Dynamic Power Injection for Solar PV Constant Power Generation

2019 6th International Conference on Information Technology, Computer and Electrical Engineering (ICITACEE) Pub Date : 2019-09-01 DOI:10.1109/ICITACEE.2019.8904141

M. Kuncoro, Rudi Darussalam, Chandra B. Sukmono, I. Garniwa

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引用次数: 3

Abstract

The utilization of solar energy for electricity generation is increasing. But, because of the factor of the intermittent irradiance and ambient temperature so that the energy produced fluctuates and unstable. For PV connected to the grid, these power fluctuations affect system stability and frequency. To overcome this problem, several methods for PV power stabilization have been developed. One of them is the Constant Power Generation, where PV output power is limited to a certain power value so it can reduce PV power fluctuations. In this paper, the Dynamic Power Injection method is proposed as modification of the CPG method with energy storage batteries. In principle DPI similar with the CPG method that determines the power limit, but DPI operation include the active power management by charging and discharging action. The battery is using as energy storage when Power PV greater Power limit. On the other hand battery as an energy source for active power injection at Power PV less than Power limit. Thus the output power in each condition can be maintained as Power PV equal with P limit. In this research, DPI modules are built on Arduino controller-based and monitored with the thingspeak webserver. The experimental results of DPI can stabilize PV power fluctuation at it's setting power with an error of 5% and a 15-second time delay.

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太阳能光伏恒功率发电动态注入技术

利用太阳能发电的情况正在增加。但是，由于辐照度的间歇性和环境温度的因素，使所产生的能量波动和不稳定。对于并网的光伏电站，这些功率波动会影响系统的稳定性和频率。为了克服这一问题，人们开发了几种光伏电力稳定的方法。其中一种是恒功率发电，将光伏发电的输出功率限制在一定的功率值内，以减少光伏发电功率的波动。本文提出了基于储能电池的CPG方法的改进，即动态功率注入方法。DPI在原理上与CPG方法相似，确定功率限制，但DPI操作包括通过充电和放电动作进行有源功率管理。当光伏发电受到更大的功率限制时，电池被用作储能。另一方面，电池作为能量源，在光伏发电功率小于功率限制时进行有功功率注入。因此，每种情况下的输出功率都可以保持为power PV等于P极限。在本研究中，DPI模块基于Arduino控制器构建，并通过thingspeak web服务器进行监控。实验结果表明，DPI可以将光伏功率波动稳定在设定功率，误差为5%，延时为15秒。

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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来源期刊

2019 6th International Conference on Information Technology, Computer and Electrical Engineering (ICITACEE)

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