Design Implication of a Distribution Transformer in Solar Power Plants Based on Its Harmonic Profile
Design Implication of a Distribution Transformer in Solar Power Plants Based on Its Harmonic Profile
复制标题
基于谐波分布的太阳能发电厂配电变压器的设计意义
DOI：
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发表时间：
2021
期刊：
影响因子：
3.2
通讯作者：
Mario Alberto González Vázquez
中科院分区：
文献类型：
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作者：
Iván Rafael Macías Ruiz;Luis Alonso Trujillo Guajardo;Luis Humberto Rodríguez Alfaro;Fernando Salinas Salinas;Johnny Rodríguez Maldonado;Mario Alberto González Vázquez
本文对太阳能发电变压器的设计考虑进行了比较分析。变压器制造中存在的主要问题之一是在可再生能源领域，特别是太阳能发电领域，与逆变器相连的变压器是在一定的谐波含量和运行条件下运行的。对于每个太阳能发电厂来说，连接到逆变器的变压器的运行状况是特别未知的；因此，变压器将受到特定的谐波含量，这是由太阳能发电厂的逆变器定义的。首先，介绍了太阳能电站变压器的基本计算方法和配电盘式三相变压器的设计计算方法。然后，描述了一个设计研究案例，其中使用特定太阳能发电厂的配电变压器和逆变器进行分析。接下来，在ANSYS Maxwell®软件中使用有限元分析对所分析的变压器进行建模，其中变压器将被设计为非谐波和谐波含量应用。最后，对变压器的主要设计参数、磁通密度、铁心损耗和绕组励磁电压进行了计算，并在结果与讨论部分给出。
This article presents a comparative analysis for the design considerations for a solar power generation transformer. One of the main existing problems in transformer manufacturing is in the renewable energy field, specifically the solar power generation, where the transformer connected to the inverter is operated under a certain harmonic content and operating conditions. The operating conditions of the transformer connected to the inverter are particularly unknown for each solar power plant; thus, the transformer will be subject to a particular harmonic content, which is defined by the inverter of the solar power plant. First, the fundamental calculations for solar power plant transformer and the proposed methodology for the design calculation of the distribution pad-mounted three phase transformer are presented. Then, a design study case is described where a distribution transformer and an inverter of a particular solar power plant are used for the analysis. Next, the transformer under analysis is modeled using finite element analysis in ANSYS Maxwell® software, where the transformer will be designed for a non-harmonic and harmonic content application. Lastly, the main design parameters, flux density, the core losses and the winding excitation voltage of the transformer are calculated and presented in results and discussion section.