Phase-Pulse Battery Maintenance via Synchronized Thyristor Control
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Solution Overview
Problem
Existing battery charging systems face inefficiencies in recovering different battery states during initial operation, particularly due to limitations in pulse repetition periods and the inability to simultaneously operate thyristor rectifiers and inverters without causing short circuits.
Innovation Solution
A battery maintenance process involving a phase-pulse control system that synchronizes rectifier and inverter thyristors with sinusoidal inter-phase voltage signals, allowing for the formation of synchronized pulses and pauses to manage charging and discharging currents, thereby reducing internal resistance and stabilizing battery characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If cyclic charging pulses with current and voltage components are applied to the battery, then the battery can be charged and maintained, but the recovery efficiency for different battery states remains low
Solution Approach 1:
The patent applies periodic action by implementing cyclic charging and discharging pulses with specific time intervals. The controller alternates between charging mode (applying current pulses) and discharging mode (applying reverse current pulses), creating a periodic action that effectively restores battery characteristics and improves recovery efficiency for different battery states.
Solution Approach 2:
The patent employs inversion by applying reverse current pulses during discharging mode that oppose the charging current direction. This reverse action helps to dissolve crystal deposits on battery electrodes and restore battery characteristics, thereby improving recovery efficiency without compromising charging efficiency.
2Ease of operation
If thyristor rectifiers and inverters are operated simultaneously to control charging pulses, then precise current control is achieved, but short circuits occur due to pulse repetition period limitations
Solution Approach 1:
The patent resolves the short circuit issue by implementing periodic action with carefully controlled time intervals. The controller alternates between rectifier operation (charging mode) and inverter operation (discharging mode) with sufficient pause time between cycles, allowing thyristors to return to non-conducting state and preventing short circuits while maintaining precise current control.
Solution Approach 2:
The patent applies preliminary action by introducing pause intervals between charging and discharging pulses. During these pauses, the controller ensures all thyristors are in non-conducting state before initiating the next cycle, preventing overlapping current flows that could cause short circuits while maintaining precise control capability.
3Loss of time
If pulse intervals are reduced to accelerate molecular movements in battery cells, then charging time is reduced, but the system complexity increases
Solution Approach 1:
The patent implements periodic action with optimized pulse frequencies that accelerate molecular movements in battery cells without excessive complexity. The controller uses programmed pulse sequences with specific durations and intervals to enhance charging speed while managing system complexity through standardized control logic.
Solution Approach 2:
The patent applies parameter changes by adjusting pulse duration, frequency, and amplitude based on battery state and charging stage. The controller dynamically modifies these parameters to optimize charging speed at different stages, reducing overall charging time while avoiding unnecessary system complexity through adaptive control rather than fixed complex circuitry.
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 approach enables efficient alignment of battery cell characteristics, decreases internal resistance, and stabilizes it within 0.5 to 1 hour, while allowing for remote monitoring and control, thus improving battery maintenance efficiency and reliability.
Implementation Method 1
A battery maintenance process involving a phase-pulse control system that synchronizes rectifier and inverter thyristors with sinusoidal inter-phase voltage signals, allowing for the formation of synchronized pulses and pauses to manage charging and discharging currents
Implementation Method 2
synchronizes rectifier and inverter thyristors with sinusoidal inter-phase voltage signals, allowing for the formation of synchronized pulses and pauses
Implementation Method 3
the molecular movements in the cells of the rechargeable battery can be accelerated. Through this process, the time necessary for the chemical transformations and the time necessary for the full charge itself can be reduced
Implementation Method 4
the reverse current equals the average values of the charging and discharging current. In this case, the conditions are created for the opening of pores in the salt deposits on the electrodes of the battery
Data Source
AI summary
A method and device is disclosed for charging and/or maintenance of lead-acid and alkaline accumulator batteries, allowing a charge, discharge, or recovery in control-conditioning cycles of these batteries. To increase efficiency of the battery recovery process, its charge is created by a reversible current in consecutive stages. Correction of the charging mode is provided based on voltage and temperature of the accumulator battery.