Interline power flow controller (IPFC) is a concept of AC flexible control of the transmission system (FACTS), with the ability to series compensation and power flow management in multi lines of a post power. Out of all FACTS devices interline power flow converter (IPFC) is considered to be the most flexible, powerful and versatile. IPFC […]
This paper proposes a new Space Vector Modulation (SVM) technique to control the grid-side inverter for improving the output power quality of a Doubly-Fed Induction Generator (DFIG) based Wind Energy Conversion System (WECS). A five-level Cascaded H-Bridge Inverter (CHBI) was used to connect the DFIG to the grid. The SVM algorithm enables controlling of the […]
The concentration of data transfer towards the sink in a wireless sensor network causes the nearby nodes to exhaust their batteries faster than other nodes, which leaves the sink trapped and disrupts the data reporting by sensor nodes to each other. To avoid such scenarios, protocols with mobile sinks was proposed. It helped in achieving […]
In this paper, a novel circuit for memristor based Infinite Impulse Response Filter (IIR) filter implementation is presented. In this research for increasing the input voltage range in sampling the analog signal, complementary switches were used instead of single-transistor switches. In addition, to increase the filter accuracy, a delayed circuit with the ability to implement […]
Quantum Cellular Automata (QCA) is one of the main substitutes for CMOS technology and it is used in implementation of different systems. Manifest features including high speed and low power consumption increase the subject of the QCA in research. However, the extensive possibility of occurrence of defects and appropriate physical implementation in the QCA is […]
The weakness of the Direct Vector Control (DVC) is lack of an estimation of the flux amplitude and the rotor position with high accuracy. These quantities are sensitive to parameter variations; it is important to use a robust estimation system for estimating the rotor flux with respect to parametric uncertainties. In this paper the sliding […]
This paper presents a Direct Torque Control (DTC) strategy for the Permanent Magnets Synchronous Machine (PMSM). The principle relies on a Space Vector Modulation (SVM) technique that uses hysteresis comparators for the determination of the voltage module and angle, the proposed control method is simple to implement. It allows reducing the fluctuations level of the […]
Handwritten digit recognition has got a special role in different applications in the field of digital recognition including; handwritten address detection, check, and document. Persian handwritten digits classification has been facing difficulties due to different handwritten styles, inter-class similarities, and intra-class differences. In this paper, a novel method for detecting Persian handwritten digits is presented. […]
Distraction Osteogenesis (DO) is one of novel techniques widely used in bone Reconstruction Applications (RA). Recently, DO method has got an important role in oral and maxillofacial RA; by using DO bone defects and skeletal deformities in different cranio-maxillofacial areas can be reconstructed, with better results and reduced effects in comparison to conventional methods. In […]
With the increasing exchange of information around the world and the use of telecommunication networks such as the Internet, the validity of digital documents have become very important because it may be distroyed or attacked intentionally or unintentionally. Muslims consider Quran as the most important book and so much effort has been made to protect […]
