Solar air conditioner control system with charging, control and automatic discharging functions

Abstract

The invention discloses a solar air conditioner control system with charging, control and automatic discharging functions. The solar air conditioner control system comprises a solar battery, a solar controller, a storage battery and a frequency variable air conditioner; the solar controller includes a charging circuit, a control circuit, a lightning protection circuit and a discharging circuit; the frequency variable air conditioner comprises an inversion circuit and a compressor; the control circuit includes a thirty-first diode to a thirty-third diode, a thirty-fourth voltage-regulator tube, a thirty-seventh voltage-regulator tube, a thirty-second resistor, a thirty-first MOS tube and an integrated voltage stabilizing chip; and the discharging circuit includes a forty-first switch, a forty-first relay, a forty-first resistor to a forty-fourth resistor, a forty-fifth discharging resistor and a forty-third electrolytic capacitor. The solar air conditioner control system of the invention has the advantages of effective lightning protection, improved safety, convenient installation, low cost, high reliability and great self-starting capability, and can assist in avoiding an endless-loop state, greatly shortening discharging time and saving system energy consumption.

Description

technical field [0001] The invention relates to the field of solar air conditioners, in particular to a solar air conditioner control system with charging, control and automatic discharge. Background technique [0002] The solar air conditioning system is composed of solar cells, controllers, storage batteries and inverter air conditioners. The existing solar air-conditioning system has the following defects: the lightning protection measures of the controller are not effective, which affects the safety performance of the system; the capacity and self-discharge of multiple single batteries of the battery are inevitably inconsistent, which affects the life of the battery. [0003] In addition, when there are several consecutive rainy days, the power of the battery is not enough to maintain the work of the powered equipment, which will affect the normal operation of the powered equipment. To solve this problem, the capacity of the battery and solar panels can be increased , s...

AI Technical Summary

Problems solved by technology

The existing solar air-conditioning system has the following defects: the lightning protection measures of the controller are not effective, which affects the safety performance of the system; the capacity and self-discharge of multiple single batteries of the battery are inevitably inconsistent, which affects the life of the battery

Since the discharge resistor is directly connected in parallel to the capacitor, when the circuit is powered on and in working state, the discharge resistor is always in the discharge state, which consumes power energy and causes the circuit to heat up, especially in high-voltage systems where the power supply voltage is high and the resistance of the discharge resistor is relatively high. Large, the discharge time can range from a few minutes to more than ten minutes, which may cause safety hazards. For example, it is impossible to determine whether the device is completely discharged during inspection and maintenance. Therefore, in practical applications, the discharge time of the remaining power of the circuit is required to be as short as possible.

Appropriately reducing the resistance value of the discharge resistor can shorten the discharge time of the remaining power when the power is off, but the power consumption will increase

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