Air-Conditioner Peak Power Cut With Dynamic Drive Control
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Solution Overview
Problem
Conventional peak electric power cut systems for household appliances, such as air-conditioners, struggle to accurately reduce power consumption during peak demand periods and cannot promptly respond to requests for power consumption cuts, as they rely on shifting set temperatures without clear consumption reduction metrics.
Innovation Solution
A household electric system comprising a mobile terminal, radio adaptor, gateway device, and air-conditioner units that receive power consumption cut requests, allowing for direct detection and reduction of peak power consumption through controlled operation of compressor and fan drive circuits based on set thresholds, enabling immediate response to peak demand.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the set temperature is shifted up to reduce power consumption, then power consumption is reduced, but the response speed to peak demand requests deteriorates
Solution Approach 1:
The patent implements dynamic control of the air-conditioner by switching between normal operation mode and peak cut operation mode based on received requests. The control unit dynamically adjusts the drive unit's operation according to the operation mode, enabling the system to adapt its behavior in real-time rather than using a fixed temperature shift approach, thus achieving both energy reduction and quick response.
2Loss of energy
If the set temperature is shifted up to reduce power consumption, then power consumption is reduced, but the precision of consumption reduction deteriorates
Solution Approach 1:
The patent changes the operational parameters of the drive unit based on the operation mode. In peak cut operation mode, the control unit adjusts parameters such as compressor runtime, fan speed, or temperature setpoints to achieve a specific power consumption reduction rate. This parameter-based control enables precise consumption reduction rather than relying on simple temperature shifting.
3Reliability
If the air-conditioner operates within a narrow temperature range, then comfort is maintained, but power consumption reduction capability deteriorates
Solution Approach 1:
The system dynamically switches between normal operation mode (maintaining comfortable temperature range) and peak cut operation mode (allowing wider temperature variations to reduce consumption). This dynamic mode switching enables the air-conditioner to balance comfort and energy reduction needs based on external requests, rather than operating within a fixed narrow temperature range at all times.
Data Source
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AI summary
A household electric appliance and a household electric system are provided which are capable of quickly responding to the electric power demand in which the peak cut of the power consumption is requested. The household electric appliance comprises: a receiving unit that receives a request for a peak cut of power consumption at a predetermined rate from a remote controller and a mobile terminal; a drive unit that drives a power-consuming object to be driven; and a control unit that controls an action of the drive unit. The control unit, in the case of reception of the peak cut request from the remote controller or the mobile terminal, controls the action of the drive unit so as to cut a maximum value of the power consumption within the appliance based on the requested rate.