IPM technology development: In 2009, Ningbo Haitian Electric Furnace collaborated with Huanhu Electric Furnace (Dai Guangzu team) to launch IGBT power supply, which further improved the energy-saving effect and saved 6% energy compared to thyristor power supply. In 2019, a new dual DSP controlled IPM power supply was launched, which does not require reactors and saves 10% -20% energy compared to previous thyristor power supplies. The IPM output power covers 5KW-6300KW, and this series of power supplies has been successfully applied to 10KG-12T medium frequency electric furnaces. The Haitian IPM medium frequency melting power supply has the advantages of a high-power overall layout, unique module design, and unique power control method. With the successful launch of the Haitian IPM module high-power power supply, other domestic manufacturers of thyristor medium frequency power supplies have imitated it. Within five years, IPM power supplies will replace all thyristor power supplies.
Top 14 Reasons to Choose Haitian IPM Medium Frequency Power Supply
1. The IPM module power supply of Haitian electric furnace is more stable and reliable than traditional thyristor power supply, and the replacement of accessories is more convenient and easy to operate than thyristor power supply. The price of accessories is almost the same as that of thyristor power supply. The key is that the IPM power supply has several times longer service life than thyristor power supply. 2. Overcoming the high environmental requirements of IGBT in the past, the IPM of Haitian electric furnace can be used in any environment without being easily damaged. 3. The Haitian IPM intermediate frequency power supply has a "self diagnosis" function, which displays the cause of the fault and the location of the fault, avoiding the trouble of blind fault finding by maintenance personnel in the past. And maintenance personnel can remotely control and monitor. 4. The Haitian IPM intermediate frequency power supply adopts dual DSP (American) control, fully digital fuzzy control, and eliminates the need for reactors, which is more energy-efficient than other IGBT power supplies. 5. The Haitian IPM medium frequency melting system is designed using MATLAB software simulation to ensure the highest efficiency, reliability, and stability of the entire equipment. 6. The Haitian IPM medium frequency melting furnace saves 10-20% of electricity compared to traditional thyristor power sources, reducing melting time by 10-20 minutes per furnace. By saving electricity costs within a year, the equipment investment can be recovered. 7. The Haitian IPM medium frequency melting electric furnace comes with a free warranty of 18 months (no warranty for furnace leakage). 8. The Haitian IPM adopts a modular design, which solves the problem of small IGBT power supply in the past. The power can cover 10KW-10000KW and higher, and the power can be infinitely expanded, breaking through the technical bottleneck of instability when IGBT power is large in the past. 9. Disassembling the Haitian IPM module does not affect the overall operation of the machine. The N+1 redundancy theory design increases the reliability of each redundant board by an order of magnitude. Each module unit operates independently and intelligently distributes current according to output power. Any module failure will automatically exit, and the remaining units will automatically redistribute current. 10. Haitian IPM multi-layer stacked busbar design, the multi-layer busbar is designed through MATLAB software simulation, cleverly solving the problem of busbar heat dissipation, distributed inductance influence, heat dissipation and peak voltage impact on IPM, making IPM more reliable, stable and not easily damaged. 11. Haitian IPM adopts ZVS and ZIS control technology. When ZPM is switched, zero voltage and zero current are used to turn off and on, reducing IPM switching losses, improving equipment efficiency, and being more energy-efficient. 12. The reasonable layout of Haitian IPM not only improves equipment efficiency, but also makes maintenance more convenient, solving the complicated process of replacing IGBT modules in the past and greatly reducing maintenance time. 13. Haitian IPM adopts a new type of signal sampling, which solves the problem of signal sampling for high-power IPM control. 14. Haitian IPM adopts multiple rectifiers and inverters. Damaging any group of sorting inverters in a one to many situation does not affect the overall operation of the machine.