Abstract
The integration of variable renewable energy sources such as wind and solar power has brought a significant challenges and uncertainty in power system operation, making it essential to take measures for advanced coordinated control. Moreover, by using the batteries of plug-in electrical vehicles (PEVs), the active and reactive power support functions can be provided at certain buses in a power system. Hence, parking lots with a large number of PEVs, referred to as SmartParks, can provide these functions at bulk level. Thus, by appropriate control of SmartParks, the active and reactive power flows in a power system can be regulated to achieve the funetionalities of oscillation damping control, transmission line power flow regulation and bus voltage control. In this paper, in order to realize these three funetionalities concurrently by using SmartParks, fuzzy-logic based controllers are proposed. Wide area measurements from a power system can be used to generate the active and reactive power output dispatch command signals for SmartParks. The parameters of the fuzzy logic controllers are heuristically determined to provide optimal system-wide performances for oscillation damping, transmission line power flow regulation and bus voltage control. Typical results are provided on a 12-bus power system with 400 MW wind farm implemented on a real-time simulation platform.