Power Management Server Facility Segmentation
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Solution Overview
Problem
Existing power management systems struggle to maintain demand power/supply balance in power grids when the demand power exceeds the maximum discharge capacity of storage battery apparatuses, particularly when load following processing is applied collectively to all facilities.
Innovation Solution
A power management server and method that select facilities for first and second processing based on predetermined standards, using first and second target values for controlling distributed power supplies, ensuring the secured power amount exceeds a margin threshold by configuring margins based on estimated demand power, thereby optimizing power reduction from baseline levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If load following processing is applied collectively to all facilities using storage battery apparatuses, then power management is simplified, but the system cannot maintain demand power/supply balance when demand power exceeds maximum discharge capacity
Solution Approach 1:
The patent divides facilities into multiple groups (first group with first target value, second group with second target value, third group with third target value) based on their power management characteristics. This segmentation allows the system to apply different control strategies to different facilities, enabling reliable demand power/supply balance maintenance while keeping overall management organized and manageable.
Solution Approach 2:
The system dynamically adjusts target values for purchased power based on real-time conditions. The power management server determines different target values (first target value < second target value < third target value) for different groups of facilities, allowing flexible adaptation to varying demand conditions while maintaining system reliability.
2Reliability
If the number of facilities is increased to ensure sufficient secured power amount, then power supply reliability improves, but system complexity and management difficulty increase
Solution Approach 1:
The patent changes the parameter of target values for purchased power to manage facility groups effectively. By setting different target values (first, second, third target values) for different facility groups, the system can include numerous facilities in power management while maintaining manageable complexity through parameter-based categorization.
Solution Approach 2:
Different facilities or facility groups are assigned different local qualities in terms of target values and control parameters. The first group receives first target value, second group receives second target value, and third group receives third target value, allowing tailored management that reduces overall system complexity while ensuring sufficient secured power amount.
3Reliability
If margin threshold value is set high to ensure sufficient secured power amount, then power supply reliability improves, but the flexibility in facility selection decreases
Solution Approach 1:
The system dynamically determines margin threshold values based on actual power management conditions and facility characteristics. By making the margin threshold adaptive rather than fixed, the system maintains high reliability requirements while preserving flexibility in selecting which facilities to include in different groups.
Solution Approach 2:
The patent segments facilities into different groups with different margin requirements. This segmentation allows the system to maintain high overall reliability through appropriate margin threshold values while providing flexibility in facility selection by assigning different margin requirements to different facility groups based on their characteristics and contributions to secured power amount.
Data Source
AI summary
A power management server comprises a controller configured to select based on a predetermined standard, from among a plurality of facilities including a distributed power supply, a first facility in which first processing is applied to the distributed power supply and a second facility in which second processing is applied to the distributed power supply. The first processing is processing of controlling an output power of the distributed power supply by using a first target value as a target value for purchased power purchased by the facility from a power provider. The second processing is processing of controlling the output power of the distributed power supply by using a second target value as the target value for the purchased power, the second target value being greater than the first target value.