scholarly journals Research on Output Waveform of Generator with Rectifier Load considering Commutation Overlap Angle

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Bingyi Zhang ◽  
Gongfei He ◽  
Guihong Feng
Keyword(s):  
Circuit Simulation ◽  
Harmonic Distortion ◽  
Simulation Method ◽  
Conduction Time ◽  
Current Waveform ◽  
Voltage Waveform ◽  
Rectifier Circuit ◽  
Output Waveform ◽  
Output Side ◽  
Distortion Rate

The purpose of this paper is to study the influence of the uncontrolled rectifier circuit on the generator’s output waveform when considering the commutation overlap angle. Taking the nonsalient permanent magnet (PM) generator directly connected with the uncontrolled rectifier circuit as an example, the equivalent circuit of the generator with rectifier load is established, and the commutation process of the rectifier circuit is analyzed when the effect of the commutation overlap angle is considered. The output waveforms of generator’s output side are obtained by analytical method, circuit simulation method, field-circuit coupled simulation method, and experimental method. The validity of the analysis methods is demonstrated by comparison. According to the results of analytical analysis, we know the characteristics of the output waveform under the influence of the commutation overlap angle. The existence of the commutation overlap angle will cause the voltage waveform to concave or convex, prolong the conduction time of the winding, and result in phase difference between the voltage waveform and current waveform. The influence of synchronous inductance and extra inductance on the output waveforms and harmonic distortion rate is analyzed. The research of this paper provides a theoretical basis for improving the output waveform of the generator with rectifier load.

scholarly journals Modeling and Analysis of a Cascaded Battery-Boost Multilevel Inverter Using Different Switching Angle Arrangement Techniques

2017 ◽  
Vol 7 (2) ◽  
pp. 1450-1454 ◽  
Author(s):  
U. B. Tayab ◽  
M. A. Al Humayun
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulation ◽  
Harmonic Distortion ◽  
Total Harmonic Distortion ◽  
Current Waveform ◽  
Modeling And Analysis ◽  
Multilevel Inverters ◽  
Output Waveform ◽  
Photovoltaic Applications ◽  
Modern Era

Multilevel inverters have the capability to produce an AC staircase output waveform without using a bulky passive filter. Therefore, the multilevel inverters are gaining more and more popularity, among the different types of inverters, for photovoltaic applications in the modern era of technology. However, if the switching angle arrangement technique is not selected appropriately then the total harmonic distortion of the voltage output waveform may become undesirable. In this paper, Half-Equal-Phase, Feed-Forward and Selective Harmonics Elimination Pulse Width Modulation switching angle arrangement techniques at different power factors (i.e., 1.0, 0.75 and 0.50) are applied to a cascaded battery-boost inverter. PSIM software is used to evaluate and compare the performance of a 9-level cascaded battery-boost inverter with three switching angle arrangement techniques at power factors of 1.0, 0.75, and 0.50, respectively. Simulation results show that the Selective Harmonics Elimination Pulse Width Modulation technique can produce an output voltage and current waveform with the lowest total harmonic distortion. On the other hand, the output current waveform produced by power factor 0.50 had the lowest total harmonic distortion.

The Application of Fault Injection Using Circuit Simulation in Testability Verification

2013 ◽  
Vol 347-350 ◽  
pp. 937-941
Author(s):  
Yuan Wei Yin ◽  
Chao Xuan Shang ◽  
Yan Heng Ma ◽  
Gang Li
Keyword(s):  
Fault Injection ◽  
Circuit Simulation ◽  
Simulation Method ◽  
Structure And Function ◽  
Injection System ◽  
Injection Method ◽  
Injection Technology ◽  
And Function

The fault injection technology is an important aspect in testability verification, because the actual fault injection in equipment can damage itself, so using circuit simulation fault injection method to instead. Research on the simulation method that based on PSPICE, using VC++ software to design a simulated fault injection system, its structure and function to achieve workflow introduced. Finally, taking a circuit for example uses the system to fault injection and analysis to prove the availability and correctness of the system.

Simulation and Analysis of Novel Extendable Multilevel Inverter Topology

2019 ◽  
Vol 28 (06) ◽  
pp. 1950089 ◽  
Author(s):  
V. Thiyagarajan ◽  
P. Somasundaram ◽  
K. Ramash Kumar
Keyword(s):  
Single Phase ◽  
Harmonic Distortion ◽  
Multilevel Inverter ◽  
Voltage Waveform ◽  
Dc Voltage ◽  
Switching Losses ◽  
Comparison Results ◽  
Symmetrical Condition ◽  
Gate Driver ◽  
Inverter Topology

Multilevel inverter (MLI) has become more popular in high power, high voltage industries owing to its high quality output voltage waveform. This paper proposes a novel single phase extendable type MLI topology. The term ‘extendable’ is included since the presented topology can be extended with maximum number of dc voltage sources to synthesize larger output levels. This topology can be operated in both symmetrical and asymmetrical conditions. The major advantages of the proposed inverter topology include minimum switching components, reduced gate driver circuits, less harmonic distortion and reduced switching losses. The comparative analysis based on the number of switches, dc voltage sources and conduction switches between the proposed topology and other existing topologies is presented in this paper. The comparison results show that the proposed inverter topology requires fewer components. The performance of the proposed MLI topology has been analyzed in both symmetrical and asymmetrical conditions. The simulation model is developed using MATLAB/SIMULINK software to verify the performance of the proposed inverter topology and also the feasibility of the presented topology during the symmetrical condition has been validated experimentally.

