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 t...

Abstract—this paper expounds a simulation model of a self-excited asynchronous generator (SEASG) feeding RL load in conjunction with an AC/DC/AC converter fed RLC series circuit connected at the point of common coupling (PCC).Simulation model of the proposed system have been developed by using Mat lab/Simulink. The result shows that the effect of RLC series circuit when operated at variable fre...

Controlling of DC-DC converter is vital task in power conversion. DC-DC converters are used in many applications like solar charger, computer power supplies, switching mode regulators, aircrafts etc. Focus of this paper is to model a controlling system for buck converter which controls output of buck converter constant instead of changing load and input supply to buck converter. Controlling met...

An Alternate Arm Modular Multilevel Converter (AAMMC) is the recently introduced power electronics converter topology suitable for High Voltage DC Transmission (HVDC) system applications. This paper focuses on the operating principle of an Alternate Arm Modular Multilevel Converter. At the beginning the advantages of multilevel converter, basic schematic of converter topology, and its operation...

This paper describes a new design for direct sliding mode method with a high switching frequency using the PD-PI type sliding surface applied to a negative output Luo converter worked in continuous current mode for applications required constant power source such as aerospace applications, medical equipment and etc. Because of the output power and line changes, the converter model is also nonli...

Impedance-based stability analysis is an effective method for addressing a new type of SSO accidents that have occurred in recent years, especially those caused by the control interaction between DFIG and power grid. However, existing impedance modeling DFIGs mostly focused on single converter, such as GSC or RSC, influence RSC GSC, well frequency coupling effect inside converter are usually ov...

This paper proposes an isolated buck-boost topology and control strategy for the photovoltaic (PV) medium-voltage DC (MVDC) converter with low-voltage ride through (LVRT) capability. The proposed operates on either boost or buck mode by only controlling active semiconductors side. Based this topology, (MV) dc–dc module is able to be developed reduce number of modules increase power density in c...

This paper introduces a bi-directional DC-DC converter with adaptive fuzzy logic controller (AFLC). Bi-directional power flow is obtained by the same power components and provides a simple, efficient, and galvanically isolated converter. In the presence of DC mains, the converter operates as buck converter, powers the down stream converter, and also charges the battery. When the DC mains fails,...

The fly back converter has been widely used for multi outputs due to the simple structure and low cost in low-power applications. This paper presents a new multi output converter. It consists of a half-bridge inverter with boost converter in primary side and a fly back rectifier that is integrated with an auxiliary buck converter in secondary side. The boost converter is used to generate high v...