New PID control framework stabilizes integrated electrolyzer-compressor systems
Two PID controllers coordinate electrolyzer and compressor dynamics under transient disturbances
As power and hydrogen sectors become increasingly interconnected, the coordinated operation of electrolyzers and electric-driven compressor stations (EDCS) is critical—especially during transient disturbances. However, the dynamic interactions between these coupled subsystems have remained largely unexplored. This paper, submitted August 12, 2026, closes that gap by proposing a dynamic model for an integrated electrolyzer-EDCS system, then applying linearized models to enable systematic PID controller design.
The paper introduces two distinct PID control approaches: a conservative design and a fast-tracking design, each tailored for different response priorities. Through four verification cases, the researchers demonstrate that controlling electrolyzer flow in response to EDCS disturbances effectively coordinates system dynamics and dampens undesirable fluctuations. Conversely, when disturbances originate from the electrolyzer, regulating EDCS torque eliminates inconsistent responses in pressure, flow, and rotational speed, while preventing hazardous undershoots and overshoots. The framework guarantees transient stability and operational reliability for the integrated system, providing a practical blueprint for grid-edge hydrogen infrastructure.
- Dynamic model for integrated electrolyzer and electric-driven compressor station (EDCS) systems enables coordinated control
- Two PID controllers (conservative and fast-tracking) tested across 4 disturbance scenarios
- Regulating electrolyzer flow or EDCS torque prevents hazardous pressure/flow overshoots under disturbances
Why It Matters
Enables stable power-to-hydrogen operations, crucial for grid resilience and renewable hydrogen infrastructure.