2.3 Bidirectional IGBT switch with capacitor..8 2.4 System voltage, capacitor voltage, and gate signals for the bidirectional switch controller for reactive power compensation. Many newer MCUs have multiple onboard analog-to-digital converters (ADCs) with 12-bit resolution for data input capture. But the majority
Bidirectional current-mode capacitor multipliers for on-chip DC-DC converter compensation are presented in this paper. The increasing demand for portable devices is a driving force toward
The IFOC is implemented based on PWM voltage modulation with voltage decoupling compensation. A dual loop controller is designed, based on a small signal model, to control the bidirectional ZSI capacitor voltage using the bode diagram. to control the bidirectional ZSI capacitor voltage using the bode diagram. M. Yamanaka and H. Koizum
This paper presents a variable reactance type series compensator with pulse-width modulation (PWM) capability. On a per-phase basis, it can be represented by a bidirectional force-commutated switch in parallel with a combination of a capacitor in series with another bidirectional force-commutated switch. The equivalent reactance of the capacitor circuit can be continuously
This article presents a novel three-level (TL) converter control integrated circuit (IC) with a flying capacitor control loop, an adaptive constant on-time (ACOT) control, and a shared control circuit in bidirectional operation for the battery charger system. To solve the flying capacitor balance issue in TL converters, the flying capacitor control with single-point sensing
Bidirectional DC–DC converters with wide voltage conversion range are essential for voltage matching and power decoupling between super capacitor and vehicle bus, helping to improve the low
This article presents a new control structure for bidirectional power electronic converters. Commonly, a proportional-integrating (PI) controller is used in the dc capacitor voltage loop, to
This project introduces a bidirectional power control approach for a SC-ESS based on a modular multilevel converter (MMC) DC-DC converter using a fuzzy logic controller (FLC). The main aim of this proposed work is to effectively manage the flow of power between super capacitor and the DC bus in a seamless and efficient manner.
An Electrolytic capacitor-less bi-directional EV-Charger with 6 switches a new single-stage isolated bi-directional AC-DC converter with the appropriate controller for Electric Vehicle application is proposed. and Tolbert L., “Examination of a phev bidirectional charger system for v2g reactive power compensation,” in Applied Power
compensation) with a Series capacitor, including its Parallel resonant circuit, better-tuned misaligned performances are ac hieved in the PS. So, SP- and S/SP-compensated c onvert-
Bidirectional Wireless Power Transfer Systems for Electric Vehicle Applications. Energies 2022, 15, charging applications demand a simple SS compensation topology with a PID controller and a Single-Phase Shift switching method. However, for the medium- or high-power based on the compensation capacitors connected in Series or Parallel
B. Analysis of the Single-Ended Capacitor Multiplier for On-Chip Compensation, Soft-Start, and Fast Transient Operations Fig. 4 shows the frequency response of the bidirectional current mode capacitor multiplier technique. The plot is similar to the lag compensation with a higher
An auto-capacitor-compensation pulse frequency modulation (ACC-PFM) controller, combining peak and valley current-mode controls, is proposed to resolve the issue of unbalanced flying capacitor voltage, as well as to regulate the output voltage. A three-level boost converter enables efficient voltage step-up power conversion with high power density by
degree point of the capacitor voltage (shortly before the maximum current through the capacitor). The capacitor will then discharge through the thyristors and the reactor. The effect of this is that the capacitor will appear to be smaller, i.e., it will have a higher impedance. This increases the apparent degree of series compensation
This paper proposes a novel small film capacitor based bidirectional DC/DC converter (BDC) for the hybrid energy source systems (HESS) in electric vehicles (EVs). In the proposed BDC, an auxiliary booster cell with a switched-inductor cell is added to achieve wide voltage gains in both the boost and buck modes. Therefore, small film capacitors operate with
A closed-loop gain/efficiency-enhanced bidirectional switched-capacitor converter BSCC is proposed by combining an adaptive-conversion-ratio ACR phase generator
This paper presents an improvement in harmonic compensation performance of a previously proposed smart charger (SC) with a constant dc-capacitor voltage-control (CDCVC) strategy for electric
The proposed zero-current-switching switched-capacitor quasi-resonant DC-DC converter is a new type of bidirectional power flow control conversion scheme. It possesses the conventional features of resonant switched-capacitor converters: low weight, small volume, high efficiency, low EMI emission and current stress. A zero-current-switching switched-capacitor
This paper focuses on the three-level Buck-Boost Bi-directional converter (TL Buck-Boost BDC) in a energy-storage inverter. Based on the traditional dual closed-loop charging or discharging control, a dual feedforward control strategy based on positive and negative bus capacitor voltage equalization and battery voltage duty cycle is proposed.
