Intelligent Motor Self-Diagnosis via Power Management Current Analysis
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Solution Overview
Problem
Current motor monitoring systems are complex and costly, requiring separate sensors and processors for diagnostics and prognostics, which increases the complexity and expense of motor health assessment.
Innovation Solution
Embedding a processor in the motor with a communications interface to receive and analyze motor current information from a power management device, allowing for self-diagnosis and remote monitoring, thereby reducing the need for embedded sensors and external systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate sensors and processors are used for motor monitoring and diagnostics, then measurement precision and diagnostic capability are improved, but device complexity and cost increase
Solution Approach 1:
The patent combines the current measurement function into the power management device that already exists for motor control, eliminating the need for separate current sensors. The processor in the power management device performs both control and diagnostic functions, merging multiple functions into a single integrated system.
Solution Approach 2:
The power management device is designed to perform multiple functions: motor control, current measurement, and diagnostic analysis. This multi-functional approach allows the same hardware to serve multiple purposes, reducing overall system complexity while maintaining diagnostic capabilities.
2Adaptability or versatility
If separate sensors and processors are used for motor monitoring, then diagnostic capability is improved, but manufacturing cost increases
Solution Approach 1:
The patent merges the diagnostic processor with the existing power management device, eliminating the need for separate diagnostic hardware. This integration reduces component count and assembly complexity, thereby lowering manufacturing costs while maintaining comprehensive diagnostic capability.
Solution Approach 2:
The power management device is designed as a universal platform that handles both motor control and diagnostic functions, allowing a single device to replace multiple specialized components, thus reducing overall system cost.
3Measurement precision
If multiple separate systems are used for motor monitoring, then measurement precision is improved, but ease of operation decreases
Solution Approach 1:
The patent combines all monitoring, measurement, and diagnostic functions into a single integrated power management device, eliminating the need to coordinate multiple separate systems. This integration simplifies operation while maintaining high measurement precision through the use of existing high-precision control measurements.
Data Source
AI summary
A method and apparatus provide for reduced cost and complexity in managing an intelligent motor in an architecture in which information is transferred between a power management device and the intelligent motor. The information may be used by an embedded processor of the motor to provide diagnostics and/or prognostics of the motor, machinery operating in conjunction with the motor, and/or a process in which the motor may be configured to operate. The power management device may remotely determine motor current information that is used by the intelligent motor to self-diagnose the intelligent motor using the motor current information.