Customized Sensorless Motor Drive

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Customer

French Oil & Gas specific tools provider

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Action delivered

Feasibility Study, Prototyping
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Area

Oil & Gas

Sensorless motor drive is PMSM or BLDC controller designed for the oil and gas industry based on a single microcontroller architecture. It withstands various harsh environments while providing high reliability for applications with no accurate position sensing need.

Electronic Board

Drive design workflow

Matlab Simulink Embedded Code Generation

Drive design workflow

The drive design follows a specific model-based design workflow:

1. Design: design of the drive with respect to specifications.

2. Simulation: simulation models are built for the designed drive and its control.

3. Code Generation: an embedded code is automatically generated from simulation model. 4. Test and validation on target

5. Compliance verification : if the design features do not meet the specifications, issues are addressed by checking and updating the simulation model and/or the design. The workflow steps will be repeated until the design becomes compliant with the specifications.

6. Delivery

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The components lever to efficiency

The control strategy is based on a sensorless six-step control. The driver can handle high temperature conditions (up to 175 °C) and it is designed for a permanent application. The components involved in the design are restrained to customers approved components. The microcontroller requires only 3.3 V power supply with a very low power consumption (within 250 mW) and it has various communication modes: I2C, SPI, USB and USART/UART. The control part is compact and can fit in 35 mm x 100 mm area.

What Makes Our Response Unique

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Low power consumption

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500 rpm - 4 000 rpm

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Matlab Simulink model based design

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Temperature

Up to 347 °F (175 °C)

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