Multi-wind-field optimal frequency modulation method and system
A multi-wind field, optimal technology, applied in wind power generation, reducing/preventing power oscillation, AC network circuits, etc., can solve the problems of small contribution of the first frequency low point, secondary frequency drop, difficult to control parameters, etc. , to achieve the effect of reducing the communication burden and increasing the minimum frequency
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Embodiment 1
[0043] In one or more implementations, a multi-wind field optimal frequency modulation method is disclosed, referring to figure 1 , including: first, at each time t k Collect the node load power and the average wind speed of the wind field and build a prediction model. Then the SSA algorithm is used to solve the prediction model under different disturbance amplitudes, and the power reference curve of the wind field is obtained. It should be pointed out that in order to cope with load and wind speed fluctuations on a relatively long-term scale (minute or hour level), information collection and model solving should be performed continuously with the rolling of the control interval. Subsequently, the obtained optimal wind power reference curve is segmentally fitted to reduce the communication burden, and the fitted power reference curve is distributed to the wind farm controller. Finally, the wind park controller can track the power reference curve online after the disturbance ...
Embodiment 2
[0161] An optimal frequency modulation system for multiple wind farms, including:
[0162] The data acquisition module is used to collect the node load power and the average wind speed of the wind field every set time;
[0163] Prediction model building block, used to consider the prediction model of wind turbine and synchronous machine, network power flow model and stable operation constraints, and construct a prediction model;
[0164] A predictive model solving module is used to solve the predictive model under different disturbance amplitudes to obtain an optimal wind power reference curve for the wind field;
[0165] The power reference tracking module is used for segmentally fitting the wind power reference curve, and distributing the fitted power reference curve to the wind field controller, so that the wind field controller can track the power reference curve online after detecting a disturbance .
[0166] It should be noted that, the specific implementation manners ...
Embodiment 3
[0168] In one or more embodiments, a terminal device is disclosed, including a server, the server includes a memory, a processor, and a computer program stored on the memory and operable on the processor, and the processor executes the The program implements the multi-wind field optimal frequency modulation method in the first embodiment. For the sake of brevity, details are not repeated here.
[0169] The optimal frequency regulation method for multiple wind farms in Embodiment 1 can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor. The software module may be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method i...
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