Wisconsin Alumni Research Foundation

Control Of Small Distributed Energy Resources
WARF: P05242US

Inventors: Robert Lasseter, Paolo Piagi

The Invention
A method of controlling the output inverter of a microsource in a distributed energy resource system is disclosed. Embodiments of the invention include using unit or zone power controllers that reduce the operating frequency of the inverter to increase its unit output power. Preferred embodiments includes methods wherein the inverter reaches maximum output power and minimum operating frequency at the same time, and further comprising using a voltage controller implementing a voltage vs. reactive current droop. Other aspects of this embodiment relate to an inverter that implements such methods, and a microsource containing such an inverter. These methods can be extended to control inverters in a plurality of microsources, organized in a single zone or in a plurality of zones.
For current licensing status, please contact Emily Bauer at [javascript protected email address] or 608-960-9842