Source network load storage coordination optimization method based on power unbalance

Abstract

The invention discloses a source network load storage coordination optimization method based on power unbalance. The method comprises the steps of obtaining the data information of a to-be-analyzed power grid system; establishing an objective function of a source network load storage coordination optimization model; setting a power grid active power balance constraint based on the power unbalanceamount, a traditional unit output limit constraint and a conventional constraint of the to-be-analyzed power grid system; and solving the objective function under the set constraint conditions to obtain a final source network load storage coordination optimization result based on the power unbalance. The method increases the flexibility of system scheduling and the utilization rate of new energy,is closer to an actual power grid model, and is high in reliability, good in practicability and high in accuracy.

Description

technical field [0001] The invention belongs to the field of electric automation, and in particular relates to a method for coordinating and optimizing source-network-load-storage based on unbalanced power. Background technique [0002] With the development of economy and technology and the improvement of people's living standards, electric energy has become an indispensable secondary energy source in people's production and life, bringing endless convenience to people's production and life. Therefore, the stable and reliable operation of the power system has become one of the most important tasks of the power system. At present, with the development of new energy power generation and the increasingly serious environmental problems, large-scale new energy power generation has also been connected to the grid system. [0003] Currently, the long-term storage of electrical energy is still not feasible for technical reasons. Therefore, the power system still requires its own p...

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Problems solved by technology

[0004] However, due to the random fluctuation of large-scale new energy power generation and power load, the power imbalance will inevitably occur in the system, which is essentially the power that appears due to the power change of the load or power supply under the original operating state or predicted value. difference; therefore, the power balance state of the grid is essentially a dynamic and real-time balance

[0005] However, the current coordination and optimization process of the source (power supply end) network (grid end) load (load end) storage (energy storage end) of the power system often takes the power balance of the power grid as a rigid constraint condition, and does not Consider its dynamic and real-time nature

This makes the current source-grid-load-storage coordination and optimization process for power systems too idealistic, with poor practicability and accuracy.

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