| 摘要 |
<p>A wind farm automatic dynamic voltage control (AVC) system comprises: a AVC controller, multiple wind turbine control systems arranged on multiple wind turbines of the wind farm, a static reactive power compensation device (SVC), and multiple voltage transformers and current transformers arranged on wind power transmission lines, wind power assemble lines, SVC lines, high voltage buses and low voltage buses. Each wind power assemble line connects to the multiple wind turbines so as to receive the power output of the multiple wind turbines, and also connects to the low voltage buses. The AVC controller communicates with each wind turbine control system through an optical fiber network and electrically connects to the multiple voltage transformers and current transformers. The AVC controller determines the total reactive power that needs to be generated or absorbed by the wind farm, the total reactive power that can be generated or absorbed by each wind power assemble line and the total reactive power that can be generated or absorbed by each wind turbine, and sends the control signal corresponding to the reactive power that can be generated or absorbed by each wind turbine to the corresponding wind turbine control system.</p> |
