Remote Battery Control Device for UPS Voltage Measurement
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Solution Overview
Problem
In industrial UPS systems, the distance between the auxiliary electrical supply device and the battery leads to inaccuracies in battery voltage and temperature measurements, resulting in suboptimal charging and reduced reliability and service life of the battery.
Innovation Solution
An accumulator control device with a control unit and communication interface is used to measure and transmit precise battery voltage and temperature parameters from the battery to the auxiliary electrical supply device, ensuring accurate charging control and maximizing battery life and buffer time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the auxiliary electrical supply device is located remotely from the battery to save space or improve system layout, then the system layout flexibility is improved, but the measurement precision of battery voltage and temperature deteriorates
Solution Approach 1:
A communication interface acts as an intermediary between the battery control device and the auxiliary electrical supply device, transmitting measured voltage and temperature data from the local control device to the remote supply device, thereby maintaining measurement precision despite physical separation
Solution Approach 2:
The system is segmented into a battery control device with measurement functions located near the battery, and a remote auxiliary electrical supply device that receives data through communication interfaces, allowing spatial separation while maintaining functional integrity
2Productivity
If the end-of-charge voltage is set as high as possible to maximize battery capacity utilization, then the battery capacity utilization is improved, but the battery service life deteriorates
Solution Approach 1:
The end-of-charge voltage is dynamically adjusted based on real-time battery temperature measurements, allowing the system to optimize between capacity utilization and service life by adapting the voltage threshold to current thermal conditions
Solution Approach 2:
The battery control device continuously monitors temperature and provides feedback to adjust the charging parameters, enabling real-time optimization of the end-of-charge voltage to balance capacity utilization and service life extension
3Duration of action of stationary object
If the battery temperature is taken into account during charging to protect the battery, then the battery service life is improved, but the device complexity increases
Solution Approach 1:
The temperature measurement function is merged into the battery control device that is already present for voltage monitoring and charging control, eliminating the need for separate temperature monitoring hardware and reducing overall system complexity
Solution Approach 2:
The battery control device is designed with multi-functionality, serving both voltage monitoring and temperature measurement purposes, thereby protecting battery service life without adding dedicated single-function components
Data Source
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AI summary
To improve the control of the charging and/or discharging of the accumulators used in an auxiliary electrical power supply, the invention provides an accumulator control device (20) for connection to a remote auxiliary electrical power supply device (10), which comprises a control unit (210) for measuring and evaluating accumulator parameters and a communication interface (220) for connecting the control unit (210) to the remote auxiliary electrical power supply device (30), wherein the control unit (210) is configured to transmit measured parameter values to the auxiliary electrical power supply device (30). The invention further provides an auxiliary electrical power supply system and a method for controlling such a system.