Conventionally, the dual-loop PI controllers are designed for the single-phase boost power factor correction (PFC) converters operating under continuous conduction mode (CCM), which is not available to perform rapid adaptations to plant uncertainties caused by the different operation modes and the parameter variations. In order to improve the control performance and robustness, a cascaded model-free predictive control (MFPC) scheme is proposed based on the unified ultra-local model under CCM and discontinuous conduction mode (DCM) for the single-phase boost power factor correctors. Different from the traditional sluggish PI controllers, the proposed control law is adaptive to the operation mode and sudden variations with the algebraic identification technique, thus providing high-quality line current and fast dynamic characteristic for the full power operating range. Comparative simulations and experiments with PI control scheme are provided to certificate the effectiveness of the proposed control scheme.

中文翻译：

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用于单相升压功率因数校正转换器的级联无模型预测控制

传统上，双环 PI 控制器是为在连续导通模式 (CCM) 下运行的单相升压功率因数校正 (PFC) 转换器设计的，无法快速适应由不同运行模式和参数变化。为了提高控制性能和鲁棒性，针对单相升压功率因数校正器，基于CCM和非连续导通模式（DCM）下的统一超局部模型，提出了级联无模型预测控制（MFPC）方案。与传统的迟缓 PI 控制器不同，所提出的控制律通过代数辨识技术适应运行模式和突变，从而为全功率工作范围提供高质量的线路电流和快速的动态特性。提供了与 PI 控制方案的比较模拟和实验，以证明所提出的控制方案的有效性。