Measurement Techniques for Distribution Line Impedance by Minimum Pulse Injection
Measurement Techniques for Distribution Line Impedance by Minimum Pulse Injection作者机构：Department of Electrical Engineering Chubu University Matsumoto-cho Kasugai City Aichi 487-8501 Japan Chubu Electric Power Co. Inc. Ootaka-cho Midori-ku Nagoya-city Aichi 459-8522 Japan
出 版 物：《Journal of Energy and Power Engineering》 (能源与动力工程（美国大卫英文）)
年 卷 期：2013年第7卷第10期
页 面：1998-2005页
学科分类：081901[工学-采矿工程] 080802[工学-电力系统及其自动化] 0808[工学-电气工程] 0819[工学-矿业工程] 08[工学]
主 题：Line impedance distribution system line capacitance LC resonance pulse injection.
摘 要：With a live wire, line impedance could be measured by means of only passive elements such as inductors or resistors, whose techniques are well known. However, as the voltage and current used for the measurement are increased, the size of the inductor or resistor being used also needs to be increased, so it would be virtually impossible to make an accurate measurement. Because of this, the authors have developed a novel measurement method for line impedance using LC resonance, which the authors describe first place. In the second place, the authors propose another line impedance. The novel method is that the rectangular wave with minimum voltage is injected into the distribution line system. By means of this method, the line capacitance and the line inductance can be measured. These proposals are confirmed by the simulation or experiment. Finally, the frequency response analysis method is to be examined, whose mechanism and results are to be presented and discussed.
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