PD IEC/TR 61850-90-7:2013 PDF

1   Scope This part of IEC 61850 describes the functions for power converter -based distributed energy resources (DER) systems, focused on DC-to-AC and AC-to-AC conversions and including photovoltaic systems (PV), battery storage systems, electric vehicle (EV) charging systems, and any other DER systems with a controllable power converter . It defines the IEC 61850 information models to be used in the exchange of information between these power converter -based DER systems and the utilities, energy service providers (ESPs), or other entities which are tasked with managing the volt, var, and watt capabilities of these power converter -based systems. These power converter -based DER systems can range from very small grid-connected systems at residential customer sites, to medium -sized systems configured as microgrids on campuses or communities, to very large systems in utility -operated power plants, and to many other configurations an d ownership models. They may or may not combine different types of DER systems behind the power converter , such as an power converter -based DER system and a battery that are connected at the DC level. The namespace of this document is: