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Intelligent control apparatus and method for high-power energy saving electromagnetic stove

A technology of intelligent control and electromagnetic cooker, which is applied in the direction of output power conversion device, induction heating control, AC power input conversion to DC power output, etc., can solve the problem of inability to accurately control the output power of electromagnetic cooker, inability to timely judge whether the pot has, Problems such as power output cannot be precisely controlled to achieve the effects of reducing electromagnetic radiation and electromagnetic pollution, enhancing safety and stability, and reducing harmonic pollution

Inactive Publication Date: 2010-11-17
WUHAN UNIV OF TECH
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fixed-range and fixed-frequency control method cannot accurately control the power output of each gear. When the grid voltage fluctuates, the size of the pot changes, the material of the pot changes, and the distance between the pot and the heating coil changes, the output power will vary under different conditions. There is a big difference, the output power of the induction cooker cannot be accurately controlled, the heating power of each gear is unstable, and the control accuracy is poor
In addition, during the heating process of the induction cooker, when the pot is taken away, the system often cannot judge whether there is a pot in time, so as to continue to work. In the case of no pot, it will cause a large amount of electromagnetic leakage and waste of electric energy, reducing the energy conversion efficiency

Method used

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  • Intelligent control apparatus and method for high-power energy saving electromagnetic stove
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  • Intelligent control apparatus and method for high-power energy saving electromagnetic stove

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but these embodiments should not be construed as limiting the present invention.

[0028]The main part of the present invention is composed of a controllable rectification filter module (AC-DC module), an inverter module (DC-AC module) and a microcomputer control module (Micro-computer control module) components (such as figure 1 shown); the controllable rectification filter module rectifies the three-phase AC into an adjustable DC voltage, and then converts the DC into a high-frequency AC through the inverter module, and converts the electrical energy into electromagnetic energy radiated to the bottom of the pot through the coil plate L4 to generate Eddy current, due to the thermal effect of eddy current to heat the pot, the microcomputer control module is the core of the whole system, used to collect data and send control information to each module.

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Abstract

The invention relates to an intelligent control device of a high power energy saving electromagnetic stove, and the method thereof, The intelligent control device comprises a controllable rectifying and filtering module, a contravariant module and a microcomputer controlling module, which is characterized in that a three-phase alternating current power supply is rectified into an adjustable direct current power supply through the controllable rectifying and filtering module ; the direct current power supply is inverted into a high frequency alternating current power supply through the contravariant module, and then the electric energy is converted into electromagnetic energy to be radiated to the bottom of a cookware, and vortex flow is generated, and the cookware can be heated because ofthe thermal effect of the vortex flow; the microcomputer controlling module is the core of the entire system, which is used for collecting data and transmitting control information to each module; the device adopts a series of advanced control policies, such as the trigger control of the rectifier bridge of an PI regulator, the intelligent self-adaptive constant power control, the intelligent soft-start control, the intelligent cookware detection control, etc., and thereby the working stability and the security of the electromagnetic stove are enhanced. The harmonic pollution of the equipmentto the electric network can be reduced to the utmost extent when the electric energy of the electromagnetic stove is saved, and the electromagnetic stove is suitable for various kitchens and dining rooms.

Description

technical field [0001] The invention belongs to a control device and a control method for an electromagnetic cooker, in particular to an intelligent control device and a method for a high-power energy-saving electromagnetic cooker. Background technique [0002] With the general improvement of people's living standards, the concepts of environmental protection and energy conservation have begun to take root in the hearts of the people. As a clean, energy-saving and easy-to-use kitchen equipment, the induction cooker has begun to replace the traditional stove and enter thousands of households. At present, most of the electromagnetic cookers sold on the market are low-power household electromagnetic cookers, and their power is mostly below 2000W. Because of their small power, it is difficult to meet the high-power requirements of school cafeterias, factories, hotels, hotels, institutions, and large commercial centers. need. [0003] At present, the existing high-power electro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M7/162H05B6/06H02M1/14H02M7/537
Inventor 全书海黄亮张立炎王志升叶亚宁谢长君陈启宏袁作威周彤全睿
Owner WUHAN UNIV OF TECH
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