Patent ID: 9148022
Filing Date: 2015-09-29
Classification: F03D,H02J,Y02E

Abstract:
1. A wind turbine-permanent magnet synchronous generator (WT-PMSG) system having electrical circuitry delivering electrical power to a load connected to a grid via a power line, comprising: a permanent magnet synchronous generator (PMSG) variable speed wind turbine having a synchronous generator output; a back-to-back converter system including rectifier circuitry connected to the PMSG system in-line with the generator, inverter circuitry connected to the PMSG system in-line with the grid, and a DC link capacitor connecting the rectifier circuitry to the inverter circuitry, the rectifier circuitry including a modulation index control input; voltage source converter (VSC) circuitry including an output electrical circuit, the VSC circuitry being configured as a static synchronous compensator (STATCOM), the STATCOM being shunt connected to the load, the load being connected to the power line; and feedback control circuitry connected to the voltage PWM modulation index control input of the rectifier circuitry, said feedback control circuitry controlling the PWM modulation index of the rectifier circuitry responsive to a disturbance input to the feedback control system.