Results 191 to 200 of about 5,826 (233)
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SHE-PWM with overmodulation mode in a three-level NPC inverter
2015 IEEE 13th Brazilian Power Electronics Conference and 1st Southern Power Electronics Conference (COBEP/SPEC), 2015The well known Selective Harmonic Elimination pulse width modulation (SHE-PWM) is widely used by medium voltage drive applications due its symmetry and control of the low order harmonics that affect output torque, even with low switching frequency.
F. G. Guimarães +3 more
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Electrolytic capacitor ripple current analysis of SPWM NPC three-level inverter
2018 13th IEEE Conference on Industrial Electronics and Applications (ICIEA), 2018Neutral point clamped (NPC) three level inverter is widely used in high voltage and high power applications. The capacitance of DC bus plays an important role in the inverter. The DC capacitor current and neutral point current affect the lifetime of the electrolytic capacitor.
Jianrui Li +4 more
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Control of three-level NPC inverter based grid connected PV system
2015 3rd International Conference on Control, Engineering & Information Technology (CEIT), 2015This paper presents the control of a photovoltaic distributed generation system based on dual-stage topology of DC-DC boost converter and three-level neutral-point-clamped (NPC) voltage source inverter (VSI). Decoupling control strategy of three-level VSI is proposed to control the current injected into the grid, reactive power compensation, and DC ...
A. Zorig +3 more
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Performance Analysis of Grid-Connected Three-Phase Three-Level NPC Inverter
2018 IEEE 8th Power India International Conference (PIICON), 2018Due to the limited availability of fossil fuels, renewable energy sources such as solar and wind are widely used these days. The Neutral Point Clamped (NPC) inverters are used for low and medium power applications and plays important role in improving the efficiency of the system.
Ravina Kharedia, Rupanshi Batra
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Implement of High Power NPC Three-Level Inverter Equipped with IGCTs
2005 IEEE International Conference on Industrial Technology, 2006This paper presents a high power three-level inverter equipped with integrated gate-commutated thyristor (IGCT) devices. The power system consisting of a twelve-pulse rectifier and a three-level neutral point clamped (NPC) inverter. A TMSF240 DSP controller is used for filled with PWM strategy. A valid PWM control strategy is proposed which can improve
null Qiongxuan Ge +4 more
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Estimation of Equivalent Capacitance in Three-Level NPC Inverter SiC-Based
2025 International Conference on Clean Electrical Power (ICCEP)This paper presents an algorithm to estimate the equivalent capacitance of the DC bus in a three-phase, three-level neutral point-clamped inverter. The proposed method involves the injection of a low-frequency current through the midpoint of the converter, inducing a low-frequency oscillation in the DC bus.
Vancini L. +5 more
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A METHOD OF REDUCING SWITCHING LOSSES IN THREE-LEVEL NPC INVERTER
2016POWER ELECTRONICS AND DRIVES; ISSN 2451 ...
Rogowski, Krzysztof, Beniak, Ryszard
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Research on harmonic optimal PWM for NPC three-level voltage inverters
2018 3rd International Conference on Intelligent Green Building and Smart Grid (IGBSG), 2018This paper presents a digital implement method of harmonic optimal pulse width modulation (HOPWM) for the neutral-point clamped (NPC) three-level inverter(TLI), based on digital signal processor (DSP). First, the total stator harmonic current distortion was set as the objective function, harmonic optimal PWM is designed for NPC TLI Second, the ...
Ji Zhang +4 more
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An Active Thermal Control Scheme of Three-level NPC Inverters
2022 IEEE 17th Conference on Industrial Electronics and Applications (ICIEA), 2022Wenjun He +5 more
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A New Switch Vector Scheme Control for Three-Level NPC Inverter
2019 IEEE 3rd Conference on Energy Internet and Energy System Integration (EI2), 2019Space vector PWM principle of neutral point clamped (Neutral Point Clamped, referred NPC) three-level inverter is introduced in this paper to propose three-level NPC inverter vector control method of a new switching vector graph. Based on the new switch vector diagram, it requires only a simple arithmetic to determine vector in which the role of the ...
Shuqi Shi, Qian Li, Jinyun Jiang
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