Design and implementation of an electromechanical control system for micro-hydropower plants


Renewable energy resources are preferred as compared to conventional energy resource due to their environment friendly nature. Micro-hydropower plant is one of the best renewable energy sources that provides electricity to hilly and rural areas. Micro-hydropower plants are mostly installed at natural heads and runoff rivers. Lack of a reservoir at the headrace of micro-hydropower plant results in variable water flow to the turbine. Also, consumer load connected to the generator varies with time. The variation in water flow to the turbine and consumer load changes result in variation in generator output power and frequency. This paper presents a novel and innovative electromechanical control system that keeps generator frequency constant as the consumer load varies. The mechanical control part of this system controls water flow to the turbine using dc motor and sliding gate. The electric part of this controller keeps the generated power equal to ballast load power and consumer load power. The ballast loads are turned on and off at the zero crossing to the sinusoidal wave of the generator output that minimizes transients and power losses in switching. Electromechanical controller increases efficiency of micro-hydropower plant and also increases the reliability of power supply. The proposed system is simulated in MATLAB Simulink. An electronic model of the proposed system is implemented in Proteus software. Based on the Proteus model, a hardware model is designed and tested in the laboratory. The experimental model results are compared with Simulink model which are in close agreement.

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  1. 1.

    Lagouir M, Badri A, Sayouti Y (2019) An optimal energy management system of Islanded hybrid AC/DC microgrid. In: 2019 international conference on optimization and applications. ICOA 2019, pp 1–6

  2. 2.

    Singh S, Azad ML, Kumar A (2016) Electronic load controllers for self excited induction generator. In: 2016 1st international conference on innovation and challenges in cyber security. ICICCS 2016, no ICICCS, pp 300–303

  3. 3.

    Qazi A et al (2019) Towards sustainable energy: a systematic review of renewable energy sources, technologies, and public opinions. IEEE Access 7:63837–63851

  4. 4.

    Vasconcelos MH, Beires P, Moreira CL (2019) Peças Lopes JA (2019) Dynamic security of islanded power systems with pumped storage power plants for high renewable integration—a study case. J Eng 18:4955–4960

  5. 5.

    Phunchok L, Kumar S, Om AP, Rahi P (2012) Frequency control of micro hydro power plant using electronic load controller. J Eng Res Appl 2(4):733–737

  6. 6.

    Xia P, Deng C, Chen Y, Yao W (2019) MILP based robust short-term scheduling for wind-thermal-hydro power system with pumped hydro energy storage. IEEE Access 7:30261–30275

  7. 7.

    Ali A, Ur M, Siddiqi R, Muhammad R (2018) Design and simulation of an electro-mechanical control system for mini hydro power plants. In: International conference on power generation systems and renewable energy technologies, pp 6–12

  8. 8.

    Li T et al (2019) Optimized operation of hybrid system integrated with MHP, PV and PHS considering generation/load similarity. IEEE Access 7:107793–107804

  9. 9.

    Sun X, Guo S, Guo JUN, Du B (2019) A hybrid multi-objective evolutionary algorithm with heuristic adjustment strategies and variable neighbor-hood search for flexible job-shop scheduling problem considering flexible rest time. IEEE Access 7:157003–157018

  10. 10.

    Grigor’ev VI (2005) Methods of load-frequency control for generating units of small and micro hydropower plants. Power Technol Eng 39(1):7–10

  11. 11.

    Sobhan N (2016) Automatic generation control and monitoring the mechanism of micro hydro power plant with impulse turbine and synchronous generator. In: 2016 2nd international conference on robotics and artificial intelligence. ICRAI 2016, no November 2016, pp 175–179

  12. 12.

    ur Rehman U, Riaz M (2018) Design and implementation of electronic load controller for small hydro power plants. In: 2018 international conference on computing, mathematics and engineering technologies, pp 1–7

  13. 13.

    Elkadeem MR, Elaziz MA, Ullah Z, Wang S, Sharshir SW (2019) Optimal planning of renewable energy-integrated distribution system considering uncertainties. IEEE Access 10:1–22

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Ali, A., Siddiqi, M.U.R., Muhammad, R. et al. Design and implementation of an electromechanical control system for micro-hydropower plants. Electr Eng (2020) doi:10.1007/s00202-020-00921-y

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  • Renewable energy
  • Micro-hydropower plant
  • Synchronous generator
  • Electronic load controller
  • PID controller
  • Fuzzy logic controller
  • Electromechanical controller
  • Phase-locked loop
  • Zero crossing switching