Impact of communication delays on PEVs charging power control for frequency stabilization in remote microgrid

Abstract

This paper aims to analyze the impact of communication delays on the performance of Plug-in electric vehicles (PEVs) charging power control for frequency stabilization based on Wide-Area Monitoring and Control (WAMC). Phasor Measurement Unit (PMU) is utilized in data acquisition for achieving the input signal of PEVs charging power control. In practical integration aspect, the communication delays are assessed for obtaining the impact of the PEVs charging power control consisting of synchrophasor data gathering delay, synchrophasor data transmission delay, synchrophasor data aligning in Phasor Data Concentrator (PDC), application algorithm delay and control signal transmission delay from the control center to the local PEVs. The multi-area remote microgrid is performed and simulated using DIgSILENT Powerfactory simulation software. The PEVs charging power controllers are integrated at particular locations in the microgrid with different PEVs penetration levels. The multi-area remote microgrid is fully considered the dynamic behaviors in power system. Furthermore, Photovoltaic (PV) generations are integrated to consider the intermittent characteristic of renewable energy source (RES) using synthesized solar radiation. This paper also attains the dynamic of load characteristic according to consumers demand. The simulation study is analyzed with different communication delays for receiving the effect on the controller. Simulation results indicate the impact of some communication delays on each PEVs charging power control in the remote microgrid. The results also reveal the performance of the PEVs charging power control for stabilizing system frequency under the particular condition.