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Volume 8 Number 5Pages3292-4646 Part May Year 2015

15 articles in this issue 

YunWon Chung

Lowering the energy required by base stations (BSs) is one of the hot issues nowadays in order to achieve green cellular networks. The energy consumption of femto BSs can be reduced, by turning off the radio interface when there is no mobile station (MS) ... see more

 

Sam Weckx, Reinhilde D'hulst and Johan Driesen

In this paper, a locational marginal pricing algorithm is proposed to control the voltage in unbalanced distribution grids. The increasing amount of photovoltaic (PV) generation installed in the grid may cause the voltage to rise to unacceptable levels du... see more

 

Matthias Rogge, Sebastian Wollny and Dirk Uwe Sauer

The electrification of public transport bus networks can be carried out utilizing different technological solutions, like trolley, battery or fuel cell buses. The purpose of this paper is to analyze how and to what extent existing bus networks can be elec... see more

 

Johan Forslund, Staffan Lundin, Karin Thomas and Mats Leijon

This paper investigates three load control methods for a marine current energy converter using a vertical axis current turbine (VACT) mounted on a permanent magnet synchronous generator (PMSG). The three cases are; a fixed AC load, a fixed pulse wid... see more

 

Xuankai Deng, Yanhua Yu and Yanfang Liu

This study calculated the provincial carbon dioxide (CO2) emissions in China, analyzed the temporal and spatial variations in emissions, and determined the emission intensity from 2005 to 2015. The total emissions control was forecasted in 2015, and the r... see more

 

Hang Zhou, Yuehong Su, Michele Bottarelli, Marco Bortoloni and Shenyi Wu

This study presents a numerical validation of a new approach to model single junction PV cell under non-uniform illumination for low-concentration solar collectors such as compound parabolic concentrators (CPC). The simulation is achieved by finite eleme... see more

 

Pontus Svens, Mårten Behm and Göran Lindbergh

This paper presents results from a field test performed on commercial power-optimized lithium-ion battery cells cycled on three heavy-duty trucks. The goal with this study was to age battery cells in a hybrid electric vehicle (HEV) environment and find s... see more

 

Seok-Kyoon Kim, Hwachang Song and Jang-Ho Lee

This paper proposes a parameter-independent speed controller based on the classical cascade speed control strategy comprising an inner-loop current controller and an outer-loop speed controller for permanent magnet synchronous machines. The contribution o... see more

 

Haitao Liu, Yu Ji, Huaidong Zhuang and Hongbin Wu

Based on the characteristics of electric vehicles (EVs), this paper establishes the load models of EVs under the autonomous charging mode and the coordinated charging and discharging mode. Integrating the EVs into a microgrid system which includes wind tu... see more

 

Wei Deng, Wei Pei, Ziqi Shen, Zhenxing Zhao and Hui Qu

Automatically identifying the new equipment after its integration and adjusting operation strategy to realize “plug and play” functionality are becoming essential for micro-grid operations. In order to improve and perfect the micro-grid “plug and play” fu... see more

 

Antonio Colmenar-Santos, Carlos de Palacio, Lorenzo Alfredo Enríquez-García and África López-Rey

This paper presents a novel methodology for assessing islanding microgrids from the economical and functional perspective, for various stakeholders. The paper proposes the triggers for competitive deployment of microgeneration, storage, microgrid islandin... see more

 

Obi K. Echendu and Imyhamy M. Dharmadasa

A 3-layer graded-bandgap solar cell with glass/FTO/ZnS/CdS/CdTe/Au structure has been fabricated using all-electrodeposited ZnS, CdS and CdTe thin layers. The three semiconductor layers were electrodeposited using a two-electrode system for process simpli... see more

 

Jinlei Sun, Guo Wei, Lei Pei, Rengui Lu, Kai Song, Chao Wu and Chunbo Zhu

The battery internal temperature estimation is important for the thermal safety in applications, because the internal temperature is hard to measure directly. In this work, an online internal temperature estimation method based on a simplified thermal mo... see more

 

Stephen Whaite, Brandon Grainger and Alexis Kwasinski

This review paper discusses power quality considerations for direct current (DC) electric power distribution systems, particularly DC microgrids. First, four selected sample DC architectures are discussed to provide motivation for the consideration of pow... see more

 

Chin-Chi Cheng, Dasheng Lee, Ching Hung Wang, Shu Fen Lin, Hung-Peng Chang and Shang-Te Fang

The energy management service (EMS) has been utilized for saving energy since 1982 by managing the energy usage of site or facilities through the microprocessor, computer, Ethernet, internet, and wireless sensor network. The development and represented f... see more