A direct drive grid connected wind energy system with STATCOM and super-capacitor energy storage

In this paper, a grid connected permanent magnet synchronous generator (PMSG) based direct drive variable speed wind turbine with a static synchronous compensator (STATCOM) is investigated to achieve uninterrupted operation of wind farms during grid disturbances. The wind energy system will be able to maintain uninterrupted operation during grid faults or disturbances. The control strategies for the wind energy conversion system and STATCOM with super-capacitor are implemented in Matlab/Simpower. The proposed control strategy for super capacitor based STATCOM effectively reduces the level of voltage sag, enhance the low voltage/fault ride through capability of the wind farm and mitigate the power quality issue at the point of common coupling (PCC). Results show that the STATCOM with super-capacitor energy storage can enhance the dynamic performance of the direct drive wind energy system.

[1]  R.G. Harley,et al.  Control of IPM Synchronous Generator for Maximum Wind Power Generation Considering Magnetic Saturation , 2007, 2007 IEEE Industry Applications Annual Meeting.

[2]  M. Baran,et al.  STATCOM Impact Study on the Integration of a Large Wind Farm into a Weak Loop Power System , 2008, 2006 IEEE PES Power Systems Conference and Exposition.

[3]  Wei Li,et al.  Real-Time Simulation of a Wind Turbine Generator Coupled With a Battery Supercapacitor Energy Storage System , 2010, IEEE Transactions on Industrial Electronics.

[4]  Sharad W. Mohod,et al.  A STATCOM-Control Scheme for Grid Connected Wind Energy System for Power Quality Improvement , 2010, IEEE Systems Journal.

[5]  A. Kehrli,et al.  Understanding grid integration issues at wind farms and solutions using voltage source converter FACTS technology , 2003, 2003 IEEE Power Engineering Society General Meeting (IEEE Cat. No.03CH37491).

[6]  Rik W. De Doncker,et al.  Modeling the dynamic behavior of supercapacitors using impedance-spectroskopy , 2002 .

[7]  Karl Johan Åström,et al.  PID Controllers: Theory, Design, and Tuning , 1995 .

[8]  M. Chinchilla,et al.  Control of permanent-magnet generators applied to variable-speed wind-energy systems connected to the grid , 2006, IEEE Transactions on Energy Conversion.

[9]  M. Steurer,et al.  Applying a STATCOM for stability improvement to an existing wind farm with fixed-speed induction generators , 2008, 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century.

[10]  N. Dizdarevic,et al.  FACTS-based reactive power compensation of wind energy conversion system , 2003, 2003 IEEE Bologna Power Tech Conference Proceedings,.

[11]  R.G. Harley,et al.  Real-Time Implementation of a STATCOM on a Wind Farm Equipped With Doubly Fed Induction Generators , 2006, IEEE Transactions on Industry Applications.

[12]  Wei Qiao,et al.  Coordinated reactive power control of a large wind farm and a STATCOM using heuristic dynamic programming , 2009 .

[13]  Jan T. Bialasiewicz,et al.  Power-Electronic Systems for the Grid Integration of Renewable Energy Sources: A Survey , 2006, IEEE Transactions on Industrial Electronics.

[14]  A.F. Zobaa,et al.  A Comprehensive Overview on Reactive Power Compensation Technologies for Wind Power Applications , 2006, 2006 12th International Power Electronics and Motion Control Conference.

[15]  Ganesh K. Venayagamoorthy,et al.  SmartPark as a Virtual STATCOM , 2011, IEEE Transactions on Smart Grid.

[16]  Hans-Peter Nee,et al.  Design Study of a Converter Interface Interconnecting Energy Storage With the DC Link of a StatCom , 2011, IEEE Transactions on Power Delivery.

[17]  Tze-Fun Chan,et al.  Permanent-Magnet Machines for Distributed Power Generation: A Review , 2007, 2007 IEEE Power Engineering Society General Meeting.