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Intelligent variable-speed control system of small-sized direct-current motor for photovoltaic industry

A DC motor and control system technology, applied in the direction of DC motor rotation control, photovoltaic power generation, excitation or armature current control, etc., can solve the problems of inaccurate control, affecting the use effect, etc., to achieve broad prospects, taking into account efficiency and power consumption cost effect

Inactive Publication Date: 2022-04-08
ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The existing motor variable speed drive control is not accurate enough, which affects the use effect

Method used

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  • Intelligent variable-speed control system of small-sized direct-current motor for photovoltaic industry
  • Intelligent variable-speed control system of small-sized direct-current motor for photovoltaic industry
  • Intelligent variable-speed control system of small-sized direct-current motor for photovoltaic industry

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Experimental program
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Effect test

Embodiment

[0033] see Figure 1-7 , the present invention provides a technical solution: a small DC motor intelligent variable speed control system for the photovoltaic industry, including:

[0034] A Hall sensor, the Hall sensor detects the motor speed and outputs a detection square wave;

[0035] A single-chip microcomputer, the Hall sensor is connected with the single-chip microcomputer, and the detection square wave is output to the single-chip microcomputer;

[0036] A power supply, the power supply is externally connected to a PWM circuit and an H-bridge drive circuit, and the single-chip microcomputer is connected to the PWM circuit and the H-bridge drive circuit;

[0037] The single-chip microcomputer changes the duty ratio of the PWM circuit, and the PWM circuit controls the motor speed;

[0038] The single-chip microcomputer counts the number of square wave pulses within 1 second, calculates the speed of the motor, and realizes the feedback control of the DC motor.

[0039] ...

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Abstract

The invention belongs to the technical field of motor variable-speed control, and particularly relates to a photovoltaic industry-oriented intelligent variable-speed control system for a small-sized direct-current motor, which comprises a Hall sensor for detecting the rotating speed of a motor and outputting a detection square wave; the Hall sensor is connected with the single-chip microcomputer, and the detection square waves are output to the single-chip microcomputer; the power supply is externally connected with the PWM circuit and the H-bridge driving circuit, and the single chip microcomputer is connected with the PWM circuit and the H-bridge driving circuit; the single-chip microcomputer changes the duty ratio of the PWM circuit, and the PWM circuit controls the rotating speed of the motor. The single-chip microcomputer counts the number of square wave pulses within one second, calculates the speed of the motor, and achieves the feedback control of the DC motor. The intelligent speed regulating and changing function is achieved through two-way self-adaptive control, two-way closed loops are mutually independent, power consumption is controllable, a single-way direct control framework or a two-way closed-loop control framework can be provided, and efficiency and power consumption cost can be taken into consideration.

Description

technical field [0001] The invention relates to the technical field of variable speed control of motors, in particular to an intelligent variable speed control system for small DC motors oriented to the photovoltaic industry. Background technique [0002] In a typical photovoltaic and energy storage system, it consists of solar cells, batteries, inverters and solar controllers. In the new energy application system, the traditional optimized technical route can be combined with the application characteristics of the new energy system in combination with the characteristics of specific application scenarios, so as to complement each other and form personalized system configuration and application. [0003] At present, solar panels are arranged statically in photovoltaic stations, energy storage centers and household photovoltaic systems. Its utilization efficiency of light energy is not high. [0004] However, according to the difference in time and sunshine, combined with a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P7/03H02P7/29H02S20/32H02S40/30
CPCY02E10/50
Inventor 黄伟刘进刘三民赵森严
Owner ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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