Results 91 to 100 of about 16,643 (185)

Adaptive-Gain Second-Order Sliding Mode Direct Power Control for Wind-Turbine-Driven DFIG under Balanced and Unbalanced Grid Voltage

open access: yesEnergies, 2019
In a wind turbine system, a doubly-fed induction generator (DFIG), with nonlinear and high-dimensional dynamics, is generally subjected to unbalanced grid voltage and unknown uncertainty.
Yaozhen Han, Ronglin Ma
doaj   +1 more source

Integral Plus Resonant Sliding Mode Direct Power Control for VSC-HVDC Systems under Unbalanced Grid Voltage Conditions

open access: yesEnergies, 2017
An integral plus resonant sliding mode direct power control (IRSMC DPC) strategy for voltage source converter high voltage direct current (VSC-HVDC) systems under unbalanced grid voltage conditions is proposed in this paper.
Weipeng Yang   +5 more
doaj   +1 more source

Application of Sliding Mode Variable Structure in Direct Power Control for PWM Rectifier

open access: yesKongzhi Yu Xinxi Jishu, 2015
Based on the instantaneous power theory, it deduced mathematical model of active and reactive power for three-phase PWM rectifier in two-phase stationary coordinate system, and proposed sliding mode variable structure control (SMVSC) strategy to achieve ...
XIE Dan, XIAO Shenping, CHEN Jielian
doaj  

A Comparative Study of Direct Power Control Strategies for STATCOM Using Three-Level and Five-Level Diode-Clamped Inverters

open access: yesEnergies
For power electronic interfaces, Direct Power Control (DPC) has emerged as a leading control technique, especially in applications such as synchronous motors, induction motors, and other electric drives; renewable energy sources (such as photovoltaic ...
Diyaa Mustaf Mohammed   +4 more
doaj   +1 more source

Improved model predictive direct power control of grid side converter in weak grid using kalman filter and DSOGI

open access: yesChinese Journal of Electrical Engineering, 2019
When grid side converter (GSC) is connected to weak grid, the small signal instability can happen due to terminal characteristics of the GSC that are incompatible with the grid impedance.
Liang Chen, Heng Nian, Yunyang Xu
doaj   +1 more source

Two different controllers-based DPC of the doubly-fed induction generator with real-time implementation on dSPACE 1104 controller board

open access: yesMeasurement + Control
The direct power command (DPC) of the doubly-fed induction generators (DFIG) has garnered increasing attention due to its simplicity, ease of implementation, and fast dynamic response that distinguished it from other controls.
Mourad Yessef   +7 more
doaj   +1 more source

Experimental Validation of Feedback PI Controllers for Multi-Rotor Wind Energy Conversion Systems

open access: yesIEEE Access
This new paper describes an experimental investigation of a proportional-integral (PI) controller that uses feedback control to regulate an energy system that uses multi-rotor wind energy systems.
Mourad Yessef   +6 more
doaj   +1 more source

A Model-Based Direct Power Control for Three-Phase Power Converters [PDF]

open access: yes, 2008
Direct Power Control (DPC) technique has been widely used as control strategy for three-phase power rectifiers due to its simplicity and good performance.
Carrasco Solís, Juan Manuel   +4 more
core  

A New DPC-SVM for Matrix Converter Used in Wind Energy Conversion System Based on Multiphase Permanent Magnet Synchronous Generator

open access: yesIranian Journal of Electrical and Electronic Engineering, 2019
This paper proposes a novel wind energy conversion system based on a Five-phase Permanent Magnetic Synchronous Generator (5-PMSG) and a Five to three Matrix Converter (5-3MC).
E. Bounadja, Z. Boudjema, A. Djahbar
doaj  

Grass root democracy and empowerment of people:evaluation of Panchayati Raj in India [PDF]

open access: yes
As Gandhi often pointed out, India lives in villages and unless village life can be revitalized the nation as a whole can hardly come alive. When India became independent in 1947, perhaps one-third of the villages of India had traditional Panchayats and ...
Menon, Sudha Venu
core   +1 more source

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