电力调节机组直流链路电压的自适应控制

2017 International Conference on Electrical, Electronics, Communication, Computer, and Optimization Techniques (ICEECCOT) Pub Date : 2017-12-01 DOI:10.1109/ICEECCOT.2017.8284520

N. Kulkarni, V. Virulkar

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引用次数: 1

摘要

电力调节单元(PCU)在光伏(PV)系统中的应用带来了最新的技术，以管理故障穿越(FRT)运行期间的电网配电运行。本文提出了一种基于单片机的直流电压自适应控制方法。本文提出的方法是通过检测频变过程中电网电压的变化来控制直流链路电压，这有助于保持高调制比(HMR)和高频谐波的衰减。所提出的控制方法有助于重点关注非对称故障时双线频直流链路电压纹波的衰减。要求直流输入源与前端交换双线频功率纹波;在适当的地方保持直流链路电压安全。它是通过使直流输入功率随电压降与输入功率电平的比值产生波动来实现的。结果在Matlab/Simulink中进行检查。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Adaptive DC link voltage control of power conditioning unit during FRT

The use of power conditioning unit (PCU) in photovoltaic (PV) systems lead to latest technologies in order to manage operation of grid distribution during fault ride through (FRT) operation. An adaptive dc-link voltage control of PCU during FRT is proposed here. The method suggested here for controlling dc link voltage by checking any changes in grid voltage during FRT. This helps in maintaining high modulation ratio (HMR) and attenuation of high frequency harmonics. Control method suggested will help to focus on attenuation of double line frequency dc link voltage ripple at the time of unsymmetrical faults. Double line frequency power ripples need to be exchanged with front end from claiming dc input source; in place to stay with voltage of dc link safely. It is done by making fluctuation in dc input power depending on ratio of voltage drop and input power level. Results are checked in Matlab/Simulink.

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来源期刊

2017 International Conference on Electrical, Electronics, Communication, Computer, and Optimization Techniques (ICEECCOT)

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