US 12,706,454 B2 · Short-circuit current control in power systems

Abstract

Example methods and systems for short-circuit current control in power systems are disclosed. One example method includes determining a respective maximum short-circuit current (SCC) value at each piece of equipment in the power system. A respective SCC rating of each piece of the equipment in the power system is compared with the respective maximum SCC value at the piece of the equipment. A target reactance of a variable series reactor in a mobile short-circuit control unit (MSCCU) to be installed between two points of the power system is determined in response to the maximum SCC values at one or more pieces of the equipment exceeding the SCC ratings of the one or more pieces of the equipment. A reactance of the variable series reactor is adjusted to the target reactance. The MSCCU is installed between the two points of the power system.

Claims12

Dependent claims

A method of short-circuit current control in a power system, the method comprising:

determining a respective maximum short-circuit current (SCC) value at each piece of equipment in the power system;
comparing a respective SCC rating of each piece of the equipment in the power system with the respective maximum SCC value at the piece of the equipment;
in response to the maximum SCC values at one or more pieces of the equipment exceeding the SCC ratings of the one or more pieces of the equipment, determining a target reactance of a variable series reactor in a mobile short-circuit control unit to be installed between two points of the power system;
adjusting a reactance of the variable series reactor to the target reactance;
installing the mobile short-circuit control unit between the two points of the power system;
and
wherein adjusting the reactance of the variable series reactor to the target reactance comprises selecting a tap position from a plurality of tap positions of the variable series reactor in the mobile short-circuit control unit, and wherein the tap position corresponds to the reactance of the variable series reactor that is equal to or larger than the target reactance.

4 more elements

A method of short-circuit current control in a power system, the method comprising:

determining a respective maximum short-circuit current (SCC) value at each piece of equipment in the power system;
comparing a respective SCC rating of each piece of the equipment in the power system with the respective maximum SCC value at the piece of the equipment;
in response to the maximum SCC values at one or more pieces of the equipment exceeding the SCC ratings of the one or more pieces of the equipment, determining a target reactance of a variable series reactor in a mobile short-circuit control unit to be installed between two points of the power system;
adjusting a reactance of the variable series reactor to the target reactance;
installing the mobile short-circuit control unit between the two points of the power system;
and
after installing the mobile short-circuit control unit between the two points of the power system, connecting the two points of the power system using the variable series reactor in the mobile short-circuit control unit;
wherein connecting the two points of the power system using the variable series reactor comprises sending, at a first time, a first signal to the mobile short-circuit control unit, wherein the first signal indicates to connect the two points of the power system using the variable series reactor.

5 more elements

A method of short-circuit current control in a power system, the method comprising:

determining a respective maximum short-circuit current (SCC) value at each piece of equipment in the power system;
comparing a respective SCC rating of each piece of the equipment in the power system with the respective maximum SCC value at the piece of the equipment;
in response to the maximum SCC values at one or more pieces of the equipment exceeding the SCC ratings of the one or more pieces of the equipment, determining a target reactance of a variable series reactor in a mobile short-circuit control unit to be installed between two points of the power system;
adjusting a reactance of the variable series reactor to the target reactance;
installing the mobile short-circuit control unit between the two points of the power system;
and
after installing the mobile short-circuit control unit between the two points of the power system, connecting the two points of the power system using a bypass circuit breaker in the mobile short-circuit control unit.

4 more elements

Dependencies are inferred from the claim text.

Short-circuit current control in power systems

Life of this patent

Short-circuit current control in power systems

Life of this patent

Abstract

Claims12