Hydrogen Plant Operation Planning for Balancing Power Uncertainty
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Solution Overview
Problem
Hydrogen production plants face challenges in planning operation plans that consider constraints on hydrogen production and storage capacity, as well as uncertain factors like balancing power command values, which are not effectively addressed by existing methods.
Innovation Solution
An operation plan planning device connected to the electric power system, incorporating a balancing power scenario creator, mathematical optimization calculator, and calculation condition setter, to optimize balancing power management in hydrogen production plants with renewable energy generators, water electrolysis devices, and hydrogen storage facilities, while accounting for constraints and uncertainties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If mathematical optimization technique is used to plan operation plan, then hydrogen production cost is reduced, but uncertain factors like command values cannot be determined at planning time
Solution Approach 1:
The patent applies preliminary action by pre-calculating multiple operation plans corresponding to different command value scenarios before the actual balancing power request is received. The system creates a database of pre-computed operation plans that can be quickly selected and adjusted when the actual command value is received, rather than solving the optimization problem from scratch at planning time.
Solution Approach 2:
The patent implements dynamics by making the operation plan adaptable to different command value scenarios. The system uses scenario analysis to create multiple operation plans under different assumptions about balancing power requests, and dynamically selects or adjusts the appropriate plan based on the actual received command value, making the system flexible rather than static.
2Adaptability or versatility
If multiple scenarios of command values are assumed, then optimization calculation can be performed, but constraint equations must be set for each scenario increasing complexity
Solution Approach 1:
The patent applies segmentation by dividing the problem into separate scenario-specific calculations. Each scenario is treated as an independent optimization problem with its own constraint equations, allowing the system to handle multiple command value possibilities without creating an intractably complex unified model. The scenarios are segmented and solved separately, then compared to select the best plan.
3Productivity
If hydrogen production constraints and storage capacity constraints are considered, then operation plan can be optimized, but existing methods do not account for balancing power requests
Solution Approach 1:
The patent applies universality by creating an operation plan system that simultaneously handles multiple objectives: hydrogen production optimization, storage capacity management, and balancing power request fulfillment. The system integrates these different functions into a unified planning framework that considers all constraints and objectives together, making the plan adaptable to various operational requirements including balancing power requests.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables hydrogen production plants to effectively respond to balancing power requests, minimize costs, and optimize hydrogen production by creating scenarios and performing optimization calculations based on historical data and probability distributions, thereby reducing hydrogen production costs.
Implementation Method 1
a water electrolysis device, and a hydrogen storage facility
Data Source
AI summary
According to an embodiment, an operation plan planning device connected to an electric power system and plans an operation plan for responding to a request for a balancing power from the electric power system in a hydrogen production plant that includes a renewable energy generator, a water electrolysis device, and a hydrogen storage facility, the device comprises: an input part; a storage; a calculator including: a balancing power scenario creating unit to create a time series of a balancing power price and a time series of a balancing power ratio, and to create a balancing power scenario by synthesizing them; a mathematical optimization calculator; and a calculation condition setting unit; and an output part.