DONG-IN ENSIS is a designated hydrogen specialist company (Ministry of Trade, Industry and Energy, Korea). We supplied the VFD, PLC and UPS control system for a commercial liquid hydrogen refueling station and continue its operation pilot. With five patents on liquid hydrogen station control and a hydrogen-powered vessel R&D project, we support safe operation and data management of hydrogen equipment.
The five patents cover power control logic, operational safety, energy efficiency optimization, equipment protection algorithms and a data-driven business model that feeds operating data back into design.
Equipment, operating conditions, your specification and safety requirements
Sequences, interlocks, alarms, I/O list and power layout
Panel building and wiring, PLC and drive programs
Operation, interlock, alarm and protection tests before shipment
Installation, commissioning, operation support and data management
| Field | Customer · site | Scope of supply |
|---|---|---|
| Liquid hydrogen station | SK E&S liquid hydrogen refueling station | VFD, PLC and UPS control system · commercial station in operation |
| Hydrogen-powered vessel | Ministry of Oceans and Fisheries – safe small hydrogen-powered vessel R&D and demonstration (2022.4–2026.12) | Integrated control · monitoring · system integration |
| Energy plant | SK ecoplant · KOSPO fuel cell power plant CCUS facility | BOP control system for CCUS |
Marine, LNG and industrial plant references are on the Applications page.
We supplied the VFD, PLC and UPS control system for a commercial liquid hydrogen refueling station and continue its operation pilot.
Integrated control, monitoring and system integration for the hydrogen-powered vessel project, organized into patents.
Control systems for LNG fuel gas supply (FGSS) and BOG compressors supplied to shipyards in Korea and abroad carry over to hydrogen.
Yes. We supplied the VFD, PLC and UPS control system for the SK E&S liquid hydrogen refueling station and continue its commercial operation pilot.
We are a designated hydrogen specialist company (Ministry of Trade, Industry and Energy) and hold five patents related to liquid hydrogen station control systems, covering power control logic, operational safety, energy efficiency optimization and equipment protection algorithms.
We control and monitor station equipment, combining precise control of pumps and thermal oil circulation with real-time monitoring, energy efficiency and safety management in one control system.
Yes. In the Ministry of Oceans and Fisheries project on safe small hydrogen-powered vessels (2022.4–2026.12), we handle integrated control, monitoring and system integration of fuel cells, propulsion motors and hydrogen tanks.
Yes. We are building, step by step, a structure that collects operating and power data while the panel controls the equipment, and the Intelligent Control Panel connects it to the cloud or your server.
It depends on the equipment, safety requirements and the number and specification of panels. Send us your specification or equipment list and we will quote with a proposed configuration.
Tell us about your hydrogen equipment and the control scope you need, and an engineer will review it and get back to you. Please mention if you have a specification.
