Engineering Research Equipment Grant: Digital Oscilloscope and Personal Computer System

工程研究设备补助金：数字示波器和个人计算机系统

• 批准号: 8704820
• 负责人: Subbaraya Yuvarajan
• 金额: $ 2.86万
• 依托单位: North Dakota State University Fargo
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-10-01 至 1990-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8704820&HistoricalAwards=false
• 关键词: Engineering; Research; Equipment; Grant; Digital

Thyristor converters are used in a wide variety of applications such as industrial drives and power supplies. During the process of power conversion, harmonics of varying levels are introduced in the output. It becomes necessary to limit the harmonic content below a specified value. While the computation of harmonics by analytical methods is not possible, the only other method is to record the actual waveform and analyze it using a computer. In the method analysis proposed, the experimental waveform is monitored and stored using a digital oscilloscope and then analyzed using a personal computer system. It is possible to evaluate different types of converters and identify sources of malfunction by this method. In a conventional thyristor rectifier, an attempt to reduce the out put voltage by increasing the firing angle results in a low power factor. It is proposed to develop converter systems with improved power factor by adding a suitable force-commutation circuit. This simulating package I-G SPICE will be used to design and analyze new converter configurations. The outcome of the research, thus, will have a definite impact on the current thyristor drive technology.

晶闸管转换器用于各种各样的应用中，例如 作为工业驱动器和电源。 在权力的过程中 在这种转换中，在输出中引入不同电平的谐波。 有必要将谐波含量限制在规定的 值 而用解析法计算谐波， 不可能，唯一的其他方法是记录实际波形 然后用电脑分析 在方法分析中， 实验波形被监控并使用数字存储器存储。 示波器，然后使用个人计算机系统进行分析。 它 可以评估不同类型的转换器并识别 通过这种方法的故障源。 在传统的晶闸管整流器中，试图减少输出电流， 通过增加触发角来放置电压导致低功率 因子 建议开发具有改进的 功率因数增加一个合适的强制换向电路。 这 仿真软件I-G SPICE将用于设计和分析新的 转换器配置。 因此，研究结果将 对目前的晶闸管驱动技术有一定的影响。