Area-Specific Power Consumption Calculation Using Efficiency Data
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Solution Overview
Problem
In facilities with both machine room and office spaces, it is challenging to determine the power consumption of each area since existing methods assume all power is consumed in the machine room space.
Innovation Solution
A power consumption calculation apparatus that identifies and separates the power consumption of machine room and office spaces by using a first identification unit to analyze total power consumption data, a second identification unit to determine air conditioning efficiency, and calculation units to apply these values to a relation that accounts for power supply and air conditioning equipment losses to calculate specific area power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If total power consumption is recorded at the facility level, then overall energy monitoring is achieved, but the power consumption of specific areas (machine room vs. office space) cannot be determined
Solution Approach 1:
The patent segments the facility power consumption into distinct components (machine room power consumption and office space power consumption) by identifying characteristic patterns in the total power consumption history. The first identification unit separates the power consumption waveform into multiple components based on temporal patterns, allowing precise measurement of specific area consumption without physical segmentation of measurement devices.
Solution Approach 2:
The patent introduces air conditioning efficiency as an intermediary parameter that links total power consumption to specific area consumption. By using the identified power consumption components and air conditioning efficiency data, the system calculates machine room power consumption as an intermediate step, which then enables determination of office space power consumption through the established relationship.
2Ease of operation
If existing methods assume all power is consumed in the machine room space, then calculation simplicity is maintained, but accurate determination of office space power consumption is prevented
Solution Approach 1:
The patent applies partial action by first identifying only the machine room power consumption component from the total power consumption history using characteristic patterns. This partial identification is sufficient to then calculate office space power consumption by subtraction, avoiding the need to directly measure each area while maintaining accuracy. The approach performs more than the traditional assumption (which attributes all power to machine room) but less than complete separate measurement would require.
3Measurement precision
If air conditioning efficiency varies with temperature, then accurate power consumption calculation requires temperature-based efficiency identification, but this increases data processing requirements
Solution Approach 1:
The patent performs preliminary action by pre-identifying air conditioning efficiency values based on temperature conditions before they are needed for power consumption calculation. The system stores efficiency data corresponding to different temperature conditions, and when calculation is needed, it simply retrieves the appropriate pre-determined efficiency value rather than calculating it from scratch, reducing processing time while maintaining accuracy.
Data Source
AI summary
A power consumption calculation apparatus identifies, from a history of a total power consumption Wx measured at a facility including power supply equipment, air conditioning equipment, and communication equipment; identifies, for each Wx, an air conditioning efficiency Ra; calculates a power consumption Wc′ in a second area excluding a first area in the facility by applying each Wx and Ra to a relation Wc+Wa+(Wx×Rp)=Wx where Ra is calculated by dividing Wa being a power consumption of the communication equipment by Wa being a power consumption of the air conditioning equipment and Rp is a loss factor of Wx; and calculates a power consumption of the first or second area based on Wx corresponding to a second period in the history, Wc′, Rp, and an air conditioning efficiency Ra′ corresponding to the second period.