Dynamic Power Limit Control for Multi-Unit Load Groups
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Solution Overview
Problem
Existing power control systems face inefficiencies in managing power usage across multiple units, leading to increased unused power when individual units' consumption is controlled with a safety margin, resulting in target power not being exceeded but leaving unused power unaccounted for.
Innovation Solution
A power control system that adjusts limit values for each unit of power consumption based on actual usage over predetermined time periods, allowing for interchanging of power usage among units to minimize overall unused power, while ensuring total power usage does not exceed the target.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power usage is controlled with a margin for safety in the control of each individual unit of power consumption such that target power set per group is not exceeded, then reliability is improved, but unused power increases
Solution Approach 1:
The patent implements dynamic adjustment of power consumption limits for individual units within a group. Instead of fixed conservative limits, the system continuously monitors actual power usage and adjusts limits in real-time based on current conditions, allowing the system to maintain reliability while minimizing unused power capacity
Solution Approach 2:
The system employs feedback mechanisms where actual power usage data from individual units is collected and used to adjust power consumption limits. This closed-loop control allows the system to learn from actual usage patterns and optimize power allocation, reducing the safety margin waste while ensuring target power compliance
2Reliability
If fixed limit values are set for each unit of power consumption to ensure target power is not exceeded, then reliability is improved, but adaptability deteriorates
Solution Approach 1:
The system transitions from static fixed limits to dynamic adjustable limits that adapt to changing conditions. Power consumption limits are continuously updated based on actual usage patterns, time of day, and group power availability, enabling both reliability maintenance and adaptability improvement
Solution Approach 2:
The patent changes the parameter of power consumption limits from fixed values to variable values that adjust based on actual usage. By modifying this key parameter dynamically, the system achieves both reliable target power compliance and flexible adaptation to different operational conditions
Data Source
AI summary
A power control system performs power control such that a target power set for a group including a plurality of units of power consumption is not exceeded. The system includes a limit value setting unit that sets, for each of the units of power consumption, a limit value of power usage for a predetermined time period based on the target power, and an adjustment unit that adjusts, within the predetermined time period, the limit value of each of the units of power consumption based on an actual result of power usage within the predetermined time period.