Voltage Regulation Using STATCOM with PI and Adaptive PI Controls

  • Authors

    • S Felix Stephen
    • Dr I. Jacob Raglend
    2018-08-04
    https://doi.org/10.14419/ijet.v7i3.1.17082
  • Adaptive control, Proportional Integral (PI) control, Reactive Power, STATCOM, Voltage stability

  • In power systems, voltage instability problems occur due to its continuous demand in heavily loaded networks. So it is essential to stabilize the voltage levels in power systems. The stabilization of power systems can be improved by Flexible Alternating Current Transmission System (FACTS) devices. One of the FACTS devices named Static Synchronous Compensator (STATCOM) injects the compensating current in phase quadrature with line voltage and replicate as inductive reactance to produce capacitive power for the AC grid or as capacitive reactance to draw inductive power from the AC grid for controlling power flow in the line. This paper proposes Adaptive PI control over conventional PI that normally self-adjusts the controller gains under disturbances and helps in improving the performance and attaining a preferred response, irrespective of the change of working conditions. The work is implemented under MATLAB/SIMULINK environment. This method performs more efficient than the original PI with fixed control gains and also improves the system response speed consistently.

     

     

  • References

    1. [1]. M. Merkle, A. M. Miri, “Modelling of Industrial Loads for Voltage Stability Studies in Power Systems,†Proc. of IEEE Canadian Conference of Electrical and Computer Engineering, 2001.

      [2]. P. W. D. S. Lehn, “Modeling analysis and control of current source inverter based STATCOM,†IEEE Trans. Power Delivery, No.17, 2002, pp. 248-253.

      [3]. P. Rao, M. L. Crow, Z. Yang, “STATCOM control for power system voltage control applications,†IEEE Trans. Power Del., vol. 15, no. 4, pp. 1311–1317, Oct. 2000.

      [4]. H. Radmanesh, S. S. HeidariYazdi, S. U. Mosazadeh, G. B. Gharehpetian, “Studying Voltage Stability in Power System Considering Load Dynamics,†Indian Journal of Science and Technology, 2013 Nov, 6(11),

      [5]. A. H. Norouzi, A. M. Sharaf, “Two control schemes to enhance the dynamic performance of the STATCOM and SSSC,†IEEE Trans. Power Del., vol. 20, no. 1, pp. 435–442, Jan. 2005.

      [6]. M. S. E. Moursi, A. M. Sharaf, “Novel controllers for the 48-pulse VSC STATCOM and SSSC for voltage regulation and reactive power compensation,†IEEE Trans. Power Syst., vol. 20, no. 4, pp. 1985–1997, Nov. 2005.

      [7]. S. K. Sethy, J. K. Moharana, “Modeling, Design and Simulation of Current and Voltage Linear Controller of a STATCOM for Reactive Power Compensation,†NSPEES-12., Sept.29-30, GIET, BBSR, pp-37-44, 2012.

      [8]. Gowrishankar Kasilingam, Jagadeesh Pasupuleti, “Coordination of PSS and PID Controller for Power System Stability Enhancement – Overview,†Indian Journal of Science and Technology, 2015 Jan, 8(2),

      [9]. M. A. Golkar, M. Zarringhalami, “Coordinated Design of PSS and STATCOM Parameters for Power System Stability Improvement Using Genetic Algorithm,†Iranian Journal of Electrical and Computer Engineering, Vol. 8, pp. 80-88, 2009.

      [10]. E. Nanda Kumar, R. Dhanasekaran, R. Mani, “Optimal Location and Improvement of Voltage Stability by UPFC using Genetic Algorithm (GA),†Indian Journal of Science and Technology, 2015 June, 8(11),

      [11]. S. Panda, N. P. Padhy, “Optimal location and controller design of STATCOM for power system stability improvement using PSO,†Journal of the Franklin Institute, 2008, Vol. 345, No. 2, pp. 166-181.

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  • How to Cite

    Felix Stephen, S., & I. Jacob Raglend, D. (2018). Voltage Regulation Using STATCOM with PI and Adaptive PI Controls. International Journal of Engineering & Technology, 7(3.1), 178-182. https://doi.org/10.14419/ijet.v7i3.1.17082