multilevel circuit 中文意思是什麼
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The following is the main works and conclusions of this thesis. the novel upfc needs high power rate because it is generally used in high voltage transmission lines. after studied high - power converters and the literatures of upfc, the main circuit topology of novel upfc base on diode - clamping multilevel inverter is presented and the principle of using novel upfc to eliminate zero sequence and negative sequence currents is analyzed
本文所做的主要工作及得出的主要結論如下：由於upfc一般用於高壓輸電線，其功率等級要求很高，在綜合研究大功率變換器和upfc現有文獻的基礎上，提出了基於二極體箝位多電平變換器的新型upfc的主電路拓撲，分析了用其來濾出高壓輸電線非全相運行時所產生的零序和負序電流的原理。 -
The series h - bridge multilevel converter ' s power circuit is composed of uncontrolled rectifier with filtering capacitor and single phase h - bridge voltage - type inverter
串聯h橋多電平變頻器的主迴路從結構上可分為三相電容濾波不可控整流電路和單相電壓型全橋逆變電路。 -
Based on its strong technology and economy foundation, the mastery of core technology in safe guard engineering, network communication and digital video, the company successfully implemented many projects in many social fields, such as in government, water conservancy department, commercial, education, large scale enterprise and police with the gaining of great social efficiency, which the projects include multilevel remote monitoring system, public security guard system, closed - circuit television, large - scale network communication, network education, multimedia network alternate education platform, multimedia conference system, multimedia video ordering system, digital video recording, and video broadcasting application
憑借強大的技術和經濟實力以及公司在安防監控工程、網路通訊和數字視頻技術領域所掌握的核心技術，本公司先後成功的實施了多級遠程監控系統、治安監控系統、閉路電視監控系統、大型網路傳輸工程、網路教學系統、多媒體網路交互教學平臺、多媒體會議系統、多媒體視頻點播系統、數字錄像、視頻廣播等工程已在政府、水利、金融、教育、大型企業、公安等多個行業中被廣泛應用，並取得了良好的社會效益。 -
The multilevel topology has fault - tolerant ability in case of switch failures as well as self - voltage balancing ability without any additional control or neutral - point balancing circuit
該電路拓撲中所有電容電壓能實現自平衡，並且對開關管故障具有容錯能力。
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