Effect of power line communication on DC grid stability

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2014-12-01 DOI:10.1109/PEDES.2014.7042105

Tsegay Hailu, I. Josifovic, J. Ferriera

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引用次数: 2

Abstract

Power line communication is becoming an attractive solution for smart grid communication in terms of cost and decreasing complexity of infrastructure. It ranges from data transmission to grid management. In this paper, the use of power line communication in DC grid for control is discussed. Different approaches has been previously used to make the grid impedance time invariant for power line communication and resistive to converter noises. However, they do not consider the effect of those approaches on stability of the grid during different load conditions, especially when the grid is dominated by constant power loads. The use of decoupling inductors at each source and load in a DC grid is one of the common approaches. The stability issues in a DC grid for household application are discussed using Matlab Simulink. Resistive and constant power loads will be used for comparison. Using decoupling inductors introduces oscillation in the DC grid which may lead to system collapse depending on the value of decoupling inductors, the grid capacitance and the complexity of the DC grid.

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电力线通信对直流电网稳定性的影响

电力线通信在成本和降低基础设施复杂性方面正成为智能电网通信的一种有吸引力的解决方案。它的范围从数据传输到网格管理。本文讨论了电力线通信在直流电网控制中的应用。为了使电力线通信的网格阻抗具有时不变和抗变换器噪声的特性，已有不同的方法。然而，它们没有考虑这些方法在不同负荷条件下对电网稳定性的影响，特别是当电网以恒定负荷为主时。在直流电网的每个源和负载上使用去耦电感是常用的方法之一。利用Matlab Simulink对家用直流电网的稳定性问题进行了讨论。电阻和恒功率负载将用于比较。使用去耦电感会在直流电网中引起振荡，并可能导致系统崩溃，这取决于去耦电感的值、电网电容和直流电网的复杂性。

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

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)

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