Hydrogen Production Control for Demand Response Delay Reduction
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Solution Overview
Problem
The control response of hydrogen production devices is slower than renewable energy systems, leading to delays in adjusting power usage, which can result in penalties for excess or deficient energy reception from the power grid during demand response periods.
Innovation Solution
A hydrogen-system control device that acquires predicted renewable energy values and adjusts hydrogen production based on a usage ratio, dynamically changing this ratio over time to optimize power usage and reduce delays in responding to surplus or deficit energy conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If hydrogen production is increased to utilize surplus renewable energy, then renewable energy usage is improved, but control response delay worsens
Solution Approach 1:
The control device calculates a usage ratio of surplus renewable energy in advance and determines the target hydrogen production amount before the demand response period begins. This preliminary calculation allows the hydrogen production device to be pre-positioned for optimal response, reducing the actual response delay when the demand response period starts.
Solution Approach 2:
The system dynamically adjusts the usage ratio of surplus renewable energy based on the time remaining in the demand response period. The control device continuously updates the target hydrogen production amount according to current renewable energy generation and time elapsed, enabling adaptive response that optimizes both hydrogen production and response speed.
2Reliability
If hydrogen production is adjusted to match power supply-demand balance, then power grid balance is improved, but response speed worsens
Solution Approach 1:
The control device calculates the usage ratio and target hydrogen production amount in advance, before the demand response period begins. This preliminary action allows the system to be pre-configured for the upcoming balance adjustment, enabling faster actual response while maintaining accurate power supply-demand balance.
Solution Approach 2:
The control device continuously monitors the actual renewable energy generation against predicted values and adjusts the usage ratio and target hydrogen production amount in real-time. This feedback mechanism ensures that the hydrogen production accurately reflects the actual power supply conditions while maintaining fast response capability.
Data Source
AI summary
A hydrogen-system control device according to the present embodiment is a hydrogen-system control device that controls a hydrogen system. The hydrogen-system control device includes an acquirer configured to acquire a predicted value of the first power for a time period for which an amount of the second power to be received has been set, and a controller configured to cause the hydrogen system to additionally produce hydrogen in an amount corresponding to a usage ratio of surplus power by which a supplied value of the first power exceeds the predicted value of the first power, wherein the controller sets the usage ratio for a first time period within a predetermined time period to a value larger than the usage ratio for a second time period that is after the first time period and within the predetermined time period.