A solar AC charging pile control system based on hcs08 microcontroller

Abstract

The invention discloses a solar AC charging pile control system based on an HCS08 single-chip microcomputer. The control system uses a Freescale HCS08 single-chip microcomputer as a controller, and mainly consists of a power supply module, a drive module, a control guidance module, a communication module, and voltage and current detection. Module composition. The control system can make corresponding protection and alarm actions according to various conditions that occur during the charging process of the electric vehicle. The low-voltage system adopts a dual-circuit power supply mode, which can be powered by the grid or solar panels and batteries to power the control system, and can automatically switch the power supply mode of the low-voltage system according to the battery voltage. The AC charging pile in the standby state uses the indicator light instead of the LCD screen to display the standby state, further reducing the standby energy consumption of the AC charging pile. The control system optimizes the PWM output and detection circuit, which effectively reduces the communication error between the AC charging pile and the vehicle charger.

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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