Storage battery protective device in EPS system
A protection device and storage battery technology, which is applied in the direction of battery circuit devices, emergency protection circuit devices, circuit devices, etc., can solve problems such as long-term power outages, reduced battery life, and battery over-discharge, to achieve high safety, prevent scrapping or life expectancy The effect of reduction and low production cost
Inactive Publication Date: 2016-04-27
BAINADE CHINA YANGZHOU
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Problems solved by technology
[0002] In harsh power supply occasions, the EPS system is more and more widely used. In the EPS system, the battery is an indispensable device. However, because the operating environment of the EPS system is generally relatively harsh, long-term power outages occur from time to time. , especially in the underdeveloped highway lighting system in the west, often long-term power outages lead to over-discharge of the battery. Although the EPS system itself has a protection function, the work of the EPS system itself also uses electricity. Although the current is small, it will reduce the battery power. The life of the battery cannot fundamentally solve the problem of battery over-discharge
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[0007] A battery protection device in an EPS system, the EPS system includes a rectifier module, an inverter module and a battery pack connected through a DC bus, the protection device includes a contactor, and the contactor bus is connected in series to the rectifier module On the DC bus between the battery pack and the battery pack, the trigger end of the contactor is connected to the output end of the inverter module.
[0008] After the EPS is turned on, the mains power is rectified by the rectifier module to form a DC voltage, which is supplied to the inverter module all the way. At this time, the inverter starts, the inverter voltage reaches 220Vac, the contactor pulls in, and the DC voltage charges the battery pack through the contactor. After the mains power is cut off, the battery pack supplies power to the inverter module through the contactor, and the inverter module outputs 220Vac for the load, while keeping the contactor closed. Close, the contactor is disconnected...
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The invention relates to a storage battery protective device in an EPS system. The EPS system comprises a rectifying module, an inverting module and a storage battery pack which are connected through a direct current bus, wherein the protective device comprises a contactor, a contactor bus is serially connected to the direct current bus between the rectifying module and the storage battery, and a trigger end of the contactor is connected with an output end of the inverting module. The storage battery protective device is simple in structure, easy and convenient to install, high in safety and low in production cost; storage battery abandonment or shortened light caused by overdischarge of the storage battery can be prevented just by additionally installing the contactor, and power supply that the storage battery provides to the EPS system is stopped after storage battery protection; and the storage battery protective device is more energy-saving, and greatly improves reliability of the EPS system.
Description
technical field [0001] The invention relates to a protection device, in particular to a storage battery protection device in an EPS system. Background technique [0002] In harsh power supply occasions, the EPS system is more and more widely used. In the EPS system, the battery is an indispensable device. However, because the operating environment of the EPS system is generally relatively harsh, long-term power outages occur from time to time. , especially in the underdeveloped highway lighting system in the west, often long-term power outages lead to over-discharge of the battery. Although the EPS system itself has a protection function, the work of the EPS system itself also uses electricity. Although the current is small, it will reduce the battery power. The service life of the battery cannot fundamentally solve the problem of battery over-discharge. Contents of the invention [0003] In order to solve the above problems, the present invention provides a battery prote...
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IPC IPC(8): H02H7/18H02J7/02H02J7/34
Inventor 刘杰
Owner BAINADE CHINA YANGZHOU