The Powerwise Group, Inc.

Xantrex Technology Inc.

Schneider Electric Solar Inverters Usa, Inc.

Zoran Miletic

Michael Gerard Tobin

Christopher John Recio

Masautso Ngosi

Sergio Pieiga, Iii

Ralph McDiarmid

Christopher Lynn Caswell

Trevor Monk

A system and method are provided for regulating voltage received from an electric utility grid. A unified power flow controller is provided at a point of power consumption and includes a terminal electrically coupled to a power source, which receives a grid alternating current and a grid alternating voltage from the electric utility grid. A power converter is electrically coupled to the terminal and includes an active rectifier that converts substantially all of the grid alternating current to a direct current and an inverter that converts the direct current to a load alternating current and a load alternating voltage, the load alternating voltage being less than the grid alternating voltage. A transformer is provided having first terminals electrically coupled to the power source and second terminals electrically coupled to an output of the inverter. The transformer injects the load alternating voltage in series with the grid alternating voltage.

Unified power flow controller utilizing energy saving devices at a point of power consumption

A method and system are provided for sourcing and sinking reactive power to an electric grid. The control system includes a terminal electrically coupled to a power source that originates from an electric utility grid. The terminal receives a grid alternating current having a real power component and a reactive power component. A power converter is electrically coupled to the terminal, the power converter includes an active rectifier that converts substantially all of the grid alternating current to a direct current and an energy storage device that stores energy supplied by the direct current. The active rectifier sources the reactive power component and the stored energy through the terminal to the electric utility grid. The power converter further includes an inverter that converts the direct current to a load alternating current having at least one of a load real power component and a load reactive power component.

Meter/voltage regulator with volt-ampere reactive control positioned at customer site

Systems, methods, and circuits are disclosed for detecting continuity of a fuse or other current protection device in a circuit. For example, a signal is generated and coupled onto a closed circuit in which the continuity of the fuse closes the circuit. The signal is then coupled from the closed circuit to a signal detector, which detects the presence of the signal and provides an output indicative of the presence of the signal. If the fuse blows, the circuit is opened, prohibiting the signal from being coupled to the signal detector, in which case the signal detector provides an output indicative of the absence of the signal. This example, however, are not exhaustive.

Fuse continuity detection

A method of charging a battery in a system involving a renewable energy source and operable to supply at least some electrical energy from the renewable energy source to a third party involves causing a charge controller operably connected to the renewable energy source to receive the electrical energy from the renewable energy source and operably connected to the battery, to charge the battery, using only the electrical energy from the renewable energy source, according to a charging sequence. The charging sequence includes at least a bulk charge period wherein the battery is charged at a relatively constant charging current, an absorption period following the bulk charge period wherein the battery is charged in an absorption mode, and a float period following the absorption period wherein the battery is charged in a float charging mode.

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Burnaby, Canada

Zoran Miletic