Results 41 to 50 of about 587 (183)

Multi-Step Predictive Current Control for NPC Grid-Connected Inverter

IEEE Access, 2019
Aiming at improving the quality of output current when the inverter is connected to the grid, this paper proposes a control strategy of neutral point clamped (NPC) grid-connected inverter based on radial basis function neural network (RBFNN) multi-step ...
Yunjun Yu, Xianzheng Wang
doaj   +1 more source

Fault Diagnosis and Tolerant Control of Three-Level Neutral-Point Clamped Inverters in Motor Drives

Energies, 2020
This paper presents an extension theory-based assessment method to perform fault diagnosis for inverters in motor driving systems. First, a three-level neutral-point clamped (NPC) inverter is created using the PSIM software package to simulate faults for
Kuei-Hsiang Chao, Chen-Hou Ke
doaj   +1 more source

Techno‐Economic and Quasi‐Dynamic Load Flow Analysis of a Hybrid Renewable Microgrid for Coastal Industrial Loads

Energy Science &Engineering, EarlyView.
A hybrid PV–wind grid‐connected microgrid for Mongla Port is optimized using HOMER Pro and validated via DIgSILENT quasi‐dynamic load flow. The system achieves a low cost of energy (0.0341 USD/kWh), 70.9% renewable penetration, improved voltage stability, and significant emission reduction, demonstrating a reliable and cost‐effective solution for ...
Md. Behesty Hasan Sagor, Md Abdus Samad Kamal, Md. Feroz Ali, Md. Mahedi Hasan, Fahad Saleh Al‐Ismail, Md Shafiul Alam, Mohammad Ali   +6 more
wiley   +1 more source

A Novel Control Scheme for Traction Inverters in Electric Vehicles With an Optimal Efficiency Across the Entire Speed Range

IEEE Access
In the context of the electric vehicle (EV) industry, multi-level inverters (MLIs) have garnered increasing attention due to their potential to harness the advantages of higher DC link voltages.
Yousefreza Jafarian Jelodar, Omid Salari, Mohamed Z. Youssef, Javad Ebrahimi, Alireza Bakhshai   +4 more
doaj   +1 more source

Model Predictive Control Method With NP Voltage Balance by Offset Voltage Injection for Three-Phase Three-Level NPC Inverter

IEEE Access, 2020
This paper proposes a predictive control method with offset voltage injection for achieving a neutral point (NP) voltage balance of three-phase three-level neutral point clamped (NPC) inverter, without employing a weighting factor. In order to ensure the
Eun-Su Jun, Minh Hoang Nguyen, Sang-Shin Kwak   +2 more
doaj   +1 more source

Molecular Functions and Drug Prediction of MMP1 and TGFBR2 in Nasopharyngeal Carcinoma

Journal of Clinical Laboratory Analysis, EarlyView.
MMP1 and TGFBR2 were validated by machine learning and external datasets as the candidate genes. Dexamethasone showed strong binding affinity to MMP1 (−7.72 kcal/mol) and TGFBR2 (−7.27 kcal/mol) in docking studies. Knockdown of MMP1 repressed the malignant phenotypes of NPC cells.
Feng Wang, Binbin Ge, Ming Li, Xiaochun Xia, Fuming Zhang, Pengqin Xu   +5 more
wiley   +1 more source

A three level NPC inverter fault detection and identification using voltage vector residual evaluation based on current path tracking method

e-Prime: Advances in Electrical Engineering, Electronics and Energy
This research describes open circuit detection and fault location for active 3-level NPC (neutral point clamped) inverter switches during normal and connected to the neutral point.
Selvakumar P, Muthukumaran G
doaj   +1 more source

Robust vector control of SynRM using a three-level NPC inverter [PDF]

EPJ Web of Conferences
This research aims to evolve a robust vector command of a 3-phase synchronous reluctance motor (SynRM). The conventional 2-level inverter is replaced by a 3-level neutral-point-clamped (NPC) inverter.
Fahassa Chaymae, Abbou Ahmed, Zahraoui Yassine   +2 more
doaj   +1 more source

New estimation methods for diagnostic classification models

British Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract This paper introduces a new class of estimators for cognitive diagnosis models (CDMs) based on the Cressie–Read family of ϕ$$ \phi $$‐divergences. Focusing on the loglinear CDM (LCDM), for which joint maximum likelihood estimation (JMLE) has been shown to be consistent, we propose a joint minimum divergence estimation (JMDE) framework.
Elena Castilla
wiley   +1 more source

ANPC Three-phase Three-level Inverter

Kongzhi Yu Xinxi Jishu, 2012
There are three kinds of multi-level inverters (MLI) suitable for medium and large power application, such as neutral point clamped (NPC) with diodes, flying capacitor (FC) and cascade H bridge (CHB). Among them NPC MLI is used popular nowadays. In order
CHEN Xianming
doaj