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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Yan Ma Zhixin Miao Disfani, V.R. Lingling Fan |
| Copyright Year | 2014 |
| Description | Author affiliation: Dept. of Electr. Eng., Univ. of South Florida, Tampa, FL, USA (Yan Ma; Zhixin Miao; Disfani, V.R.; Lingling Fan) |
| Abstract | Pulse Width Modulation (PWM) and Model Predictive Control (MPC) are two switching methods for Modular Mutlilevel Converter (MMC) presented in the literature [1], [2]. PWM switching cannot mitigate circulating currents in the converter bridges. An MPC method proposed in [2] compares all switching sequences and finds the optimal one to minimize the objective function (a weighted sum of the absolute values of the ac current deviation, capacitor voltage deviation, and the circulating current of the next time step). The computation effort is significant when the numbers of submodules increase. In this paper, a one-step model predictive control with minimum computing effort has been proposed to control the ac currents, keep the capacitor voltages nominal, and mitigate the circulating currents. The algorithm determines the ideal values of the lower-level and upper-level voltages on each phase based on the current state. The algorithm also determines which submodules to be switched on/off for the next time step according to the corresponding upper/lower current. The performance of the proposed method is evaluated via simulation in Matlab SimPowerSystems. The PWM and the proposed MPC are compared for their control effort and performance. |
| Starting Page | 1 |
| Ending Page | 5 |
| File Size | 482240 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781479964154 |
| DOI | 10.1109/PESGM.2014.6939209 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-07-27 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Pulse width modulation Capacitors Switches Mathematical model Voltage control Predictive control Converters Model Predictive Control Modular Multilevel Converter Pulse Width Modulation |
| Content Type | Text |
| Resource Type | Article |
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