Voltage and Frequency Control of a Stand Alone Brushless Wind Electric Generation Using Generalized Impedance Controller

In this paper, a new strategy for the control of terminal voltage and frequency of a stand-alone self-excited induction generator-(SEIG) based wind generator, working with variable speed and load is proposed. With a generalized impedance controller (GIC) (voltage source pulsewidth-modulated inverter with a dc-link battery), a new strategy to maintain the active and reactive power balance at the SEIG terminals has been introduced to control its terminal voltage and frequency. In the proposed control strategy, only a voltage feedback loop has been used to control both the SEIG terminal voltage and the frequency. A mathematical model of the SEIG-GIC system under wind generator environment has been developed and simulated in the MATLAB/Simulink. The simulation results are validated with the experimental ones conducted on a laboratory prototype of the SEIG-GIC system. The novelty of the present technique is that the GIC is capable of maintaining a constant SEIG terminal voltage and frequency, following both speed and load perturbations, with only a single (voltage) feedback loop.

[1]  P. Mattavelli,et al.  Reactive power and unbalance compensation using STATCOM with dissipativity-based control , 2000, Conference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No.00CH37129).

[2]  M.F. Rahman,et al.  Terminal voltage control of a wind turbine driven isolated induction generator using stator oriented field control , 2003, Eighteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2003. APEC '03..

[3]  Bhim Singh,et al.  Modelling and analysis of STATCOM based voltage regulator for self-excited induction generator with unbalanced loads , 2003, TENCON 2003. Conference on Convergent Technologies for Asia-Pacific Region.

[4]  Bhim Singh,et al.  Analysis of a novel solid state voltage regulator for a self-excited induction generator , 1998 .

[5]  Li Wang,et al.  Analysis of voltage control for a self-excited induction generator using a current-controlled voltage source inverter (CC-VSI) , 2001 .

[6]  P.K.S. Khan,et al.  Performance evaluation of an electronic lead-lag VAr compensator and its application in brushless generation , 1997, Proceedings of Second International Conference on Power Electronics and Drive Systems.

[7]  Vivek Agarwal,et al.  Simple control for a wind-driven induction generator , 2001 .

[8]  Paolo Mattavelli,et al.  Reactive power and imbalance compensation using STATCOM with dissipativity-based control , 2001, IEEE Trans. Control. Syst. Technol..

[9]  Eduard Muljadi,et al.  Hybrid power system with a controlled energy storage , 2003, IECON'03. 29th Annual Conference of the IEEE Industrial Electronics Society (IEEE Cat. No.03CH37468).

[10]  Jose Antenor Pomilio,et al.  Self-excited induction generator controlled by a VS-PWM bidirectional converter for rural applications , 1999 .

[11]  Shankar P. Bhattacharyya,et al.  PID tuning revisited: guaranteed stability and non-fragility , 2002, Proceedings of the 2002 American Control Conference (IEEE Cat. No.CH37301).

[12]  Mutsuo Nakaoka,et al.  Three-phase self-excited induction generator driven by variable-speed prime mover for clean renewable energy utilizations and its terminal voltage regulation characteristics by static VAr compensator , 2003, 38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003..

[13]  Phoivos D. Ziogas,et al.  Analysis and design of a three-phase synchronous solid-state VAr compensator , 1989 .

[14]  Phil Taylor,et al.  Load control of a wind-hydrogen stand-alone power system. , 2006 .

[15]  R. Bonert,et al.  Self-excited induction generator with excellent voltage and frequency control , 1998 .

[16]  J.K. Chatterjee,et al.  Analysis of Operation of a Self-Excited Induction Generator With Generalized Impedance Controller , 2007, IEEE Transactions on Energy Conversion.