Operation method to the Combined Heat and Power Generation complying with the Demand of AGC and on the bases of Non self-constraint Bidding in the Power Trading System

摘要

According to various embodiments of the present invention, the present invention relates to a method for operating automatic power generation control-following cogeneration based on non-restricted bidding of a power transaction system, which is to prevent loss of fuel costs during cogeneration by non-restricted bidding execution on power transaction and automatic power control following, and to secure economic feasibility of heat supply in response to a decrease in a heat supply cost. To this end, the method for operating a cogeneration device in which a reheating middle-pressure blocking side and a reheating middle-pressure flow rate control side are connected in series between a steam turbine which is a reheating middle-pressure system and a low-pressure heat exchanger, and a low-pressure blocking side and a low-pressure flow rate control side are connected in series between a steam turbine which is a low-pressure steam system and the low-pressure heat exchanger, comprises: a power transaction bidding step (non-restricted bidding) in which a restriction reason is not input in case of bidding of a power generation device in a power transaction system; an automatic power generation control performing step of following and controlling the power generation device for a power system output request signal and a frequency; and an electricity output real-time change step of changing electricity output of the power generation device in real time.