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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
Special features of steady-state and transient operating conditions of direct current transmission (DCT) lines and back-to-back direct-current converter stations (BBS) based on voltage converters (VC) on fully controlled valves (FCV) are considered.
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High voltage direct current transmission also fits the model we describe since it is often modelled as a paired generator and demand.
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| | This paper analyses dual-gate MESFET performances by two-dimensional DC transfre characteristic, and s- and y- parameters. Both device design and experimental results are presented. The opttimun results of noise figure and associated gain are obtained: 0.7dB, 22.4dB at 1GHz; 0.9dB 15.5db, at 1.9GHz. | | 本文采用二维直流传输特性和s、y参数分析双栅MESFET的性能,介绍了器件设计和实验结果.得到的最佳性能为:在1GHz下噪声系数0.7dB,相关增益22.4dB;在1.9GHz下,噪声系数0.9dB,相关增益15.5dB. | | 文摘来源 | | In this paper it is proved that for the linear system the area trans-form ratio of the input and output pulses is just equal to the direct transferringcoefficient of the system and is independent of the wave form of the pulses.A seriesof possible applications of this result are also discussed. | | 本文证明了对线性系统来说,输入脉冲与输出脉冲的面积变换系数与脉冲形状无关,其数值就等于系统的直流传输系数。文中还讨论了这一结果在许多测量过程中的应用。 | | 文摘来源 | | This paper deals with the dynamic Simulation for 12 pulse convevters using a converter representation based on the analysis of modified cut matrices, and develops a mathematical model for HVDC system containing AC and DC transmission systems, converters and controllers using the Diakoptics. A corresponding, computer program is drawn up which is a flexible and accurate simulation of the first term project of the Gezhouba-shang-hai ± 500k V HVDC system which operates under the normal and faulted conditions. | | 本文采用以修正割集矩阵为基本理论的换流桥模型解决了双桥换流器的仿真问题,并用网络分裂方法导出了包含交流系统、换流器、直流传输网络以及控制调节器在内的整个系统的数学模型,编写了相应的计算机程序,以葛-沪高压直流输电系统的第一期工程为例,计算了其稳态及部分故障状态下的主要参数。 | | 文摘来源 | |   | | << 更多相关文摘 |
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