Energy production loss due to high wind hysteresis control

A computer-readable storage medium comprising instructions which, when executed by a computer, cause the computer to perform an operation for predicting energy production losses associated with high wind hysteresis control of a wind turbine generator, the high wind hysteresis control comprising, when a wind speed exceeds an upper hysteresis threshold value, shutting off the wind turbine generator until the wind speed reaches a lower hysteresis threshold value, the operation comprising:

• (a) determining a distribution of wind speeds for a site of the wind turbine generator;
• (b) determining a high wind hysteresis band for the wind turbine generator that comprises a range of wind speed values between the upper hysteresis threshold value and the lower hysteresis threshold value;
• and
• (c) predicting energy production loss due to the high wind hysteresis control, wherein the prediction includes:
• (c-1) determining a high wind factor corresponding to a probability that the wind speeds in the hysteresis band occur during a period when the wind turbine generator is shut off by the high wind hysteresis control, wherein determining the high wind factor comprises:
• determining a ratio corresponding to a number of wind speeds entering the hysteresis band from above the upper hysteresis threshold value to a total number of wind speeds entering the hysteresis band from above the upper hysteresis threshold value and below the lower hysteresis threshold value;
• (c-2) determining, based on the distribution of wind speeds and power data associated with the wind turbine generator, an energy value associated with the wind speeds falling within the hysteresis band over a predetermined time period;
• and
• (c-3) determining the energy production loss by applying the high wind factor to the energy value.

A system, comprising:

• a memory containing instructions;
• and
• one or more processors which, when programmed with the instructions, are configured to perform an operation for predicting energy production losses associated with high wind hysteresis control of a wind turbine generator, the high wind hysteresis control comprising, when a wind speed exceeds an upper hysteresis threshold value, shutting off the wind turbine generator until the wind speed reaches a lower hysteresis threshold value, the operation comprising:
• (a) determining a distribution of wind speeds for a site of the wind turbine generator;
• (b) determining a high wind hysteresis band for the wind turbine generator that comprises a range of wind speed values between the upper hysteresis threshold value and the lower hysteresis threshold value;
• and
• (c) predicting energy production loss due to the high wind hysteresis control, wherein the prediction includes:
• (c-1) determining a high wind factor corresponding to a probability that the wind speeds in the hysteresis band occur during a period when the wind turbine generator is shut off by the high wind hysteresis control, wherein determining the high wind factor comprises:
• determining a ratio corresponding to a number of wind speeds entering the hysteresis band from above the upper hysteresis threshold value to a total number of wind speeds entering the hysteresis band from above the upper hysteresis threshold value and below the lower hysteresis threshold value;
• (c-2) determining, based on the distribution of wind speeds and power data associated with the wind turbine generator, an energy value associated with the wind speeds falling within the hysteresis band over a predetermined time period;
• and
• (c-3) determining the energy production loss by applying the high wind factor to the energy value.