Articles

A new single switch high static gain non-isolated dc-dc converter is presented in this paper. The proposed converter topology is suitable for renewable energy based applications having low input dc voltage. The proposed converter provides high voltage conversion without using transformer and coupled inductor. The semiconductor power devices used in …

Practical Wellbore Hydraulics and Hole Cleaning presents a single resource with explanations. equations and descriptions that are important for wellbore hydraulics. including hole cleaning. Involving many moving factors and complex issues. this book provides a systematic and practical summary of solutions. thus helping engineers understand calculations. case studies and guidelines …

Voluminous amounts of data have been produced. since the past decade as the miniaturization of Internet of things (IoT) devices increases. However. such data are not useful without analytic power. Numerous big data. IoT. and analytics solutions have enabled people to obtain valuable insight into large data generated by IoT …

This paper has presented a comprehensive analytical method for designing LCL filter of a three-phase power factor correction rectifier (PFC). The method is explained by the converter current and the voltage behavior. The converter current ripple determines all the filter parameters and defines a suitable margin for them. A general …

The transformer percent differential protection is not reliable enough during external fault. if the differential restraint characteristic is the only one criteria providing security. The saturation of CTs during external faults could lead to cases of dangerously high differential restraint ratios crossing the characteristic into the operating region and causing …

To realize the wideband DPA above 3GHz. the frequency dependency compensating circuit and the λ ۴ inverter incorporating parasitic elements inside package were proposed. The feasibility of the approach was verified by measurement results. and it achieved 45.9- 50.2 % drain efficiency with -50 dBc ACLR over the 3.0- 3.6 …

In this paper. a novel MS-LMFM motor has been proposed and several varied geometric parameters have been optimized for maximum thrust force. Furthermore. a comparison between the proposed and existing motor has been carried out under fixed copper loss by FE method. Compared with the existing motor. it is confirmed …

The feasibility and performance of a battery charger for PHEV application using back to back (B2B) converter in a utility connected micro-grid has been investigated in this paper. A structure has been proposed involving three parts: an AC micro-grid. in which the load is fed from the DG source. a …

Motor drives is a widely used technology. offering many advantages. such as exceptional speed control and flexibility. Improvement of reliability and efficiency has become a great research interest. Toward this direction and considering the major recent developments in supercapacitor technology. the use of bidirectional energy recovery converters has been introduced …

The following is an example of one type of article we’d like to showcase. It’s a report based on a two-hour panel discussion on IoT in healthcare. held at the NIST offices in Gaithersburg. Maryland on 30 August 2017. The panel was part of a one-day workshop on IoT sensors …