In applications that require a high availability and high performance (for example aerospace),modular power electronics and multi-phase machines represent an advantageous choice. In this framework, a control system able to handle a high number of PWM signals and communication interfaces as well as featuring a high computational power is required. This paper proposes a novel HDL plus soft-core approach to be implemented on System-on-Chip hardware which allows for the efficient and modular implementation of the modern control techniques with strong guarantees in terms of determinism. The proposal lies in the adoption of a very simplified and optimized floating-point soft-core, the femtocore (fCore) and its tool-chain, which allows C-like implementation of complex algorithms in a HDL-design power electronics control framework. Several fCore units can be arranged for parallel processing to handle the time requirements of a complex modular system even with low sampling time (100 kHz or more). The proposed architecture is experimentally validated in a proof-of-concept, six-phase electric machine including a comparison against a traditional method.

中文翻译：

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Femtocore：用于垂直集成高性能实时控制的专用处理器

在需要高可用性和高性能的应用（例如航空航天）中，模块化电力电子设备和多相电机是一种有利的选择。在这个框架中，需要一个能够处理大量 PWM 信号和通信接口以及具有高计算能力的控制系统。本文提出了一种在片上系统硬件上实现的新型 HDL 加软核方法，该方法允许现代控制技术的高效和模块化实现，并在确定性方面有很强的保证。该提议在于采用非常简化和优化的浮点软核、毫微微核 (fCore) 及其工具链，它允许在 HDL 设计的电力电子控制框架中以 C 语言方式实现复杂的算法。可以安排多个 fCore 单元进行并行处理，以处理复杂模块化系统的时间要求，即使采样时间较短（100 kHz 或更多）。所提出的架构在概念验证的六相电机中进行了实验验证，包括与传统方法的比较。