Building block for series connection in high power converter
First Claim
Patent Images
1. A building block for series connection in high power voltage source converters, comprising:
- a first semiconductor switch with anti-parallel diode, a reactor, a second semiconductor switch with anti-parallel diode, said first semiconductor switch, said reactor, and said second semiconductor switch being connected in series, a first clamp having a voltage limiting function, a first reset diode, said first clamp and said first reset diode being connected in series to define a first series circuit, said first series circuit connected in parallel with said first semiconductor switch, a second clamp having a voltage limiting function, a second reset diode, said second clamp and said second reset diode being connected in series to define a second series circuit, said second series circuit being connected in parallel with said second semiconductor switch, and an energy management element connected between said first and second clamps.
1 Assignment
0 Petitions
Accused Products
Abstract
A converter includes building blocks, each building block being a switching unit. Each building block must be able to receive high power at an elevated switching frequency with low power dissipation in semiconductor switches. The building block includes semiconductor switches and a reactor connected in series, and a series connection of a voltage clamp and a diode. The series connection is connected in parallel to each of the semiconductor switches. The clamps are arranged in such a way that all clamping and voltage control is realised by a clamp connected in parallel with the corresponding semiconductor switch.
9 Citations
20 Claims
-
1. A building block for series connection in high power voltage source converters, comprising:
-
a first semiconductor switch with anti-parallel diode, a reactor, a second semiconductor switch with anti-parallel diode, said first semiconductor switch, said reactor, and said second semiconductor switch being connected in series, a first clamp having a voltage limiting function, a first reset diode, said first clamp and said first reset diode being connected in series to define a first series circuit, said first series circuit connected in parallel with said first semiconductor switch, a second clamp having a voltage limiting function, a second reset diode, said second clamp and said second reset diode being connected in series to define a second series circuit, said second series circuit being connected in parallel with said second semiconductor switch, and an energy management element connected between said first and second clamps. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification