書誌事項
- タイトル別名
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- Distance Relay Using High Speed Sampling Technology
- コウソク サンプリング ホウシキ オ テキヨウシタ キョリ ケイデンキ
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抄録
The networks rely on distant power generation facilities, underground cables and large static capacities. In case of a fault on the lines, this sometimes causes an LC resonance circuit to generate low-frequency harmonics that are approximately twice as high as the fundamental frequency. Such low-frequency harmonics cause the deterioration of distance-measurement accuracy in distance relays. To solve this problem, distance relay based on differential equations are now used as they are affected by the higher harmonics resulting from LC resonance. However, the derivative of current with respect to time (J) is calculated by using a computer, and the accuracy of the computation greatly affects the relay performance. And conventional relays based on differential equations have the limits to detect the corrective impedance, because the term J in differentional equation is poorly computed by harmonics that are higher frequency than the low-frequency harmonics.<br> By using the high-speed sampling technology, we improve the performance of distance relays based on differential equations.
収録刊行物
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- 電気学会論文誌B(電力・エネルギー部門誌)
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電気学会論文誌B(電力・エネルギー部門誌) 114 (7-8), 701-707, 1994
一般社団法人 電気学会
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詳細情報 詳細情報について
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- CRID
- 1390001204606588416
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- NII論文ID
- 130006842715
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- NII書誌ID
- AN10136334
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- ISSN
- 13488147
- 03854213
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- NDL書誌ID
- 3891698
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- データソース種別
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- JaLC
- NDL
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- 抄録ライセンスフラグ
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