Title: Title: Dynamical Behaviors of Sigma Delta Modulators

Speaker: Dr. C.K. Lee(李志群),Hong Kong University

Time: Wednesday, March 23, 2016, 10:00 a.m.

Venue: Room 310, Hongsheng Building(Building 30), Wushan Campus

[Report Summary]

The scientific principle of “mechanical springs” was described by the British physicist Robert Hooke in the 1660’s. Since then, there has not been any further development of the Hooke’s law in the electric regime. In this report, this technological gap is filled by the development of “electric springs.” It is discovered that such novel concept has huge potential in stabilizing future power systems with substantial penetration of intermittent renewable energy sources. The electric spring is found to be effective in regulating the mains voltage despite the fluctuation caused by the intermittent nature of wind power. Electric appliances with the electric springs embedded can be turned into a new generation of smart loads, which have their power demand following thepower generation profile. It is envisaged that electric springs, when distributed over the power grid, will offer a new form of power system stability solution that is independent of information and communication technology.