TMEIC develops a new product for electrolyzer technologies

TMEIC has developed a new generation power electronics product to achieve a high current DC power supply for modern-day electrolyzer technologies. The Type-1 system uses a 24-pulse diode front-end rectifier for AC to DC conversion. In addition, the Type-2 system uses an IGBT front-end converter for AC to DC conversion. The IGBT front-end converter offers far superior benefits such as no harmonics, Q control by exporting +kVAr back to the grid, and a constant high 1.0 power factor. Followed by this, the IGBT-based DC to variable DC output voltage – high current chopper power circuit topology, which provides a very smooth much lower output DC current ripple, assists in ensuring the safe operation of the proton membrane, which provides both voltage and current control, and helps achieve superior energy efficiency of the electrolyzer stack.

On the input side, it has a high-power factor, irrespective of the load situation, and is independent of any power quality issues of the weak green energy grid. Employing the IGBT front-end converter option, it can export reactive power to the grid as well. This helps in eliminating the costly and space-consuming reactive power compensation equipment.

Due to a multi-pulse diode rectifier system, or IGBT converter system, the power line side harmonics are very low, which meets the IEEE519 specifications and does not need any harmonic filters.

Ultimately, TMEIC’s new innovative IGBT chopper high current rectifier is an ideal, techno-commercial competitive solution as an overall system and is suitable for all types of electrolyzers to produce green hydrogen.