초록 ▼

A low cost voltage disturbance mitigation system is capable of providing continuous power to a load despite short interruptions or sag disturbances of the utility power. The interruption and sag mitigation system makes use of a combination of unique thermal and electrical properties of magnetic comp

A low cost voltage disturbance mitigation system is capable of providing continuous power to a load despite short interruptions or sag disturbances of the utility power. The interruption and sag mitigation system makes use of a combination of unique thermal and electrical properties of magnetic components, power semiconductor devices, and high-discharge-rate energy storage devices. It also facilitates a modular solution that can be easily and economically scaled up or down for use over a wide range of voltage and power levels, e.g., 480 V to 36 kV and 500 kVA to 10,000 kVA.

대표청구항 ▼

[ What is claimed is:] [1.] A system for mitigating disturbances and interruptions in unregulated, disturbance-prone electrical input power for energizing a load coupled to an output terminal, comprising:(a) a plurality of back-up energy modules, each back-up energy module comprising a DC energy sou

[ What is claimed is:] [1.] A system for mitigating disturbances and interruptions in unregulated, disturbance-prone electrical input power for energizing a load coupled to an output terminal, comprising:(a) a plurality of back-up energy modules, each back-up energy module comprising a DC energy source operatively coupled to a charging circuit and a DC-AC inverter;(b) a first electronically controllable switch for conducting current from an input terminal to the load coupled to the output terminal;(c) a second electronically controllable switch operatively coupled to the back-up energy module for conducting current from the back-up energy module to the load; and(d) a system control module operatively coupled to the first and second switches and to the back-up energy module, wherein the system control module controls the operation of the first and second switches and the back-up energy module, whereby current is deliverable from the input terminal to the load during normal operations and from the back-up energy module to the load during an occurrence of an interruption or disturbance of a short duration in the unregulated input power;wherein the first electronically controllable switch comprises a normally open switching device and a normally closed switching device (S2A) coupled in parallel to the normally open switching device.