Publication
June-Seok Lee and Kyo-Beum Lee, "Open-Switch Fault Tolerance Control for a Three-Level NPC/T-type Rectifier in Wind Turbine Systems," IEEE Transactions on Industrial Electronics, vol. 62, no. 2, pp. 1012-1021, Feb. 2015.
2015
PEEMS
-
Oct. 4, 2023
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1. Authors: June-Seok Lee and Kyo-Beum Lee
2. Title: Open-Switch Fault Tolerance Control for a Three-Level NPC/T-type Rectifier in Wind Turbine Systems
3. Journal: IEEE Transactions on Industrial Electronics
4. Vol/no/pp: vol. 62, no. 2, pp. 1012-1021
5. Date: Feb. 2015
6. Abstract
: Three-level topologies are widely used in back-to-back converters of wind turbine generation (WTG) systems. In comparison with a conventional two-level topology, three-level topologies have more advantages, particularly for the high power. Neutral-point clamped (NPC) and T-type are typical three-level topologies. An open-switch fault of a three-level rectifier that is connected to a permanent-magnet synchronous generator (PMSG) leads to the current distortion and torque vibration in WTG systems. Furthermore, WTG systems can break down in the worst case. Therefore, a tolerance control for open-switch faults is required to improve the reliability of WTG systems. WTG systems by applying the tolerance control can be stopped safely and prevent additional problems. Depending on the situation, it can keep the operation of WTG systems under open-switch fault. The effects of outer open-switch faults of three-level rectifiers are analyzed by considering PMSG specifications in this paper. Moreover, a tolerance control for outer open-switch faults of the NPC and T-type three-level rectifiers are proposed with existing tolerance controls for inner open-switch faults. The proposed tolerance control is to inject the exact d-axis current value to eliminate current distortion. The simulation and experiment are conducted to prove the feasibility of the proposed tolerance control and to identify its performance.
- Oct. 4, 2023 Kyoung-Gu Lee, June-Seok Lee, and Kyo-Beum Lee, "Wide-Range Sensorless Control for SPMSM Using an Improved Full-order flux observer," Journal of Power Electronics, vol. 15, no. 3, pp. 721-729, May 2015.
- Oct. 4, 2023 June-Seok Lee, Kyo-Beum Lee, and Frede Blaabjerg, "Open-Switch Fault Detection Method of a Back-to-Back Converter using NPC Topology for Wind Turbine Systems," IEEE Transactions on Industry Applications, vol. 51, no. 1, pp. 325-335, Jan/Feb. 2015.