Steam supply and power generation system and it's power control method

The present invention received on the air conditioner group and the communication line movements are controlled according to control signals transmitted and received through the communication line related to a cogeneration system and a method of power control for controlling operation of the generator by the operating state of the air conditioner with the driving of the generator to an external controller in accordance with the connected to the generator and the generator being operated is controlled in accordance with the operation signal of the air conditioner configured to include an external controller for performing the operations and status monitoring of the air conditioner generator controlled by the air conditioner, and the generated power from the inter-working of the power generation period can be used as much as possible, outside temperature can be used to relatively heat generator engine parts when low to maximize efficiency of the generated power by pre-heating the compressor in advance have. Cogeneration system, a heat pump type air conditioner, an external controller, the generator controller