Robustness analysis of PID controller Bidirectional SEPIC/Zeta for Energy Management in DC Nanogrid Isolated System

2018 3rd International Conference on Information Technology, Information System and Electrical Engineering (ICITISEE) Pub Date : 2018-11-01 DOI:10.1109/ICITISEE.2018.8721036

F. Murdianto, M. Z. Efendi, K. Widarsono, Miftahul Azizi

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引用次数: 5

Abstract

Renewable energy is needed to reduce sources of electrical energy utilization derived from coal and fossil fuel. Photovoltaic is a component of renewable energy that used sunlight to produce electrical energy. The problem that occurs in photovoltaic is the output power that changes depending of light intensity. That problem causes the output power in the Photovoltaic to supply the load to be unstable due to changes in sunlight The solution of the problem is using the bidirectional converters. The bidirectional converter are currently widely used to store excess power in energy storage system and keep output voltage of the system on stable condition. Therefore this problem requires a good control to be applied to the bidirectional converter. The PID controller can be applied to the bidirectional converter to keep the voltage on the DC bus steady at the set point. Therefore, this paper proposed the performance of bidirectional SEPIC/Zeta converters using PID controller to solve that problem. The experiment result shows the PID controller can keep the DC bus voltage in stable condition. Average time speed to reach set point when charging mode is 1,024 ms with average error is 0,08%. On the other side average time speed to reach set point when discharging is 1,288 ms with average error is 0,6012%.

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直流纳米栅隔离系统能量管理PID控制器双向SEPIC/Zeta鲁棒性分析

需要可再生能源来减少来自煤炭和化石燃料的电能利用来源。光伏是可再生能源的一个组成部分，它利用阳光产生电能。光伏发电的问题是输出功率随光强的变化而变化。这一问题导致光伏供电负载的输出功率由于太阳光的变化而不稳定，解决这一问题的方法是采用双向变流器。双向变换器是目前广泛应用于储能系统中存储多余电能和保持系统输出电压稳定的器件。因此，这一问题需要对双向变换器进行良好的控制。PID控制器可以应用于双向变换器，以保持直流母线上的电压稳定在设定点。因此，本文提出了采用PID控制器的双向SEPIC/Zeta变换器的性能来解决这一问题。实验结果表明，PID控制器能使直流母线电压保持在稳定状态。充电模式下到达设定值的平均时间速度为1024 ms，平均误差为0.08%。放电时到达设定值的平均时间速度为1,288 ms，平均误差为0,6012%。

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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2018 3rd International Conference on Information Technology, Information System and Electrical Engineering (ICITISEE)

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