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Title: Bimode uninterruptible power supply compatibility in renewable hybrid energy systems

Journal Article · · IEEE Aerospace and Electronic Systems Magazine; (USA)
DOI:https://doi.org/10.1109/62.59265· OSTI ID:6542807
 [1];  [2]
  1. Sandia National Labs., Albuquerque, NM (USA)
  2. 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