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This paper presents a technique to improve the frequency response of a grid system having synchronous generators (steam and hydro types) and a fixed speed induction generator wind turbine. An embedded Low Pass Filter (LPF) in the DC chopper unit of an Energy Capacitor System (ECS) control toplogy was used to provide active and reactive power control to the grid network that is supplying heavy and...
This paper reports on an overview of the current electricity situation in Namibia that renders it necessary for capacity expansion of electricity generation in order to meet the country's abounding electricity needs. A discussion of the efforts made by the Namibian national power utility, NamPower and the country's government will be presented in the paper, followed by an abbreviated review of on-going...
During recent years, the size of individual wind turbines has grown closer to 10 MW, and the size of wind power plants has increased significantly to 300 MW or more. This growing size of wind power generation requires that careful evaluation of transient stability of the overall grid should be undertaken. This paper attempts to investigate the impact of wind power plant penetration on the transient...
Wind turbine manufacturers are adapting their equipment to comply with increasingly strict transmission integration requirements. One class of the new turbines being developed is the synchronous machine (either wound field or permanent magnet excited) with full AC/DC/AC power electronic conversion. The topology of the new machines differs considerably from that of more conventional forms of power...
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