Power/energy management control system
US6528957B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 8, 2000 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | Sep 8, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power management system controls power and energy drawn by a load monitoring total drawn power and energy and modifying load usage. A power meter monitors power drawn by a load and provides a control circuit with an indication of power draw. The control circuit controls the power delivered to the load based on predetermined criteria, such a power threshold. Other sensors and controls such as environment status detectors or emergency commands are used by the control circuit to adjust the power provided to the load, or even to shut off power to the load. The control circuit can be a microprocessor based controller, or can be a remotely located personal computer which interacts with load drivers through a communication link. The control circuit can also have a profile for operation under various criteria, with profile parameters adjustable depending upon conditions. The profile parameters can be adjusted automatically by a control program, or by a user remotely. The control circuit can also drive the load at a known value and compare the power drawn with a stored reference value for the load. The system can thus be evaluated for failed or degraded components based on changes in the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.