DISTRIBUTED ELECTRICAL MICROGRID CONTROL

摘要

An electrical power source includes a power converter and either an electrical generator or an electrical energy storage device. Power flow is controlled through control of the power converter based on a voltage source and resistance model of the electrical power source. A power converter for an electrical generator is controlled to synthesize a constant voltage of the voltage source and a variable value of the resistance. The resistance value is controlled to deliver a maximum available output power to the electrical microgrid over a range of microgrid voltages up to a voltage below a maximum allowable voltage of the electrical microgrid. For an electrical energy storage device, the power converter is controlled to synthesize a resistance value of the resistance that is dependent upon a phase angle between the voltage at the microgrid side of the electrical power source and current of the electrical energy storage device.

主权项

1. A method comprising:
monitoring voltage at a microgrid side of an electrical power source in an electrical microgrid, the electrical power source comprising an electrical generator and a power converter coupled to the electrical generator at the microgrid side of the electrical generator, the electrical generator having a variable maximum available output power; monitoring voltage at an electrical generator side of the power converter of the electrical power source; varying power flow between the microgrid and the electrical power source by controlling the power converter to synthesize, in a voltage source and resistance model of the electrical power source, a constant voltage of the voltage source and a variable value of the resistance, controlling the power converter comprising controlling the value of the resistance to deliver the maximum available output power to the electrical microgrid over a range of microgrid voltages up to a first voltage VMAX1 below a maximum allowable voltage VMAX of the electrical microgrid.