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Battery control system, and a battery system and solar power system using the control system

A battery control and control circuit technology, applied in battery temperature control, battery circuit device, arrangement of multiple synchronous batteries, etc., can solve problems such as wasting power

Inactive Publication Date: 2020-01-17
SIGNIFY HLDG BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this wastes power and requires additional hardware

Method used

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  • Battery control system, and a battery system and solar power system using the control system
  • Battery control system, and a battery system and solar power system using the control system
  • Battery control system, and a battery system and solar power system using the control system

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Embodiment Construction

[0070] The present invention provides a battery control system for use with a battery and having a converter for charging and / or discharging the battery. The converter is thermally coupled to the battery, and the temperature of the battery is sensed. Control circuitry is provided for controlling the efficiency or power loss of the converter depending on the temperature of the battery sensed by the sensor, thereby altering the level of heat generation and thus the transfer from the converter to the battery. In this way, the battery temperature is controlled so that the life time of the battery can be extended. It utilizes existing converters to transfer thermal energy, making a separate heater unnecessary. A controller circuit is preferably used to control the efficiency or power loss of the converter, provided that: the input power to the converter is maintained while the battery is being charged; or the output power of the converter is maintained while the battery is being d...

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Abstract

A battery control system is used with a battery, and has a converter to charge and / or discharge the battery. The converter is thermally coupled to the battery, and the temperature of the battery is sensed. A control circuit is provided for controlling the efficiency or power loss of the converter according to the temperature of the battery sensed by the sensor, thereby to alter the level of thermal heat generation, and in turn, transfer from the converter to the battery. In this way, the battery temperature is controlled so that the life time of the battery can be extended. It makes use of theexisting converter to deliver thermal energy, so that a separate heater is avoided.

Description

technical field [0001] The present invention relates to battery control systems, such as circuits that control the charging and discharging of rechargeable batteries. Background technique [0002] Rechargeable batteries are used in numerous applications. For example, they are used as temporary energy storage devices in systems with time-varying power output and time-varying energy input. For example, lighting fixtures are increasingly provided with integrated batteries. These batteries are charged by solar energy, which is usually available when lighting is not needed and lighting is needed when it is not. They are therefore used as energy storage elements to account for the time delay between the availability of energy for charging and the demand for output power. [0003] For outdoor light fixtures in particular, but more generally for outdoor systems, the battery will typically be exposed to ambient temperature. [0004] The performance of rechargeable batteries such ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/35H01M10/615H02J7/00
CPCH02J7/35H01M10/615H01M10/443H01M10/486H01M10/63H01M10/667H02J2207/20H02J2300/26H02J3/381Y02E10/56Y02E60/10H02J7/007194H01M10/6565H01M10/465H02J7/0019
Inventor G.玛吉P.R.米什拉
Owner SIGNIFY HLDG BV