Control system of solar AC charging piles based on HCS08 single-chip microcomputer

Abstract

The invention discloses a control system of solar AC charging piles based on an HCS08 single-chip microcomputer. The control system uses the HCS08 single-chip microcomputer produced by Freescale as acontroller, and mainly consists of a power supply module, a drive module, a control guiding module, a communication module and a voltage and current detection module. The control system can make corresponding protection and alarm actions according to various conditions occurring in the charging process of electric vehicles. A low-voltage system adopts a two-circuit power supply mode, so that the control system can be powered not only by a power grid but also by a solar panel and a storage battery; and the power supply mode of the low-voltage system can be automatically switched according to the voltage of the storage battery. The AC charging piles in the standby state display the standby state by indicator lights instead of an LCD screen, thereby further reducing the standby power consumption of the AC charging piles. The control system optimizes PWM output and a detection circuit, and effectively reduces the communication error between the AC charging piles and vehicle-mounted chargers.

Description

technical field [0001] The invention relates to the field of electric equipment, in particular to a solar AC charging pile control system. Background technique [0002] Environmental problems caused by massive emissions of greenhouse gases have attracted more and more attention from society. At the same time, the shortage of fossil energy has led to rising oil prices, and the cost of using traditional internal combustion engine vehicles has continued to increase. Governments and automobile companies in various countries are actively researching new energy vehicles that can replace traditional internal combustion engine vehicles. Limited by the development of electric vehicle battery technology, the cruising range of electric vehicles has become a key problem restricting the further development and promotion of electric vehicles. As far as the current situation is concerned, when the battery capacity cannot be effectively expanded, safe, reliable and fast charging of electri...

AI Technical Summary

Problems solved by technology

Most of the existing AC charging pile control systems use 220V AC to convert 12V DC to power the control system. The AC charging pile maintains a high-voltage connection for a long time during the standby process, which will easily cause the system to heat up. waste of electricity

Some solar charging piles support battery charging, but limited by battery capacity and weather conditions, the long-term charging effect is not good

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