Robust frequency control of hybrid power system with EV and HP

Abstract

The aim of the paper is to propose a noble load frequency control (LFC) scheme for hybrid power system (HPS). The hybrid power system owing to its intermittent generating sources always needs a robust load frequency controller for its reliable operation. In this paper electric vehicle and heat pump are incorporated with the HPS for frequency control. Use of customer appliances like electric vehicle (EV) and heat pump (HP) eventually reduces the use of independent energy storage units for the HPS. The power control of HP and charging/discharging of EV helps in real power management of the HPS which ultimately helps in frequency control. A recently proposed harris' hawks optimization (HHO) technique is utilized for tuning of the controllers parameters. Two controllers are taken into consideration i.e. PID and fuzzy PID controller for evaluation of frequency control in HPS. The fuzzy aided PID (FPID) controller shows superior performance against different operating conditions than PID controller.