Patent ID: 6747370
Filing Date: 2004-06-08
Classification: H02J,Y02E

Abstract:
A high-temperature secondary battery based energy storage and power compensation system, comprising:an A.C. electric power supply system; an electric load; an electric energy storage system including a high-temperature secondary battery and a power conversion system, wherein the electric power supply system, the electric load and the electric energy storage system are electrically connected, and from which, when operating normally, A.C. electric power is supplied directly from the electric power supply system to the electric load while the electric energy storage system operates to effect peak shaving and load leveling and a high speed switch provided between the electric power supply system and the electric energy storage system; wherein, when a voltage sag or a service interruption occurs in the electric power being supplied to the electric load from the electric power supply system, the voltage sag is immediately detected, the high speed switch is temporarily opened and electric power is immediately supplied from the electric energy storage system to the electric load in order to compensate for the voltage sag or the service interruption.