Results 1 to 10 of about 3,921,823 (274)
Optimized Synchronous Pulse Width Modulation Strategy Based on Discontinuous Carriers
Energies, 2023 This article proposes a new technique called optimized discontinuous carrier pulse width modulation (ODCPWM), whose main objective is to solve the issue of significant output voltage harmonics of conventional synchronous carrier modulation at low carrier wave ratios.
Tingna Shi, Xuefeng Jin
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Thermally Compensated Discontinuous Modulation Strategy for Cascaded H-Bridge Converters [PDF]
IEEE Transactions on Power Electronics, 2018 A widely adopted multilevel converter topology is the cascaded H-bridge (CHB), as it can provide voltage and power scalability. However, since the CHB converter can be composed by cells with different remaining lifetime, it could be useful to delay a fault of higher aged cells in order to prolong the entire converter's lifetime.
Markus Andresen +2 more
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Modulation strategy for highly reliable cascade H-Bridge inverter based on discontinuous PWM [PDF]
2017 IEEE Applied Power Electronics Conference and Exposition (APEC), 2017 The Cascaded H-Bridge (CHB) topology is widely employed in high power and high voltage applications due to advantages of the low dv/dt, the low EMI noise, and the low filter inductance. An issue of this modular system is the possible unequal thermal stress of the power semiconductors in the cells, which is affecting the reliability and leads to ...
Markus Andresen +2 more
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Machines, 2023 The aim of this paper is to present our research into the reduction of vibrations in induction motors. The use of power inverters results in the generation of electrical harmonics, which increase the level of the mechanical vibrations of electrical machines.
Ruiz-Gonzalez, Antonio +3 more
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IET Power Electronics, 2016 Owing to their capability to reduce switching losses, discontinuous pulse‐width modulations (DPWMs) have been widely discussed in the last decades. However, when using the classical DPWMs in three‐level (3L) converters, neutral‐point (NP) voltage balancing may not be efficiently achieved, because the reference signals are clamped and saturated at ...
Fusheng Wang, Renxian Cao, Xing Zhang
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IET Power Electronics, 2021 This paper presents a comparative analysis of the continuous space vector pulse width modulation and the discontinuous space vector pulse width modulation in terms of the switching losses and current ripple reduction for the unbalanced two‐phase four‐leg
Kaset Muangthong, Chakrapong Charumit
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Hybrid Space Vector PWM Strategy for Three-Phase VIENNA Rectifiers
Sensors, 2022 Vienna rectifiers are widely used, but they have problems of zero-crossing current distortion and midpoint potential imbalance. In this paper, an improved hybrid modulation strategy is proposed.
Yaodong Wang +3 more
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A Modular Multilevel Dual Buck Inverter With Adjustable Discontinuous Modulation
IEEE Access, 2020 Conventional single-cell dual buck inverters present high reliability, however they cannot be directly used in high voltage applications, because of the limited voltage rating of commercial switching devices.
Dan Lyu +5 more
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IEEE Transactions on Industrial Electronics, 2022 Impedance-source inverters provide a promising single-stage power conversion with boost-buck capabilities and inverter legs short-circuit immunity. To achieve superior thermal and output harmonic performance, two novel discontinuous modulation strategies for the three-phase quasi-Z source inverter, called the maximum-boost discontinuous space vector ...
Ping Liu 0010 +4 more
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Minimum Loss Discontinuous Pulse-Width Modulation Per Phase Method for Three-Phase Four-Leg Inverter
IEEE Access, 2020 The three-phase four-leg inverter (TPFLI) provides unbalanced voltage to a load or injects unbalanced current to a grid to compensate unbalanced current. However, it has a high switching loss because of the fourth leg. This paper presents a discontinuous
Soo Yeon Kim +2 more
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