Method for estimating SOC of power battery based on anti-outlier robust unscented Kalman filter
An unscented Kalman and power battery technology, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve problems such as battery SOC estimation outlier interference
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[0109] In order to make the technical solution of the present invention clearer and clearer to those skilled in the art, the present invention will be described in further detail below in conjunction with the examples and accompanying drawings, but the embodiments of the present invention are not limited thereto.
[0110] Such as figure 1 As shown, the anti-outlier robust unscented Kalman filter power battery SOC estimation method provided in this embodiment includes the following steps:
[0111] Step 1: Use the composite model method combined with the ampere-time method to design the state and observation equations of the power battery, determine the model equation of the vehicle battery, and establish the battery equivalent model;
[0112] Step 2: Carry out model parameter identification, the recursive least squares method is used to identify the relevant parameters of the battery model observation test equation, the system input is continuous excitation, and the number of i...
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