Design and Implementation of a Two-Stage Grid-Connected High Efficiency Power Load Emulator
Design and Implementation of a Two-Stage Grid-Connected High Efficiency Power Load Emulator
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DOI：
10.1109/tpel.2013.2295023
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发表时间：
2014-08
影响因子：
6.7
通讯作者：
H. Kanaan;M. Caron;K. Al-haddad
中科院分区：
文献类型：
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作者：
H. Kanaan;M. Caron;K. Al-haddad
减少开发和实施功率转换器的时间消耗以及提高测试设备的有效性的需求持续增长。这种趋势通过基于电力的技术（例如电动或混合动力车辆）的发展而进一步加速。随着能源价格的持续上涨，用于验证功率转换器的再生测试设备越来越受到重视和关注。本文主要研究两级式再生电力负载模拟器的开发。这种类型的智能负载需要连接到网络接口，对于某些应用，网络接口应该是双向的，并且必须具有电流隔离。本文论述了这种进行交流-直流变换的并网装置的发展。一个5千瓦的原型是作为一个基地，建模，仿真，设计，实施和测试这样的系统。两个转换级之间的互连的稳定性建立和测试在实时应用。原型在180、220和260 V RMS下进行了测试。在较宽的工作范围内，测得的效率高于90%，功率因数为0.99。
The need to reduce the time consumption in developing and implementing power converters, and to improve the effectiveness of the test equipment, continues to grow. This trend is further accelerated through the development of electricity-based technology, such as the electric or hybrid vehicle. As the price of energy continues to increase, regenerative test equipment used for validating power converters are gaining importance and attention. This paper focuses on the development of a two-stage regenerative power load emulator. This type of intelligent load requires a connection to the network interface, which, for some applications, should be bidirectional and must possess a galvanic isolation. The development of such grid-connected unit that processes ac-dc conversion is treated in this paper. A 5 kW prototype is used as a base to model, simulate, design, implement, and test such a system. The stability of the interconnection between the two conversion stages is established and tested in real-time applications. The prototype was tested at 180, 220, and 260 V RMS. The measured efficiency is higher than 90%, and the power factor is 0.99 over a wide range of operation.