Electromagnetic Design Considerations for Fast Acting Controllers
With very fast controllers now being applied to electric power and distribution systems, interaction between controllers is always a possibility. A simple method for testing the sensitivity for controllers to interact was developed through the concept of “Global Gain Margin” analysis:
D.A. Woodford, “Electromagnetic Design Considerations for Fast Acting Controllers,” IEEE Transactions on Power Delivery, Vol. II, No. 3, July 23-27, 1995, pp 1515-1521.