A strategy is presented to minimize the voltage total harmonic distortion when controlling a multilevel converter to act as a static var compensator. Use of resultant theory has enabled the complete set of solutions to be found for switching a multilevel inverter’s power electronic devices at the fundamental frequency while eliminating the lower order harmonics. A scheme is also presented to re...

A high-speed low-power flash analog-to-digital converter is designed and optimized in a 0.13μm CMOS technology. The ADC consumes 65mW with a supply voltage of 1.2V at 1.2G samples per second. Static DNL and INL are 0.1 LSB and 0.2LSB respectively. The figure of merit shows 1.3pJ per conversion step. The simulation result of the full flash ADC shows improvement in nonlinearity and power dissipat...

This paper deals with the performance, analysis of, operating principles of a new generation of power electronics based equipment called Distribution Static Compensator (D-STATCOM) aimed at enchancing the reliability, and quality of power flow in low voltage distribution network. The model is based on the Voltage Source Converter (VSC) principle. The D-STATCOM injects a current into the system ...

This paper presents experience in performing alternating voltage measurements on distribution transformers using a static frequency converter without particular control scheme. Regarding induced voltage tests, no-load and load measurements, the quality, i.e. the degree of distortion and the symmetrical shape, of the generated test voltage, deviations in measured power and the relation between d...

In this paper a variable speed generating unit is considered, equipped with permanent magnet generator. The system analysis involves appropriate models for the generator, the static converter and the grid. Moreover, an asynchronous generator mounted on the same rotor with dump loads ensures braking actions and management of the active power produced. The modelling of the generator and power ele...

A new AC/AC-M (MLC) family will be introd out due to its modularity a control characteristics. The stringent modularity and versatile converter con concept is well suitable for AC/AC-converters. The basi with the static and dynamic detail on a single-phase AC/A quadrant operation. It is shown that this conv for future AC-fed traction ve well their requirements. Keywords—Emerging to multilevel c...

The paper focuses on the implementation in Field Programmable Gate Arrays (FPGA) of vector control systems of the induction motor supplied from the tandem (hybrid) static-frequency converter. The paper tries to give a synthesis of the tandem vector control structure implementation. The implementation was made using the library elements for rapid prototyping of vector control systems for inducti...

The main purpose of this paper is to describe the four-switch brushless dc (BLDC) motor drive for varoius applications. For effective utilization of the developed system, a novel direct current controlled pulse width modulation scheme is designed and implemented to produce the desired dynamic and static speed–torque characteristics. Also, t h e feasibility of the four-switch converter. Keywords...

Among the factors slowing down the production of the electric vehicles in big series, we mention the problem of weak autonomy directly bound to the weak storage capacity of the batteries. In this context, this paper describes a strategy of power chain vector control reducing the consumption and integrating a system of energy recuperation. Besides, this power chain is conceived by an analytic ap...

In this paper, an operation methodology of a STATCOM (Static Synchronous Compensator) is proposed for reduction in Total Harmonic Distortion (THD) in power systems. For achieving this objective a comparison is made between two different configurations of Statcom.One is made up of two sets of three-level 12-pulse converter considering magnetic saturation and other is made up of two sets of three...