Nonlinear FCS-MPC strategy of NPC/H-5 L inverter based on satisfactory optimization algorithm |
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| Affiliation: | 1. Bussiness School, Sichuan University, Chengdu, 610064, P.R. China;2. College of Management Science, Chengdu University of Technology, Chengdu, 610059, P.R. China;1. School of Economics & Management, Yanshan University, Qinhuangdao 066004, PR China;2. Gannan Normal University, Ganzhou 341000, PR China;3. Research Center of Hubei Logistics development, Hubei University of Economics, Wuhan 430205, PR China;1. School of information engineering, Guangdong Mechanical & Electrical College, Guangzhou 510550, PR China;2. Department of Information Science and Technology, Guangdong University of Foreign Studies South China Business College, Guangzhou 510545, PR China;1. School of Internet of Things Engineering, Jiangnan University, Wuxi 214122, China;2. Key Laboratory of Advanced Process Control for Light Industry Ministry of Education, Jiangnan University, Wuxi 214122, China;3. School of Electrical, Electronic and Computer Engineering, Lancaster University, Bailrigg, Lancaster, LA1 4YW, United Kingdom;1. School of Science, East China Jiaotong University, Nanchang , Jiangxi, Postal code 330013, PR China;2. School of Mathematics, South China Normal University, Guangzhou, Guangdong, Postal code 510631, PR China;3. School of Mathematics and Computer Science, Guizhou Normal University, Guiyang, Guizhou, Postal code 550001, PR China |
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| Abstract: | In the design of the cost function in the nonlinear finite control set model predictive control (FCS-MPC) system, the traditional method based on weighting factors demonstrates some limitations, such as the weighting factors adjusting and heavy predictive calculation due to the increased number of voltage vectors applied in controlling multilevel converters. This paper proposes a simplified FCS-MPC method based on common mode voltage satisfactory optimization, which could considerably reduce the predictive calculation by the optimized switch combination and simplify the cost function design. Moreover, satisfactory optimization is adopted to achieve the accuracy control of common-mode voltage amplitude without adjusting process of weighting factors. The simulation and experimental results verify the feasibility of this control strategy. |
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