Converter interconnected with a wind power generation farm to enable continuous power transmission and operating method thereof

A converter interconnected with a wind power generation farm, the converter comprising:

• a power monitor configured to measure a direct-current voltage of a system interconnected with the converter;
• a controller configured to determine whether the measured direct-current voltage of the system is included in a preset range of a reference voltage and adjust an alternating-current voltage that is output to the wind power generation farm to a preset value, when it is determined that the measured direct-current voltage of the system is outside of the preset range of the reference voltage;
• and
• a switch configured to perform a switching operation to output the adjusted alternating-current voltage,
• wherein the adjusting of the alternating-current voltage to a preset value includes adjusting a frequency of the alternating-current voltage to a preset frequency value and adjusting a magnitude of the alternating-current voltage to a preset magnitude value, and
• wherein the controller is further configured to:
• control a magnitude of the alternating-current voltage to increase at a preset rate when it is determined that the measured direct-current voltage of the system is inside of the preset range of the reference voltage;
• and
• adjust the alternating-current voltage to the preset value to lower the frequency and the magnitude of the alternating-current voltage that is output to the wind power generation farm and reduce an amount of power generation of the wind power generation farm that is supplied with the adjusted alternating-current voltage when it is determined that the measured direct-current voltage of the system is outside of the preset range of the reference voltage.