Peak Load Covering Device with DC Accumulator and Inverter
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Solution Overview
Problem
Electric companies face challenges in managing consumption peaks, as existing solutions require manual intervention or interrupt the power supply, and there is a need for an automated system that can seamlessly bridge peak loads without disrupting electricity to consumers.
Innovation Solution
A device comprising a power inverter fed by a direct current accumulator, a measuring device, and a control unit that monitors energy consumption and activates the power inverter to support the supply when thresholds are exceeded, allowing for adjustable energy regulation and charging of the accumulator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a peak load watchdog is used to monitor consumption, then consumption peaks can be detected, but manual intervention is required to reduce consumption
Solution Approach 1:
The system automatically reduces consumption by controlling consumer devices based on monitored peak loads, eliminating the need for manual operator intervention. The control system self-regulates by shutting off non-time-critical consumers when peaks are detected
Solution Approach 2:
The system continuously monitors consumption levels and uses this feedback to automatically control the operation of consumer devices. When peak loads are detected, the system responds by reducing consumption from non-critical devices, creating a closed-loop control system
2Productivity
If non-time-critical consumers are shut off automatically, then consumption peaks are reduced, but power supply interruption occurs
Solution Approach 1:
The system selectively applies load reduction only to non-time-critical consumers while maintaining power supply to time-critical consumers. This localized approach ensures that peak loads are reduced without interrupting power to essential devices
Solution Approach 2:
The system dynamically adjusts the operation of consumer devices based on real-time consumption levels. Non-time-critical consumers are selectively controlled to reduce load during peaks, while time-critical consumers maintain continuous operation, creating a dynamic response to varying load conditions
3Reliability
If advance knowledge of load peak times is required, then battery can be brought into circuit, but additional signal line is needed
Solution Approach 1:
The system uses real-time feedback from consumption monitoring to automatically detect and respond to peak loads without requiring advance scheduling or additional signal lines. The battery is activated based on actual consumption patterns rather than pre-programmed schedules
Solution Approach 2:
The system autonomously identifies peak load conditions and activates the battery compensation mechanism without external signaling. The consumption monitoring device and control system work together to self-determine when peak loads occur and initiate appropriate compensation actions
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 effectively compensates for consumption peaks, reducing the risk of exceeding maximum values and lowering electricity rates by automatically managing energy distribution without interrupting the power supply, thus optimizing system connections and reducing energy consumption.
Implementation Method 1
a power inverter (WR), which is fed by a direct current accumulator (BAT)
Implementation Method 2
a power inverter (WR), which is fed by a direct current accumulator (BAT) and can be connected in parallel, at the output thereof, to the electricity supply of the consumer
Data Source
AI summary
A device for covering the peak load of an electrical consumer (VB) that is connected to an alternating current terminal of a public electricity network (ENT). A power inverter (WR) is fed from a direct current accumulator (BAT) and is connected in parallel at the output thereof to the electricity supply (EB) of the consumer (VB). A measuring device (Z1, Z2) is connected in the connection circuit (EN) of the consumer and a control device (STE). With the aid of the measuring device (Z1, Z2), the control device monitors the energy consumption of the consumer (VB), estimates from it a consumption quantity of electrical energy (E*(T)) up to the end (T) of a given time interval, for example via linear extrapolation, and in the event that the prognosis value obtained in this way exceeds a given threshold value (Emax), puts the power inverter (WR) in operation in order to support the supply of the consumer.