Embodiments provide a reconfigurable power converter module for a wind turbine facility adapted to supply electric power to an associated power supply grid. The reconfigurable power converter module includes a frequency converter operatively connected to filter means, wherein the frequency converter
Embodiments provide a reconfigurable power converter module for a wind turbine facility adapted to supply electric power to an associated power supply grid. The reconfigurable power converter module includes a frequency converter operatively connected to filter means, wherein the frequency converter and the filter means are mutually reconfigurable so as to suppress internal and/or external resonances or harmonics.
대표청구항▼
1. A reconfigurable power converter module for a wind turbine facility, the wind turbine facility configured to generate and supply electric power to an associated electrical load that includes a power supply grid, the power converter module comprising: a frequency converter operatively connected wi
1. A reconfigurable power converter module for a wind turbine facility, the wind turbine facility configured to generate and supply electric power to an associated electrical load that includes a power supply grid, the power converter module comprising: a frequency converter operatively connected with one or more filters having filter characteristics dependent on an amount of the electrical load,wherein the power converter module is configured to modify a switching frequency of the frequency converter responsive to a change in one or more of the filter characteristics,wherein the power converter module is further configured to operate the frequency converter: at one or more first switching frequencies for values of the electrical load less than a nominal load value of the power converter module, andat a plurality of second switching frequencies for values of the electrical load between the nominal load value and a first threshold load value that is greater than the nominal load value, wherein the second switching frequencies decrease linearly from a nominal switching frequency corresponding to the nominal load value to a third switching frequency corresponding to the first threshold load value. 2. The power converter module of claim 1, wherein the change in one or more filter characteristics comprises a change in a filter impedance. 3. The power converter module of claim 1, wherein the power converter module is configured to modify the switching frequency to approximately match the load-dependent characteristics of the one or more filters. 4. The power converter module of claim 3, wherein the load-dependent characteristics include a filter impedance. 5. The power converter module of claim 1, wherein the one or more filters includes one or more active filters, each active filter having a respective switching frequency greater than the switching frequency of the frequency converter. 6. The power converter module of claim 5, wherein the one or more active filters comprise voltage source converters. 7. The power converter module of claim 1, wherein the one or more first switching frequencies includes one constant frequency. 8. The power converter module of claim 1, wherein the power converter module is further configured to shut down for values of the electrical load greater than the first threshold value. 9. The power converter module of claim 1, wherein the frequency converter includes an AC/AC converter comprising a rectifier, an inverter, and an intermediate DC circuit. 10. The power converter module of claim 1, wherein the power converter module is configured to modify the switching frequency to compensate for degradation of one or more components of the wind turbine facility in order to prevent resonances caused by the degraded one or more components. 11. The power converter module of claim 1, wherein the one or more first switching frequencies increase linearly for values of the electrical load less than a second threshold load value. 12. The power converter module of claim 11, wherein the second threshold load value is the nominal load value. 13. The power converter module of claim 11, wherein the second threshold load value is less than the nominal load value, and wherein the one or more first switching frequencies further includes a constant frequency for values of the electrical load between the second threshold load value and the nominal load value. 14. The power converter module of claim 1, wherein the first threshold load value is 125% of the nominal load value. 15. A wind turbine configured to generate and supply electric power to an associated electrical load that includes a power supply grid, the wind turbine comprising: a reconfigurable power converter module that includes: a frequency converter operatively connected to one or more filters having filter characteristics dependent on an amount of the electrical load,wherein the power converter module is configured to modify a switching frequency of the frequency converter responsive to a change in one or more of the filter characteristics,wherein the power converter module is further configured to operate the frequency converter: at one or more first switching frequencies for values of the electrical load less than a nominal load value of the power converter module, andat a plurality of second switching frequencies for values of the electrical load between the nominal load value and a first threshold load value that is greater than the nominal load value, wherein the second switching frequencies decrease linearly from a nominal switching frequency corresponding to the nominal load value to a third switching frequency corresponding to the first threshold load value. 16. A wind turbine plant comprising a plurality of wind turbines according to claim 15. 17. A method of reconfiguring a power converter module for a wind turbine facility configured to generate and supply electric power to an associated electrical load that includes a power supply grid, wherein the power converter module includes a frequency converter operatively connected with one or more filters having filter characteristics dependent on an amount of the electrical load, the method comprising: modifying, responsive to a load-related impedance change, a switching frequency of the frequency converter,wherein the power converter module is configured to operate the frequency converter: at one or more first switching frequencies for values of the electrical load less than a nominal load value of the power converter, andat a plurality of second switching frequencies for values of the electrical load between the nominal load value and a first threshold load value that is greater than the nominal load value, wherein the second switching frequencies decrease linearly from a nominal switching frequency corresponding to the nominal load value to a third switching frequency corresponding to the first threshold load value. 18. The method of claim 17, wherein the load-related impedance change occurs in the one or more filters. 19. The method of claim 17, wherein the load-related impedance change occurs in a grid transformer coupled to the power converter module. 20. The method of claim 17, wherein the load-related impedance change occurs in the power supply grid.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (19)
Kanke Atsushi (Hitachi JPX) Marumoto Katsuji (Hitachi JPX) Mashino Keiichi (Katsuta JPX) Maeda Yuuji (Hitachiota JPX) Masumoto Shouju (Hitachiota JPX) Takahashi Naoyuki (Katsuta JPX) Kokubun Shuuichi, Control device for battery charging AC generator used in motor vehicle.
Rivas, Gregorio; Garmendia, Iker; Elorriaga, Josu; Mayor, Jesus; Perez Barbachano, Javier; Sole, David; Acedo, Jorge, Low voltage ride through system for a variable speed wind turbine having an exciter machine and a power converter not connected to the grid.
D'Atre,John Douglas; Klodowski,Anthony Michael; Ritter,Allen Michael; Smith,David; Wagoner,Robert Gregory; Garces,Luis Jose; Luetze,Henning, System and method for power control in wind turbines.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.