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

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

2 Citations (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.
Original languageEnglish
Title of host publicationIEEE Industry Applications Conference, 42nd IAS Annual Meeting : Conference record
Number of pages8
PublisherElectrical Engineering/Electronics, Computer, Communications and Information Technology Association
Publication date2007
ISBN (Print)978-1-4244-1260-0
Publication statusPublished - 2007
EventIndustry Applications Conference, IAS 2007 - New Orleans, Louisiana, United States
Duration: 23 Sep 200727 Sep 2007


ConferenceIndustry Applications Conference, IAS 2007
CountryUnited States
CityNew Orleans, Louisiana

Fingerprint Dive into the research topics of 'Voltage Sags Ride-Through of Motion Sensorless Controlled PMSG for Wind Turbines'. Together they form a unique fingerprint.

Cite this