Grid Power Supply Control With Storage-Neutral Energy Planning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing power grid management systems face challenges in maintaining balance between power supply and demand, leading to imbalances that require costly adjustments through large electric storage capacities, which increase operational costs.
Innovation Solution
A control method and system that generates initial planned energy values for each time slot, using both power generator output and electric storage system charge/discharge power to match actual energy supply to the grid, while adjusting planned values to minimize integrated charge/discharge energy, thereby reducing the necessary electric storage capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If large electric storage capacity is used to maintain power supply balance, then grid balance reliability is improved, but operational cost increases
Solution Approach 1:
The patent implements dynamic adjustment of planned power values based on real-time charge-discharge status. The control unit continuously monitors the integrated charge-discharge energy and adjusts subsequent planned values to maintain the cumulative balance near zero, enabling the system to adapt to varying storage conditions and minimize required capacity while maintaining reliability
Solution Approach 2:
The patent changes the parameter of planned power values dynamically. By adjusting the planned value in response to the integrated charge-discharge energy deviation, the system transforms the static storage capacity requirement into a dynamic control problem, reducing the needed storage capacity through parameter optimization
2Stability of the object's composition
If large electric storage capacity is used to inhibit power supply imbalance, then power supply stability is improved, but cost increases
Solution Approach 1:
The patent establishes a feedback loop where the control unit monitors the integrated charge-discharge energy and uses this information to adjust subsequent planned power values. This feedback mechanism ensures power supply stability by continuously correcting deviations, eliminating the need for excessive storage capacity
Solution Approach 2:
The patent performs preliminary adjustment of planned power values before execution. By predicting and compensating for potential charge-discharge imbalances in advance, the system maintains power supply stability without requiring large storage capacities to handle unexpected variations
Data Source
AI summary
A control method includes: generating an initial planned value of a supplied energy to a power grid in each of a plurality of time slots; controlling power supply to the power grid using generated power of a power generator and charge-and-discharge power of an electric storage system such that an actual value of the supplied energy to the power grid is made close to a planned value in a time slot after determination of the planned value; and changing the planned value in the time slot before determination of the planned value such that an integrated charge-and-discharge energy of the electric storage system is made close to zero, wherein the controlling includes controlling the power supply to the power grid such that the actual value of the supplied energy is made close to the changed planned value.