Magnetically controllable throttle for reactive power compensation having capacitively connected auxiliary windings

A device for reactive power compensation in a high-voltage grid having at least one phase conductor, the device comprising:

• at least one high-voltage terminal configured for connecting with the at least one phase conductor;
• core sections including a first core section and a second core section being elements of a closed magnetic circuit;
• high-voltage windings including a first high-voltage winding enclosing said first core section and a second high-voltage winding enclosing said second core section and connected in parallel with said first high-voltage winding;
• at least one saturation switching branch configured for a saturation of said core sections and having actuatable power semiconductor switches;
• a controller for actuating said actuatable power semiconductor switches;
• said first high-voltage winding and said second high-voltage winding each having a high-voltage end connected to said at least one high-voltage terminal and, a low-voltage side connected to said at least one saturation switching branch;
• at least one capacitively acting component having capacitors;
• auxiliary windings inductively coupled to said high-voltage windings, said auxiliary windings being interconnected with said at least one capacitively acting component, said auxiliary windings being constituted in a delta-connected configuration;
• and
• a potential point between two of said auxiliary windings is connected to one pole of a capacitor of said capacitors.

A device for reactive power compensation in a high-voltage grid having at least one phase conductor, the device comprising:

• at least one high-voltage terminal configured for connecting with the at least one phase conductor;
• core sections including a first core section and a second core section being elements of a closed magnetic circuit;
• high-voltage windings including a first high-voltage winding enclosing said first core section and a second high-voltage winding enclosing said second core section and connected in parallel with said first high-voltage winding;
• at least one saturation switching branch configured for a saturation of said core sections and having actuatable power semiconductor switches;
• a controller for actuating said actuatable power semiconductor switches;
• said first high-voltage winding and said second high-voltage winding each having a high-voltage end connected to said at least one high-voltage terminal and, a low-voltage side connected to said at least one saturation switching branch;
• at least one capacitively acting component having capacitors;
• auxiliary windings inductively coupled to said high-voltage windings, said auxiliary windings being interconnected with said at least one capacitively acting component, said auxiliary windings being constituted in a delta-connected configuration, and each potential point between two of said auxiliary windings is connected via a capacitor of said capacitors to a capacitor neutral point.

A device for reactive power compensation in a high-voltage grid having at least one phase conductor, the device comprising:

• at least one high-voltage terminal configured for connecting with the at least one phase conductor;
• core sections including a first core section and a second core section being elements of a closed magnetic circuit;
• high-voltage windings including a first high-voltage winding enclosing said first core section and a second high-voltage winding enclosing said second core section and connected in parallel with said first high-voltage winding;
• at least one saturation switching branch configured for a saturation of said core sections and having actuatable power semiconductor switches;
• a controller for actuating said actuatable power semiconductor switches;
• said first high-voltage winding and said second high-voltage winding each having a high-voltage end connected to said at least one high-voltage terminal and, a low-voltage side connected to said at least one saturation switching branch;
• at least one capacitively acting component having capacitors;
• auxiliary windings inductively coupled to said high-voltage windings, said auxiliary windings being interconnected with said at least one capacitively acting component, said auxiliary windings being connected to one another to constitute an auxiliary winding neutral point and, at a side thereof which is averted from said auxiliary winding neutral point, said auxiliary windings are connected to one pole of a capacitor of said capacitors.

A device for reactive power compensation in a high-voltage grid having at least one phase conductor, the device comprising:

• at least one high-voltage terminal configured for connecting with the at least one phase conductor;
• core sections including a first core section and a second core section being elements of a closed magnetic circuit;
• high-voltage windings including a first high-voltage winding enclosing said first core section and a second high-voltage winding enclosing said second core section and connected in parallel with said first high-voltage winding;
• at least one saturation switching branch configured for a saturation of said core sections and having actuatable power semiconductor switches;
• a controller for actuating said actuatable power semiconductor switches;
• said first high-voltage winding and said second high-voltage winding each having a high-voltage end connected to said at least one high-voltage terminal and, a low-voltage side connected to said at least one saturation switching branch;
• at least one capacitively acting component having capacitors;
• auxiliary windings inductively coupled to said high-voltage windings, said auxiliary windings being interconnected with said at least one capacitively acting component, said auxiliary windings being mutually interconnected to constitute an auxiliary winding neutral point and, at their side thereof which is averted from said auxiliary winding neutral point, are connected to one another via a capacitor of said capacitors.