نتایج جستجو برای: pq inverter

تعداد نتایج: 14354  

Journal: :مهندسی برق و الکترونیک ایران 0
علی اصغر خدادوست آرانی a. a. khodadoost arani گئورگ قره پتیان g. b. gharehpetian بهروز ذاکر b. zaker

modeling and simulation of flywheel energy storage system as v/f reference in islanded microgrid

Journal: :Journal of Electrical Engineering 2017

2016
Anupama Kulkarni R. S. Desai

This paper describes role of UPQC as applied to a 3P4W system to improve PQ. The Forth wire of 3P4W system is developed by means of neutral of series transformer. Neutral current which flows through neutral terminal of transformer is removed with the help of 4 leg voltage source inverter (VSI) topology for shunt part. The series transformer neutral will have 0 potential in all conditions of ope...

2016
S. Arulkumar

This paper deals with the power quality (PQ) improvement by using a transformer less Hybrid Active Power Filter (HAPF) based on a six switch two leg inverter with battery and solar system through boost converter which increases the reliability of power supply by reducing the Total Harmonic Distortion (THD) and increase the voltage level. The control methods of instantaneous reactive power theor...

2014
M. T. LAMCHICH M. RAOUFI

This paper deals with the use of shunt active filter to compensate current perturbations produced by non linear loads. To perform the identification of disturbing currents, the so called Instantaneous Active and Reactive Power Method (pq) is used. A Phase Locked Loop (PLL) circuit, locked to the fundamental frequency of the system voltage, is also introduced for eventual mains voltages perturba...

2016
Prasanna Moorthy

This paper proposes the Modified Switched Inductor Quasi Z Source Inverter (MSL-QZSI) for extracting maximum solar power generation. The Z source inverter uses LC impedance network to couple the main converter circuit to the power source, which provides the boosting of input voltage. It is not possible in traditional voltage-source inverter (VSI) and current-source inverter (CSI). The proposed ...

2015
S. Iyappan

This paper presents a performance of the canonical switching cell (CSC) converter fed brushless DC (BLDC) motor drive for power quality (PQ) improvement. The use of CSC not only controlled the DC link voltage but also make the inverter to operate at low frequency so that switching losses are minimized. Moreover the use of front end CSC improves the power factor at AC mains. The system needs onl...

Because of installation for local consumers and since it is free of all contaminations, connecting photovoltaic cells to the grid via single-phase inverter is significantly on the rise. In this paper, a new simple current control is proposed for a single-phase grid-connected voltage source inverter. Using the PQ theory and modelling a single-phase system as an unbalanced three-phase system, a m...

2013
Alex L. Kyaruzi

Microgrids are increasingly being considered to provide electricity for the expanding energy demand in the grid distribution network and grid isolated areas. However, the technical challenges associated with the operation and controls are immense. Management of dynamic power balances, power flow, and network voltage profiles imposes unique challenges in the context of microgrids. Stability of t...

2013
Ali Mehri Daryoosh Nazarpour

This paper presents detailed modeling and simulation of a compensator for Load balancing and harmonics Compensation based on a five-level cascaded H-bridge multilevel voltage source inverter. This type of compensator, which is installed in parallel with the load, is usually referred to as the shunt active power filters (APF). Nowadays use of high voltage non-linear loads are widely used in indu...

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