2020/03/13 by Tor Inge Reigstad, Reigstad, Tor Inge, Kjetil Uhlen +1
Engineering · #Cavitation Phenomena in Pumps #FOS: Electrical engineering #Microgrid Control and Optimization #Systems and Control (eess.SY) #Wind Turbine Control Systems #electronic engineering #information engineering
paper · pdf · doi:10.48550/arxiv.2003.06262
openalex publication_date 2020/03/13 · openalex created_date 2022/07/26 · openalex updated_date 2026/07/28
This paper deals with the design of controllers for variable speed hydropower\n(VSHP) plants with the objective of optimize the plants' performance. The\ncontrol objectives imply enabling fast responses to frequency deviations while\nkeeping the electric and hydraulic variables within their constraints. A model\npredictive controller (MPC) was developed to coordinate the turbine controller\nwith the virtual synchronous generator (VSG) control of the power electronics\nconverter. The simulation results show that the VSG is able to deliver fast\npower responses by utilizing the rotational energy of the turbine and the\ngenerator. The MPC controls the guide vane opening of the turbine to regain the\nnominal turbine rotational speed. If this is not possible due to the\nconstraints of the hydraulic system, the MPC adjusts the power output of the\nVSHP by changing the VSG power reference. The proposed control system allows\nthe VSHP to provide fast frequency reserves (FFR).\n