Assembly for converting an input AC voltage to an output AC voltage

摘要

An assembly for converting an assembly input AC voltage to an assembly output AC voltage may include: plural converters, each including a rectifier stage for rectifying an input AC voltage to a DC voltage, the rectifier including: first and second input terminals between which the input AC voltage is applied; first and second thyristors connected in series, wherein the first input terminal is connected between the first and second thyristors; first and second diodes connected in series, wherein the second input terminal is connected between the first and second diodes; and first and second output terminals between which the DC voltage is achieved, wherein the first thyristor and the first diode are connected to the first output terminal, and the second thyristor and the second diode are at least indirectly connected to the second output terminal.

主权项

1. An assembly for converting an assembly input AC voltage to an assembly output AC voltage, the assembly comprising:
a primary wire winding to which the assembly input AC voltage is applied; a plurality of converters, each configured to convert an input AC voltage to an output AC voltage, each converter comprising: a rectifier stage, wherein the input AC voltage is applied between a first input terminal and a second input terminal of the rectifier stage; a capacitor connected between a first output terminal and a second output terminal of the rectifier stage; and a converter stage configured to convert a DC voltage between the first output terminal and the second output terminal of the rectifier stage to the output AC voltage between converter output terminals, wherein each rectifier stage is configured to rectify the input AC voltage to the DC voltage, each rectifier stage comprising: the first input terminal and the second input terminal between which the input AC voltage is applied; a first thyristor; a second thyristor connected in series with the first thyristor, wherein the first input terminal is connected between the first thyristor and the second thyristor; a first diode; a second diode connected in series with the first diode, wherein the second input terminal is connected between the first diode and the second diode; and the first output terminal and the second output terminal between which the DC voltage is achieved, wherein the first thyristor and the first diode are connected to the first output terminal, and the second thyristor and the second diode are directly or indirectly connected to the second output terminal, wherein each of the plurality of converters has a secondary wire winding connected to the first input terminal of the rectifier stage in the converter and the second input terminal of the rectifier stage in the converter, wherein each secondary wire winding is inductively coupled to the primary wire winding, wherein the converter output terminals of the plurality of converters are connected in series to achieve the assembly output AC voltage, and wherein the thyristors of the rectifier stage in each converter are configured to isolate that converter in response to a failure associated with that converter.