Neal J Balu

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The paper describes a simulator study of a four-terminal HVdc system with a small parallel tap and interconnected to an AC network with weak AC systems at the four dc terminals. The small tap is rated at 25% of the rating of the HVdc system and the effective short-circuit ratios at the dc terminals are in the range of 2.1 to 3.0. The study includes the(More)
The key information required for quantitative evaluation of bulk power system reliability includes frequency and duration of multiple transmission line outages that cause system problems. Two fundamental approaches to reporting and analyzing transmission performance data to predict these multiple outages have evolved in the industry. These have been(More)
Efficient load models are essential and important for power system load modeling constraint voltage stability studies. Dynamic load models allow a more precise calculation of stability limits that are critical in the planning and operation of power systems. Voltage stability which defines ability of a power network to maintain steady voltages deals with(More)
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