the IEEE Bus systems built in pscad software , the included model is 39 ieee buses test system. IEEE bus systems are used by researchers to implement new ideas and concepts. This technical note describes the details of the IEEE 39-bus system. The system consists of loads, transmission lines, and generators.-the IEEE Bus systems　built in pscad software , the included model is 39 ieee buses test system. IEEE bus systems are used by researchers to implement new ideas and concepts. This technical note describes the details of the IEEE 39-bus system. The system consists of loads, transmission lines, and generators.