Representation of short-term open access transactions using common information model

Short term open access (STOA) transactions are one of the important mechanisms for exchange of power on Indian national grid. Currently, STOA is operated by five regional load despatch centers, leading to differences in representation of STOA transaction information. This paper presents the modeling of STOA using common information model (CIM). Use-case addressed includes, generation of a CIM/XML report which presents the STOA data for a given utility. The proposed system consists of five components namely, data acquisition, data conversion to CIM, data validation, STOA modeling in CIM and data visualization. The STOA transactions of the Western and Southern regions of India for the year 2011 have been used for building the database. The system is developed using python programming language, enterprise architect, and CIMTool for validation. The output generated creates a better understanding of market situation and thus is useful for the traders, generation utilities, discoms and system operators.