Vincent MignardSegment [email protected] October 2014
Renesas Electronics Europe
00000-A
Rev. 1.00
What if you could integrate proven software in your inverter?
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2KW inverter
3-phase Brushless Motor
Designing electronics to drive submarine motors…
Marine battery
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… but too many restrictions in the “off the shelf” inverter
Driving in trapezoidalgenerate torque ripple,
electrical & audible noise
No efficient energy management, PWM
frequency fixed…
Minimum speed is fixed and too high. Only clock-wise
rotation…
No software control, ownership and overall cost
too high
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What is the desired solution?
Flexible speed range Counter-clock-wise rotation Higher efficiency Cost & weight reduction Energy management Silent operation In-house software expertise
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Guess what… I found a possible solution
Field Oriented Control Sensorless algorithm Auto-calibration Motor self-identification 24VDC / 7Amax
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But what about the source code access and its reliability?
Royalty free source code Proven over 60 motors
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Med
Efficiency
Low High
Med
Dynamics
Low High
Example
How to ensure the best trade-off: efficiency versus dynamics?
Test & find the rightPWM frequency &
control loop frequency for your application.
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How to quickly test an unknown motor?
Current controllerCoefficients tuning
Identify intrinsic Motor parameters
Display motor current
Display motor phase
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Let’s recap… the benefits of using RX111 ref. platform?
Ensure longer battery lifetime as current consumption is optimized
Smoother control of the submarine: start and direction control
Smaller power stage and less weight
Expertise in-house as proven s/w royalty-free and auto-calibration available
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“We are family”
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YROTATE-IT-RX111
Drive your Permanent Magnet Motors in less than 1 minute using mouse Use proven software featuring Vector control sensorless algorithm Discover the Royalty Free Software source code, no E1 needed Ref. kit are well-proven as over 60 Motors were tuned, no Oscillo used Kit capability: 24/48VDC , 7AMAX
1.5KW/300VDC ext. power stage available
Latest update on www.Renesas.eu/motor
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To experiment by yourself:Evaluate the kits !
Part-name: YROTATE-IT-RX111Price: Below €200
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