Assuring voltage stability in the smart grid

With unprecedented capabilities for monitoring by synchronized sub-second measurements and processing them with widely distributed decision intelligence and providing quasi-continuous control capabilities throughout the grid wherever and whenever needed, the smart grid offers the potential to increase all voltage, dynamic and transient stability limits to a level above the relevant thermal limits. With stability thus assured, the smart grid can ultimately become as flexible as the internet. This paper presents a strategy for assuring voltage stability in the smart grid.