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Robust Model Predictive Control of DC-DC Floating Interleaved Boost Converter With Multiple Uncertainties
IEEE Transactions on Energy Conversion ( IF 4.9 ) Pub Date : 2021-02-12 , DOI: 10.1109/tec.2021.3058524
Hossein Sartipizadeh , Farnaz Harirchi , Mohammad Babakmehr , Payman Dehghanian

DC-DC Floating Interleaved Boost Converter (FIBC) is recently introduced for converting low-level voltage generated by a renewable energy source to high-level voltage required for AC inverters. Although a desired voltage is expected at the output, designing a proper voltage gain for FIBC is challenging due to different types of uncertainties. For instance, the voltage generated by the energy source and, therefore, the input voltage of FIBC may change by a variety of parameters including external load. Furthermore, parametric uncertainty and measurement noise are other sources which can affect the control procedure. As a result, voltage gain for a fixed switching duty cycle may be uncertain. It demands a robust approach to guarantee the control performance under uncertainties without the need for individually tuning controller for each single converter. In this work, a robust model predictive control is employed to regulate the output voltage at the desired level despite the existing uncertainties. Controller parameters are fixed for any FIBC within the uncertainty range and further tuning is not required for individual converters. In addition, unlike the conventional controllers, the suggested controller is able to handle input-output constraints. Performance of the suggested controller is investigated through simulations carried out in MATLAB and the superiority of the proposed approach is verified over non-robust model predictive framework.

中文翻译:

具有多个不确定性的DC-DC浮置交错式Boost变换器的鲁棒模型预测控制

最近推出了DC-DC浮置交错式升压转换器(FIBC),用于将可再生能源产生的低电平电压转换为AC逆变器所需的高电平电压。尽管在输出端期望有期望的电压,但由于不确定性的类型不同,为FIBC设计合适的电压增益仍具有挑战性。例如,由能量源产生的电压以及因此FIBC的输入电压可能会因各种参数(包括外部负载)而发生变化。此外,参数不确定性和测量噪声是可能影响控制程序的其他来源。结果,对于固定的开关占空比的电压增益可能是不确定的。它需要一种可靠的方法来确保在不确定性下的控制性能,而无需为每个转换器单独调节控制器。在这项工作中,尽管存在不确定性,仍采用鲁棒的模型预测控制将输出电压调节到所需的水平。不确定性范围内的任何FIBC的控制器参数都是固定的,单个转换器不需要进一步调整。另外,与常规控制器不同,建议的控制器能够处理输入输出约束。通过在MATLAB中进行的仿真研究了所建议控制器的性能,并证明了所提出方法的优越性优于非鲁棒模型预测框架。尽管存在不确定性,但仍采用稳健的模型预测控制将输出电压调节到所需的水平。不确定性范围内的任何FIBC的控制器参数都是固定的,单个转换器不需要进一步调整。另外,与常规控制器不同,建议的控制器能够处理输入输出约束。通过在MATLAB中进行的仿真研究了所建议控制器的性能,并证明了所提出方法的优越性优于非鲁棒模型预测框架。尽管存在不确定性,但仍采用稳健的模型预测控制将输出电压调节到所需的水平。不确定性范围内的任何FIBC的控制器参数都是固定的,单个转换器不需要进一步调整。另外,与常规控制器不同,建议的控制器能够处理输入输出约束。通过在MATLAB中进行的仿真研究了所建议控制器的性能,并证明了所提出方法的优越性优于非鲁棒模型预测框架。建议的控制器能够处理输入输出约束。通过在MATLAB中进行的仿真研究了所建议控制器的性能,并证明了所提出方法的优越性优于非鲁棒模型预测框架。建议的控制器能够处理输入输出约束。通过在MATLAB中进行的仿真研究了所建议控制器的性能,并证明了所提出方法的优越性优于非鲁棒模型预测框架。
更新日期:2021-02-12
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