摘要
微型水力发电作为一种具有良好经济性、无污染、安装使用便捷的小型可再生能源项目而受到关注。建立了微型水力发电机组系统的完整模型,包括其弹性引水系统模型、水轮机调节系统模型和异步发电机等效模型,通过MATLAB/Simulink仿真软件研究机组在增、减负载以及发生故障时的特性。结果表明:微型水力异步发电机组系统在负载发生变化时,可以根据负载的变化调整异步发电机的输出功率,且系统的频率和电压幅值波动很小;在系统发生短路故障时,切除故障后系统能快速实现稳定。
Micro-hydropower as a small-scale renewable energy project receives widespread attention for the characteristics of good economy,pollution-free,convenient installation and use.In this paper a complete model of micro-hydropower unit system,including the flexibility diversion system,hydraulic turbine governing system and the induction generator equivalent model,by using MATLAB/Simulink simulation software researches the system characteristics when increase or decrease load and failure occurred.Research results indicated that： micro-hydropower asynchronous generator system can adjust the induction generator output power as load changes and the system frequency and voltage amplitude fluctuations are small;when short-circuit fault occurs,the system can quickly achieve stability after fault removed.
出处
《南方电网技术》
2012年第2期75-79,共5页
Southern Power System Technology
