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| 基于Matlab的微电网孤岛运行仿真研究 |
| Simulation on islanded operation of micro-grid with Matlab |
| 投稿时间：2014-09-24 |
| DOI：10.13259/j.cnki.eri.2016.04.010 |
| 中文关键词: 微电网 孤岛运行 分布式电源 仿真 |
| 英文关键词:micro-grid islanded operation distributed generation simulation |
| 基金项目: |
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| 摘要点击次数: 3544 |
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| 中文摘要: |
| 微电网技术是21世纪电网发展的一个重要方向.这种全新的供配电形式，不仅更适合于新能源接入，而且人性化地赋予了电力用户更多的选择和管理空间.利用Matlab/Simulink软件模拟搭建了一个由风能和水能提供电源的微电网仿真平台，并对平台在遇到主网故障时的两种运行模式（关闭/开启孤岛运行）进行了仿真.结果表明，关闭孤岛运行模式时，微电网将在大电网故障时承受长时间及大幅值的功率与电压波动；开启孤岛运行模式时，微电网的功率与电压波动将有所减弱，能较好保证微电网的供电稳定和设备安全.研究表明，微电网的孤岛运行机制是有效且必要的. |
| 英文摘要: |
| Micro-grid technology is an important direction of the smart grid development in the twenty-first century,which is suitable for the connection of renewable energy and can provide more selections for power users.A model of micro-grid system powered by wind and hydropower was built using Matlab/Simulink to simulate two modes of isolation and connection under the circumstance of public power grid failure.When the islanded operation mode was closed,the micro-grid could bear the considerable fluctuations of power and voltage for a long time in the conditions of public power grid failure.When the islanded operation mode was open,the fluctuations of power and voltage in the micro-grid reduced to keep the power supply stable and keep the equipment safe.Results showed that the islanded operation mode of micro-grid was effective and necessary. |
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