Electric Motor Emulator With Integrated Parameter Identification
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Solution Overview
Problem
The existing methods for parameterizing electric motor emulators require extensive additional equipment, increasing complexity, cost, and space requirements, as well as temporal effort, especially when physically present electric motors need to be emulated for metrological identification.
Innovation Solution
An integrated emulation device that combines an emulation unit and an identification unit, allowing for parameter identification and emulation of electric motors within a single device, utilizing existing components for both functions, such as a power unit, model unit, data unit, and measured value detection unit, to simplify and reduce the effort and cost of parameter identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate identification equipment is used for parameter identification, then measurement accuracy is improved, but device complexity increases
Solution Approach 1:
The patent combines the identification unit with the emulation device into a single integrated system. The identification unit shares hardware components (power supply, data acquisition, processing units) with the emulation device, eliminating the need for separate identification equipment while maintaining measurement accuracy through coordinated operation of shared components.
Solution Approach 2:
The emulation device is designed with multi-functionality, serving both as an emulation device for testing electrical devices and as an identification device for parameter identification. The same power unit, data acquisition unit, and processing unit are utilized for both emulation and identification functions, reducing overall system complexity.
2Reliability
If multiple separate units are used for emulation and identification, then functional reliability is improved, but space requirements increase
Solution Approach 1:
The identification unit is merged with the emulation device, sharing the same housing and physical space. Both functions operate within the same device boundaries, significantly reducing the total space required while maintaining functional reliability through proper isolation and coordination of the two functions within the integrated architecture.
3Measurement precision
If extensive additional equipment is used for parameter identification, then identification accuracy is improved, but time consumption increases
Solution Approach 1:
The integrated design allows for continuous operation where the emulation device can perform parameter identification during periods when it is not actively emulating, or switch between functions without requiring setup/teardown of separate equipment. The shared components remain powered and ready, eliminating time losses associated with equipment configuration.
Solution Approach 2:
The identification unit is pre-configured and integrated within the emulation device, with all necessary hardware and software components ready for immediate parameter identification. This preliminary preparation eliminates the time required to set up separate identification equipment and ensures rapid transition to identification mode when needed.
4Measurement precision
If separate identification equipment is used, then measurement capability is improved, but cost increases
Solution Approach 1:
The emulation device incorporates multi-functional capabilities, with the same hardware components serving both emulation and identification purposes. The power supply, data acquisition unit, and processing unit are designed to perform dual functions, eliminating the need to manufacture and purchase separate identification equipment, thereby reducing overall system cost.
Solution Approach 2:
By merging the identification functionality into the existing emulation device, the patent eliminates duplicate hardware purchases and reduces manufacturing costs. The shared components are designed once and serve both functions, reducing the total bill of materials and manufacturing complexity compared to maintaining separate identification equipment.
Data Source
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AI summary
The invention relates to an emulation device (60) for emulating an electric motor (40) in order to reproduce at least one property of an electric motor (40) when checking an electric device (30), in particular a drive converter (30), comprising at least one emulation unit (61, 62, 63, 64) for providing an emulation function in order to carry out the emulation using at least one motor parameter of the electric motor (40), wherein an identification unit (66) for providing an identification function is integrated into the emulation device (60) in order to carry out a parameter identification of the at least one motor parameter in the electric motor (40).