The charged state is estimated accurately at the packing lithium ion batteries and its prediction error is reduced greatly by combining the equivalent circuit model and the improved splice Kalman filtering algorithm, which has a good prospect of complex working conditions.
As the unscented Kalman filter algorithm is sensitive to the battery model and susceptible to the interference from unknown noise, the splice Kalman filtering algorithm is put forward to handling these problems well. Its implementation process is introduced in detail, including two parts named as the model adaptation and the noise adaptation.
The charged state estimation is investigated for the lithium ion batteries based on a novel reduced-order electrochemical model, which could have a major impact on the energy storage systems worldwide and an advanced machine learning algorithm is conducted for the power batteries of diversified drive cycles.
In this case, the process noise can be facilitated and the covariance of the observed noise is controlled for the estimation process, in which the Taylor expansion is applied to unfold the system model of the lithium ion battery pack. And then, the first-order linearization model is left by removing the high-order terms.
OCV-SOC curves of different charge segments of ternary lithium-ion battery. From Figs. 17 and 18, the SOC correction model based on the voltage platform characteristic can correct the SOC in the charge segment and obtain the corresponding OCV. Moreover, the modified OCV-SOC curve almost coincides with the laboratory OCV-SOC curve. 4.4.
As for the lithium ion battery packs, the tectonic energy state parameter is affected by the factors such as temperature, charge-discharge current rate, self-discharge and aging effect. The internal chemical reaction is variable and it beneaths the out-detective parameters.
According to the special condition expression of the aerial lithium-ion battery pack, a novel targeted equivalent model (Splice–Equivalent Circuit Model) is proposed and …
According to the special condition expression of the aerial lithium-ion battery pack, a novel targeted equivalent model (Splice–Equivalent Circuit Model) is proposed and constructed.
A reliability design method for a lithium-ion battery pack considering the thermal disequilibrium in electric vehicles. J Power Sources, 386 (2018), pp. 10-20. View PDF View article View in …
According to the demand of vehicle lithium-ion battery pack, the splice equivalent circuit model is constructed. First, a joint experiment of intermittent discharge and …
According to the special condition expression of the aerial lithium-ion battery pack, a novel targeted equivalent model (Splice–Equivalent Circuit Model) is proposed and …
Battery Pack Type Rechargeable Lithium Ion Output Approx. DC14.4V / 6,380 mAh Capacity Approx. 300 splice and heat cycles Temperature Recharge : 0 to 30oC Storage : -20 to 30oC …
According to the special condition expression of the aerial lithium-ion battery pack, a novel targeted equivalent model (Splice–Equivalent Circuit Model) is proposed and …
As the unscented Kalman filtering algorithm is sensitive to the battery model and susceptible to the uncertain noise interference, an improved iterate calculation method is …
charged state prediction; lithium ion battery pack; composite equivalent modeling; splice Kalman filter; model adaptive; noise correction. Corresponding author: Shunli Wang. E-mail address: …
the lithium-ion battery pack, the Splice- Equivalent Circuit Model (S-ECM) is constructed by considering the charac - terization accuracy and computational complexity, which
An accurate and a self-corrective model for lithium ion battery pack is developed, based on the analysis of properties and performance of equivalent circuit models …
According to the special working condition and working state description target of the aerial lithium-ion battery pack, the composite equivalent circuit model (Splice–Equivalent …
The parameter identification method study of the Splice equivalent circuit model for the aerial lithium-ion battery pack. Meas Control 2018; 51(5–6): 125–137. Crossref
According to the demand of vehicle lithium-ion battery pack, the splice equivalent circuit model is constructed. First, a joint experiment of intermittent discharge and …
According to the special working condition and working state description target of the aerial lithium-ion battery pack, the composite equivalent circuit model (Splice–Equivalent Circuit Model (S-ECM)) is put forward …
A splicedly formed lithium strip, a preparation method therefor, and a negative pole (52), lithium ion battery (5), battery module (4), battery pack (1) and apparatus related thereto....
An accurate and a self-corrective model for lithium ion battery pack is developed, based on the analysis of properties and performance of equivalent circuit models …
According to the demand of vehicle lithium-ion battery pack, the splice equivalent circuit model is constructed. First, a joint experiment of intermittent discharge and …
The invention discloses a modularized rapid spliced lithium battery pack, which comprises a shell, wherein electric cores are arranged in the shell, four vertical side surfaces of the shell are the …
Usually, we should move from simple to complex methods for lithium battery reconditioning methods. The common lithium battery repair methods are so simple and easy …
For the ternary lithium-ion battery pack, collection time, total battery voltage, total battery current, SOC and the maximum (minimum) temperature of the single battery are also …
the lithium-ion battery pack, the Splice- Equivalent Circuit Model (S-ECM) is constructed by considering the charac - terization accuracy and computational complexity, which
Pure electric vehicles as clean vehicles have been paid enough attention because of the pressure of conventional power vehicles on fossil energy consumption. 1 …
The analysis charts show that the proposed splice Kalman filtering algorithm applied to the voltage traction follows the voltage of the terminal voltage variation on the …