摘 要
随着智能电网的发展，电力电子变压器（PET）作为关键设备，因其高效、灵活的电能转换与调控能力而备受关注。本文旨在研究基于PET的智能电网关键技术，以提升电网的稳定性、可靠性和智能化水平。通过构建包含PET的智能电网模型，采用仿真分析与实验验证相结合的方法，深入探讨PET在智能电网中的应用特性及其对电网性能的影响。研究发现，PET能够实现电压等级变换、功率调节、电能质量改善等多功能集成，有效解决了传统变压器难以适应智能电网需求的问题。创新性地提出了一种基于PET的分布式电源接入优化策略，该策略可显著提高分布式电源的接纳能力，增强电网的自愈能力和运行效率。此外，还开发了适用于PET的智能控制算法，实现了对电网潮流的精准控制，为智能电网的安全稳定运行提供了新的解决方案，研究成果对推动智能电网技术进步具有重要意义。
关键词：电力电子变压器；智能电网；分布式电源接入
Abstract
With the development of smart grids, power electronic transformers (PETs) have garnered significant attention as key equipment due to their efficient and flexible capabilities in power conversion and regulation. This study focuses on the critical technologies of smart grids based on PETs to enhance grid stability, reliability, and intelligence. By constructing a smart grid model incorporating PETs, this research combines simulation analysis with experimental validation to thoroughly investigate the application characteristics of PETs in smart grids and their impact on grid performance. The findings indicate that PETs can achieve multi-functional integration, including voltage level transformation, power regulation, and power quality improvement, effectively addressing the challenges faced by traditional transformers in adapting to smart grid requirements. An innovative distributed power source access optimization strategy based on PETs is proposed, which significantly enhances the accommodation capability of distributed power sources and strengthens the self-healing ability and operational efficiency of the grid. Furthermore, an intelligent control algorithm tailored for PETs has been developed, achieving precise control over grid power flow, providing new solutions for the safe and stable operation of smart grids. The research outcomes are of great significance in promoting the technological advancement of smart grids.
Keywords: Power Electronic Transformer；Smart Grid；Distributed Generation Integration
目 录
引言 1
一、电力电子变压器概述 1
（一）电力电子变压器原理 1
（二）发展历程与现状 2
（三）关键技术挑战 2
二、智能电网中的应用需求 2
（一）智能电网架构分析 3
（二）应用场景与要求 3
（三）技术适应性研究 3
三、核心技术研究 4
（一）拓扑结构优化 4
（二）控制策略设计 4
（三）效率提升方法 5
四、系统集成与实现 5
（一）系统设计方案 5
（二）实验验证分析 6
（三）工程应用前景 6
结 论 7
致 谢 8
参考文献 9
随着智能电网的发展，电力电子变压器（PET）作为关键设备，因其高效、灵活的电能转换与调控能力而备受关注。本文旨在研究基于PET的智能电网关键技术，以提升电网的稳定性、可靠性和智能化水平。通过构建包含PET的智能电网模型，采用仿真分析与实验验证相结合的方法，深入探讨PET在智能电网中的应用特性及其对电网性能的影响。研究发现，PET能够实现电压等级变换、功率调节、电能质量改善等多功能集成，有效解决了传统变压器难以适应智能电网需求的问题。创新性地提出了一种基于PET的分布式电源接入优化策略，该策略可显著提高分布式电源的接纳能力，增强电网的自愈能力和运行效率。此外，还开发了适用于PET的智能控制算法，实现了对电网潮流的精准控制，为智能电网的安全稳定运行提供了新的解决方案，研究成果对推动智能电网技术进步具有重要意义。
关键词：电力电子变压器；智能电网；分布式电源接入
Abstract
With the development of smart grids, power electronic transformers (PETs) have garnered significant attention as key equipment due to their efficient and flexible capabilities in power conversion and regulation. This study focuses on the critical technologies of smart grids based on PETs to enhance grid stability, reliability, and intelligence. By constructing a smart grid model incorporating PETs, this research combines simulation analysis with experimental validation to thoroughly investigate the application characteristics of PETs in smart grids and their impact on grid performance. The findings indicate that PETs can achieve multi-functional integration, including voltage level transformation, power regulation, and power quality improvement, effectively addressing the challenges faced by traditional transformers in adapting to smart grid requirements. An innovative distributed power source access optimization strategy based on PETs is proposed, which significantly enhances the accommodation capability of distributed power sources and strengthens the self-healing ability and operational efficiency of the grid. Furthermore, an intelligent control algorithm tailored for PETs has been developed, achieving precise control over grid power flow, providing new solutions for the safe and stable operation of smart grids. The research outcomes are of great significance in promoting the technological advancement of smart grids.
Keywords: Power Electronic Transformer；Smart Grid；Distributed Generation Integration
目 录
引言 1
一、电力电子变压器概述 1
（一）电力电子变压器原理 1
（二）发展历程与现状 2
（三）关键技术挑战 2
二、智能电网中的应用需求 2
（一）智能电网架构分析 3
（二）应用场景与要求 3
（三）技术适应性研究 3
三、核心技术研究 4
（一）拓扑结构优化 4
（二）控制策略设计 4
（三）效率提升方法 5
四、系统集成与实现 5
（一）系统设计方案 5
（二）实验验证分析 6
（三）工程应用前景 6
结 论 7
致 谢 8
参考文献 9
