering; Electronic journals; Periodicals; 620.005
• DOI: 10.1049/joe.2018.8393
• Languages: English
• ISSNs: 2051-3305

Abstract

Abstract : With the fast development of wind power generation, large‐scale wind farms are connected to an electrical network which is series compensated to increase transmission capacity. However, a series‐compensated power system may encounter with a sub‐synchronous resonance (SSR) problem. Flexible AC transmission systems controllers are widely applied to mitigate SSR and improve the transient stability of the power system. A static synchronous compensator (STATCOM) with an SSR damping controller is proposed to mitigate the potential of SSR in a series‐compensated doubly fed induction generator‐based wind farm. The local signal is used as the input of the damping controller, which is feasible to be implemented in a practical project. Taking account of different series compensation levels and operating conditions, extensive transient simulations have been carried out using power systems computer aided design/electromagnetic transients including DC (PSCAD/EMTDC) to demonstrate the capability of STATCOM in damping SSR. It is shown that the SSR is successfully alleviated by STATCOM, which also verifies the effectiveness of the proposed STATCOM controller in improving the stability of the transmission system.