Voltage equalization control system and method for energy storage power supply
A voltage equalization, energy storage power supply technology, applied in charge equalization circuits, battery circuit devices, current collectors, etc., can solve the problems of not collecting module current data, lack of temperature data collection, incomplete data collection, etc., to improve voltage balance Control efficiency, avoid insufficient computing space, and improve work efficiency
Active Publication Date: 2018-03-02
ZHEJIANG UNIV
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Problems solved by technology
Specifically, at present, most of the energy storage power supply modules that use supercapacitors as energy storage components do not collect module current data, and at the same time, the collection of temperature data is relatively lacking. Usually, a module only has 2 channels of temperature data collection, so it cannot be comprehensively collected. Master the status of the module
After installing multi-channel sensors, affected by interference and computing space, the management system often does not have the ability to collect and calculate in real time
Based on this, it is necessary to propose a method for better voltage balance control for supercapacitor energy storage power supplies to solve the problems of incomplete data collection and insufficient computing power in existing energy storage power supply management systems. performance of the power management system
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[0033] figure 1 It is a hardware schematic diagram of the equalization scheme mentioned in the present invention. refer to figure 1 Embodiments of the present invention are described in detail below with specific examples.
[0034] In one embodiment, an energy storage power supply voltage balance control system includes a measurement module, a voltage balance control module, a communication control module, and a central controller; the measurement module includes a current sampling module, a temperature sensor, a voltage measurement device, and a second A network interface; the current sampling module, the temperature sensor, and the voltage measuring device respectively measure the current, temperature and voltage data of all supercapacitor cells in the supercapacitor group to be balanced; the first network interface collects the collected current, temperature and voltage data It is transmitted to the central controller through the communication control module; the central ...
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The invention discloses a voltage equalization control method for a super capacitor energy storage power supply. The method is characterized by performing the sampling of voltage, current, and temperature and the on turning-on of an equalization module at different time, that is performing management in the circular order of sampling, determination, equalization, and sampling. In the sampling process, the voltage, the current, and the temperature information of a super capacitor individual in the energy storage power supply are acquired and uploaded to a central control unit through a CAN network. In the determination process, the central control unit classifies the super capacitors into three categories including normal, early warning, and alarm according to sensor data. In the equalization process, the central control unit activates voltage equalization on the individuals belonging to the normal and the early warning by means of a DC / DC module. On the other hand, the method is also applicable to the voltage equalization management of an energy storage power supply composed of hybrid super capacitors, improves the operating efficiency and safety performance of the super capacitorenergy storage power supply, and has a good application prospect on energy storage electric vehicles.
Description
technical field [0001] The invention relates to the technical field of energy storage devices, in particular to an energy storage power supply voltage balance control system and method. Background technique [0002] At present, some achievements have been made in the management system design of energy storage power supply at home and abroad, but there is still room for further improvement. Specifically, at present, most of the energy storage power supply modules that use supercapacitors as energy storage components do not collect module current data, and at the same time, the collection of temperature data is relatively lacking. Usually, a module only has 2 channels of temperature data collection, so it cannot be comprehensively Master the status of the mod. After installing multi-channel sensors, the management system often does not have the ability to collect and calculate in real time due to the influence of interference and computing space. Based on this, it is necessa...
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IPC IPC(8): H02J7/00H02J7/34
CPCH02J7/0014H02J7/345
Inventor 孙志锋卢睿陈声亮张军凯
Owner ZHEJIANG UNIV