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IGBT Heating Steel Bar Making Machine Frequency Sweep Harmonic

Beijing Holland Trading Co., LTD
Beijing Holland Trading Co., LTD
City: Beijing
Province/State: Beijing
Tel: 86-10-68032755

IGBT Heating Steel Bar Making Machine Frequency Sweep Harmonic

Place of Origin : CHINA
Brand Name : BJH
Certification : JISG3137
Packaging Details : standard ocean shipping container
Delivery Time : 3 months
Payment Terms : 30%down payment,70%balance payment
Model Number : BHJT1
Price : USD300,000
Supply Ability : 100 sets per year before delivery
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IGBT Heating Steel Bar Making Machine Frequency Sweep Harmonic

IGBT Induction heating power supply inverter side control technology characteristics

  • Give full play to the advantages of the parallel inverter and the parallel harmonic oscillatio tank circuit, high power efficiency of the unit.
  • Inverter main circuit parameters are of the optimization design, rational circuit design, high reliability, power device layout is compact, be easy in maintenance of the equipment.
  • The inverter control circuit uses a high - speed intelligent programmable devices - CPLD to achieve fixed – angle and phase-locked control. CPLD real-time detects the converter state of IGBT, calculate the optimal control angle point via fixed-angle and phase-locking, and adjust the parallel resonant inverter’s phase-locked frequency and phase output to ensure that the inverter has been working in the best capacitive quasi-resonant state.
  • Digital control circuit with CPLD is with higher integration, better stability. Compared with the other analog phase-locked circuit, digital control technology can solve the analog circuit’s disadvantages like Parameter matching difficulties/Temperature drift/Un-flexible in control. CPLD gate delay is only 5ns , it can be accurate in fast controlling the inverter pulse. The inverter voltage of IGBT heating power supply with Fixed-angle control can be stabilized at a relative minimum value. The power of security is improved.
  • Start-oscillation type: frequency sweep

    When IGBT solid-state heating power supply start to work, the control circuit output separate-excitation pulse signals with changing frequency from high to low to trigger inverter IGBT. When the tank circuit signal is set up, automatically smoothly excess to self-excited state. Sweep frequency&Phase locking control circuit has a 100% start – up success ratio. The start process has no attach to elements, improve the performance of the frequent starting of the IGBT solid-state heating power supply.

  • Adopt plate structure to put the control power supply and control circuits in a plate, this greatly simplifies the external line, reducing the point of failure, improved anti-jamming capability of the small signal control circuitry.
  • With frequency display and fault display, frequency display accuracy can be controlled within ± 5Hz , which greatly facilitates commissioning and maintenance.
  • IGBT drive signals use advanced opto-isolation technology, the driving signal transmission has no attenuation, greatly ensure the consistency of the driving signal.
  • IGBT driver board device has function of over current, IGBT fault detection, pulse detection, load detection, to ensure the safety of the equipment.

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Bar Making Machine


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