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Eliminating Common Mode Conducted Emissions in Three-Phase Four-Leg Inverters
2021 IEEE Electric Ship Technologies Symposium (ESTS), 2021This paper presents a control method to eliminate the common mode voltage created by a three-phase, four-leg voltage source inverter. Wide band gap devices create an opportunity to use pulse density modulation instead of pulse width modulation, with two inverter poles switching high and two low at all times to eliminate common mode voltage without ...
Alexander L. Julian +2 more
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Novel random pulse position modulation for three-phase four-leg inverters
Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering, 2018Aiming at improving the harmonic spectra spreading effect, two randomized pulse position modulation strategies are proposed for three-phase four-leg inverters. Based on the volt-second balance law and the fixed switching frequency, the first proposed strategy places the center randomly during one carrier cycle with a limited degree of freedom, and the
Tinglong Pan +3 more
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Frequency-Adaptive Repetitive Control for Three-Phase Four-Leg V2G Inverters
IEEE Transactions on Transportation Electrification, 2021Three-phase four-leg inverters with an LCL filter are employed as onboard vehicle to grid (V2G) inverters due to their advanced features—high utilization of the dc bus voltage, counteraction of unbalanced voltages, and so on. Repetitive control (RC) can exactly track periodic signals with known frequency, which offers a simple high-accuracy current ...
Cuilan Tan +3 more
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Model predictive control of quasi-Z source three-phase four-leg inverter
IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society, 2015This paper presents a model predictive control (MPC) scheme for quasi-Z source (qZS) three-phase four-leg inverters. In order to cope with drawbacks of the traditional voltage source inverters (VSI)s, the qZS three-phase four-leg inverter topology is proposed in this study. To improve control capability of the controller, the MPC scheme is used.
Sertac Bayhan, Haitham Abu-Rub
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Three-Phase Four-Leg Inverter Based on Voltage Hysteresis Control
2010 International Conference on Electrical and Control Engineering, 2010As the output unit of variety distributed generation systems, the final power quality is determined by three-phase four-leg inverter. For the three-phase four-leg inverter, this paper presents a dynamic reference voltage hysteresis control scheme. Firstly, based on the existing hysteresis comparison method, this method improves the systems control ...
Xiaoyong Zhang, Jun Wang, Chuan Li
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Design of the Neutral Line Inductor for Three-phase Four-leg Inverters
2019 IEEE Sustainable Power and Energy Conference (iSPEC), 2019The three-phase four-leg inverter is one of the advanced solutions to feed unbalanced loads. However, the design of the neutral line hasn’t been well studied yet. This paper presents a mathematical model of the three-phase four-leg inverter with neutral line inductor, which is decoupled in the αβ0 coordinate and illustrates the effects of the neutral ...
Weiqian Cai +7 more
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Simulation research on the control strategy of three-phase four-leg inverter
2010 International Conference on Computer Application and System Modeling (ICCASM 2010), 2010The four-leg inverter is able to provide simultaneous power supply for three-phase or single-phase load with symmetrical voltage and constant frequency. The prerequisite is that the four-leg inverter must be controlled appropriately, so the synchronous rotating control strategy based on the decomposition sequence is proposed in this paper. Firstly, the
null Chen Hongbing, null Min Jingyan
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An improved deadbeat plus plug-in repetitive controller for three-phase four-leg inverters
IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, 2017An improved deadbeat plus plug-in repetitive control scheme is proposed for grid-connected three-phase four-leg inverters to achieve fast and accurate feed-in grid current tracking. Discrete-time mathematical model of the three-phase four-leg grid-connected inverter is developed.
Yanyi Xing +4 more
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Integral-resonant voltage control for three-phase four-leg voltage source inverters
2012 IEEE Energy Conversion Congress and Exposition (ECCE), 2012This paper deals with a newly-conceived voltage control method for three-phase four-leg voltage source inverters (VSI) which are being required in autonomous power generating units devoted to supply both three-phase and single-phase electrical loads in four-wire electric power distribution systems.
LIDOZZI, ALESSANDRO +3 more
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Application of virtual synchronous generator technology in three-phase four-leg inverter
2017 20th International Conference on Electrical Machines and Systems (ICEMS), 2017A large number of distributed generations (DGs) connected to the distribution network have a significant impact on the stability of the power system due to their low inertia. Meanwhile the DGs are generally linked to the end of the distribution network, where power quality problems are very common. This paper applies virtual synchronous generator (VSG)
Zisen Qu +3 more
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