论文标题
AC-DC混合动力汽车的DC BUS的灵活控制策略与电动汽车
Flexible Control Strategy of DC Bus for AC-DC Hybrid Microgrid with Electric Vehicle
论文作者
论文摘要
作为一种新型的微电网结构，AC-DC混合微电网可以根据光伏电源有效消耗新的能量分布发电机，该发电机非常适合带有电动汽车作为主要负载的微电网系统。与AC微电网不同，AC-DC混合微电网的DC总线是低惯性系统。如何改善AC-DC混合微电网系统的DC BUS惯性以及DC总线电压的稳定性变得尤为重要。基于此，本文提出了一种基于多节点下垂的微电网总线电压的灵活控制策略的方法。通过考虑电力电子设备（例如储能和电动汽车充电设备）的P / U下垂特性，可以全面考虑不同类型的分布式发电机。电源储备率和能源储备速率通过曲线偏移和其他调整方法改善了直流惯性，这有效地保证了微电网系统电压的稳定性。通过构建MATLAB / SIMULIK模拟系统来验证所提出方法的有效性。
As a new type of microgrid structure, AC-DC hybrid microgrid can efficiently consume new energy distributed generator based on photovoltaics, which is very suitable for microgrid systems with electric vehicles as the main load. Unlike the AC microgrid, the DC bus of the AC-DC hybrid microgrid is a low-inertia system. How to improve the DC bus inertia of the AC-DC hybrid microgrid system and the stability of the DC bus voltage become particularly important. Based on this, this paper presents a method for flexible control strategy of microgrid bus voltage based on multi-node droop. By considering the P / U droop characteristics of DC ports of power electronic equipment such as energy storage and electric vehicle charging-discharging equipment, different types of distributed generator are comprehensively considered. The power reserve rate and energy reserve rate, through curve shift and other adjustment methods, improve the DC bus inertia, which effectively guarantees the stability of the microgrid system voltage. The validity of the proposed method is verified by building a matlab / simulik simulation system.
