Results 271 to 280 of about 9,713 (302)
Some of the next articles are maybe not open access.
Neutral point balancing technique for 3-level neutral point clamped converter with servo system
2017 IEEE 58th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON), 2017Neutral point voltage drift compensation technique in 3-level NPC multilevel converter and servo system is described in the paper. Analytical expressions are obtained for power subsystem elements parameters of servo drive system. Simulation of servo system, based on PMSM motor with 3-level NPC converter is considered.
Pavel Zolov +3 more
openaire +1 more source
Improved Four-Level Neutral Point Clamped Converter
2021 24th International Conference on Electrical Machines and Systems (ICEMS), 2021Xinmin Jia, Zhe Huang, Jianfei Chen
openaire +1 more source
PWM Method of a Three-Level Neutral-Point-Clamped Converter under Neutral Point Imbalance Condition
APEC 07 - Twenty-Second Annual IEEE Applied Power Electronics Conference and Exposition, 2007Imbalance of the neutral-point potential in three-level neutral-point-clamped converter may appear in some operating conditions. This paper analyzes the voltage distortion caused by the imbalance of the neutral point potential in a three-level neutral-point-clamped converter, and also describes the PWM method to generate the low-frequency harmonics ...
Jang-Hwan Kim, Seung-Ki Sul
openaire +1 more source
Control of a four-level active neutral point clamped converter with neutral point voltage balance
2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia), 2016In this paper, a carrier-based modulation method with optimal zero-sequence signal injection has been devised to modulate the converter and regulate the DC-link neutral points' voltages of a four-level active neutral point clamped (ANPC) converter. With the proposed control strategy, the two neutral points' voltages can be well controlled with a back ...
Jin, Bosen, Yuan, Xibo
openaire +2 more sources
Neutral point voltage control of neutral point clamped converters
The most widely used Medium Voltage multilevel converter is the 3-level AC/DC Neutral-Point Clamped (NPC) converter. It provides: a) twice the voltage rating, b) a reduction in the volumetric size and weight over the traditional 2-level converter. However, these benefits are lost when the Neutral Point (NP) drifts away from its ideal value (0 V).The ...openaire +1 more source
A New Hybrid Multilevel Nested Neutral Point Clamped (NNPC) Converter
2018 IEEE Canadian Conference on Electrical & Computer Engineering (CCECE), 2018This paper presents a new hybrid multilevel inverter topology which combines a four-level nested neutral point clamped (NNPC) converter with a half-bridge inverter. The converter has less components compared to that of other multilevel converters and features a modular structure for cascading multiple H-bridges to produce higher voltage levels.
Milan Kordic +2 more
openaire +1 more source
Pulse-Width-Modulation of Neutral-Point-Clamped Sparse Matrix Converter
2007 IEEE Industry Applications Annual Meeting, 2007Sparse matrix converter is an alternative "all- semiconductor" energy processor proposed recently for converting an ac source with fixed magnitude and frequency to a variable voltage and frequency supply that can meet the requirements of a particular industry application. In principle, sparse matrix converter is constructed by connecting a front-end bi-
P. C. Loh +4 more
openaire +1 more source
A Reliable Nested Neutral-Point-Clamped (RNNPC) Converter
2022 5th International Conference on Power Engineering and Renewable Energy (ICPERE), 2022Faramarz Faraji, Honnyong Cha
openaire +1 more source
Bridgeless Filterless Neutral-Point-Clamped Resonant AC/DC Converter
IEEE Transactions on Industrial Electronics, 2023Myeong-Hwan Kim +2 more
openaire +1 more source