Recent Advances in Electrical & Electronic Engineering - Volume 11, Issue 1, 2018

Background: Existing power systems normally operate at heavily loaded conditions and often face a surge in load demand. In spite of the implementation of the state of the art preventive measures, blackout prompted interruption in the energy supply is an enduring issue. Typically, the voltage collapse is evaded by severing a critically loaded line, which has severe repercussions including oscillatory transients and stabilit Read More

Background: In this paper, fuzzy pole placement control approach is proposed to control the speed of D.C motor. In this method, state feedback gain is tuned by fuzzy logic. Methods: In conventional pole placement control, constant gain is considered to insert the poles of system in the desired place. Therefore, unnecessary effort is appliedto the system, and the system implementation becomes costly. In contrast, in fuz Read More

Background: In this study, a new model-based fault detection and isolation (FDI) strategy of IGBTs open circuit faults detection and diagnosis in voltage source inverter (VSI) is proposed for space vector modulation direct torque control (SVM DTC) permanent magnet synchronous motors drives. Methods: The method is based on the bridge leg pole voltage, when with an additional simple circuit, the diagnostic method dete Read More

Background: Due to the influence of core breaking, the traditional iron core linear motor has the end-effect of lateral and vertical side, which makes the output of the thrust line fluctuating greatly. The ironless permanent magnet synchronous linear motor has the advantages of zero slot effect, simple structure and flexible control. Methods: The study was based on the analysis of air gap magnetic field of ironless permane Read More

Background: Pedestrians are the major road users in transportation system. They are more vulnerable than other road users when traffic accidents occurr, which has attracted much concerns from researchers around the world by developing corresponding countermeasures. Pedestrians are not easy to be tracked accurately because of the changes in illumination conditions and the occlusion of human body using traditional tracki Read More

Background: This work describes the methodology and the basic procedure developed by the patent entitled DC-DC Converter with Bipolar Output and its Use for Connection of a Distributed Generation System to a Bipolar DC Grid. Methods: The invention relates to a DC-DC converter capable of generating bipolar voltage with a suitable novel topology for distributed generation connection to a DC bipolar grid. The proposed topolo Read More

Background: Many multiprocessor systems have interconnection networks as underlying topologies and an interconnection network is usually represented by a graph where nodes represent processors and links represent communication links between processors. Methods: The diagnosability of the system plays an important role in measuring the fault tolerance of the interconnection network. The n -alternating Read More

Background: The increasing concern of global climate change, the promotion of renewable energy sources, primarily wind generation, reduces the power generation from conventional plants that lead to the reduction in pollutant emission. The exploitation of wind power generation is rising throughout the world. The objective of Unit Commitment (UC) is to identify the optimal generation scheme of the committed units such t Read More

Background: Single-channel observed signal analysis based on independent component analysis (ICA) model belongs to the extremely underdetermined blind source separation (BBS) problem. Method: In order to extract the fault feature hidden in the single-channel measured signal from multi-stage gearbox, a joint approach of fault feature extraction based on ensemble empirical mode decomposition (EEMD) and co Read More

Background: This paper presents the design and implementation of an ultra-wideband transition from double-sided micro-strip to parallel-strip line which is usually used as balanced antenna feed. Methods: This transmission is composed of a near-optimum taper of metal on top layer and exponential taper of ground on bottom layer. The transmissions were simulated and optimized by CST Microwave Studio and then they a Read More

Background: In view of the lack of centralized control of traditional home appliances, this paper implements an intelligent gateway based on the Linux embedded operating system as the software platform and the ARM9 processor S3C2440 as the hardware development platform to solve this problem. Methods: The intelligent gateway is equipped with Wi-Fi, CC1101, Ethernet card and other functional modules, and based on th Read More