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首页> 外文期刊>IEEE Transactions on Energy Conversion >State-of-the-Art of the Medium-Voltage Power Converter Technologies for Grid Integration of Solar Photovoltaic Power Plants
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State-of-the-Art of the Medium-Voltage Power Converter Technologies for Grid Integration of Solar Photovoltaic Power Plants

机译：用于太阳能光伏电站并网的中压功率转换器技术的最新发展

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摘要

More than 170 countries have already established renewable energy targets to meet their national increasing energy demand and also to keep their environment sustainable. Due to a number of features, the use of the multi-megawatt solar photovoltaic (PV) power plants is becoming the preferred choice for escalating and updating the power systems all over the world. Moreover, the solar PV power plant is also the first choice for meeting rapidly growing demands; as it can be installed relatively quickly, say in 6-12 months, compared to that of the fossil-fuel-based plants that may require more than 4-5 years. The traditional low-voltage (288-690 V) converter-based system requires a step-up transformer and a line filter to interconnect a solar PV power plant with medium-voltage grids. Recently, the use of medium-voltage converters without a step-up transformer and a line filter has become more attractive for direct medium-voltage grid integration of solar PV power plants. This paper aims to review the necessity and the technical challenges in developing medium-voltage power electronic converters, including the converter circuit topologies and control techniques used in the development of medium-voltage converters to interconnect solar PV power plants to medium-voltage grids directly. In this paper, a comprehensive review of the current research activities and the possible future directions of research to develop medium-voltage converter technologies to provide for a cost-effective grid integration of solar PV power plants are presented.
机译：已有170多个国家制定了可再生能源目标，以满足其国家不断增长的能源需求，并使环境可持续发展。由于具有许多功能，多兆瓦太阳能光伏（PV）发电厂的使用正成为在全球范围内升级和更新电力系统的首选选择。此外，太阳能光伏电站也是满足快速增长的需求的首选。因为它可以相对较快地安装（例如6到12个月），而化石燃料工厂的安装可能需要4到5年以上的时间。基于传统低压（288-690 V）转换器的系统需要升压变压器和线路滤波器，以将太阳能光伏电站与中压电网互连。最近，对于不带升压变压器和线路滤波器的中压转换器的使用，对于太阳能光伏电站的直接中压电网集成变得越来越有吸引力。本文旨在回顾开发中压电力电子转换器的必要性和技术挑战，包括在中压转换器的开发中使用的转换器电路拓扑和控制技术，以直接将太阳能光伏电站与中压电网互连。在本文中，对当前的研究活动以及开发中压转换器技术以提供具有成本效益的太阳能光伏电站并网集成的研究的未来可能发展方向进行了全面回顾。

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