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An approach for assessing high-penetration PV impact on distribution feeders

机译：评估高渗透光伏对配电馈线影响的方法

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摘要

The variability of solar power due to cloud shadows with high penetration levels can cause technical issues such as power fluctuation and voltage flicker in power distribution feeders. To help distribution planners better understand and predict these likely impacts on voltage quality and avoid overly conservative decisions on the amount of PV installed on a feeder, a comprehensive simulation method is needed to model and address these problems. To this end, this paper presents a simulation and analysis approach that uses a cloud shadow model to recreate the variable output power of both distributed and large centralized PVs at various locations on a feeder. Simulations are made on an actual EPRI test feeder. EPRI's OpenDSS distribution simulation program is driven through MATLAB. The feeder is monitored at all buses, and PV induced voltage quality issues are measured, including the dynamic reaction of voltage control devices. The example feeder illustrates the usefulness of the new evaluation method to address and quantify impacts of large amounts of PV systems on feeder steady-state over voltage, voltage fluctuation level and flicker, and voltage regulation device operation. Results for distributed PV show that PV lavels as high as 50% can be tolerated. (C) 2015 Elsevier B.V. All rights reserved.
机译：由于具有高渗透水平的云层阴影所致的太阳能变化会引起技术问题，例如配电馈线中的功率波动和电压闪烁。为了帮助配电计划人员更好地理解和预测这些可能对电压质量的影响，并避免对馈电线上安装的PV数量做出过分保守的决定，需要一种综合的仿真方法来建模和解决这些问题。为此，本文提出了一种仿真和分析方法，该方法使用云影模型在馈线的各个位置上重新创建分布式和大型集中式PV的可变输出功率。仿真是在实际的EPRI测试送纸器上进行的。 EPRI的OpenDSS分布仿真程序是通过MATLAB驱动的。监控所有母线上的馈线，并测量PV感应电压质量问题，包括电压控制设备的动态反应。馈线示例说明了使用新评估方法来解决和量化大量PV系统对馈线稳态过电压，电压波动水平和闪烁以及电压调节装置操作的影响的有用性。分布式PV的结果表明，PV罐最高可以容忍50％。 （C）2015 Elsevier B.V.保留所有权利。

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