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首页> 外文期刊>American journal of applied sciences >Voltage Swells Improvement in Low Voltage Network Using Dynamic Voltage Restorer | Science Publications
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Voltage Swells Improvement in Low Voltage Network Using Dynamic Voltage Restorer | Science Publications

机译：使用动态电压恢复器改善低压网络中的电压骤升科学出版物

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> Problem statement: Voltage disturbances are the most common power quality problem due to the increased use of a large numbers of sophisticated electronic equipment in industrial distribution system. The voltage disturbances such as voltage sags, swells, harmonics, unbalance and flickers. High quality in the power supply is needed, since failures due to such disturbances usually have a high impact on production cost. There are many different solutions to compensate voltage disturbances but the use of a DVR is considered to be the most cost effective method. The objective of this study is to propose a new topology of a DVR in order to mitigate voltage swells using a powerful power custom device namely the Dynamic Voltage Restorer (DVR). Approach: New configuration of a DVR with an improvement of a controller based on direct-quadrature-zero method has been introduced to compensate voltage swells in the network. Results: The effectiveness of the DVR with its controller were verify using Matlab/Simulinks SimPower Toolbox and then implemented using 5KVA DVR experimental setup. Simulations and experimental results demonstrate the effective dynamic performance of the proposed configuration. Conclusion: The implimentation of the proposed DVR validate the capabilities in mitigating of voltage swells effectiveness.During voltage swells, the DVR injects an appropriate voltage to maintain the load voltage at its nominal value.
机译： > 问题陈述：由于工业配电系统中大量使用复杂的电子设备，电压干扰是最常见的电能质量问题。诸如电压骤降，骤升，谐波，不平衡和闪烁之类的电压干扰。需要高质量的电源，因为这种干扰引起的故障通常会对生产成本造成很大影响。有许多不同的解决方案可以补偿电压干扰，但使用DVR被认为是最经济有效的方法。这项研究的目的是提出一种DVR的新拓扑，以使用功能强大的功率定制设备即动态电压恢复器（DVR）减轻电压骤升。 方法：为了补偿网络中的电压骤升，引入了DVR的新配置以及对控制器的改进，该配置基于直接正交零法。结果：有效性使用Matlab / Simulinks SimPower Toolbox验证DVR及其控制器的状态，然后使用5KVA DVR实验设置进行实施。仿真和实验结果证明了所提出配置的有效动态性能。 结论：所提出的DVR的实现验证了缓解电压骤升有效性的能力。在电压骤升期间，DVR注入适当的电压以将负载电压保持在其标称值。

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