Applications of Common Information Model and Feeder Voltage Sensor to High-penetration Photovoltaic Systems

In this study, we design and install a transformer terminal unit (TTU) with a voltage sensor and apply data exchange technologies using a common information model (CIM) to measure the voltages at the ends of distribution feeders. The object-oriented CIM is used to transfer the facilities of the distribution mapping management system to a class represented by the relationship between association, aggregation, and inheritance. We propose a simple object access protocol (SOAP)-based architecture to improve the reliability and security of the data transfer. The proposed CIM is applied to the data transfer of the TTU to monitor the voltages at the ends of the feeders and to achieve supervisory control and data acquisition of the facilities in distribution systems with high-penetration photovoltaic power.