摘要
随着经济的发展,需要不断的增加输电走廊,因此使电力系统的规模越来越庞大。由于传输功率的日益增大,使电力系统节点电压的安全稳定监视和控制的难度越来越大,对此,提出了一种新的简化电网方法,以及对简化电网节点电压进行监视和预测的简便方法。该方法是基于数据库中存储的系统历史运行数据,首先采用传统节点电压方程推导得到节点电压与功率之间的控制模型;然后,基于B系数法对电网中的支路损耗进行建模,从而可以进一步得到简化电网的节点电压方程;最后,对简化电网节点电压方程进行推导,从而可以获得简化电网节点电压的预测模型。通过IEEE10母线系统的仿真测试,表明了所提方法的有效性。
Along with the economic development, the power transmission corridors must be needed. So the scale of the power system is becoming larger and larger. Because of the enlargement of the active power transmission, monitoring and predicting of the bus voltage is becoming more and more difficult. A new method for the reduced grid is presented and the monitoring and controlling method of the reduced grid bus voltage is inferred. The method is based on the database which stores data of the power system. Firstly, the equation of bus voltage is inferred to get the relation between voltage and power. Secondly, the line of the power gird is modelled based on the B coefficient, so the node voltage equation of the reduced grid can be got. Lastly, the node voltage equation is further deduced and the forecasting model of node voltage can be got. Taking the IEEE10 bus system as an example, experimental results verify the effectiveness of the proposed method.
出处
《控制工程》
CSCD
北大核心
2016年第6期875-879,共5页
Control Engineering of China
基金
基于<电工技术>课程理实一体的教学方法的研究
关键词
简化电网
电压
预测控制
B系数法
Reduced power grid
voltage
forecast and control
B coefficient method
