APPARATUS AND METHOD FOR OPERATING DISTRIBUTED GENERATOR IN CONNECTION WITH POWER SYSTEM
First Claim
1. An apparatus for operating a distributed generator in connection with a power system, comprising:
- an input unit which receives a parameter calculated using power system information and a voltage and a current at a point of common coupling with the distributed generator, with which the distributed generator is connected;
a calculation unit which calculates an operating power factor instruction value and an active output instruction value using the parameter and the voltage and current at the point of common coupling with the distributed generator input to the input unit; and
a control communication unit which determines and transmits the operating power factor instruction value and the active output instruction value according to the voltage at the point of common coupling with the distributed generator input to the input unit and an admissible voltage upper limit at the point of common coupling with the distributed generator to the distributed generator.
1 Assignment
0 Petitions
Accused Products
Abstract
An apparatus for operating a distributed generator in connection with a power system includes an input unit which receives a parameter calculated using power system information and a voltage and a current at a point of common coupling with the distributed generator, with which the distributed generator is connected, a calculation unit which calculates an operating power factor instruction value and an active output instruction value using the parameter and the voltage and current at the point of common coupling with the distributed generator input to the input unit, and a control communication unit which determines and transmits the operating power factor instruction value and the active output instruction value according to the voltage at the point of common coupling with the distributed generator input to the input unit and an admissible voltage upper limit at the point of common coupling with the distributed generator to the distributed generator.
-
Citations
17 Claims
-
1. An apparatus for operating a distributed generator in connection with a power system, comprising:
-
an input unit which receives a parameter calculated using power system information and a voltage and a current at a point of common coupling with the distributed generator, with which the distributed generator is connected; a calculation unit which calculates an operating power factor instruction value and an active output instruction value using the parameter and the voltage and current at the point of common coupling with the distributed generator input to the input unit; and a control communication unit which determines and transmits the operating power factor instruction value and the active output instruction value according to the voltage at the point of common coupling with the distributed generator input to the input unit and an admissible voltage upper limit at the point of common coupling with the distributed generator to the distributed generator. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. An apparatus for operating a distributed generator in connection with a power system, comprising:
-
a main control device which calculates active power of the distributed generator and a parameter with respect to an interconnection line using power system information; a local controller which calculates an operating power factor instruction value of the distributed generator and an active output instruction value of the distributed generator using the parameter calculated at the main control device and a voltage and a current at a point of common coupling with the distributed generator in which the distributed generator is connected to a distribution system; and the distributed generator which generates the active power and reactive power according to the operating power factor instruction value and the active output instruction value calculated at the local controller. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A method of operating a distributed generator in connection with a power system, comprising:
-
calculating a line impedance corresponding to a section from a point of common coupling with the distributed generator, at which the distributed generator is connected to the power system, to a substation; calculating a distributed generator operating power factor which restrains voltage fluctuations at the point of common coupling with the distributed generator using the line impedance, an active output of the distributed generator, and a reactive output of the distributed generator; and operating the distributed generator according to the distributed generator operating power factor. - View Dependent Claims (16, 17)
-
Specification