Energy storage system with peak-load shifting and demand adjustment strategy and control method thereof

Abstract

The invention discloses an energy storage system with a peak-load shifting and demand adjustment strategy. The system is composed of a plurality of energy storage units. Each energy storage unit consists of an energy storage inverter and a battery management system connected with the energy storage inverter; and each battery management system manages a plurality of batteries. In addition, the system also includes a first smart meter and a power management platform. The first smart meter connected with the power management platform is used for acquiring an actual power consumption power Pr of acurrent grid and sending the actual power consumption power Pr to the power management platform; the power management platform is used for determining whether the current actual power consumption power Pr is larger than a preset reported demanded power Pset and acquiring a difference value delta P between the current actual power consumption power Pr and the preset reported demanded power Pset when the current actual power consumption power Pr is larger than the preset reported demanded power Pset; and the energy storage unit is used for compensating an electric power according to the difference value delta P, determined by the power management platform, between the actual consumption power and the reported demand. In addition, the invention also discloses a control method. Therefore, on-demand control of the smart grid is realized.

Description

technical field [0001] The invention relates to the technical field of smart grids, in particular to an energy storage system with peak-shaving and valley-filling and demand-adjusting strategies and a control method thereof. Background technique [0002] At present, the smart grid electricity management system charges the grid according to the peak and valley electricity. However, without a control strategy that combines demand management, it is easy for the actual demand to be greater than the reported power, which will cause damage to the entire power grid, and will also impose corresponding fines on smart grid operators, resulting in certain economic losses. Contents of the invention [0003] The object of the present invention is to provide an energy storage system with a peak-shaving and valley-filling and demand-adjusting strategy and its control method, which can save energy and improve power supply efficiency. [0004] In order to solve the problems existing in th...

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Problems solved by technology

However, without a control strategy that combines demand management, it is easy for the actual demand to be greater than the reported power, which

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