Results 41 to 50 of about 5,081,374 (170)
This paper adopts a Neutral‐Point‐Clamped H‐bridge (NPC‐H) DAB topology to mitigate voltage stress on the input‐side switches. For both charging and discharging scenarios, a direct current control method is proposed using the output current as the primary control variable.
Yunxiang Jiang +3 more
wiley +1 more source
Research on Neutral Point Potential Control Arithmetic for Three-level Invertor
It introduced the theory of neutral-point-clamped (NPC) three-level inverter and its PWM method. It analyzed why DC-side capacitors’ voltage fluctuated and proposed the strategy of adding zero-sequence component to every phase modulation wave for ...
LIU Lingling, WANG Weian, CHEN Yifeng
doaj
Discontinuous pulse width modulation (DPWM) is useful to improve the efficiency of a single-phase five-level T-type neutral-point-clamped (5LT-NPC) inverter and the reliability of the power devices.
Kyu-Jin Min, Ui-Min Choi
doaj +1 more source
This study explores fault diagnosis methods for PWM inverters in a wind energy conversion system using a doubly fed induction generator. Two intelligent diagnostic techniques, fuzzy resonant logic and artificial neural networks, are proposed. The fuzzy logic method monitors inverter faults in real time, whereas the neural network method uses 3D feature
Sakina Aoun +7 more
wiley +1 more source
The finite control set model predictive control (FCS‐MPC) algorithm for a nine‐level switched capacitor‐based quadruple‐boost multilevel inverter (QBMLI) is proposed in for the solar PV system. Sampling time‐based comprehensive analysis for tracking performance, dynamic performance, waveform quality and capacitor voltage ripple.
Vijay Kumar Singh +4 more
wiley +1 more source
Modeling and Modulation of NNPC Four-Level Inverter for Solar Photovoltaic Power Plant
Photovoltaic (PV) power plant is an attractive way of utilizing the solar energy. For high-power PV power plant, the multilevel inverter is of potential interest. In contrast to the neutral-point clamped (NPC) or flying capacitor (FC) multilevel inverter,
Xiaoqiang Guo +3 more
doaj +1 more source
This article proposes a novel electromagnetic rotary negative‐sequence compensator based on dual rotary phase‐shifting transformers to mitigate negative‐sequence currents in single‐phase traction power supply systems. The topology, mathematical model and coordinated speed control strategy are established, with sequence characteristics analysis ...
Xiangwu Yan +5 more
wiley +1 more source
-Level Neutral-Point-Clamped Converter
Capacitor voltage imbalance is a well-recognized issue for neutral-point-clamped (NPC) converters. Hardware solutions increase the system cost and complexity, while existing software solutions generally involve sophisticated algorithms, making it ...
Beniwal, N +17 more
core +1 more source
ABSTRACT High‐phase electronic pole‐changing induction machines (ePCIMs) offer inherent redundancy and extended torque‐speed capability, making them suitable for high‐power traction applications such as electric buses and heavy‐duty electric vehicles. However, pole‐changing transitions produce severe transient currents that degrade dynamic performance ...
S. Mehdi Seyedi, Hamid A. Toliyat
wiley +1 more source
Comparison of SPWM and SVM Based Neutral Point Clamped Inverter fed Induction Motor [PDF]
Neutral point clamped multi-level inverter (NPCMLI) has a wide application prospect in high-voltage and adjustable speed drive systems due to its low stress on switching devices, low harmonic output, and simple structure.
R., Ramesh +2 more
core +1 more source

