System, method, and article of manufacture for determining parameter values associated with an electrical grid
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01R-021/00
H02J-001/00
H02M-007/00
출원번호
US-0392107
(2006-03-29)
등록번호
US-7346462
(2008-03-18)
발명자
/ 주소
Delmerico,Robert
출원인 / 주소
General Electric Company
대리인 / 주소
Agosti,Ann M.
인용정보
피인용 횟수 :
21인용 특허 :
7
초록▼
A system, method, and article of manufacture for determining parameter values associated with an electrical grid in accordance with an exemplary embodiment is provided. The electrical grid has a point of interconnection where the electrical grid is electrically coupled to a power source. The method
A system, method, and article of manufacture for determining parameter values associated with an electrical grid in accordance with an exemplary embodiment is provided. The electrical grid has a point of interconnection where the electrical grid is electrically coupled to a power source. The method includes measuring real power at the point of interconnection of the electrical grid to obtain a plurality of real power values. The method further includes measuring reactive power at the point of interconnection of the electrical grid to obtain a plurality of reactive power values. The method further includes measuring a voltage at the point of interconnection of the electrical grid to obtain a plurality of voltage values. The method further includes estimating at least one parameter value associated with the electrical grid utilizing the plurality of real power values, the plurality of reactive power values, and the plurality of voltage values, and a mathematical estimation technique.
대표청구항▼
What is claimed is: 1. A method for determining parameter values associated with an electrical grid, the electrical grid having a point of interconnection where the electrical grid is electrically coupled to a power source, the method comprising: measuring real power at the point of interconnection
What is claimed is: 1. A method for determining parameter values associated with an electrical grid, the electrical grid having a point of interconnection where the electrical grid is electrically coupled to a power source, the method comprising: measuring real power at the point of interconnection of the electrical grid to obtain a plurality of real power values; measuring reactive power at the point of interconnection of the electrical grid to obtain a plurality of reactive power values; measuring a voltage at the point of interconnection of the electrical grid to obtain a plurality of voltage values; estimating at least one parameter value associated with the electrical grid utilizing the plurality of real power values, the plurality of reactive power values, and the plurality of voltage values, and a mathematical estimation technique; and controlling operation of a wind turbine to generate electrical power to the electrical grid based on the at least one estimated parameter value. 2. The method of claim 1, wherein the at least one estimated parameter value associated with the electrical grid comprises at least one of an electrical line resistance value, an electrical line reactance value, and a grid voltage value. 3. The method of claim 1, wherein the mathematical estimation technique comprises a least-squares estimation technique. 4. A system for determining parameter values associated with an electrical grid, the electrical grid having a point of interconnection where the electrical grid is electrically coupled to a power source, the system comprising: a measurement device configured to measure real power at the point of interconnection of the electrical grid to obtain a plurality of real power values, the measurement device further configured to measure reactive power at the point of interconnection of the electrical grid to obtain a plurality of reactive power values, the measurement device further configured to measure a voltage at the point of interconnection of the electrical grid to obtain a plurality of voltage values; and a controller operably communicating with the measurement device, the controller configured to estimate at least one parameter value associated with the electrical grid utilizing the plurality of real power values, the plurality of reactive power values, and the plurality of voltage values, and a mathematical estimation technique. 5. The system of claim 4, wherein the at least one estimated parameter value associated with the electrical grid comprises at least one of an electrical line resistance value, an electrical line reactance value, and a grid voltage value. 6. The system of claim 4, wherein the mathematical estimation technique comprises a least-squares estimation technique. 7. An article of manufacture, comprising: a computer storage medium having a computer program encoded therein for determining parameters values associated with an electrical grid, the electrical grid having a point of interconnection where the electrical grid is electrically coupled to a power source, the computer storage medium comprising: code for measuring real power at the point of interconnection of the electrical grid to obtain a plurality of real power values; code for measuring reactive power at the point of interconnection of the electrical grid to obtain a plurality of reactive power values; code for measuring a voltage at the point of interconnection of the electrical grid to obtain a plurality of voltage values; and code for estimating at least one parameter value associated with the electrical grid utilizing the plurality of real power values, the plurality of reactive power values, and the plurality of voltage values, and a mathematical estimation technique. 8. The article of manufacture of claim 7, wherein the at least one estimated parameter value associated with the electrical grid comprises at least one of an electrical line resistance value, an electrical line reactance value, and a grid voltage value. 9. The article of manufacture of claim 7, wherein the mathematical estimation technique comprises a least-squares estimation technique.
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