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首页> 外文会议>2011 First Workshop on Predictive Control of Electrical Drives and Power Electronics >FPGA implementation of online finite-set model based predictive control for power electronics
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FPGA implementation of online finite-set model based predictive control for power electronics

机译：电力在线基于有限集模型的预测控制的FPGA实现

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Recently there has been an increase in the use of model based predictive control (MBPC) for power-electronic converters. MBPC allows fast and accurate control of multiple controlled variables for hybrid systems such as a power electronic converter and its load. The computational burden for this control scheme however is very high and often restrictive for a good implementation. This means that a suitable technology and design approach should be used. In this paper the implementation of finite-set MBPC (FS-MBPC) in field-programmable gate arrays (FPGAs) is discussed. The control is fully implemented in programmable digital logic by using a high-level design tool. This allows to obtain very good performances (both in control quality, speed and hardware utilization) and have a flexible, modular control configuration. The feasibility and performance of the FPGA implementation of FS-MBPC is discussed in this paper for a 4-level flying-capacitor converter (FCC). This is an interesting application as FS-MBPC allows the simultaneous control of the output current and the capacitor voltages, yet the high number of possible switch states results in a high computational load. The good performance is obtained by exploiting the FPGA's strong points: parallelism and pipe-lining. In the application discussed in this paper the parallel processing for the three converter phases and a fully pipelined calculation of the prediction stage allow to realize an area-time efficient implementation.
机译：最近，用于电力电子转换器的基于模型的预测控制（MBPC）的使用有所增加。 MBPC允许快速，准确地控制混合系统的多个控制变量，例如电力电子转换器及其负载。然而，该控制方案的计算负担非常高，并且通常对于良好的实现是有限制的。这意味着应该使用合适的技术和设计方法。本文讨论了有限集MBPC（FS-MBPC）在现场可编程门阵列（FPGA）中的实现。通过使用高级设计工具，该控件可以完全以可编程数字逻辑实现。这样可以获得非常好的性能（在控制质量，速度和硬件利用率方面），并具有灵活的模块化控制配置。本文针对4级飞电容转换器（FCC）讨论了FS-MBPC的FPGA实现的可行性和性能。这是一个有趣的应用，因为FS-MBPC允许同时控制输出电流和电容器电压，但是大量可能的开关状态导致很高的计算负荷。通过利用FPGA的强项（并行性和流水线）可以获得良好的性能。在本文讨论的应用中，三个转换器相的并行处理以及预测阶段的完整流水线计算可实现高效的时空实现。

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