Tracing nodal market power using proportional tree method

Market power has come to power system from economic in conjunction with deregulation. Market power problems are more complicated in an electric market than those in other markets due to the specific properties of electricity. The assessment of market power is an important aspect of electric market analysis and operation. This paper addresses nodal market power in power markets. A proportional tree method (PTM), which is used to determine the contribution of an individual generator to loads, has been applied to determine the nodal-must-run-share (NMRS). The IEEE-RTS is analyzed to illustrate the proposed technique.