Asynchronized synchronous machines in self-contained power systems

A. Hayrapetian, G. A. Poghpatian
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引用次数: 2

Abstract

The increasing role of self-contained power generation and the steady rise of its share in total balance of produced electric power necessitate development and improvement of highly efficient systems of electric power supply and its quality and reliability. In this connection asynchronized synchronous machines (ASM) have high prospects for use instead of traditional synchronous machines in diesel-generator sets (DGS), motor-generators, "variable speed-constant frequency" systems, and particularly in wind power plants. The paper describes structural-and-design specific features of ASM: incorporated in DGS, which allow improvement to some technical-and-economic indices related to fuel and oil consumption, increase of DGS service life and improvement of transient performance. A general block diagram of asynchronized synchronous machine operating in generator mode (ASG) is given, as well as the basic requirements to ASG excitation system are determined and static frequency converters included in excitation circuits are compared and briefly analyzed. A number of periodical nonsinusoidal curve shape quality indices are discussed in parallel with the analysis of methods for improvement of ASG building structure with an artificially-commutated direct frequency converter as well as new unique structural-and-technical solutions possessing broadened functional capacities and improved voltage curve shapes are given. ASG output voltage curve and its sine-distortion and harmonic rejection factors are described mathematically.<>
自给式电力系统中的异步同步电机
自备发电的作用日益增强,自备发电在总发电量中所占的比重稳步上升,这就要求发展和改进高效的供电系统,提高供电系统的质量和可靠性。在这方面,异步同步电机(ASM)在柴油发电机组(DGS)、电机发电机、“变速恒频”系统,特别是风力发电厂中,取代传统同步电机具有很高的应用前景。本文介绍了在DGS中采用ASM的结构特点和设计特点,使DGS的油耗、油耗等技术经济指标得到改善,使用寿命得到延长,瞬态性能得到改善。给出了异步同步电机发电机模式运行的总体框图,确定了异步同步电机励磁系统的基本要求,并对励磁电路中采用的静态变频器进行了比较和简要分析。讨论了一系列周期性非正弦曲线形状质量指标,分析了采用人工换向直接变频器改善ASG建筑结构的方法,并提出了具有拓宽功能和改善电压曲线形状的独特结构技术新方案。用数学方法描述了ASG输出电压曲线及其正弦畸变和谐波抑制因子。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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