Mobile Compressor Power Conversion for Grid Compatibility
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Solution Overview
Problem
Existing mobile compressor systems face challenges due to the need for multiple drive motor variants and gear ratios to accommodate different input voltages and frequencies, leading to increased production complexity and spare parts variability, especially when operating in different countries and regions.
Innovation Solution
A mobile compressor system with a control unit and wide-range electronic power supply that converts input voltages and frequencies, allowing a single drive motor and gearbox configuration to operate across various power grids and DC sources, along with communication interfaces for optimized operation and sensor feedback for safety and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple drive motor variants and gear ratios are used to accommodate different input voltages and frequencies, then the compressor system can operate in different countries and regions, but the production complexity and spare parts variability increase
Solution Approach 1:
The patent applies universality by designing a single drive motor model that can operate with different input voltages (e.g., 230V, 400V) and frequencies (50Hz, 60Hz) through electronic power supply conversion. The power electronics convert various input configurations to a standardized motor operating voltage, making one motor design universally compatible across different regional power grids, thereby reducing the need for multiple motor variants while maintaining global operational capability
Solution Approach 2:
The patent employs parameter changes by using wide-range electronic power supplies that can adapt to different input voltage and frequency parameters. The power electronics dynamically adjust conversion parameters based on the detected input configuration, enabling a single motor to operate across different electrical environments without physical modifications, thus resolving the contradiction between adaptability and complexity
2Reliability
If each motor variant requires its own gear ratio and power transmission configuration, then the motor can be optimized for specific voltage and frequency conditions, but the production efficiency and cost-effectiveness decrease
Solution Approach 1:
The patent applies universality by standardizing the power transmission configuration (gearbox, belt coupling) to work with a single drive motor model across all applications. The electronic power supply handles the adaptation to different input conditions, allowing the mechanical transmission components to remain unchanged, thereby simplifying production while maintaining optimized motor performance through electronic control
Solution Approach 2:
The patent replaces mechanical adaptation mechanisms (multiple gear ratios, different belt couplings) with an electronic power conversion system. The power electronics substitute for the need for multiple mechanical configurations by electronically converting different input voltages and frequencies to the appropriate motor operating parameters, thus eliminating the need for variant-specific mechanical components and improving production efficiency
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
Enables a single drive motor and gearbox design to operate efficiently and safely across diverse power sources and conditions, reducing variant complexity and ensuring optimal performance and safety through adaptive control and power conversion.
Implementation Method 1
a wide-range electronic power supply with power electronics which are configured to convert different input voltages into the drive motor operating voltage
Implementation Method 2
a drive motor accommodated in the compressor housing with a drive motor operating voltage, which is designed to set a motor shaft in rotation
Implementation Method 3
at least one compressor stage with a compressor cylinder and a compressor piston movably accommodated therein, wherein the compressor piston can be driven directly or indirectly by the motor shaft to a linear movement within the compressor cylinder
Data Source
Figure 1
AI summary
The present invention relates to a mobile compressor system (10), comprising a compressor housing (12), at least one drive motor (16) accommodated in the compressor housing (12) with a drive motor operating voltage, which is designed to set a motor shaft (18) in rotation, at least one compressor stage (24) with a compressor cylinder (26) and a compressor piston (22) movably accommodated therein, wherein the compressor piston (22) can be driven directly or indirectly by the motor shaft (18) to a linear movement within the compressor cylinder (26), a control unit (14) which is designed to control an operation of the compressor system (10) and in particular a speed of the drive motor (16), and a wide-range electronic power supply with power electronics (28), which are designed toConvert different input voltages into the drive motor operating voltage and supply it to the drive motor (16). For comprehensive monitoring and control of the system (10), the control unit (14) and the wide-range electronic power supply are connected to a sensor/actuator unit (30) via power electronics (28). Wired and/or wireless user interfaces (12a) serve the user, customer service, the manufacturer, or the higher-level control system for direct or indirect communication and control of the system, thus optimizing operation with regard to supply and consumer requirements.