igbt induction heating smelting power supply digital control system
A digital control system, induction heating technology, applied in the direction of control/regulation system, electrical components, adjustment of electrical variables, etc., can solve the problems of low power factor, easy damage of IGBT, poor performance of reliable and continuous operation of equipment, etc., to improve work efficiency Efficiency and Robustness, Effects of Improved Stability and Efficiency
Active Publication Date: 2021-11-02
淮北市华明工业变频设备有限公司
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Problems solved by technology
[0003] But the IGBT induction heating power supply also has many disadvantages, such as the power element IGBT is easily damaged, the power factor is low, and the reliable and continuous operation performance of the equipment is not good, etc.; a large part of the above shortcomings can be avoided by optimizing the digital control system of the power supply; therefore, it is urgently needed A Digital Control System of IGBT Induction Heating Melting Power Supply
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[0080] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. 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.
[0081] see figure 1 , IGBT induction heating melting power supply digital control system, including DSP core board and control module;
[0082] The DSP core board is provided with a communication interface; the communication interface includes a panel parameter interface, a touch screen communication interface, a DSP core board power supply interface, a logic switch control interface, a signal output interface, a thyristor control interface, a level conversion interface, an extended reserved interface and A / D convers...
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The invention discloses a digital control system for an IGBT induction heating and smelting power supply, relates to the technical field of power supply control, and solves the technical problem of poor equipment operation performance caused by the instability of the power control system; the invention sets a main control unit of the power supply and elaborates on it The control steps of the main control unit of the power supply are provided. This setting can carry out early warning detection of the failure of the power supply, which helps to improve the work efficiency and robustness of the present invention; , initialize the flag bit and the control panel; set the start flag bit to 1 and clear the stop flag bit; set the start light to be on, set the stop light to be off; set the main contactor to be closed , the FPGA control signal is set high; the setting of the start subunit lays the foundation for the efficient operation of the present invention; the present invention sets the PID subunit, which helps to improve the stability and high efficiency of the present invention.
Description
technical field [0001] The invention belongs to the technical field of power supply control, in particular to a digital control system for an IGBT induction heating melting power supply. Background technique [0002] IGBT induction heating power supply is widely used in metal heat treatment, quenching, annealing, diathermy, smelting, welding, heat sleeve, semiconductor material refining, plastic heat sealing, baking and purification, etc.; using the induced current generated under the action of high frequency magnetic field Heating is caused by the conductor itself heating up. Compared with furnace heating, combustion heating or electric heating wire heating, induction heating has the advantages of significant energy saving, non-contact, fast speed, simple process, and easy automation. [0003] But the IGBT induction heating power supply also has many disadvantages, such as the power element IGBT is easily damaged, the power factor is low, and the reliable and continuous op...
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IPC IPC(8): H02M1/36H02M3/157
CPCH02M1/36H02M3/157
Inventor 王依民贺书航
Owner 淮北市华明工业变频设备有限公司