Time varying nature of the wind power is studied previously considering different time intervals from seconds to days. However for quality problems such as flicker, a model which considers extremely fast variations essential. Here by using large number actual records, time-varying proposed short-time active and reactive powers. The farm modelled current source with amplitude phase change every ...

In many industrial applications the self-starting capability of electric motors is still an important requirement enabling to simplify drive architecture and increase system's reliability. The efficiency improvement this motor topology has been targeted by various national international regulatory authorities with ad-hoc policies. Indeed, a lower energy consumption leads twofold benefits reduci...

This paper presents a hybrid renewable energy system (RES) including wind and photovoltaic (PV) power sources. The subsystem (WES) consists of squirrel-cage induction generator (SCIG) driven by variable-speed turbine (WT) corresponding electronic converter, means which speed-sensorless indirect-rotor-field-oriented control the SCIG is implemented. outputs both WES PV source rated 1.5 kW 3.5 kW,...