Results 11 to 20 of about 19,817 (226)
Feasibility Analysis for Power Transformer Expectancy and Loss of Life “A practical Case Study in Egyptian Electricity Transmission Company” [PDF]
Port Said Engineering Research Journal, 2014 Quality of power supply is now a major worldwide important issue making harmonic analysis an essential element in power system planning and design. Because of the power transformers are major components in power systems; this paper studies the impact of ...
Ibrahim Henidaq +3 more
doaj +1 more source
Harmonics Analysis of Input Current of 3-Phase PWM Rectifier
Andalas Journal of Electrical and Electronic Engineering Technology, 2021 Rectifier is a non-linier load that causes harmonic distortion in the power system. Pulse-width modulation (PWM) method is an effective method in pressing the magnitude of harmonics in a rectifier application, it provides an almost sinusoidal input ...
Alfin Prima Adjie, Muhammad Imran Hamid
doaj +1 more source
IET Power Electronics, EarlyView., 2022 Abstract In this paper, a reduced switch count single‐phase hybrid multilevel inverter (MLI) is presented. Level generation unit (LGU) and polarity changing unit (PCU) are the two parts of the presented topology which are connected in series. Other advantages of the proposed topology include the reduced switch count, higher level generation with ...
Mohammad Wasiq +6 more
wiley +1 more source
Exploring the Optimizations for Main Harmonic Filtering for Power Systems [PDF]
MATEC Web of Conferences, 2023 As the global demand for sustainable and environmentally friendly energy supply continues to increase, photovoltaic technology, as an important form of new energy, has received extensive attention. Photovoltaic grid-connected system is currently the most
Zhao Yushuo
doaj +1 more source
IET Power Electronics, EarlyView., 2022 This paper introduces the research on the inductance‐capacitor‐capacitor‐inductance grid‐connected inverter using active disturbance rejection and grid voltage feedforward coordinated control technology. The pade approximation is performed on the inductance‐capacitor‐capacitor‐inductance filter to derive the first‐order discretization mathematical ...
Guang‐Xin Zhong +4 more
wiley +1 more source
IET Power Electronics, EarlyView., 2022 New modified carrier‐based level shifted pulse width modulation approaches for single‐phase trinary dc source fed cascaded H‐bridge inverters are proposed in this article. In order to suppress the lower order harmonics, the carrier frequency is often tuned higher. However, switching and electromagnetic interference problems have a significant influence
Arun Vijayakumar +4 more
wiley +1 more source
IET Power Electronics, EarlyView., 2023 This study introduces a new modular multilevel inverter that can produce five levels of positive voltage using only six power switches and five DC voltage sources. The basic unit is composed of a single‐ and double‐source (SDS) unit. SDS reduces the number of power electronic components, such as the insulated gate bipolar transistors, freewheeling ...
Naser Fakhri +4 more
wiley +1 more source
IET Power Electronics, EarlyView., 2023 Here, multiport modular multilevel converter (MPMMC) topologies will be reviewed and analysed from a control standpoint. It does this through identifying feasible MPMMC topologies, developing review criteria and then reviewing the feasible topologies.
Stephan Adams +3 more
wiley +1 more source
A nine‐level T‐type inverter (9L‐TTI) with voltage boost capability
IET Power Electronics, EarlyView., 2023 A new multi‐level inverter topology with boosting feature considering the reduced switch count has been presented, compared and validated. Abstract This paper introduces a 9L T‐type boost inverter (9L‐TTI) based multilevel topology, which generates a nine‐level output voltage in the boost mode.
Zarren Firdous +5 more
wiley +1 more source
IET Power Electronics, EarlyView., 2023 This article presents a dual‐source novel nine‐level inverter (DSN2LI) featuring minimal devices. Utilizing eight switches, which include 2 bidirectional switching devices and 2 uneven dc links, the proposed DSN2LI generates nine levels. The DSN2LI employs the utilization of trinary geometric DC links.
Arun Vijayakumar +3 more
wiley +1 more source