Control strategy of storage battery non-damage rapid balanced charger

Abstract

The invention relates to a storage battery non-damage rapid balanced charger and a control strategy thereof, belonging to a switch power supply type charger and a control method thereof. The storage battery non-damage rapid balanced charger comprises a utility power interface, a charging interface, a rectification circuit, a filtering voltage-stabilizing and current-stabilizing circuit, a micro-processing unit, a power factor correcting circuit, an intelligent half-bridge chopper circuit, a reverse-pole discharge circuit and a storage battery parameter dynamic sampling circuit; the control strategy comprises the steps that when the utility power interface is connected with utility power, the micro-processing unit can acquire the information of a storage battery by the storage battery parameter dynamic sampling circuit; after the sampling information is acquired, the micro-processing unit is used for pretreating the sampling information, and the maximum initial charging current which is allowed by the storage battery at the moment is calculated; and after the maximum initial charging current value is obtained, the micro-processing unit can be used for rapidly charging the storage battery. The charger can track the dynamic change of the internal parameters of the storage battery immediately according to the control strategy, and leads a charging object of the storage battery to be controlled to be a unit single body by adopting a secondary wave-chopping sectional control method and a positive and negative pulse rapid charging technology, thus having the advantages of non-damage rapid balanced charging and the like.

Description

technical field [0001] The invention relates to a control strategy of a battery damage-free fast equalization charger, which belongs to a switching power supply charger and a control method. Background technique [0002] In the past, battery chargers usually adopted the overall charging strategy, that is, referring to the mature standard three-stage charging technology of single batteries, and designing a charging strategy for battery packs through simple mathematical calculations. This method basically adapts to the needs of mass customers. demand, formed a large-scale product and popularized it. However, with the continuous improvement of social living standards and the relative deterioration of environmental resources, people have higher and higher requirements for various means of production in life. The existing chargers can no longer meet the requirements of customers. The main reasons are as follows What time is it: [0003] ① The cycle life of the battery is too sh...

AI Technical Summary

Problems solved by technology

[0003] ① The cycle life of the battery is too short, generally 1-3 years;

[0004] ②The charging speed of the battery is too slow, generally 8-10 hours;

[0005] ③ The frequency of outdated batteries in the battery pack is too high, which shortens the scrap cycle of the overall performance of the battery pack

[0007] Faced with such a result, many charger research units have developed a series of gratifying results through various methods, such as the popular pulse fast chargers and natural balance chargers on the market. However, these products should not Exaggerating its function, or the function is incomplete, and the battery will inevitably be damaged if it appears fast, and the balance will inevitably fail to reach the fast design contradiction.

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