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arXiv 2602.00798eess.SYcs.SY
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混合配电变压器的建模与控制以同时提供电网服务

Modeling and Control of Hybrid Distribution Transformers for Simultaneous Grid Services

University of Oxford(牛津大学);Ionate Ltd(Ionate有限公司)

Martin Doff-Sotta, Florian Cech, Rishabh Manjunatha, Costantino Citro, Matthew Williams, Thomas Morstyn

AI总结:

本文提出了一种混合配电变压器的模型与控制方法,通过级联PI控制器实现负载电压调节、无功功率补偿和电网频率调节,以同时提供多种电网服务。

摘要:

混合配电变压器(HDTs)将传统变压器与部分额定功率电子转换器结合,以提高电力质量,实现高级辅助服务,并增加可再生能源在国家电网中的渗透率。本文提出了一个三相HDT的平均数学模型,该HDT配备了两个背对背电压源转换器,以串联-并联配置连接。在同步旋转的dq0参考框架中设计了级联PI控制器,以调节负载电压、补偿无功功率、实现电网频率调节和执行负载相平衡。在Python中实现的仿真结果证实,这些简单而有效的控制机制使HDTs能够在不引入复杂性的情况下同时提供电网服务。完整的模型、控制架构和实施步骤都得到了详细描述,从而进一步验证和采用。

英文摘要:

Hybrid distribution transformers (HDTs) integrate conventional transformers with partially rated power electronic converters to improve power quality, enable advanced ancillary services and increase penetration of renewable energy sources in the national power grid. In this paper, we present an averaged mathematical model of a three-phase HDT equipped with two back-to-back voltage source converters connected in a series-shunt configuration. Cascaded PI controllers are designed in the synchronously rotating dq0 reference frame to regulate load voltage, compensate reactive power, achieve grid frequency regulation, and perform load phase balancing. Simulation results implemented in Python confirm that these simple yet effective control mechanisms allow HDTs to offer simultaneous grid services without introducing complexity. The complete model, control architecture, and implementation steps are detailed, enabling further validation and adoption.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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