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Energy conversion in small water plants with variable speed PM generator

机译：小型PM发电机在小型水厂中的能量转换

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The Small Hydro Power Plants allow to increase the energy amount from renewable sources, especially from small rivers in mountainous areas. This paper presents a new concept of a energy conversion system for application in a Small Hydropower Plant (SHP) which is based on a permanent magnet generator (PM generator) with a propeller turbine integrated with the generator rotor. The PM generator can work at a variable speed and therefore energy produced by the PM generator has to be converted by means of a power electronic unit to fit to the three-phase power grid parameters. For this concept, dimensions and parameters of the PM generator were specially designed on account of integration with water turbine. The paper precisely describes elements of energy conversion system and also presents the results of numerical tests for chosen working conditions. An original algorithm of control strategy for power electronic unit was used to adjust generated energy to the required parameters of the three-phase grid.
机译：小型水力发电厂可以增加可再生能源的能量，特别是山区的小河。本文提出了一种适用于小型水力发电站（SHP）的能量转换系统的新概念，该系统基于永磁发电机（PM发电机），并且螺旋桨式涡轮机与发电机转子集成在一起。 PM发电机可以变速运行，因此PM发电机产生的能量必须借助电力电子单元进行转换，以适应三相电网参数。对于这个概念，PM发电机的尺寸和参数是根据与水轮机集成而专门设计的。本文精确地描述了能量转换系统的要素，并给出了针对所选工作条件的数值测试结果。电力电子单元控制策略的原始算法用于将生成的能量调整到三相电网的所需参数。

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