Virtual power plant flexibility polymerization method based on biggest embedded cube

Abstract

The invention discloses a virtual power plant flexibility polymerization method based on a biggest embedded cube. The method includes: collecting house heating information heat parameters by a polymerization controller, and building a model according to the parameters; collecting prediction power parameters and energy storage parameters of a distributed photovoltaic power source at the same time through the polymerization controller in the step 1, and building a model according to the parameters; adopting a biggest embedded cube method for the house heating information heat parameters and prediction power parameter and energy storage parameter data of the distributed photovoltaic power source acquired in the step 1 and the step 2 to form polymerization power constraint space, and resolvingthe biggest embedded cube of the polymerization power constraint space to acquire a virtual power plant model after scheduling flexibility polymerization. The virtual power plant model is acquired byoperation inside after all parameters including the house heating information heat parameters, the parameters of the distributed photovoltaic power source and parameters of an energy storage batteryare collected by the polymerization controller under constraint of the embedded cube, and only the virtual power plant model after polymerization needs to be uploaded to a power distribution network scheduling center, so that communication data size is reduced greatly.

Description

technical field [0001] The invention belongs to the technical field of power system operation and control, in particular to a flexible aggregation method of a virtual power plant based on a maximum embedded cube. Background technique [0002] In order to control air pollution, the "coal-to-electricity" project in North China and South China has progressed rapidly, covering a total of 38 cities in nine provinces. The electrothermal conversion efficiency of the air source heat pump can reach more than 2.5, so its energy utilization efficiency is much higher than that of direct electric heating. Air source heat pumps have become the mainstream way of "coal to electricity" heating. At the same time, distributed photovoltaic power sources and energy storage are widely connected to the distribution network. The traditional passive distribution network is gradually transitioning to the active distribution network with user-grid interaction. user. In this case, users not only con...

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Problems solved by technology

The main problem in the practical application of the traditional aggregation controller is: the collected information of the individual equipment is still directly transmitted to the distribution network dispatching center without processing, and the amount of transmitted data is too large and the distribution network is difficult to handle

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