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Information gap-based coordination scheme for active distribution ...
Installation node of charging pile: EV1(23), EV2(11) ... This is because the reactive power compensation equipment in the ADN can change the reactive power compensation measures to maintain the voltage stability. ... Performance assessment of two-timescale multi-objective volt/var optimization scheme considering ev charging …
Analysis and study of compact inductive power transfer ...
The double-sided LCC topology provides an efficient compensation method for electric vehicle (EV) wireless charging systems. However, the existence of two compensation coils results in an electric vehicle wireless charging device with a large volume, high power consumption, and low efficiency. To solve these problems, this paper …
Design, implementation issues and performance of an …
These compensation capacitors can be either connected in series or parallel with the primary and secondary coils, resulting in the basic configurations shown in Fig. 1b. In this paper, the SS …
Inductive Power Transfer Based on Variable Compensation …
Wireless charging must be highly efficient throughout the entire battery charging profile to compete in the electric vehicle (EV) industry. Thus, optimum load matching is commonly used: it operates at the equivalent load that maximizes the efficiency, which depends on the coil''s alignment. In this article, the optimum load is made independent of the coils'' …
Research on new electric vehicle AC charging pile technology …
Research on new electric vehicle AC charging pile ...
Inductive Power Transfer Based on Variable Compensation …
When misalignment occurs, the half-wave modulation technique results in higher efficiency than the conventional-fixed compensation, where the efficiency is lower by up to 0.68% …
A 95mV-startup step-up converter with Vth-tuned ...
A 95mV-startup step-up converter with V th-tuned oscillator by fixed-charge programming and capacitor pass-on scheme Abstract: Harvesting energy from the environment by using a thermoelectric generator (TEG) or photovoltaic cells provides a solution for battery-free sensor networks or electronic healthcare systems. In these …
A 1.24 -A Quiescent Current NMOS Low Dropout Regulator
A novel switched-capacitor pole tracking (SCPT) compensation scheme is proposed to ensure stability up to maximum load current of 150 mA with a low-ESR 1 μF output capacitor. Designed in a 0.25 μm CMOS process, the LDO has an output voltage range of 1-3 V, a dropout voltage of 240 mV, and a core area of 0.11 mm 2 .
A linear charge pump with novel adaptive charge compensation …
An adaptive charge compensation structure is designed to accelerate the recovery of the output when an undershoot occurs. ... A new switching scheme for high-voltage switched capacitor DC-DC converter. 2021 10th International Conference on Modern Circuits and Systems Technologies (2021), pp. 1-4.
Battery charging topology, infrastructure, and …
This study, therefore, reviews the various battery charging schemes (battery charger) and their impact when used in EV and Hybrid …
Compensation Circuit
A basic and widely used compensation scheme with single magnetic coupling and two capacitors is explained in this chapter. The characteristics of …
Constant Current Charging and Maximum Efficiency Tracking …
Charging current and efficiency of a wireless power transfer system depend on the equivalent load resistance of supercapacitor load, which varies during charging. To achieve constant current (CC) charging and maximized efficiency under variable loads, control method that employs primary-side phase shift H-bridge inverter …
(PDF) Comparison of Compensation Topologies for Wireless Charging ...
The study of the IPT system in the field of electric vehicles is mainly concentrated on the compensation topologies [4][5][6][7][8] and the system power control method [9][10][11].
Wireless charging technologies for electric vehicles: Inductive ...
Wireless charging technologies for electric vehicles: Inductive ...
A Critical Review of Compensation Converters for Capacitive …
The compensation circuit plays a crucial role in the framework of Capacitive Power Transfer (CPT) in wireless Electric Vehicle (EV) charging schemes. …
An improved compensation method for voltage sags and swells of …
However, the scheme cannot solve the transient problems and harmonics. EVs are connected to the grid through the charging pile, essentially an AC/DC converter. The topology [6], [7] and control strategy [8] of charging piles optimization can reduce the harmonics when EVs are charging.
Step-by-step tutorial for building capacitor bank and reactive …
The aim of project called „Reactive power compensation panel" was to design capacitor bank with rated power of 200kVar and rated voltage of 400V adapted for operation with mains, where higher order harmonics are present. The capacitor bank was to be power capacitor based with automatic control by power factor regulator.
A Wireless In-Flight Charging Range Extended PT-WPT
Abstract: To address the special challenges for drone wireless in-flight charging systems, namely the continuous fluctuation of mutual inductance, large charging distance, and limited payload of the pickup, a novel high-order primary-series (S) and secondary-single-inductor-double-capacitor (SLDC) topology for parity-time (PT) …
(PDF) Design of Charging Module for DC Charging …
PDF | In order to to solve the demand of electric vehicle for high power and high performance DC charging pile, this paper presents a design scheme for... | Find, read and cite all the research ...
An improved compensation method for voltage sags and swells of …
To enable grid-friendly charging operation, the proposed control strategy considers harmonic currents elimination, reactive power compensation, power factor …
Analysis and Experiment of Homopolar Inductor Alternator With …
Abstract: Homopolar inductor alternator (HIA) typically plays a key role in the capacitor charging power supply (CCPS) system. However, HIA cannot meet the growing demand for higher power density due to its unipolar magnetic field. In order to obtain a compact HIA-CCPS with higher power density, a novel HIA named ACWHIA based on …
Review of inductively coupled power transfer for electric vehicle charging
EV wireless charging typically employs the SS compensation scheme [3, 55]. Despite the fact that SS compensation provides a high-efficiency profile over varying load, the output power is inconsistent and depends on the coupling factor . Feng et al. detuned the SS compensation to improve the effective power transfer at a wide …
A DC Charging Pile for New Energy Electric Vehicles
The DC charging pile can expand the charging power through multiple modular charging units in parallel to improve the charging speed. Each charging unit includes Vienna rectifier, DC transformer, and DC converter. ... The DC charging pile adopts a modular design scheme, which is convenient for power expansion, and the …
Single-capacitor active-feedback compensation for small …
This brief presents a single-capacitor active-feedback compensation (SCAFC) scheme for three-stage internal amplifiers driving small capacitive loads. The proposed SCAFC scheme can stabilize the three-stage amplifier by using only a single small-value compensation capacitor, thereby significantly reducing the amplifier …
Charge-compensation-based reference technique for switched-capacitor ...
This paper presents an enhanced voltage reference for Switched-Capacitor ADCs. Charge losing effect is analyzed and quantized. Charge-Compensation-Based (CCB) technique is introduced to reduce the signal-dependent effect. Charge Compensation Unit (CCU) is designed to compensate charge. It features in low overhead on power and chip-size. A …
Adaptive Compensation Scheme for Wireless Power Transfer …
Wireless power transfer (WPT) via magnetic resonance coupling is characterized by the use of compensation capacitors to tune the resonant frequency of the system. However, the system becomes mistuned when the self-inductance of the transmitter (Tx) and receiver (Rx) coils vary due to misalignment or manufacturing tolerance of the coils. This paper …