COMPARISON OF PERFORMANCE INDEXES FOR DETECTION OF PROXIMITY TO VOLTAGE COLLAPSE

The paper proposes a new test function to be used in an existent perfo rmance index for detection of proximity to a static voltage collapse p oint. This test function is based on a reduction of the load flow Jaco bian with respect to the critical bus of a system. The test function i s compared with known singular values and eigenvalues indices, and wit h other previously proposed test functions. A thorough analysis of the similarities, advantages, and disadvantages of all these indices and test functions is presented. The techniques are tested and compared on the IEEE 300 bus test system, showing the effect of system characteri stics and limits in these indices and functions.