Self-Configuring Matrix Converter for Multi-Voltage Climate Control
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Solution Overview
Problem
Transport climate control systems face inefficiencies due to the need for separate components and converters to handle different DC input voltages, leading to increased costs and complexity in maintenance and service.
Innovation Solution
A self-configuring matrix power converter is used, which can adapt to work with different voltages (e.g., 24 VDC or 48 VDC) by minimizing unused circuitry and magnetic components, allowing for seamless transitions between voltage levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate power converters are designed for different DC input voltages (24VDC and 48VDC), then each converter can be optimized for its specific voltage, but the system requires multiple different converters and service parts, increasing device complexity and reducing ease of repair
Solution Approach 1:
The patent implements a universal power converter that can operate with multiple DC input voltages (24VDC, 48VDC, and other voltages) through a single device. The converter uses a matrix switch network that can be configured to handle different voltage inputs, eliminating the need for separate converters for each voltage level. This multi-functional design allows one converter to replace what would traditionally require multiple specialized converters.
Solution Approach 2:
The patent employs dynamic reconfiguration of the power converter's internal circuitry through a matrix switch network. The converter can dynamically change its operating mode and internal connectivity based on the detected input voltage level. This dynamic adaptation allows the same hardware to optimize its performance for different voltage inputs without requiring physical reconfiguration or multiple fixed-design converters.
2Reliability
If separate power converters are designed for different DC input voltages, then each converter can be optimized for its specific voltage, but users must stock different parts and need different service parts, increasing loss of substance and reducing ease of repair
Solution Approach 1:
The universal power converter design means that a single converter model can service multiple voltage systems (24VDC, 48VDC, etc.). This eliminates the need for service centers and users to maintain inventories of different converter models for different voltage systems. One universal converter replaces multiple specialized converters, significantly reducing parts inventory requirements and simplifying repair operations.
Solution Approach 2:
The patent enables the recovery and reuse of the same converter hardware across different voltage systems. Instead of discarding a converter when upgrading from 24V to 48V systems, the same physical converter can be reconfigured and reused. This extends the service life of converter components and reduces waste of electronic equipment.
3Reliability
If separate converters are used for 24VDC and 48VDC systems, then each system can be serviced independently, but misconfigurations can occur and service operations become more complex, reducing ease of operation
Solution Approach 1:
The power converter incorporates automatic voltage detection and self-configuration capabilities. When powered up, the converter automatically detects the input voltage level (24VDC, 48VDC, or other voltages) and configures its internal matrix switch network accordingly without requiring manual intervention or configuration by service personnel. This self-service feature eliminates misconfiguration errors and simplifies service operations.
Solution Approach 2:
The converter employs feedback mechanisms where the control module continuously monitors the input voltage level and adjusts the matrix switch configuration in real-time. This closed-loop feedback ensures the converter operates at optimal settings for the detected voltage, preventing misconfigurations and maintaining system stability. The feedback system automatically corrects any configuration issues without requiring external intervention.
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 reduces costs by reusing existing components, simplifies maintenance with a single reconfigurable power converter, improves reliability, and enhances customer satisfaction by reducing confusion and risk of improper application.
Implementation Method 1
the inverter circuit is configured to convert a first AC voltage from an energy source to a first DC voltage
Implementation Method 2
the controller is configured to control the self-configuring matrix power converter to convert the first DC voltage to a first output DC voltage to charge the first DC energy storage
Implementation Method 3
a transformer circuit connecting to the first converter circuit
Implementation Method 4
The inverter circuit is configured to convert the second DC voltage to an AC voltage to drive the compressor
Data Source
AI summary
A transport climate control system is disclosed. The transport climate control system includes a self-configuring matrix power converter having a charging mode, an inverter circuit, a controller, a first DC energy storage and a second DC energy storage, and a compressor. The first DC energy storage and the second DC energy storage have different voltage levels. During the charging mode, the inverter circuit is configured to convert a first AC voltage from an energy source to a first DC voltage, the controller is configured to control the self-configuring matrix power converter to convert the first DC voltage to a first output DC voltage to charge the first DC energy storage, and/or to a second output DC voltage to charge the second DC energy storage.