AC VOLTAGE REGULATOR Russian patent published in 2022 - IPC H02M5/257 

FIELD: electrical engineering.

SUBSTANCE: present invention relates to the field of electrical engineering and can be used to convert alternating voltage into variable voltage regulated by value, for example, when creating soft-start systems, in various installations using an alternating current electric drive, as well as a reactive power compensator. This is achieved by the fact that the AC voltage regulator contains capacitors connected in series, a group of controlled bidirectional switches and a load. A group of managed bidirectional keys consists of managed bidirectional keys and is divided into two subgroups. The first subgroup of controlled bidirectional keys is connected to the terminals of the capacitors with one pin, starting from the first, and the second subgroup of controlled bidirectional keys is connected in series between the remaining terminals of the first subgroup of controlled bidirectional keys parallel to the capacitors. The load is connected by one pin to the first node of the connection of the first subgroup of controlled bidirectional keys with the second subgroup of controlled bidirectional keys, and by the second pin is connected to the last node of the connection of the first subgroup of controlled bidirectional keys with the second subgroup of controlled bidirectional keys. The AC voltage regulator uses either thyristors, or transistors, or triacs are used as controlled bidirectional keys.

EFFECT: increase in the reliability of the AC voltage regulator by introducing the possibility of switching between capacitors within the regulation of one voltage level, the possibility of balancing the voltage on the capacitors of the regulator, the possibility of reserving used capacitors.

1 cl, 4 dwg