Drive Unit Connector Sequencing for Hot-Swappable Replacement
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Solution Overview
Problem
In decentralized drive systems with multiple drive units, exchanging an individual unit necessitates shutting down the entire system, which is undesirable.
Innovation Solution
A drive system with detachable connection connectors between energy supply and control systems, allowing individual drive units to be exchanged without shutting down the entire system, using plug connections and a predetermined sequence to manage the detachment process, including pre-charging and automatic sequencing to prevent arcing and wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If drive units are connected permanently to the energy supply system and control system, then system reliability is improved, but ease of repair deteriorates because individual drive units cannot be exchanged without shutting down the entire system
Solution Approach 1:
The connection between drive units and the central systems is segmented into detachable connection connectors. Each drive unit has its own connection connector that can be separated from the energy supply system and control system independently, allowing individual drive units to be exchanged without affecting other parts of the system.
Solution Approach 2:
The connection state is made dynamic rather than static. The connection connectors can transition between connected and disconnected states, enabling the system to adapt between operational mode (connected for reliability) and maintenance mode (disconnected for easy exchange).
2Ease of repair
If detachable connection connectors are used for exchanging drive units, then ease of repair is improved, but device complexity increases due to additional connection components and detachment sequencing requirements
Solution Approach 1:
The energy supply connection and control system connection are merged into a single integrated connection connector assembly. This reduces the number of separate components and simplifies the detachment process by handling both connections together through one unified interface.
Solution Approach 2:
The connection connector incorporates automatic sequencing functionality that manages the detachment process without external intervention. The control system automatically coordinates the disconnection of energy supply and control signals in the proper sequence, eliminating the need for complex manual procedures.
3Reliability
If the entire drive system is shut down for exchanging drive units, then safety is improved by preventing accidental operation, but productivity deteriorates due to complete system stoppage
Solution Approach 1:
The drive unit to be exchanged is extracted from the system through detachable connections, isolating it from the energy supply and control systems. This allows the remaining drive units to continue operating while the extracted unit is replaced, maintaining productivity during maintenance.
Solution Approach 2:
The system maintains continuous operation of remaining drive units while one unit is being exchanged. The detachable connections enable the useful action of the overall drive system to continue uninterrupted, with only the specific maintenance operation temporarily affecting the extracted unit.
4Productivity
If rapid detachment of connection connectors is performed, then productivity is improved by reducing exchange time, but object-generated harmful factors increase due to arcing and wear from fast disconnection
Solution Approach 1:
The control system performs preliminary actions by automatically initiating a controlled detachment sequence before the physical disconnection is complete. This includes preparing the electrical contacts and coordinating the disconnection of energy supply and control signals to minimize arcing and wear while maintaining rapid exchange capability.
Data Source
AI summary
A drive system having a plurality of drive units that each have a converter and preferably one motor, wherein the drive system includes an energy supply system that supplies electric energy to the drive units, and a control system that includes a control computer and at least one control line, where the control system transmits control instructions to the drive units, and where the energy supply system and the drive units are releasably connected together via a first respective connection connector, preferably via a plug connection, and the control system and the drive units are releasably connected together via a second respective connection connector, preferably via a plug connection.