A motor control device of a photovoltaic cleaning device

Abstract

The invention discloses a motor control device of a photovoltaic cleaning device, which includes a MCU control circuit, a relay contact commutation circuit, A thyristor contactless drive circuit and aDC 220V controllable power supply, the MCU control circuit is connected with the relay contact commutation circuit, The thyristor contactless driving circuit, and the DC 220V controllable power supply, the DC 220V controllable power supply is connected with the thyristor contactless driving circuit, and the thyristor contactless driving circuit is connected with the relay contact commutation circuit. The invention adopts the contactless driving circuit composed of thyristor and the contact commutation circuit composed of relay, The motor control requirement is perfectly realized, which not only has the fast switching speed of the contactless driving circuit, but also completely avoids the strong spark of the contact commutation circuit formed by the relay when the contact is switched, sothat the mechanical contact of the relay will not be invalidated due to ablation, and the design difficulty is obviously reduced.

Description

Technical field: [0001] The invention belongs to the technical field of control equipment, and in particular relates to a motor control device of a photovoltaic cleaning device. Background technique: [0002] The automatic cleaning of planes or platforms erected outdoors is one of the problems that plague people. Among them, the automatic cleaning of the surface of the solar panel in the photovoltaic power station is a problem that plagues people. [0003] People once considered setting up a cleaning trolley on the solar panel, and utilizing the cleaning trolley to realize automatic cleaning of the solar panel. Usually, the cleaning trolley is pulled by a traction rope and moves along the established guide rail. Driven by the traction rope, the trolley moves along the guide rails; this type of cleaning equipment is usually located in remote areas because the equipment is outdoors, so it is usually designed with remote control, which can self-detect the operating status and...

AI Technical Summary

Problems solved by technology

The trolley moves along the guide rails driven by the traction rope; this type of cleaning equipment is usually located in remote areas because the equipment is outdoors, so it is usually designed with remote control, which can self-detect the operating status and perform self-cleaning. The intelligent control system for protection can improve the practicability of the equipment and reduce the cost of operation and maintenance; while the similar technologies on the market currently use either a pure non-contact motor control system or a purely mechanical contact such as a relay. There is a contact motor control system; generally, the former can achieve no spark, and the contact switching speed is fast, but the design is difficult; while the latter is less difficult, but it cannot overcome the strong spark when the contact is switched, which often leads to damage due to contact ablation. Switching fails, and the switching speed is slow

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