Coordinated control method, device, electronic equipment and medium for off-grid renewable energy hydrogen production

By adopting steady-state, transient and emergency control modes in off-grid new energy hydrogen production system, combined with the principles of adjustment of dead zones and overcutting, the problems of low stability and consumption rate of off-grid new energy hydrogen production system are solved, and the safe, stable and efficient operation of the system is achieved.

CN119602359BActive Publication Date: 2025-09-05NR ELECTRIC CO LTD +1
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Patent Information

Application Number
CN202411271075.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-09-11
Publication Date
2025-09-05
Estimated Expiration
2044-09-11

AI Technical Summary

Technical Problem

In the absence of energy and inertial support for the off-grid new energy hydrogen production system, there are problems of safety, stability and low absorption rate. The existing technology mainly relies on energy storage margin adjustment, resulting in low absorption rate of new energy.

Method used

Three coordinated control modes are adopted: steady-state control, transient control and emergency control. Combined with the preset regulation dead zone and overcut principles, the power of new energy and hydrogen production loads is dynamically adjusted to ensure system frequency stability, and to remove non-critical loads in emergencies.

Benefits of technology

It improves the stability and absorption rate of off-grid new energy hydrogen production system, reduces unnecessary adjustment actions, extends equipment life, ensures the safe and stable operation of the power grid and hydrogen production system, and improves the utilization efficiency of new energy.

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Abstract

The present application provides a coordinated control method, device, electronic equipment and medium for off-grid new energy hydrogen production, which relates to the technical field of new energy hydrogen production. The coordinated control method for off-grid new energy hydrogen production includes: when the measured current frequency of the system is within the regulation dead zone, the first coordinated control of the off-grid new energy hydrogen production is performed based on the steady-state control mode; when the current frequency of the system is not within the regulation dead zone, the second coordinated control is performed based on the transient control mode; after the second coordinated control, when the current frequency of the system is not within the regulation dead zone, the third coordinated control of the off-grid new energy hydrogen production is performed based on the emergency control mode; after the third coordinated control, when the current frequency of the system is not within the regulation dead zone, the power value to be cut off of the off-grid new energy hydrogen production is determined according to the over-cut principle. The present application takes into account the load regulation characteristics of the hydrogen production electrolyzer itself, realizes source-load interaction, and improves the absorption rate of new energy.
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