How much do you know about power conversion control?
Think you’re an expert on designing digital control for power electronics systems? Take the quiz, just 10 questions, to see how much you know!
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Power Electronics Quiz
For designing and tuning a digital controller for a power converter, which approach will provide the most options?
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Model and simulate the controller and power converter in a system-level simulator
Use SPICE circuit simulator to design and tune digital controller
Manually code the control algorithm and tune it using a hardware setup
Select the best way to analyze the switching effects of a power electronics system and tune the cascaded controllers so that it will operate stable across varying operating conditions.
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Conduct frequency-domain analysis of the system and use bode plot or root locus to tune controllers
Conduct time-domain analysis and tune the controllers at a fixed operating point
Conduct frequency-domain analysis and tune the cascaded controller independently
Develop an average-value based model of the power electronic system before tuning controllers
Which of the following is the advantage of using Hardware-in-Loop (HIL) simulation for the test of controllers in a power electronics system?
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Test the real-time execution of controller code before verifying in a hardware prototype.
Find and correct errors before potential damage to the power electronic system.
Reduce time cost and improve development efficiency.
All of the above.
After modeling and tuning your controller, what is NOT a best practice to verify the dynamic performance of a feedback-controlled power electronics converter?
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Check the dynamic response of a time-varying load
Check the dynamic performance by testing on hardware
Check the dynamic response of a time-varying input voltage
Check the dynamic response of aging components
To verify a power converter’s ability to mitigate a fault, which is NOT a recommended practice?
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Develop and simulate state and supervisory logic model forfault handling
Develop a model to simulate fault conditions before proceeding to hardware testing
Directly test the power converter under fault conditions or all possible operating ranges
Create a test harness for fault conditions and supervisory control during simulation
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Which method below is efficient to understand how a power converter affects the overall system performance within a large electrical system (i.e. microgrids, conventional and renewable energy sources, fuel cell and battery storage systems)?
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Directly testing on hardware
SPICE simulation
Modeling and simulating the large electrical system before hardware testing
Hand coding and rapid prototyping
Which kind of simulation is suitable for validating code generated from control algorithms?
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Software-in-Loop (SIL)
Processor-in-Loop(PIL)
Hardware-in-Loop (HIL)
All of the above.
True or False: The best way to implement changes to your controller code during rapid control prototyping (RCP) is to validate changes to the control algorithm in the desktop simulation model and re-generate code.
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True
False
What technique is responsible for generating pulse width modulated (PWM) signals to control the switches of an inverter, which then produces the required modulated voltage to drive the motor at the desired speed or torque?
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Space vector modulation
Fixed-point design
Small-signal analysis
Time-domain analysis
Why should you generate C and HDL code from the control algorithms in your simulation model?
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You can avoid hand coding errors caused by misinterpretation of the algorithms or typographical errors
If you need to make changes to the code, you can verify theimpact of changes to algorithms in simulation and re-generate code
You can test your algorithms using simulation for extremeoperating and fault conditions and know that the code will behave the same asthe algorithm
All of the above.
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