在联网可再生能源应用中,用于开关电容器MLI的强大的PWM控制方案,具有泄漏电流抑制
Alaaeldien Hassan1,2, Mohamad Abou Houran1, Wenjie Chen1
1School of Electrical Engineering, Xi'an Jiaotong University, Xi'an, 710049, China.
Heliyon
|June 24, 2024
概括
一种新的PWM控制方法显著降低了电网连接的太阳能光伏系统的泄漏电流25%. 这提高了开关电容器多级逆变器的安全性和功率质量.
科学领域:
- 电气工程 电气工程
- 可再生能源系统可再生能源系统
背景情况:
- 连接到电网的光伏系统中的寄生容量会导致危险的泄漏电流.
- 这些电流构成安全风险,并通过波降低功率质量.
研究的目的:
- 引入一个强大的PWM控制方法来减少泄漏电流.
- 为了提高开关电容器多级逆变器的功率质量.
主要方法:
- 开发了一种PWM控制技术,使用修改的参考信号进行转换器切换.
- 采用少量的载波信号,以实现更快的系统响应和更简单的控制.
- 开关电容器的利用电压调节用于稳定的输出电压控制.
主要成果:
- 与传统的阶段配置 (PD) PWM相比,拟议的PWM方法减少了25%的泄漏电流.
- 实现了更快的系统响应和更简单的控制器算法.
- 通过电容器电压调整证明了稳定的输出电压调节.
结论:
- 新的PWM控制策略有效地减轻了光伏系统中的泄漏电流.
- 该方法提高了电力质量,并确保了与电网连接的应用程序的安全性.
- 模拟和硬件结果证实了拟议方法的有效性和相似性.
关键词:
泄漏电流缓解 (LM) PWM PWM泄漏电流的抑制 泄漏电流的抑制多级逆变器多级逆变器阶段配置 (PD) PWM PWM 的阶段配置 (PD)脉冲宽度调制脉冲宽度调制没有变压器的光伏 (PV) 系统.更多相关视频
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