Electric Vehicle Supply Equipment (EVSE) are residential and commercial devices that use low voltage AC input (typically 208 V or 240 V in the U.S.) from the grid to charge Electric Vehicles (EVs). EVSE can be equipped with a communications module that allows communication between the EV and the EVSE, as well as between the EVSE and the grid. Increasing grid level communication using synchrophasors, via Phasor Measurement Units (PMUs), which measure voltage, current and frequency at high speeds, could also work in concert with blocks of EVSE to provide demand response and grid compensation functionality. When combined with energy storage, this also enables the potential for increased renewables grid penetration. To increase the widespread use of EVs, the deployment of EV charging infrastructure in the form of EVSE is critically important. However, many obstacles relative to infrastructure capital and installation costs, and perceived impacts to the grid must first be overcome. This paper addresses EVSE grid impact mitigation measures as well as grid services EVSE may provide. The technology to transform the EVSE/EV battery system, a grid load, into a valuable grid asset, exists in the form of components and a system approach that includes PMUs and grid-level energy storage. Already, PMUs and Demand Response are making great strides as key components to enable the smart grid paradigm. Electric utilities and EV stakeholders are conducting widespread demonstration programs and application testing for TOU pricing, grid-level energy storage, grid power electronics, synchrophasors and EV charging infrastructure. This paradigm has the potential to provide electric utilities a level of control of incremental generation capacity not available with the much slower and limited capability SCADA (supervisory control and data acquisition) systems.
EVSE demand response and grid compensation using synchrophasor monitoring and control
EVS, Electric Vehicle Symposium, 26 ; 2788-2795
2012
8 Seiten, 5 Bilder, 10 Quellen
Conference paper
English
Elektrizitätsversorgung , Energiespeicherung , Elektrofahrzeug , Infrastruktur , Niederspannung , Spannung (elektrisch) , Demonstrationsprogramm , Leistungselektronik , Datenerfassungssystem , Smart Grid , Phasenmessung , Fahrzeugladestation , Stromnetz , Wechselstrom , regenerative Energie , Kapitalkosten , Elektrizitätswirtschaft , Nutzungszeit
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