Measurement design of data exchange for distributed multi-utility operation

With power market deregulation, member companies cooperate to share one whole grid system and try to achieve their own economic goals. This paper focuses on how to improve the state estimation result of member companies or ISO by exchanging raw or estimated data with neighboring member companies/ISO. The concept of bus redundancy descriptor (BRD) is developed based on critical measurement set. BRD and leverage points are used as criteria to evaluate the quality of measurement systems. Accordingly, based on BRD a heuristic algorithm for measurement design under distributed multi-utility operation is presented to search for possible beneficial data exchange schemes. Numerical results verify that every member company, including ISO, benefits from mutual data exchange when some principles of design are carefully applied.