Bidirectional current-mode capacitor multipliers for on-chip DC-DC converter compensation are presented in this paper. The increasing demand for portable devices is a driving force toward higher integration. converter BSCC is proposed by combining an adaptive-conversion-ratio ACR phase generator and pulse-width-modulation PWM controller for
Analysis and Implementation of Closed-Loop Control of Electrolytic Capacitor-Less Six-Pulse DC-Link Bidirectional Three-Phase Grid-Tied Inverter September 2017 IEEE Transactions on Industry
To reduce the amplitude of bus voltage fluctuation, two ways are usually adopted : (a) Adding a large voltage stabilizing capacitor on the DC side; (b) Adding an active storage unit on the DC side high-power converters, the capacitance of the regulator capacitor needs to be very large, usually several hundred millifarads or even several farads, which makes the
compensation is required. scheme. is controller reduces the size of the capacitor . Generalized structure of bi-directional switched-capacitor DC/DC con-verters. IEEE Trans Circuits Syst I
The DSPTMS320F28335, which is utilized as the main control chip, aims to measure the system power factor and current voltage, control the switching capacitor, improve the accuracy of the capacity
Bidirectional current-mode capacitor multipliers for on-chip DC-DC converter compensation are presented and it is demonstrated that a small capacitor is multiplied by a factor about 200, which allows the control system
Employing these methods is not recommended due to the short lifetime of electrolytic capacitors and the a switched capacitor series voltage controller (SCSVC) is a bidirectional converter to return the absorbed power by the series branch to the microgrid during the voltage swell compensation. The bidirectional capability of the proposed
Single-ended and two-ended bidirectional capacitor multipliers for providing on-chip compensation, soft-start, and fast transient mechanisms are proposed in this paper. The bidirectional current mode capacitor multiplier technique can effectively move the crossover frequency toward to the origin in the start-up period for a smoothly rising of the output voltage.
V2G bidirectional fast charging double closed-loop control strategy can realize V2G fast charging and discharging, and the gridside current harmonic distortion rate during pulse charging and
In Fig. 1,i b represents the inductor current of the bidirectional converter, providing the AC component of the pulse load current i p; i o represents the output current of the preceding DC converter, providing the DC component of the pulse load current i p, and satisfies i p = i o + i b. i L1 is the current through L1. When the pulse current i p changes, the compensation current
A new topology and controller based on single-stage AC-DC resonant converter, without Electrolytic capacitors (E-cap), for bi-directional EV battery chargers is proposed in this paper.
The predictive current controller is introduced, which provides dead-beat dynamics, full compensation of time delay between feedback and control command as well as suppression of LCL circuit
Based on TSMC 0.35/spl mu/m technology, we demonstrate that a small capacitor is multiplied by a factor about 200. It allows the control system compensating circuit of DC-DC converter be
The DAB converter offers a bidirectional isolated power conversion technique. The circuit diagram of a DAB converter is depicted in Fig. 13.2, with ''V in '' and ''V o '' are the voltages in input terminal and output terminal, ''L k '' denotes the equivalent inductor, which comprise the leakage inductance of the HFT including an auxiliary inductor in series, required
The IFOC is implemented based on PWM voltage modulation with voltage decoupling compensation. A dual loop controller is designed, based on a small signal model, to control the bidirectional ZSI capacitor voltage using the bode diagram. In addition, this paper presents the gird interface mode with its control to charge or discharge the battery
In addition to basic F I G U R E 1 Four possible basic compensation circuits series (S) and parallel (P) configurations with a capacitor connected in series or parallel to transmitter and receiver
VAR Compensation On Load Side Using Thyristor Switched Capacitor and Thyristor Controlled Reactor April 2021 Journal of the Institute of Engineering 16(1):111-119
A dual-path capacitor multiplier (DPCM) technique is proposed for on-chip frequency compensation. The DPCM uses two currents to charge and discharge a
Single-ended and two-ended bidirectional capacitor multipliers for providing on-chip compensation, soft-start, and fast transient mechanisms are proposed in this paper. The
are able to rapidly and continuously control the line compensation over a continuous range with resulting flexibility. Controller used for series compensation is the Thyristor Controlled Series Compensator (TCSC). TCSC controllers use thyristor-controlled reactor (TCR) in parallel with capacitor segments of series capacitor bank (Figure 1).
Bidirectional current-mode capacitor multipliers for on-chip DC-DC converter compensation are presented in this paper. The increasing demand for portable devices is a driving force toward higher integration. Reducing physical area with the same or better performance is carried out. Based on TSMC 0.35/spl mu/m technology, we demonstrate that a small capacitor is multiplied
nded bidirectional capacitor multipliers for providing on-chip compensation, soft-start, and fast transient mechanisms are proposed in this paper. The bidirectional current mode capacitor multipli r technique can effectively move the crossover frequency toward to the origin in the start-up pe-riod for a smoothly rising
compensation). It means that minimizing the size of capac-itors can alleviate the tradeoff between cost and performance thereby maximizing profit.The bidirectional current mod capacitor multiplier technique contains the functions of on-chip c
The voltage fluctuations of the interface capacitor in the energy storage and the current fluctuations of the inductor in the bidirectional DC–DC converter are discussed. Moreover, ADRC controller is designed for the bidirectional DC–DC converter of MMC-BESS.
hanism in the Bidirectional Current Mode Capac tor Mult plier TechniqueContrarily, the time constant is needed to be decreased when load changes. A smal time constant moves the crossover fre-Fig. 10.Proposed bidirectional current
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