Results 91 to 100 of about 22,065 (311)

Major technical issues with increased PV penetration on the existing electrical grid

, 2012
In the past decade, the installation of rooftop PV (Photovoltaic) systems has substantially increased in many countries. This increase is anticipated due to government incentives like RECs (Renewable Energy Certificates) and feed-in tariff, to ...
Jadeja, Kalpendrasinh
core  

Hard‐Magnetic Soft Millirobots in Underactuated Systems

Advanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang, Zixuan Zhang, Bingyan Li, Junkai Wang, Hongcheng Gu   +4 more
wiley   +1 more source

Enhancing grid-connected inverter performance under non-ideal grid conditions: a multi-functional multiplexing control strategy

Frontiers in Energy Research
Compared to the traditional thermal power generation, new energy sources, such as wind and photovoltaic systems, are more vulnerable to the effects of non-ideal power grids due to their limited capacity.
Xianwen Bao, Lirong Zhang
doaj   +1 more source

A Three-Phase Transformerless T-Type- NPC-MLI for Grid Connected PV Systems with Common-Mode Leakage Current Mitigation

Energies, 2019
DC to AC inverters are the well-known and improved in various kinds photovoltaic (PV) and gird tied systems. However, these inverters are require interfacing transformers to be synchronized with the grid-connected system.
P. Madasamy, V. Suresh Kumar, P. Sanjeevikumar, Jens Bo Holm-Nielsen, Eklas Hosain, C. Bharatiraja   +5 more
doaj   +1 more source

Development of a grid emulator for network integration studies

, 2014
Includes bibliographical references.The economic and environmental side effects of fossil fuels have forced governments and authorities to investigate sustainable solutions. Main interest is focused on environment friendly benefits, provided by renewable
Khan, Akrama
core  

A Superlubricated Magnetically Steerable Microcatheter with Integrated Optical and Fluidic Channels

Advanced Robotics Research, EarlyView.
A magnetically steerable microcatheter with integrated optical and fluidic channels is developed for multifunctional navigation in tortuous anatomical environments. A surface‐grafted hydrogel coating enables low‐friction actuation. The device demonstrates stable light and fluid delivery during magnetic manipulation, offering a compact platform for ...
Yuntian Du, Ruokun He, Luqi Li, Hesheng Wang, Zhuo‐Chen Ma, Bing Han   +5 more
wiley   +1 more source

Study on EMC of High Power Photovoltaic Grid-connected Inverter

Kongzhi Yu Xinxi Jishu, 2014
It mainly introduced the topology of photovoltaic grid-connected inverter, analyzed the electromagnetic problems of high power photovoltaic grid-connected inverter, and proposed some solutions.
WU Hengliang, JIAN Fang, TANG Haiyan
doaj  

Parameter identification of PLL for grid‐connected inverter based on parameter sensitivity analysis

IET Power Electronics
Under the condition of weak grid, the phase‐locked loop (PLL) is one of the main reasons for the sub‐synchronous oscillation of the grid‐connected inverter.
Fei Li, Qiang Feng, Ping Chen, Yang Liu, Shuiliang Cai, Hanyu Wang, Xing Zhang   +6 more
doaj   +1 more source

Grid-Side Current Improvement With Direct Digital Control and Capacitor Voltage Feedforward to Mitigate Distorted Grid Currents for 3Φ3W LCL Grid-Connected Inverter Under Distorted Grid Voltages

IEEE Open Journal of Power Electronics
A three-phase three-wire LCL grid-connected inverter is usually used as an interface between renewable-energy sources and grid. However, grid voltage is always distorted and results in grid-current distortion when there is no control at the filter ...
Tsai-Fu Wu, Ching-Chih Chan, Yun-Hsiang Chang, Jui-Yang Chiu, Chien-Chih Hung, Tzu-Hsien Chuang   +5 more
doaj   +1 more source

A Control Strategy of a Single-phase H6-type Grid-connected Inverter with Low Harmonic Current

MATEC Web of Conferences, 2018
In order to reduce the total harmonic distortion (THD) of the grid-connected current caused by the high-frequency switching of the inverter, this paper combines the high efficiency single-phase H6-type inverter with LCL filter.
Chunxu Lin, Chunhua Zhou, Wei Li, Rui Chen   +3 more
doaj   +1 more source