A Carrier-Transit-Delay-Based Nonquasi-Static MOSFET Model for Circuit Simulation and Its Application to Harmonic Distortion Analysis

2006 ◽  
Vol 53 (9) ◽  
pp. 2025-2034 ◽  
Author(s):  
D. Navarro ◽  
Y. Takeda ◽  
M. Miyake ◽  
N. Nakayama ◽  
K. Machida ◽  
...  
Keyword(s):  
Circuit Simulation ◽  
Harmonic Distortion ◽  
Distortion Analysis ◽  
Transit Delay

scholarly journals Distributed Circuit Simulation using Combined Simulation Method

2019 ◽  
Vol 1325 ◽  
pp. 012197
Author(s):  
Chen-Jung Chen ◽  
Tai-Ning Yang ◽  
Chih-Jen Lee ◽  
Jen-Dong Sun ◽  
Sheng-Hsuan Hsu
Keyword(s):  
Circuit Simulation ◽  
Simulation Method ◽  
Combined Simulation

Analysis on Equivalence between Transfer Function and Equivalent Circuit Simulation in General Hamiltonian Modeling

2012 ◽  
Vol 204-208 ◽  
pp. 4896-4899
Author(s):  
Jing Qian ◽  
Yun Zeng ◽  
Li Xiang Zhang ◽  
Tian Mao Xu
Keyword(s):  
Transfer Function ◽  
Equivalent Circuit ◽  
Circuit Simulation ◽  
Hamiltonian Function ◽  
Simulation Method ◽  
Generator System ◽  
Time Simulation ◽  
Internal Parameters ◽  
Hamiltonian Model ◽  
System Stabilizer

Take generator system included AVR (automatic voltage regulator) and PSS (power system stabilizer) as an example, Using the time simulation method, Study the equivalence between the transfer function model and the equivalent circuit simulation, and establish the corresponding relations between the circuit structures, internal parameters and transfer function parameters, based on the energy of equivalent circuit, the Hamiltonian function of transfer function is derived indirectly, and the Hamiltonian model is established. The study in this paper provides a new way to establish generalized Hamiltonian model for linear system based on transfer function.

A New Algorithm for Isomorphism Determination of Undirected Graphs-Circuit Simulation Method

2010 ◽  
Vol 30 (5) ◽  
pp. 1115-1130 ◽  
Author(s):  
Huiliang Shang ◽  
Feng Li ◽  
XianDing Tang ◽  
Peng-Yung Woo
Keyword(s):  
Circuit Simulation ◽  
Simulation Method ◽  
Undirected Graphs

scholarly journals Effect of transition section between the main switch and middle cylinder of Blumlein pulse forming line on the diode voltage of intense electron-beam accelerators

2009 ◽  
Vol 27 (3) ◽  
pp. 439-447 ◽  
Author(s):  
X.-B. Cheng ◽  
J.-L. Liu ◽  
B.-L. Qian ◽  
J.-D. Zhang
Keyword(s):  
Electron Beam ◽  
Rise Time ◽  
Circuit Simulation ◽  
Voltage Waveform ◽  
Transition Section ◽  
Intense Electron Beam ◽  
Plateau Time ◽  
Matching Load ◽  
Intense Electron ◽  
Diode Voltage

AbstractThe rise-time of the pulse on the diode of the intense electron-beam accelerators (IEBA) is one of the important factors that affect the quality and characteristic of the output beam current of the IEBA. In this paper, effect of the transition section between the main switch and middle cylinder of strip spiral Blumlein line (SSBL) on the diode voltage of IEBA is analyzed in theory, based on the theoretical analysis of the wave propagation along the Blumlein pulse forming line (BPFL), the traveling time of the transition section has a great effect on the rise-time, the plateau-time, and the fall-time of the output voltage at the matching load. Furthermore, the operation of the whole accelerator consisting of the primary energy-storage capacitor, the Tesla transformer, a main switch, the transition section, BPFL, and a resistive load was simulated using a circuit-simulation code called PSpice, and the dependence of the output voltage on the inductance of the main switch and the transition section was obtained. It was found from the wave propagation theory and the circuit simulation using computer results that the wave traveling time of the transition section between the main switch and the middle cylinder of the SSBL influences considerably the rise-time, plateau-time, and fall-time of the voltage waveform at the matching load. In order to get an ideal square pulse voltage waveform at the matching load and to improve the electron beam quality of such an accelerator, the wave traveling time of the transition section should be designed as soon as possible. At last, a couple of contrastive experiments are performed on two kinds of IEBA. The experimental results agree with the theoretical analysis and simulated results.

Sign in / Sign up

Export Citation Format

Share Document