− One of the recent approaches to test A/D converter performance is the so-called Servo-Loop Method. This method is aimed at the non-linearity extraction of static ADC transfer curve. In this paper, we prove an advanced Servo-Loop version focusing on behavioral and transistorlevel example of the Residual Signed Digit (RSD) cyclic A/D converter design. The background of the considered Servo-Loop...

for beneficiation of converter slag, the role of surface phenomena on slag composition was studied. this work includes some experimental data, which were measured for basic oxygen steel (bos) slag in isfahan steel plant. all data were collected on site in the plant. the results support the idea that surface activity plays a major role in converter slag formation. it was also a new finding that ...

This paper presents a new multilevel one-cycle control (OCC) technique for five-level diode-clamped converter (DCMC)-based static VAR compensator (STATCOM). The OCC algorithm in combination with multi-carrier level-shifted PWM is used the proposed DCMC-based STATCOM. automatic dc link voltage balance simply realized by four compensators presented as part of controller. In this principle two-lev...

Constant speed pumped storage unit is widely used, however it cannot adjust the input power when working in electric mode, and work best efficiency head of reservoir changes greatly. Therefore, necessary to study develop variable systems. This paper has studied on operation static frequency converter for units. Besides, development status system at home abroad investigated. Furthermore, classif...

This study is carried out to understand the effects of Static frequency converter (SFC) on large machine. SFC has a feature of four quadrant operations. By virtue of this it can be implemented to run a synchronous machine either as a motor or alternator. This dual mode operation helps a single machine to start & run as a motor and then it can be converted as an alternator whenever required. One...

Voltage control and fast reactive power compensation are two main application area of Static Synchronous Compensator (STATCOM), which is a shunt connected voltage source converter (VSC) based FACTs controller using power semiconductor devices (particularly IGBT, GTO etc.).However, the total Statcom circuitry has complex and coupled system dynamics which require advanced controllers to achieve w...

Purpose: To calculate heat losses in the combined filter-compensating unit and to assess possibility of using air cooling. Methods: Mathematical computer modeling are used with regard main parameters converter. Results: The paper presents schemes differences reactive power compensation installations, nowadays on electrified sections railroads. calculation thermal installation Static Var Generat...