冲击性负荷对热电厂孤网动态稳定性研究

Study on impact load on dynamic stabilization of thermal power for isolated network operation

对某大型钢铁公司自备热电厂供配电系统正常运行期间的测试数据进行分析,结合系统供配电结构及运行方式建立系统SIMULINK仿真模型,研究了该配电系统孤网动态运行时输入功率不平衡导致电网的大幅度波动问题。周期性大容量的冲击负荷会引起系统频率的周期振荡,为此类供配电系统孤网运行可行性分析及存在问题评估提供可靠的理论支撑。

Combining with the system power supply structure,operation mode and analyzins,the test data of plant power supply and distribution system during normal operation for a large steel corp owned thermal power was founded,the fluctuations in power grid caused by input power imbalance of this system in islanded power network operation were researched.Periodic mass impact load will cause the system frequency oscillation.It provides reliable theoretical support for this kind of power supply and distribution system of isolated operation feasibility analysis and existence problem assessment.