基于剩余电量评估的微电网切负荷策略研究

发布时间：2018-04-09 06:21

本文选题：微电网　切入点：剩余电量　出处：《西安理工大学学报》2015年04期

【摘要】：对于孤岛模式下的微电网,若微电源和储能元件容量不足以保证微网内所有负荷在主电源计划停电期间的正常供电时,需要切除微网部分负荷以最大限度地保证重要负荷的供电。本文提出了微网剩余电量的概念以及一种基于剩余电量评估的微网切负荷策略,通过对孤岛运行期间微网的微电源发电量、储能装置储电量和负荷所需用电量进行实时预测估计和比较分析,按照电量平衡原则和负荷分级体系,优化确定微网内不同级别负荷的投切时刻,保证微网内最重要负荷的连续供电和其余各级负荷的断电时间最少。算例微电网的切负荷仿真结果表明了该策略的正确性和有效性。
[Abstract]:For a microgrid in islanding mode, if the capacity of the microsource and the energy storage element is not sufficient to ensure the normal supply of all the loads in the microgrid during the blackout of the main power supply plan,It is necessary to remove the partial load of the microgrid to maximize the power supply of the important load.In this paper, the concept of microgrid residual power and a microgrid load shedding strategy based on residual power evaluation are proposed.According to the principle of power balance and load classification system, the switching time of different levels of load in microgrid is optimized and determined according to the principle of power balance and load classification system.Ensure the continuous power supply of the most important load in the microgrid and the minimum outage time of the other loads.The simulation results of microgrid load shedding show that the strategy is correct and effective.
【作者单位】：西安理工大学自动化与信息工程学院;
【基金】：国家自然科学基金资助项目(51507139) 陕西省重点学科建设专项基金资助项目(5X1301) 高等学校博士学科点专项科研基金资助项目(20126118110009) 陕西省教育厅科学研究计划资助项目(2010JK756)
【分类号】：TM73

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