Utility interactive inverter with VAR dispatch capabilities

摘要

A VAR dispatch system. A central control system connected to a network is configured to receive data reflecting local variations in conditions on a power grid and to transmit system control commands over the network. A plurality of VAR dispatch devices are connected to the network and to the power grid. Each VAR dispatch device is configured to detect local variations in conditions on the power grid and to transmit the data reflecting such local variations to the central control system and to receive control commands from the central control system. Each VAR dispatch device is configured to store power and to output stored power to the power grid based on local variations in conditions on the power grid. Each VAR dispatch device is further configured to output stored power to the power grid when the VAR dispatch device receives system control commands from the central control system.

主权项

1. A volt ampere reactive (VAR) dispatch device comprising:
a control system connected to a network, wherein the control system is configured to receive system control commands over the network from an external system; a monitoring device operatively connected to the control system and to a power grid, wherein the monitoring device is configured to detect local variations in conditions on the power grid and wherein the monitoring device is further configured to communicate the local variations in conditions on the power grid to the control system; at least one power storage device operatively connected to the control system; an energy conversion device operatively connected to the control system, the power storage device, and the power grid, wherein the energy conversion device is configured to input power from the at least one power storage device and output the power to the grid varying at least one property of the power, wherein the energy conversion device is a VAR device configured to vary the power factor of the power output to the grid, wherein the control system is further configured to autonomously command the at least one power storage device and the energy conversion device to output the power to the power grid varying the at least one property of the power based on a local variation in conditions on the power grid that indicate a state of the power grid, wherein the control system is further configured to command the at least one power storage device and the energy conversion device to output the power to the power grid varying the at least one property of the power based on a system control command from the external system commanding the control system to output power to the power grid, and wherein the control system, the monitoring device, the at least one power storage device, and the energy conversion device are located proximate to a local portion of the power grid whose variations are being detected.