Voltage-Dependent Operational Release for HVAC Network Stabilization
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Solution Overview
Problem
Existing heating and cooling devices struggle to optimize their operation in response to fluctuating electrical energy availability from alternative energy sources, leading to potential destabilization of the supply network and inefficient energy use.
Innovation Solution
Incorporating a temperature sensor connected to a regulation and control device that measures voltage and/or frequency to determine optimal operating times and setpoint temperatures, allowing devices to self-regulate their operation without external information, thereby stabilizing the supply network and utilizing energy based on availability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If heating or cooling devices operate continuously to meet temperature demands, then temperature stability is improved, but energy waste increases during periods of excess supply network energy
Solution Approach 1:
The device operates periodically based on voltage thresholds rather than continuously. It switches between operating and non-operating states according to the supply network's energy availability, creating a periodic operation pattern that reduces energy waste during excess supply periods while maintaining temperature stability through strategic operation cycles
2Use of energy by moving object
If devices respond to voltage changes from alternative energy generators, then energy efficiency is improved, but network destabilization risk increases due to fluctuating consumption
Solution Approach 1:
The device changes its operational parameters (on/off state) based on voltage threshold parameters. By operating only when voltage exceeds the upper threshold and remaining off when voltage falls below the lower threshold, the device adapts to network conditions while maintaining stable, predictable consumption patterns that prevent network destabilization
Solution Approach 2:
The device continuously monitors supply network voltage and uses this feedback to adjust its operational state. This closed-loop control ensures the device responds appropriately to network conditions, improving energy efficiency during excess supply while maintaining network stability through controlled response to voltage fluctuations
3Productivity
If devices operate during periods of excess energy supply, then energy utilization is improved, but temperature control precision deteriorates due to aggressive heating or cooling
Solution Approach 1:
The device applies partial action by operating at reduced intensity or for limited durations during voltage threshold periods. Instead of aggressive heating/cooling, it applies just enough energy to advance toward the setpoint temperature, preventing overshoot and maintaining precision while still utilizing excess energy supply
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables heating and cooling devices to operate intelligently, stabilizing the supply network by adjusting setpoint temperatures according to voltage and frequency fluctuations, ensuring efficient energy use and reducing the risk of network destabilization.
Implementation Method 1
a voltage or frequency measuring device measures the voltage or frequency prevailing at the input terminals
Implementation Method 2
a temperature sensor is connected to the regulation and control device, which measures the temperature present at a specified point in the volume
Implementation Method 3
a device for generating heat or cold from electrical energy with a rated electrical output of at least 100 watts
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The device (1a) has power supply network through which energy is supplied to input terminals of the device. A voltage measuring unit (29) measures voltage produced at the input terminals. A control unit (1b) causes the release of operation of the device in dependence of measured voltage.