Aiming at the problem that extended Kalman filter (EKF) is difficult to determine appropriate system and measurement noise matrices in parameter identification of direct-drive permanent magnet synchronous generator (D-PMSG), a method D-PMSG based on mean particle swarm optimization with extreme disturbance (EDMPSO)-EKF proposed. Firstly, by analysing principle EKF, dual-thread model established...

Due to the complexity of detailed models, single-generator equivalent model (SEM) a wind farm is commonly used facilitate stability analysis. However, adequacy SEM for analysis in direct-drive farms with VSC-HVDC systems still uncertain. Therefore, this article analyzes two aspects: oscillation modes and sub-synchronous (SSO) enhancement by optimizing parameters. Firstly, various critical are c...

Diesel Generator (DG) set based standalone supply systems are source of electricity in many parts of world. DG sets are backbone of supply in trains, hospitals, institutes, telecommunication towers etc. Because of huge demand of electricity for air-conditioning, lighting, toiletries, pantry demands in trains, the railways has been one of the big consumer of DG set based supply systems. Moreover...