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首页> 外文期刊>IEEE Transactions on Power Delivery >Distributed Generation for Mitigating Voltage Dips in Low-Voltage Distribution Grids
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Distributed Generation for Mitigating Voltage Dips in Low-Voltage Distribution Grids

机译：减轻分布式配电网中电压骤降的分布式发电

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摘要

The presence of synchronous and induction generators has a positive effect on the retained voltage (the lowest rms voltage during the event) during voltage dips in high voltage networks. The impact of converter-connected distributed-generation (DG) units has been reported to be negligible, as most converters operate at unity power factor, and the currents injected in the grid are limited to the nominal current of the converter. However, the impact of DG units on the distorted grid voltage is strongly dependent on the voltage level, and thus the grid impedance, of the concerned grid. This paper investigates and compares the effects of converter-based DG units, synchronous and asynchronous generators on the retained voltage during voltage dips in low voltage distribution grids.
机译：同步发电机和感应发电机的存在会对高压网络中的电压骤降期间的保持电压（事件期间最低的均方根电压）产生积极影响。据报道，与转换器连接的分布式发电（DG）单元的影响可以忽略不计，因为大多数转换器以单位功率因数运行，并且注入电网的电流限于转换器的标称电流。但是，DG单元对扭曲的电网电压的影响在很大程度上取决于相关电网的电压水平，进而取决于电网阻抗。本文研究并比较了基于转换器的DG单元，同步发电机和异步发电机对低压配电网中的电压突降期间保持电压的影响。

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