Electrostatic precipitator and control method thereof

An electrostatic precipitator comprising:

• a charging unit configured to charge foreign materials;
• and
• a dust collecting sheet configured to collect the foreign materials charged in the charging unit,
• wherein the dust collecting sheet comprises:
• a first electrode;
• a second electrode spaced apart from the first electrode to face the first electrode in a first direction, extending in a second direction that is orthogonal to the first direction, and configured to collect the foreign materials passed through the charging unit;
• a first power connector connected to the first electrode, configured to apply a voltage to the first electrode, and being at one end of the dust collecting sheet in the second direction;
• a second power connector connected to the second electrode, and configured to apply a voltage to generate a potential difference with respect to the first electrode to the second electrode, the second power connector being at another end of the dust collecting sheet in the second direction;
• and
• a third power connector connected to the second electrode additionally, and configured to heat the second electrode, the third power connector being close to the other end of the dust collecting sheet in the second direction.