Converter circuit having an inverter for each phase
First Claim
1. A converter circuit for voltage maintenance in an electrical AC supply network, with the electrical AC supply network having an associated voltage source for each phase for supplying an electrical load, with the converter circuit having a respective inverter for each phase, which inverter is connected on the DC side via an energy-storage capacitor to a supply device, wherein, on the AC side, each inverter is connected in series between the associated voltage source and the electrical load in the respective phase, and wherein, on the AC side, the supply device is connected to at least two phases between the associated voltage sources and the respective inverters.
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Accused Products
Abstract
A converter circuit is specified for voltage maintenance in an electrical AC supply network (1), with the electrical AC supply network (1) having an associated voltage source (UR; US; UT) for each phase (R; S; T) for supplying an electrical load (2), with the converter circuit having a respective inverter (3) for each phase (R; S; T), which inverter (3) is connected on the DC side via an energy-storage capacitor (4) to a supply device (5). On the AC side, each inverter (3) is connected in series between the associated voltage source (UR; US; UT) and the electrical load (2) in the respective phase (R; S; T), and in that, on the AC side, the supply device (5) is connected to at least two phases (R; S; T) between the associated voltage sources (UR; US; UT) and the respective inverters (3).
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Citations
13 Claims
- 1. A converter circuit for voltage maintenance in an electrical AC supply network, with the electrical AC supply network having an associated voltage source for each phase for supplying an electrical load, with the converter circuit having a respective inverter for each phase, which inverter is connected on the DC side via an energy-storage capacitor to a supply device, wherein, on the AC side, each inverter is connected in series between the associated voltage source and the electrical load in the respective phase, and wherein, on the AC side, the supply device is connected to at least two phases between the associated voltage sources and the respective inverters.
Specification