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Generator Cars with Hybrid Power Plants

机译:混合动力发电厂的发电机车

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Centralized power supply systems for passenger and special trains with generator cars (GCs) are characterized by a lower specific weight and cost of equipment and lower service and repair expenses, as well as the possibility of using the standard general-purpose electrical apparatus. Their disadvantages include a large amount of noxious atmospheric emissions when diesel generators with a load less than the rated value are in operation and a high noise level. This hinders the operation of GCs at stations and depots and in tunnels. Designing combined power systems in which alternative energy sources, particularly as regards electrochemical generators (ECG) characterized by the absence of noxious atmospheric emissions, low noise level, higher efficiency increasing with the loads lower than the rated ones are used along with diesel generators is a method of improving the ecological performance of generator cars. The power control methods, the principles of control system construction, and the variants of the structure and an ECG energy channel operating with a voltage inverter in parallel to a synchronous generator are discussed in this article. The possibility of controlling the active and reactive powers of the ECG energy channel within a wide range by changing the modulation coefficient and the initial phase of the master effect of the voltage inverter is shown. A block diagram of the control system providing high speed and satisfactory quality of the transient processes in the energy system with the GC is proposed. The mathematical modeling method is used to indicate the possibility of ensuring a satisfactory quality of electric energy on the channel output (the total harmonic distortion does not excess 10-12%) with a rather high efficiency (80-88%) over the total power range.
机译:带有发电机车厢(GC)的乘用车和特种火车的集中供电系统的特点是重量轻,设备成本低,服务和维修费用低,并且可以使用标准的通用电气设备。它们的缺点包括:当负载低于额定值的柴油发电机处于运行状态时,会产生大量的有害气体排放,并且噪声水平很高。这阻碍了GC在车站,仓库和隧道中的运行。设计组合动力系统,其中将替代能源,特别是电化学发电机(ECG)的特点与柴油发电机一起使用,该替代能源的特征是不存在有害的大气排放物,低噪音水平,在负载低于额定负载的情况下以更高的效率提高负荷改善发电汽车生态性能的方法。本文讨论了功率控制方法,控制系统构造原理,结构变体和与同步发电机并联的电压逆变器工作的ECG能量通道。示出了通过改变电压逆变器的主效应的调制系数和初始相位来在较大范围内控制ECG能量通道的有功功率和无功功率的可能性。提出了使用GC在能源系统中提供高速且令人满意的过渡过程质量的控制系统框图。数学建模方法用于指示以相对于总功率的相当高的效率(80-88%)来确保通道输出上的电能质量令人满意(总谐波失真不超过10-12%)的可能性。范围。

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