Results 31 to 40 of about 492 (259)

Dual-Source Bidirectional Quasi-Z-Source Inverter Development for Off-Road Electric Vehicles

World Electric Vehicle Journal, 2022
In this paper, a battery pack and a supercapacitor bank hybrid energy storage system (HESS) with a new control configuration is proposed for electric vehicles (EVs). A bidirectional quasi-Z-source inverter (Bq-ZSI) and a bidirectional DC-DC converter are
Daouda Mande, João Pedro F. Trovão, Minh C. Ta, Thang Van Do   +3 more
doaj   +1 more source

Quasi‐Z based adaptive sliding mode control for three‐phase photovoltaic grid‐connected system

IET Power Electronics, 2023
Considering the non‐linear characteristics of both the input and output of photovoltaic (PV) modules and quasi‐Z‐source inverters, as well as the unpredictable natural factors such as large disturbances caused by changes in illumination and temperature ...
Yan Chen, Junli Meng, Yuanyuan Yan, Lin Zhong   +3 more
doaj   +1 more source

Design and Control of a Quasi-Z Source Multilevel Inverter Using a New Reaching Law-Based Sliding Mode Control

Energies, 2022
The rapid growth in renewable energies has given rise to their integration into the grid system. These renewable and clean energy sources are dependent on external conditions such as wind speed, solar irradiation, and temperature. For a stable connection
Muhammad Awais Rafiq, Abasin Ulasyar, Waqar Uddin, Haris Sheh Zad, Abraiz Khattak, Kamran Zeb   +5 more
doaj   +1 more source

Quasi Z-source NPC inverter for PV application [PDF]

2017 IEEE PES PowerAfrica, 2017
تعرض هذه الورقة مبادئ التشغيل واستراتيجية تعديل متجهات الفضاء المعدلة لمحول ثلاثي الأطوار شبه محايد المصدر من نقطة Z مثبت للتطبيقات الشمسية الكهروضوئية. تجمع هذه الطوبولوجيا بين مزايا المحولات ذات النقطة المحايدة المثبتة وشبه Z. وتشمل هذه المزايا تحويل الطاقة المعزز أحادي المرحلة، وتيار الإدخال المستمر، وإجهاد الجهد المنخفض للمفاتيح.
Francis Boafo Effah, Patrick Wheeler, Alan J. Watson, Jon Clare   +3 more
openaire   +1 more source

Embedded Ferroelectric Nanoclusters Can Drive Polarization Reversal in a Non‐Ferroelectric Polar Film via the Proximity Effect

Advanced Functional Materials, EarlyView.
Ferroelectric nanoclusters create local internal fields in a normally non‐switchable polar film because of polarization mismatch at their interfaces. That field opposes polarization in the regions with larger polarization and reinforces polarization in the regions with smaller polarization.
Anna N. Morozovska, Eugene A. Eliseev, Sergei V. Kalinin, Long‐Qing Chen, Dean R. Evans, Venkatraman Gopalan   +5 more
wiley   +1 more source

CCM and DCM analysis of quasi-z-source inverter [PDF]

2017 IEEE Conference on Energy Conversion (CENCON), 2017
This paper presents an analysis of a quasi-Z-source inverter (qZSI) operating in continuous conduction mode (CCM) and discontinuous conduction mode (DCM). The boundary between CCM and DCM is discovered and technique to avoid qZSI being operated in DCM is also discovered.
Jonah Ong Soon Xuan, Kentrick Yong Sut Khan, Law Kah Haw, Wendy Ng Pei Qin, Mohamed Dahidah   +4 more
openaire   +1 more source

Catalytically Enhanced Near Room‐Temperature Hydrogen Sensing Using Pd‐ZnO Colloidal Crystals

Advanced Functional Materials, EarlyView.
Pd‐decorated ZnO colloidal crystal monolayers demonstrate excellent performance across a wide hydrogen concentration range at 33°C, with high selectivity and reproducible device fabrication. The sensors show strong responses even at low‐ppm H2 concentrations and an ultra‐low detection limit of 82 ppb, indicating their suitability for diverse hydrogen ...
Hamidah Alluhaybi, Samuel J. Ippolito, Chung Kim Nguyen, Durairaj Mahendiran, Michelle J. S. Spencer, Edwin L. H. Mayes, Billy James Murdoch, Jason Choi, Shamali De Silva, James Tardio, Adrian Trinchi, Ahmad E. Kandjani, Mohammad Al Kobaisi, Ylias Sabri   +13 more
wiley   +1 more source

Improved vector selection model predictive control strategy for quasi‐Z‐source inverter virtual synchronous generator grid‐connected system

The Journal of Engineering
Conventional inverter control methods reduce the grid inertia and are susceptible to parameter variations, resulting in a gradual weakening of grid stability.
Zhun Cheng, Yihan Liu, Bing Luo, Yang Zhang   +3 more
doaj   +1 more source

Noise‐Limited Bit Precision in Ferroelectric Synaptic Transistors for High‐Resolution Neuromorphic Computing

Advanced Functional Materials, EarlyView.
Low‐frequency noise spectroscopy defines the resolvable conductance states of synaptic FeFETs by coupling read‐current fluctuation with usable dynamic range. The resulting noise‐limited bit precision establishes a universal, device‐agnostic reliability metric beyond the memory window, enabling quantitative benchmarking and rational design of high ...
Jaehong Park, Yeonseop Shin, Changhyeon Han, Sangwoo Kim, Eunchan Park, Youngchan Cho, Jaehong Min, Hyunjun Ahn, Jaekyoung Park, Cheol‐Woong Yang, Jangsaeng Kim, Daewoong Kwon, Wonjun Shin   +12 more
wiley   +1 more source

Maximum Boost Control Method for Single-Phase Quasi-Switched-Boost and Quasi-Z-Source Inverters

Energies, 2017
The maximum boost control method for a single-phase switched-boost inverter (SBI) and single-phase Z-source inverter (ZSI) is proposed in this paper. In the proposed method, the low frequency voltage is added to the constant voltage for generating the ...
Minh-Khai Nguyen, Youn-Ok Choi
doaj   +1 more source