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Intelligent variable frequency speed control device and control method applicable to pulse load

A technology of frequency conversion speed regulation and control method, which is applied in control system, motor control, AC motor control, etc., which can solve the problems of low cost performance, mismatch between speed regulation performance and specific needs, and high price, so as to save installation space , high cost performance and low production cost

Active Publication Date: 2019-07-26
东营杰胜电气科技有限公司
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Problems solved by technology

[0006] Most of the general-purpose inverters on the market now adopt variable voltage and variable frequency control methods, and treat loads of different natures without distinction. high

Method used

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  • Intelligent variable frequency speed control device and control method applicable to pulse load
  • Intelligent variable frequency speed control device and control method applicable to pulse load
  • Intelligent variable frequency speed control device and control method applicable to pulse load

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Embodiment Construction

[0044] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0045] 1. An intelligent frequency conversion speed control device suitable for pulse loads

[0046] The input of the device is single-phase alternating current, and the output is three-phase alternating current with adjustable frequency and voltage; and the hardware circuit of the intelligent frequency conversion speed regulating device is composed of a main circuit and a control circuit, see figure 1 , wherein the main circ...

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Abstract

The invention provides an intelligent variable frequency speed control device applicable to a pulse load. The intelligent variable frequency speed control device is characterized in that the input ofthe intelligent variable frequency speed control device is a single-phase alternating current, and the output of the same is a three-phase alternating current with adjustable frequency and voltage; the hardware circuit of the intelligent variable frequency speed control device is composed of a main circuit and a control circuit. The invention also provides a control method for the intelligent variable frequency speed control device applicable to the pulse load; the control method is characterized by being implemented through controlling the hardware circuit via software algorithm; and the software algorithm is composed of a main program and a sub-program. The control device and control method provided by the invention have the beneficial effects as follows: the intelligent variable frequency speed control device provided by the invention can achieve continuous frequency conversion, smooth in change of rotation speed, good in stability, low in production cost and high in performance cost ratio; and the control method provided by the invention can be popularized and applied to household appliances including three-phase asynchronous motors, can reduce the production cost of the household appliances, and has the wide commercial prospect.

Description

technical field [0001] The invention belongs to the technical field of speed regulation and control of three-phase asynchronous motors, and in particular relates to an intelligent frequency conversion speed regulation device suitable for pulse loads and a control method thereof. Background technique [0002] With the development of science and technology, motors are used more and more widely, and the load forms used are also diversified. One of the most important forms is the pulse load form. For example, it is widely used in fitness equipment such as treadmills. With pulse load. [0003] The pulse-type load in the treadmill means that the load torque generated by the user when running or walking is a pulse-type load torque, which is mainly determined according to the frequency, duty cycle and load torque amplitude of the pulse-type load torque. describe. [0004] The operating characteristics of the motor under the pulse load are very different from those of the ordinary ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P27/08H02P23/00
CPCH02P23/00H02P27/08H02P2207/01
Inventor 王舵李琳史富斌
Owner 东营杰胜电气科技有限公司
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