这是IEEE 9总线系统的“传输”。该示例附带一个技术描述，描述所做的工作和所使用的数据。它也验证了PSSE的powerflow结果。(This is the IEEE 9 Bus System for "transmission". The example comes with a technical write up that describes the work done and the data used. It has also been validated against PSSE powerflow results.)