Abstract:
Systems, methods, and devices of the various embodiments enable parallel control of multiple uninterruptable power modules (“UPMs”) connecting multiple power sources to a bus in parallel. A UPM may be comprised of at least one controller coupled to at least one inverter, and the UPM may be configured to convert the DC voltage output from a DC source to an AC voltage, such as an AC voltage suitable for output to an AC bus. A UPM may receive a power sharing command and control its at least one inverter based at least in part on the received power sharing command to output a voltage to a bus.
Abstract:
A method and apparatus for parallel operation of multiple power sources including one fuel cell power source. The apparatus includes a droop controller master communicatively connected to the multiple power sources and configured to measure a load demand for the multiple power sources, a first droop controller slave communicatively connected to the droop controller master and to a first fuel cell power source, the first droop controller configured to calculate a first droop profile for the first fuel cell power source, a second droop controller slave communicatively connected to the droop controller master and to a second power source, and a first inverter, electrically connected to the first fuel cell power source and communicatively connected to the first droop controller slave, and configured to output power according to a first droop profile.
Abstract:
Systems and methods for determining a site control architecture for controlling inverter(s) in a microgrid-based site are disclosed. The system includes a site controller, stamp controller(s), and inverter controller(s) communicatively coupled with each other. The site controller receives site operating input(s) associated with a microgrid-based site, determines a site control architecture for implementation on the microgrid-based site to stabilize an operation of the microgrid-based site, receives values corresponding to electrical parameter(s) associated with electrical point(s) in the microgrid-based site, transmits a control message to each of the stamp controller(s) and the inverter controller(s), and facilitates each of the stamp controller(s) and the inverter controller(s) to operate in one of at least two control modes for implementing the determined site control architecture, in response to the control message. The at least two control modes include an Alternating Current (AC) droop control mode and a master-slave control mode.
Abstract:
Systems, methods, and devices of the various embodiments enable parallel control of multiple uninterruptable power modules (“UPMs”) connecting multiple power sources to a bus in parallel. A UPM may be comprised of at least one controller coupled to at least one inverter, and the UPM may be configured to convert the DC voltage output from a DC source to an AC voltage, such as an AC voltage suitable for output to an AC bus. A UPM may receive a power sharing command and control its at least one inverter based at least in part on the received power sharing command to output a voltage to a bus.