Voltage Sags Ride-Through of Motion Sensorless Controlled PMSG for Wind Turbines

Marius Fatu, Cristian Lascu, Gheorghe-Daniel Andreescu, Remus Teodorescu, Frede Blaabjerg, Ion Boldea

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

2 Citationer (Scopus)


This paper describes a variable-speed motion-sensorless permanent magnet synchronous generator (PMSG) control system for wind energy generation. The proposed system contains a PMSG connected to the grid by a back-to-back PWM inverter with bidirectional power flow, a line filter, and a transformer. The control system employs PI current controllers with crosscoupling decoupling for both inverters, an active power controller, and a DC link voltage controller. The PMSG rotor speed without using emf integration, and the line voltage frequency are estimated by two PLL based observers. A Dmodule filter is used to robustly estimate the grid voltage positivesequence for control in the case of asymmetric voltages. The paper investigates the ride-through performance of this system during asymmetric power grid voltage sags. Design details for various parts of the control system are presented, together with experimental results for single-, two-, and three-phase voltage source sags. Smooth transition through asymmetric voltage sags is demonstrated by all experiments.
TitelIEEE Industry Applications Conference, 42nd IAS Annual Meeting : Conference record
Antal sider8
ForlagElectrical Engineering/Electronics, Computer, Communications and Information Technology Association
ISBN (Trykt)978-1-4244-1260-0
StatusUdgivet - 2007
BegivenhedIndustry Applications Conference, IAS 2007 - New Orleans, Louisiana, USA
Varighed: 23 sep. 200727 sep. 2007


KonferenceIndustry Applications Conference, IAS 2007
ByNew Orleans, Louisiana


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