Results 221 to 230 of about 31,389 (243)

Modeling of three-phase controlled rectifier using a DQ method

2010 International Conference on Advances in Energy Engineering, 2010
Power converter models are normally time-varying because of their switching behaviors. This paper presents the DQ modeling method to eliminate the switching action to achieve time-invariant model. The power system studied is the AC distribution system. The small-signal model of the power system is obtained by using a linearization technique.
K. Chaijarurnudomrung, K-N. Areerak, K-L. Areerak   +2 more
openaire   +1 more source

DQ Transformation Based Control of Single-Phase Grid-Tied Inverter

2021 31st Australasian Universities Power Engineering Conference (AUPEC), 2021
Direct quadrature (DQ) synchronous reference frame transformation-based current controllers are utilized due to their superior performance, while they drive on dc quantities, attaining zero steady-state error, and are highly compatible for single-phase grid-tied inverters.
Muhammad Waqas, Toqeer Ahmed, Rajvikram Madurai Elavarasan, Asad Waqar, Kenneth Leong, Rishi Pugazhendhi, Narottam Das, Muhammad Waqas Jeelani   +7 more
openaire   +1 more source

A control scheme in the dq reference frame for Hexverter-based systems

2019 North American Power Symposium (NAPS), 2019
A control approach developed in the α β0 reference frame must be able to track control signals which are sinusoidal functions of time. Therefore, designing these compensators is not a straightforward task. Alternatively, a control scheme elaborated in dq reference frame offers the possibility to track dc control signals.
Hector R. Robles-Campos, Fernando Mancilla-David   +1 more
openaire   +1 more source

Circulating current controller in dq reference frame for MMC based HVDC system

IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society, 2016
This paper presents a phase shifted triangular carrier pulse width modulation technique for control of modular multilevel converter (MMC) based HVDC system. This switching modulation technique has reduced average switching frequency when compared to conventional method where switching state changes in each sampling period or control cycle.
Nagesh Geddada, Abhisek Ukil, Yew Ming Yeap   +2 more
openaire   +1 more source

DQ controller for a grid-tied single-phase inverter with harmonics compensation

2020 IEEE ANDESCON, 2020
This article presents a DQ controller for regulating the output current of a grid-tied single-phase inverter. The controller is composed of several DQ controllers that regulate the fundamental component and the most relevant harmonics of the output current.
Miguel Vivert, Eliana Ormeno-Mejia, Jhonny Barzola   +2 more
openaire   +1 more source

A Novel Hysteresis Current Control Scheme in Synchronous dq-Frame for PMSM

2019 22nd International Conference on Electrical Machines and Systems (ICEMS), 2019
This paper proposes a novel hysteresis current control (HCC) scheme in synchronous dq-frame for permanent magnet synchronous motor (PMSM). The space vector tables are conceived directly based on a first order approximation of the voltage equation in space format. Constant sampling and space vector pulse width modulation (SVPWM) technique are applied to
Lu Ren, En Xie, Yiyun Zhao, Zhi Zhang
openaire   +1 more source

Control Loop Study of Induction Motor Drives Using DQ Model

IEEE Transactions on Industrial Electronics and Control Instrumentation, 1979
This paper presents a systematic study of the various control loops in a current source inverter-induction motor drive and their effects on the dynamic response and stability of the system. A dq model is developed which incorporated the induction motor and the inverter power supply with current feedback. The model is first used to generate steady-state
Murray L. MacDonald, Paresh C. Sen
openaire   +1 more source

Synchronization and dq current control of grid-connected voltage source inverter

17th IEEE International Multi Topic Conference 2014, 2014
The increased trend in using the renewable energy instead of fossil fuel based generation due to its low environmental impact and to facilitate the increased consumption has led to extensive use of distributed generation. The use of power electronics with renewable energy offers wide advantages including greater controllability of generated power and ...
Wajiha Zahoor, Sajjad Haider Zaidi
openaire   +1 more source

A DQ Synchronous Reference Frame Current Control for Single-Phase Converters

IEEE 36th Conference on Power Electronics Specialists, 2005., 2006
This paper presents a current control using the dq synchronous reference frame for single-phase converters. This control method consists in transforming an orthogonal pair composed by the actual single-phase input current and a fictitious current, from a stationary to a rotating frame.
U.A. Miranda, L.G.B. Rolim, M. Aredes
openaire   +1 more source

A dq-axis framework for electrostatic synchronous machines and charge oriented control

2017 IEEE Energy Conversion Congress and Exposition (ECCE), 2017
Recently, innovations such as advanced dielectric liquids and additive manufacturing have enabled electrostatic machines at the fractional horsepower scale that have competitive performance with their conventional electromagnetic counterparts. The emergence highlights a need for circuit modeling that guides machine design and drive controls, rooted in ...
Baoyun Ge, Aditya N. Ghule, Daniel C. Ludois   +2 more
openaire   +1 more source