A practical approach to switching-loss reduction in a large-capacity static VAr compensator based on voltage-source inverters
抄録
<p>This paper presents a simple method for reduction of switching and snubbing losses in a large-capacity static VAr compensator (SVC) consisting of multiple three-phase voltage-source square-wave inverters. The proposed method is characterized by a "commutation capacitor" connected in parallel with each switching device. The commutation capacitor allows the SVC to perform zero-voltage switching, and to reduce switching losses. The electric charge stored in the commutation capacitor is not dissipated, but regenerated to the DC-link capacitor. Moreover, a soft-starting method for the SVC is also presented to avoid forming a short circuit across the commutation capacitor during startup. Experimental results obtained from a 10 kVAr laboratory setup are shown to verify the viability of the operating principle of the commutation capacitor </p>
収録刊行物
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- Industry Applications
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Industry Applications 1396-1404, 2000-10
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詳細情報 詳細情報について
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- CRID
- 1571135652601711744
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- NII論文ID
- 120002307040
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- 本文言語コード
- en
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- データソース種別
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- CiNii Articles