Battery Parameter Identification Based on Wireless Power Transfer System With Rectifier Load

Model parameter identification method of proton exchange membrane fuel cell based on improved Harris-hawks and particle swarm optimization algorithm

“…The static model can meet the predicted demand of the fuel cell under the constant working state, but in the actual environment, the fuel cell will also produce a lot of water and heat rather than just electric energy, which distorts the static model, and the static model of the fuel cell is not enough to reflect its own operation process. The problem that the working state of the fuel cell changes greatly with temperature must be solved, Therefore, it is necessary to consider the thermodynamic principle formula of proton exchange membrane fuel cell and convert the static model into dynamic model [15].…”

Mode Switching Based Parameter Identification for 2TX-1RX Wireless Power Transfer Systems

“…Inductive WPT systems deliver energy from transmitters to receivers via the magnetic field. To track maximum energy transfer efficiency and realize constant current/voltage controls of WPT systems, knowledge of parameters including mutual inductances, loads, and other system parameters is crucial [6][7][8][9][10]. The mutual inductance between transmitting coils and receiving coils is subjected to the distance and orientation of coils.…”

Steady-State Multiple Parameters Estimation of the Inductive Power Transfer System

“…Instead of using phase angles of the primary voltage and current, the authors in [26] have implemented the estimation algorithm of the mutual inductance and load resistance based on the phase difference between the primary voltage and current. To improve the performance of the battery load estimation, the authors in [27] have taken into account the rectifier and battery load nonlinear effects and proposed an identification method applying only primary-side voltage measurement. One other study suggests load identification by employing a parity-time symmetry approach, which has the advantage of eliminating the need for the mutual inductance information [28].…”

“…Although above reported studies on the IPT do not require dual-side communication link, a great deal of them [23]- [27], [30]- [34], [36]- [40] have only been focused on estimating the mutual inductance and/or load resistance, assuming that the secondary-side circuit parameters are known, and even equal to those on the primary-side circuit [28], with near the same resonant frequency [25]. In addition, most of them are valid only for certain compensation topologies [22]- [34], [36]- [40].…”

“…Further, the secondary-side coil inductance, compensation capacitance and resonant frequency are generally unknown and may differ from those on the primary side [41]. Another disadvantage of existing methods in [23]- [27], [30]- [34], [36]- [40] is that the parameters of the secondary-side circuit are considered to be constant. In real working conditions, however, coil inductance may be subjected to uncontrolled electromagnetic environments, leading to its deviation from the rated value [29].…”