Dynamic braking system for an electric power system and method of operating the same
First Claim
1. A dynamic braking system for an electric power system including at least one electrical conductor, said dynamic braking system comprising:
- a switching device coupled to the electrical conductor, said switching device configured to open and close with a plurality of predetermined frequencies;
an inductive device coupled to said switching device, wherein power losses of said inductive device are at least partially a function of the plurality of predetermined frequencies; and
,a dynamic braking controller coupled to said switching device, said dynamic braking controller configured to open and close said switching device with at least one of the predetermined frequencies to dissipate electric power from the electrical conductor at a predetermined rate by regulating the power losses of said inductive device as a function of the predetermined frequencies.
2 Assignments
0 Petitions
Accused Products
Abstract
A dynamic braking system for an electric power system includes a switching device coupled to an electrical conductor. The switching device is configured to open and close with a plurality of predetermined frequencies. The dynamic braking system also includes an inductive device coupled to the switching device. The power losses of the inductive device are at least partially a function of the plurality of predetermined frequencies. The dynamic braking system further includes a dynamic braking controller coupled to the switching device. The dynamic braking controller is configured to open and close the switching device with at least one of the predetermined frequencies to dissipate electric power from the electrical conductor at a predetermined rate by regulating the power losses of the inductive device as a function of the predetermined frequencies.
-
Citations
20 Claims
-
1. A dynamic braking system for an electric power system including at least one electrical conductor, said dynamic braking system comprising:
-
a switching device coupled to the electrical conductor, said switching device configured to open and close with a plurality of predetermined frequencies; an inductive device coupled to said switching device, wherein power losses of said inductive device are at least partially a function of the plurality of predetermined frequencies; and
,a dynamic braking controller coupled to said switching device, said dynamic braking controller configured to open and close said switching device with at least one of the predetermined frequencies to dissipate electric power from the electrical conductor at a predetermined rate by regulating the power losses of said inductive device as a function of the predetermined frequencies. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. An electric power system comprising:
-
a direct current (DC) bus; and
,a dynamic braking system coupled to said DC bus, said dynamic braking system comprising; an alternating current (AC) bus having power losses that are at least partially a function of a frequency of electric power transmitted therethrough; a switching device coupled to each of said DC bus and said AC bus, said switching device configured to open and close with a plurality of predetermined frequencies; and
,a dynamic braking controller coupled to said switching device, said dynamic braking controller configured to open and close the switching device with at least one of the predetermined frequencies to dissipate electric power from said DC bus at a predetermined rate by regulating the power losses of said AC bus as a function of the predetermined frequencies. - View Dependent Claims (8, 9, 10, 11, 12, 13)
-
-
14. A method for controlling an electric power system during electrical fault conditions, the electric power system including an electric power generating device, an electric power converter coupled to the electric power generating device, the electric power converter including a switching device, the electric power converter coupled to an electric power grid through an inductive device, and a virtual dynamic braking system including a virtual dynamic braking controller, said method comprising:
-
operating the switching device at a first frequency; monitoring at least one electrical condition of the electric power system; and
,operating the switching device at a second frequency that is different from the first frequency as a function of a value of the monitored electrical condition, thereby regulating power losses of the inductive device and dissipating electric power through the switching device and the inductive device at a predetermined rate. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
Specification