Energy storage control system and method thereof

Abstract

The invention provides an energy storage control system and a method thereof. The energy storage control system comprises an AC / DC rectification module, an isolation transformer, a bidirectional DC / DC conversion module, a switch circuit and a first super capacitance module group. When a power grid has a fault and power outage is generated, the first super capacitance module group provides power for a direct current load through a conducted switch circuit. After a voltage is decreased into a first preset scope and the switch circuit is disconnected, through the bidirectional DC / DC conversion module, the first super capacitance module group continuously provides power for the direct current load. The first super capacitance module group possesses advantages that a service life is long, charging time is short and a operational temperature range is wide so as to be suitable for being a stand-by power supply of the energy storage control system. And the first super capacitance module group is directly connected to the direct current load through a power supply line with a low impedance so that power supply losses are reduced and power supply efficiency is increased. After the voltage is decreased, the bidirectional DC / DC conversion module amplifies the voltage and then provides for the direct current load so as to satisfy a voltage demand of the direct current load and increase the power supply efficiency.

Description

technical field [0001] The present invention relates to the technical field of power systems, and more specifically, to an energy storage control system and method. Background technique [0002] The power operating power supply is an indispensable part of the power system, and it is the uninterrupted supply of DC power to control loads such as control, signal equipment, measurement, relay protection, automatic devices, emergency lighting, circuit breakers, and closing operations. equipment. Electric operating power supply mainly includes power exchangers and energy storage devices, among which batteries are more commonly used energy storage devices in electric operating power supplies. [0003] figure 1 The operating power supply currently utilizes the power stored in the storage battery, including an isolation transformer 101 , an AC / DC rectification module 102 and a storage battery 103 . When the grid voltage supplies power normally, the AC / DC rectification module 102 r...

AI Technical Summary

Problems solved by technology

[0004] Although figure 1 The energy storage operating power supply of the battery shown is simple in structure and mature in technology, but there are still many deficiencies, such as short service life of the battery 103, long charging time, inability to fully supply power and narrow operating temperature range, etc., and waste batteries will also Pollution to the environment, so it still needs to be improved

Images