Bimode uninterruptible power supply compatibility in renewable hybrid energy systems
- Sandia National Labs., Albuquerque, NM (USA)
- Abacus Controls, Inc., Somerville, NJ (USA)
Inverters installed in renewable hybrid energy systems are typically used in a stand-alone mode to supply ac power to loads from battery storage when the engine-generator is not being used. Similarities in topology and in the performance requirements of the standby uninterruptible power supply (UPS) system and the hybrid system suggest the UPS could be used in hybrid energy systems. Another alternative to inverters with add-on charging circuits or standby UPS hardware is the Bimode UPS. The bimode UPS uses common circuitry and power components for dc to ac inversion and battery charging. It also provides an automatic and nearly instantaneous ac power transfer function when the engine-generator is started or stopped. The measured operating and transfer characteristics of a bimode UPS in a utility system and in a hybrid system are presented. The applicability of the bimode UPS to hybrid systems and its compatibility in a PV/engine-generator hybrid system are given.
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6542807
- Journal Information:
- IEEE Aerospace and Electronic Systems Magazine; (USA), Vol. 5:8; ISSN 0885-8985
- Country of Publication:
- United States
- Language:
- English
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POLICY AND ECONOMY
24 POWER TRANSMISSION AND DISTRIBUTION
14 SOLAR ENERGY
AC SYSTEMS
AUTOMATION
HYBRID SYSTEMS
INVERTERS
INSTALLATION
BATTERY CHARGING
ELECTRIC GENERATORS
OFF-PEAK ENERGY STORAGE
ELECTRICAL EQUIPMENT
ENERGY STORAGE
ENERGY SYSTEMS
EQUIPMENT
POWER SYSTEMS
STORAGE
290700* - Energy Planning & Policy- Transport & Storage
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240100 - Power Systems- (1990-)
140704 - Solar Thermal Power Systems- Total Energy & Hybrid Systems- (1980-)