DCA 270 V/1400 A IGBT DC Power Supply in Hydrogen Production by Water Electrolysis

Industry: Hydrogen production by electrolysis & hydrogen energy equipment  |  Reference sites: Dongfang Boiler, Dongfang Electric Corporation (Sichuan)  |  Product: DCA IGBT DC power supply 270 V/1400 A

Kulun Electric’s DCA 270 V/1400 A IGBT DC power supply is applied in hydrogen production projects by electrolysis, serving hydrogen energy equipment sites of Dongfang Boiler and Dongfang Electric Corporation (Sichuan). For electrolyzer requirements of stable DC output, fast response, wide-range regulation, low ripple control and continuous operation reliability, the supply uses IGBT high-frequency technology to provide a stable, controllable DC power solution for electrolytic hydrogen production systems.

1. Project Overview

2. Application Background

Electrolytic hydrogen production systems drive the electrolyzer with DC power. The supply’s output stability, response speed, ripple control and continuous operation capability directly affect electrolyzer operating status, hydrogen production efficiency and system safety.

At hydrogen energy equipment sites, electrolyzers typically run continuously for long periods and require current and voltage adjustment per process. The matching DC supply must provide stable high-current output, flexible control, communication integration and comprehensive protection to meet industrial reliability requirements of electrolytic hydrogen systems.

3. Requirements & Technical Challenges

For this application, the heating and power control system had to address the following points:

• Low voltage high current output: Electrolyzer operation needs stable DC supply; the supply must meet continuous output requirements at 270 V/1400 A.
• CV/CC control: The hydrogen process adjusts output per electrolyzer status, requiring stable constant voltage and constant current control.
• Low ripple output requirement: Better output quality helps the electrolyzer run smoothly, reducing current fluctuation effects on system status.
• Automation integration: Hydrogen systems usually connect to PLC, DCS or host computers; the supply must support remote control, status feedback and interlock protection.
• Continuous operation reliability: Hydrogen sites have high safety and stability requirements; the supply needs comprehensive protection and industrial-grade operation.

4. KULUN Solution

Kulun Electric configured the DCA IGBT DC power supply (270 V/1400 A) for the hydrogen production project, feeding the electrolyzer.

The DCA series IGBT DC power supply uses modular, high-frequency design and provides stable output, fast regulation and communication interfaces per hydrogen system control requirements — suitable for water electrolysis hydrogen production, hydrogen equipment testing and industrial DC power scenarios.

Key Features of the Solution

• Stable 270 V/1400 A output. Meets low voltage high current DC supply needs of electrolyzers, suiting continuous hydrogen production operation.
• CV/CC regulation. Supports voltage and current adjustment per process, adapting to different operating stages of hydrogen production.
• Fast dynamic response. IGBT high-frequency technology improves output regulation speed, adapting to electrolyzer load changes and control system adjustment.
• Low ripple output. Proper power topology and filtering provide smoother DC output conditions for the electrolyzer.
• Automation interfaces. Connects to PLC, DCS or host computer systems per project, enabling remote control, status monitoring and interlock protection.
• Industrial safety protection. Overvoltage, overcurrent, overheating, phase loss and short-circuit protection options meet hydrogen site operating requirements.

5. Reference Projects

The DCA 270 V/1400 A IGBT DC power supply is applied in electrolytic hydrogen production and hydrogen energy equipment projects of Dongfang Boiler and Dongfang Electric Corporation (Sichuan), providing stable DC power for electrolyzer systems.

Dongfang Boiler, Dongfang Electric Corporation (Sichuan) | Electrolytic hydrogen production site

In this project, the Kulun DCA IGBT DC power supply is configured around hydrogen system requirements for high-current output, low ripple, fast response and automation integration. The supply adjusts output parameters per hydrogen process requirements, adapting to electrolyzer operation and hydrogen equipment test applications.

6. Project Site

DCA 270 V/1400 A IGBT DC power supply applied in the electrolytic hydrogen project of Dongfang Boiler / Dongfang Electric

7. Results

After the DCA 270 V/1400 A IGBT DC power supply was applied to the electrolytic hydrogen system, the electrolyzer gained stable, adjustable, fast-responding DC output, meeting site requirements for continuous hydrogen power operation and automated control.

• Meets 270 V/1400 A-class DC supply requirements of electrolytic hydrogen production;
• Supports CV/CC output for different electrolyzer operating stages;
• Fast response helps coordinate with hydrogen system control strategies;
• Low ripple output helps improve electrolyzer operating smoothness;
• Communication and protection functions ease integration into hydrogen equipment automation systems.

Note: Actual performance varies with electrolyzer type, hydrogen process, site grid conditions, control system configuration, cooling method and operation management requirements.

8. Applicable Scenarios

DCA series IGBT DC power supplies can be selected by output voltage, current, power and control mode for a range of hydrogen energy and industrial low voltage high current DC power applications.

• Water electrolysis hydrogen production systems
• DC power for alkaline electrolyzers
• PEM electrolyzer testing and supporting power supplies
• Hydrogen energy equipment R&D test platforms
• Industrial DC power projects requiring low voltage high current CV/CC output

9. FAQ

Related Products & Technical Articles

This case uses the DCA IGBT DC power supply. For a comparison of options, see the article on the differences between SCR and IGBT power supplies.