Control system model for active power generation and reactive power compensation processes at solar power plants

S. Romanov О. Hramm О. Savytskyi
Received 11.11.2020, Revised 21.02.2021, Accepted 27.04.2021
Abstract

Purpose. To develop a model of a solar power plant control system under the conditions of its operation in accordance with the requirements of the network and considering needs of the consumer, which is the operator of electricity transmission systems. Research methods. Research methods in this paper include analytical research of electricity generation systems from solar insolation and mathematical modeling of electricity generation. Scientific novelty. A control system allows a solar power plant to operate in different operating modes. Such modes of operation include both the standard mode for generating the maximum active power under any conditions, and operation in the suboptimal mode under the conditions of receiving an order for electricity from the transmission system operator. Those suboptimal modes are the reservation of active energy to compensate frequency fluctuations, due to the dynamic weather conditions changes, as well as maintaining the maximum value of active power when receiving an order from the consumer. The system is also able to operate with an order for reactive power compensation, which can reduce active power generation by prioritizing reactive power compensation at the power plant. Practical significance. The article presents a model of a solar power plant control system, which serves as a basis for further modeling of its operation. The dependences of active and reactive energy in case of any environmental conditions and at different operation modes of the power plant, which is expressed in the power operating areas at solar power plant. Results. As a result of this work, the power plant can operate not only in its standard mode, but also in suboptimal power points due to the implementation of a control system, which possibly will be a good start for further development of more complex control systems considering more factors than only grid and reference power values

Keywords:
control system; solar power plant; active power; reactive power; generation; compensation; electricity

Retrieved from Vol. 19, No. 1, 2021

Pages 124–131

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Romanov, S., Hramm, О., & Savytskyi, О. (2021). Control system model for active power generation and reactive power compensation processes at solar power plants. Journal of Kryvyi Rih National University, 19(1), 124-131. https://doi.org/10.31721/2306-5451-2021-1-52-124-131
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