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

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 of the 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 equipment to 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...

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

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