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An active damping control strategy with improved transient performance for high‐frequency AC power distribution in intelligent …
High-frequency AC (HFAC) LCLC resonant inverter has recently received more and more attention in power distribution system (PDS) of intelligent vehicles. However, LCLC resonance complicates the design of a current control loop and can even threaten the stability and transient performance of PDS. ...
Modeling and Suppression of Zero-Sequence Circulating Current …
Connection of the neutral point of the ac capacitor to the midpoint or positive (negative) rail of the dc link is a cost-effective method to suppress the leakage current to the ground. …
Control of Resonant Switched-Capacitor Converters
For the dynamic off-time modulation (DOTM), resonant pulses have to be generated where the required pulse widths depend on the resonance frequency f sw,res defined by the effective flying capacitance C fly and the inductance as …
An improved harmonics suppression power amplifier circuit using integrated self‐resonant capacitor …
An improved harmonics suppression power amplifier circuit using integrated self‐resonant capacitor for radar application August 2023 International Journal of Circuit Theory and Applications
Adaptive Virtual Admittance Reshaping-Based Resonance Suppression Strategy for PMSM Drives With Small DC-Link Capacitor
Adaptive Virtual Admittance Reshaping-Based Resonance Suppression Strategy for PMSM Drives With Small DC-Link Capacitor Abstract: Active damping strategies can suppress the LC resonance for electrolytic capacitorless permanent magnet synchronous motor (PMSM) drives, yet it is difficult for the fixed damping coefficient to achieve optimal …
Analysis and Suppression of High-Frequency …
Large-scale offshore wind farms have become the development trend in wind power generation. Long submarine cables are used to collect electrical energy in the collection networks of offshore …
RESONANCE SUPPRESSION METHOD AND SYSTEM FOR ELECTROLYTIC CAPACITOR …
： The present invention relates to the field of permanent magnet synchronous motor drive control, and disclosed thereby are a resonance suppression method and system for an electrolytic capacitor-free variable frequency driving system. The method ...
Parasitic Effect Suppression With Resonance Cancelation for …
This structure effectively breaks the limitation of the absorption bandwidth due to the parasitic capacitance of the p-i-n diode through resonance cancelation. First, the LC parallel resonance is adapted to inhibit the interference of the parasitic capacitance by connecting the inductance in parallel with the p-i-n diode.
Capacitive Voltage Transformers: Transient Overreach Concerns …
Capacitive Voltage Transformers: Transient Overreach Concerns and Solutions for Distance Relaying Daqing Hou and Jeff Roberts Schweitzer Engineering Laboratories, Inc. Revised edition released October 2010 Previously presented at the 1996 Canadian
Study on Line-Break Ferro-Resonance Over-voltage of 35kV Power System and Its Suppression …
Under certain conditions, these elements can form different resonant circuit, cause resonance over-voltage phenomenon, endanger the insulation of the system. In this paper, on the basis of one copper mining company 35kV power supply system, it''s carried out the resonance over-voltage studies, reach conclusion about the general rules …
Commutated-Phase Resonance Suppression in Synchronous
It can be concluded that avoiding the resonant loop formed by L 1, Q 1, and Q 2 at the moment of input voltage phase change can effectively realize the suppression …
MKPH Capacitors For Induction cooker High Voltage Resonance …
MKPH Capacitors For Induction cooker High Voltage Resonance Series Description： The products are made of temperature-resistant metalized polypropylene film, both side thickened metalized electrode, non-inductive construction, DV/DT full inspection testing, full automatic production.
STB intelligent harmonic suppression capacitor
STB intelligent harmonic suppression capacitor - double capacitive reactance-Sitabo Power Technology (Hangzhou) Co., Ltd.-STB series intelligent harmonic suppression integrated power capacitor compensation device (hereinafter referred to as intelligent ...
