Wireless power transfer (WPT) is the preferred charging method for electric vehicles (EVs) powered by battery and supercapacitor. In this paper, a novel WPT system with constant current capability sightseeing car supercapacitor storage designed. First, an optimized magnetic coupler using ferrite cores shielding structure proposed to ensure stable high efficiency. Compared traditional planar shape core coupler, requires lesser material without degrading performance of system. Second, model...

This paper proposes a new control technique, which only employs the primary-side controller and load identification approach to adjust charging voltage/current for series-series (SS) series-parallel (SP) compensated wireless power transfer (WPT) systems. The advantages are that dual-side communication real-time current/voltage adjustment is avoided as well it suitable different modes, e.g., constant voltage (CV) current (CC) defined by battery profile. approach, utilizes reflected impedance...

Charging current and efficiency of a wireless power transfer system depend on the equivalent load resistance supercapacitor load, which varies during charging. To achieve constant (CC) charging maximized under variable loads, control method that employs primary-side phase shift H-bridge inverter secondary-side semiactive rectifier are proposed. The proposed not only achieves CC charging, but also ensures no reactive impedance seen into rectifier. Furthermore, maximum tracking is based...

Wireless power transfer (WPT) systems have attracted much attention because of their safety, convenience, and environmental friendliness. For wireless supercapacitor charging, the system efficiency charging current are highly dependent on load that varies over a wide range. In this article, simultaneous maximum (MSE) tracking constant (CC) control scheme for is proposed. CC double-sided LCC topology chosen due to its characteristic providing load-independent output current. Furthermore,...

To realize the misalignment insensitivity and stable constant current/voltage (CC/CV) charging without using extra dc-dc converter, composite compensation topology, wireless communication modules, a primary-side control method based on phase-shift full-bridge inverter laminated magnetic coupler (LMC) is proposed for system. First, load-independent output current voltage characteristics series-series are analyzed. The equations estimating deduced by only parameters. Second, excellent...

Although the wireless charging system (WCS) achieves flexible power transmission, high operating performance needs strong anti-misalignment capability and excellent controllability. Hence, this article proposes a mistuned WCS that features dual transmission channels using half-bridge inverters, magnetic flux controlled inductors (MFCIs), couplers with hybrid coils (HMCs), series–series compensation. Then, misalignment tolerance high-efficient constant (CP) are achieved. First, interrelation...

This paper proposes a new multiple coils coupler (MCC) comprising transmitter with numerous circular auxiliary connected in series and lightweight receiver coil to ensure high anti-misalignment ability for the wireless charging system (WCS). First, proposed MCC's rationality is verified by analyzing misalignment performance of asymmetric (ACC) some coils. Furthermore, comprehensive elucidation given, outlining principle structure from magnetic field distribution mutual inductance model....

Abstract With the continuous development of new energy technologies and widespread application high voltage direct current transmission technology, use modular multilevel converters (MMC) has significantly increased. Traditional MMCs, composed half‐bridge submodules, lack fault handling capabilities, cannot block currents on DC side, thus compromising stability systems. Therefore, this study proposes a low‐cost improved MMC submodule topology based dual‐bidirectional switch (DBSSM) provides...

The long-term stability of cementless femoral prostheses is primarily affected by aseptic loosening, micromotion, and stress shielding, all which are related to the force transfer prosthesis. These factors can compromise osseointegration proximal prosthesis, leading loosening within cavity. Due individual variability femur, fit between prosthesis cavity during design phase may differ from achieved surgical procedure. Consequently, postoperatively not align with results obtained finite...

Modular multilevel converter (MMC) is a modern and preferred topology among the voltage source converters (VSCs) in high direct current (HVdc) transmission. However, traditional half-bridge sub-module (SM) cannot block dc fault current. Hence, novel SM with ride-through capability introduced. This article proposes an improved diode-clamp (IDCSM) structure. Based on DCSM topology, two capacitors' connection IDCSM modified to operate independently generate output levels of <inline-formula...

This paper proposed a fast and robust control strategy for wireless power transfer system using primary side control. First, sinusoidal reference trajectory signal was generated by analyzing the properties of vector fields associated with all possible configurations converter. Then, switching controller designed based on behavior converter switched differential equations, capturing dynamics Finally, set points around defined to establish global asymptotic stability. The has higher dynamic...

This article proposes a wireless charging system (WCS) with two reconfigurable transmission channels to achieve constant current/voltage (CC/CV) charging, anti-misalignment solid ability, and zero voltage switching (ZVS) operation. First, the structure design working principle of orthogonal magnetic coupler (OMC) are given. The OMC's parameters optimized using experimental design. Then, coupling performance OMC is illustrated by Ansys simulations. Second, topology designed WCS analyzed....

This study presents an investigation into the use of primary-side electrical information to achieve constant current/voltage (CC/CV) charging for inductor–capacitor–inductor-series compensated wireless power transfer systems. It uses relationship phase difference between transmitter resonant current and compensation capacitor voltage control voltage. The cosine sine values are obtained by quadrature transformation algorithm, then CC/CV is achieved proportional–integral-controlled shift...

This paper proposes a new wireless power transfer (WPT) control technique, which employs primary side controller and series-series (SS) or series-parallel (SP) compensation to achieve constant voltage (CV) charging current (CC) without the information of variable load. Through variation resonant current, is estimated dual-side communication avoided. Then, not only receiver more compact, but also stability WPT system further ensured. Based on simulation experimental results, it show that when...