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