Development and Characterization of Resonant Capacitors and …
A new class of Switch Tank Converters (STC) have been developed to achieve more efficient step down (up) power conversion for the next-generation 48V bus conversion on data center server boards. A 98.92% efficiency STC product evaluation board (4-to-1, 650W) was developed and demonstrated. The STCs uniquely employ LC resonant tanks to …
KEMET R53 X2 Capacitors
The R53 X2 capacitors series polypropylene film EMI suppression capacitors are uniquely positioned to meet these demanding requirements. What Are EMI Suppression Capacitors? EMI suppression capacitors are a specialized subset of commercially available capacitors that are designed for filtering electrical noise out of the …
An active damping control strategy with improved transient performance for high‐frequency AC power distribution in intelligent …
High-frequency AC (HFAC) LCLC resonant inverter has recently received more and more attention in power distribution system (PDS) of intelligent vehicles. However, LCLC resonance complicates the design of a current control loop and can even threaten the stability and transient performance of PDS.
An active damping control strategy with improved transient …
In this paper, a notch filter-based AD (NFAD) control strategy is proposed to improve the stability and transient performance of PDS for intelligent vehicles. By …
Design of a novel hybrid control strategy for multi‐inverter parallel ...
Through increasing zero point of control system''s transfer function to enhance damping coefficient of resonance peak, all of them have better resonance …
Resonance Suppression Between Line Inductor and DC-Link Capacitor
3.2.2 Direct Damping Current to Stabilize Drive SystemAs the PFC circuit is eliminated in the reduced DC-link capacitance motor drive system, the resonance between the line inductor and the film capacitor will affect …
Parallel Resonance Mechanism Analysis and Suppression of Inductance-Capacitance …
Energies 2019, 12, 1656 5 of 15 222 2 220 20 1 100 20 22 00 2 2( )[ (10 ) ] 10 [(10)] fo M fo T G c rc c c M i1 T PWM 2 PWM c c M c fL L ff ff f ftanP H K KfftanP f f f π π −− − ≤≤ ...
Analysis and mitigation of subsynchronous resonance …
However, the addition of series capacitors in the line may lead to a potential risk of subsynchronous resonance (SSR) to the system []. The SSR phenomena is divided into three types in existing literature: …
Low‐frequency harmonic resonance analysis and suppression …
In this study, the equivalent model of MMC is established to reveal the low-frequency harmonic resonance, including intrinsic harmonic resonance and potential …
Predictive Control of Modular Multilevel Converters: Adaptive Hybrid Framework for Circulating Current and Capacitor Voltage Fluctuation Suppression
Modular multilevel converters (MMCs) are widely used in voltage-sourced, converter-based high-voltage DC systems due to their modular design, scalability, and fault tolerance capabilities. In MMCs, multi-variable control objectives can be employed by using model predictive control (MPC) due to its fast dynamic response and ease of …
Review of very high frequency power converters and related …
Resonant power converters with soft-switching characteristics are preferred in VHF operation. According to current research lines, three topologies are mainly …
Parallel Resonance Mechanism Analysis and Suppression of Inductance-Capacitance …
Parallel Resonance Mechanism Analysis and Suppression of Inductance-Capacitance-Inductance Grid-Connected Inverters April 2019 Energies 12(9):1656 DOI:10. ...
Performance assessment of distance protection fed by capacitor …
Ferroresonance suppression circuit (FSC) as an important portion of capacitor voltage transformer (CVT) has a vital role in the prevention of overvoltages. …
Capacitor Solutions for Resonant Converter Applications
Resonant Capacitor：C0G Mid Voltage Series Appearance Line UP Automotive grade Based upon AEC-Q200 LW Size mm (inch) T.C. Capacitance Range (F) 3.9n 4.7n 5.6n 6.8n 8.2n 10n 15n 22n 33n 3216 (1206) C0G 630V 630V 630V 630V 630V 630V 3225
EMI suppression filters 8
6-5-4. Skillfully using capacitors (1) Adjust the self-resonant frequency with the frequency of the noise as a guide The impedance of a capacitor is the minimum point of its self-resonant frequency. This may be a smaller value than that of the ideal capacitor at this ...