Method for optimizing operation simulation of multi-energy combined power generation system

Abstract

The invention discloses the technical field of electric power system operation and dispatching, and particularly relates to a method for optimizing operation simulation of a multi-energy combined power generation system. Multiple days or a week is selected as a dispatching period, according to a predicted deviation value of intermittent power source output of wind power, photovoltaic energy and the like, a predicted scene of the output of the wind power and the photovoltaic energy is established; the operation position of a hydroelectric generating set with the output capable of being flexibly adjusted in a loading curve can be firstly determined in the multi-energy combined power generation system, the assembly mode of a thermal power generating set is arranged from an initial time frame of the dispatching period, reasonable load distribution is conducted on each type of set with operation cost optimization serving as a local target so that a load regulation abundant zone for the sets operated at each time frame can be formed, and finally the load regulation abundant zone of the sets at each time frame is continuously selected and updated, and therefore combination of the sets in the whole dispatching period is finally achieved and allocation of load between the sets is achieved. The method guarantees balance of system power and stable operation.

Description

technical field [0001] The invention belongs to the technical field of power system operation and scheduling, and in particular relates to an optimization method for operation simulation of a multi-energy combined power generation system. Background technique [0002] In recent years, with the rapid development of the domestic electric power industry and the market-oriented reform, my country's electric power system has developed rapidly, the scale of the system has become larger and larger, and the operating environment has become more and more complex. At the same time, the proportion of new energy units such as wind farms and photovoltaic power stations in the power system is gradually increasing, which has significantly changed the power structure. The power system is transitioning to include thermal power, hydropower, nuclear power, wind power, photovoltaics, energy storage, etc. Combined power generation system of multiple types of power sources. The penetration rate ...

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Problems solved by technology

[0003] The purpose of the present invention is to provide an optimization method for the operation simulation of a multi-energy combined power generation system, which is used to solve the instability of the power generation system caused by the randomness and intermittent nature of the wind turbines and photovoltaic generators after they are connected to the system problem, so as to ensure the system power balance and stable operation

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