An energy storage optimal allocation method considering the characteristics of system gas and thermal power units

Abstract

The invention relates to an energy storage optimal configuration method considering system gas and thermal power units. The method comprises the following steps: firstly, according to historical data,forecasting the output of a new energy generator set, constructing a typical scene set of the output of the new energy generator set, and combining the load fluctuation characteristics, constructinga load scene set of a power system; This paper analyzes the operation characteristics of gas-fired units and thermal power units in the start-up and stop stages, establishes the state transfer equations, defines the state transfer conditions, and establishes the state transfer models of gas-fired units and thermal power units in the start-up and stop stages, so as to realize the transfer and switching between different states of gas-fired units and thermal power units in the start-up and stop stages. The paper also analyzes the operation characteristics of gas-fired units and thermal power units in the start-up and stop stages. According to the system and operation parameters, considering the wind power consumption objective, the optimal energy storage allocation model considering the climbing ability and multi-stage state transition of gas turbine and thermal turbine is constructed, with the objective of minimizing the relevant investment and total operating cost. Solve the above power system energy storage optimal allocation problem, and obtain the power system energy storage optimal allocation scheme.

Description

technical field [0001] The invention belongs to the technical field of power system planning, and in particular relates to an energy storage optimization configuration method considering the characteristics of system gas and thermal power units. Background technique [0002] The environmental problems brought about by the extensive economic development model make renewable energy (such as wind energy) attract much attention because of its green and environmental friendliness. The large-scale access to clean energy is bound to improve the environment, but it also brings new challenges to the operation of the power system, such as the increasing pressure on the power system for peak regulation. Insufficient peak capacity has become the main factor restricting clean energy consumption capacity. On the one hand, the power grid needs to have a more flexible operation mode to improve the adjustment capability of the power system; on the other hand, in the planning process of the ...

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Problems solved by technology

At present, when the power system solves the backup optimization problem, it has not considered whether each resource in the system has the ability to receive instructions for system backup scheduling during operation.

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