Electric automobile frequency modulation optimizing control method based on charge state detection

Abstract

The invention discloses an electric automobile frequency modulation optimizing control method based on charge state detection. The method comprises the steps that real-time electricity price data and frequency modulation price data of an electric distribution network are obtained; charging load characteristic data of an electric automobile and an SOC curve of the electric automobile are obtained during a charging stage; an electric automobile charging cost model is established by taking the SOC curve of the electric automobile as a constraint condition; a frequency modulation earning model with the electric automobile participating in frequency modulation is established; a user final earning model is established by combining the charging cost model of the electric automobile and the frequency modulation earning model, and an optimal solution of the user final earning model is solved according to the real-time electricity price data and the frequency modulation price data of the electric distribution network; a charging strategy with the electric automobile participating in frequency modulation and an execution controlling the charging strategy are obtained according to the model optimal solution. According to the electric automobile frequency modulation optimizing control method based on the charge state detection, travel demands of a user are met, and charging in the charging stage and the frequency modulation stage of the electric automobile are reasonably distributed, the user can obtain biggest earnings, and the service life loss cost of a battery is effectively reduced.

Description

technical field [0001] The invention relates to an electric vehicle frequency modulation optimization control method based on charge state detection, and belongs to the field of electric vehicle charging technology. Background technique [0002] With the rapid development of the economy, society and the automobile industry, problems such as energy shortage, environmental pollution, and global climate change caused by the widespread use of traditional internal combustion engine vehicles have become increasingly prominent, and the transformation of the automobile industry has become an inevitable trend. Electric vehicles have shown advantages that traditional means of transportation do not have in alleviating energy and environmental crises, and have received extensive attention. At present, electric vehicles have developed rapidly in the world. [0003] The charging and discharging of electric vehicles has strong randomness. If the charging and discharging process of electri...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, to provide an electric vehicle frequency modulation optimization control method based on state-of-charge detection, to solve the problem that the power of the existing electric vehicle can only be changed in one direction in the charging and discharging characteristics, and cannot The problem of reasonably allocating the charging and frequency regulation time slots of electric vehicles in the rechargeable time period

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