Parallel bidirectional DCDC battery formation capacity grading detection power supply

Abstract

The invention provides a parallel bidirectional DCDC battery formation capacity grading detection power supply. The power supply comprises a bridge type circuit module, a voltage loop and current loopcontrol circuit module, an electric signal input and conversion circuit, an electric signal output circuit module, an MCU circuit module, a system bus communication circuit module and an auxiliary power supply module. The invention has the beneficial effects that (1) the charging and discharging of a battery cell is controllable and the energy bidirectional flow is achieved; (2) the high-reliability and high-anti-interference CAN communication is adopted for communication; (3) the energy is recycled, and energy conservation and environmental protection are achieved; and (4) the charging and discharging power requirements of the battery cells with different power levels can be met by a parallel technology.

Description

[0001] 【Technical field】 [0002] The invention relates to a battery composition capacity detection power supply, in particular to a parallel bidirectional DCDC battery composition capacity detection power supply. [0003] 【Background technique】 [0004] As batteries are more and more widely used in the main production parts of the country and new energy technologies are developing rapidly, consumers and manufacturers have higher requirements for the industrialization capacity of battery mass production and battery product quality, which are inseparable from batteries. Composition technology has been paid more and more attention. The so-called composition capacity is to charge and discharge the battery many times before leaving the factory. Now a relatively common way is to consume the internal energy of the battery through resistance, resulting in a huge waste of power, and the heat generated also has a huge impact on the temperature of the environment and has a certain impac...

AI Technical Summary

Problems solved by technology

Now a relatively common way is to consume the internal energy of the battery through resistance, resulting in a huge waste of power, and the heat generated also has a huge impact on the temperature of the environment, which also has a certain impact on the performance of the battery.

Another way is to use controllable inverter power devices. Although energy feedback to the grid is realized, the price is low, and the technology is stable, but the frequency of the grid is industrial frequency, which requires the use of large inductance, slow adjustment speed, and serious overshoot. The power factor is low, and the incoming current does not meet the grid standards, so it must be eliminated;

[0005] The demand for batteries in modern society is increasing, especially the production capacity of power batteries and energy storage batteries is increasing, and the energy consumed in the process of battery formation and capacity is increasing. The cost of electric energy accounts for about 26% of the production cost. At present, the battery capacity detection power supply has the following defects: (1) charging and discharging during the battery capacity process; (2) electrical parameter collection during the battery capacity process and communication; (3) recycling and utilization of battery discharge energy in the process of battery formation and capacity; (4) high-power battery formation and capacity

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