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Estimation of Lost Voltage Measurements in Distribution Networks
(2014-09-08)
This paper presents an algorithm to estimate lost bus voltage measurements in balanced distribution networks regulated by centralized control schemes. The objective is to feed controllers with reliable estimations of lost ...
Development of a DC-DC converter for DC bus voltage control of series connected device
(2009-12-01)
The purpose of this work is to study voltage control and energy balance of a split DC bus topology within a power electronics equipment connected to the AC mains, such as UPS systems, wind power generators, active filters ...
A novel Capacitor Voltage Balancing strategy for Modular Multilevel Converters
(IEEE, 2018)
This paper presents a simple and innovative Capacitor Voltage Balancing (CVB) strategy for Modular Multilevel Converters (MMC) based on full H-bridge cell topologies. The method computes specific modulation indexes for ...
Analise e controle de aerogeradores com conversor pleno durante afundamentos de tensão
(Universidade Federal de Santa MariaBREngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia Elétrica, 2012-09-28)
This thesis addresses the main issues regarding the operation of full power converters
wind turbines connected to the grid under balanced and unbalanced voltage sags.
In the past, the grid codes allowed wind turbines to ...
An integrated converter and machine control system for MMC-based high-power drives
(IEEE, 2019)
The modular multilevel converter (MMC) is a promising topology for high-power drive applications. However, large voltage fluctuations can be produced in the floating capacitors when the machine operates with high stator ...
An Enhanced dq-Based Vector Control System for Modular Multilevel Converters Feeding Variable-Speed Drives
(IEEE, 2017)
Modular multilevel converters (M2C) are considered an attractive solution for high power drive applications. However, energy balancing within the converter is complex to achieve, particularly when the machine is operating ...
Sistema de controle para conversores modulares multiníveis utilizados em conexões HVDC de parques eólicos offshore
(Universidade Federal de Santa MariaBrasilEngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia ElétricaCentro de Tecnologia, 2018-02-27)
This work presents a brief history of the wind generation system in general and
the detailed history of the offshore wind generation system. Current data on installed
capacity, power of used wind turbines and distance ...
Optimal Volt-VAr Control Operation for Finergy Cost Reduction in Distribution Systems Considering a Voltage Dependent Load Model
(Ieee, 2016-01-01)
In this paper, a new mixed integer linear programming formulation is proposed to optimally control the Volt-VAr control devices installed in a balanced electrical distribution system (EDS), taking into account the presence ...
Optimal volt-VAr control operation for energy cost reduction in distribution systems considering a voltage dependent load model
(2017-01-04)
In this paper, a new mixed integer linear programming formulation is proposed to optimally control the Volt-VAr control devices installed in a balanced electrical distribution system (EDS), taking into account the presence ...