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Heterogeneous Control Platform Design for Power Conversion Systems
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DOI：10.1109/TII.2021.3104285.png)
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Abstract
En 中文
Digitally controlled switch-mode power conversion systems require an embedded computing platform to execute, in real-time (RT), closed-loop algorithms that regulate the power flow. Since legacy control software design is traditionally rooted to single-core processors, recent trends in power electronics toward faster switching devices and multilevel topologies will challenge their computational capacity and reliability to meet RT deadlines. With Internet-of-Things driving down the cost of a general-purpose system-on-chip (SoC), combining a multicore application processor and a field-gate programmable array (FPGA) on single device, this article introduces a codesign workflow and a runtime architecture for the heterogeneous deployment of multirate control algorithms. Code migration toward the FPGA exploits high-level synthesis, while a Linux-Xenomai dual-kernel operating system manages the synchronization and the parallel execution of the tasks. Following sections will describe and benchmark the selected key technologies and validate them on a small-scale grid-connected converter emulator.
Keywords:
Task analysis
Field programmable gate arrays
Kernel
Delays
Switches
Synchronization
Program processors
Control design
field programmable gate arrays
high-level synthesis (HLS)
multicore processing
power conversion
real-time (RT) systems
runtime
software (SW) architecture