scholarly journals Improved Sampling in Carrier-Based Discountinuous SVPWM Simulation

2020 ◽  
Vol 2 (3) ◽  
pp. 137
Author(s):  
Okik Surikno ◽  
Tole Sutikno
Keyword(s):  
Block Diagram ◽  
Previous Calculation ◽  
Quartus Ii ◽  
Reference Signals ◽  
Simulation Results

In this study, a circuit was designed to improve sampling in discontinuous SVPWM simulations using Quartus II software. The v_beta_sin unit was successfully simulated using the waveform editor. The results displayed are in accordance with previous calculations, if the input is 000000001 then the output is 100000011 and so on. The v_alfa_cos unit is also successfully simulated using the waveform editor. The simulation results if the input is 000000001 then the output is 111111111 and so on, according to the previous calculation. The unit counter was successfully simulated using the block diagram in Quartus II. The output of this unit counter is in the form of 9 bits to retrieve v_beta_sin and v_alfa_cos data. The v_beta_sin, v_alfa_cos and counter units used as reference signals are successfully simulated and can be used as a supporting circuit in the simulation of the discontinuous SVPWM method. The results of the simulation show an increase in sampling or sampling by 512.

ACTIVE TRACKING CONTROL OF THE HYPERCHAOTIC LORENZ SYSTEM

2008 ◽  
Vol 22 (19) ◽  
pp. 1859-1865 ◽  
Author(s):  
XINGYUAN WANG ◽  
DAHAI NIU ◽  
MINGJUN WANG
Keyword(s):  
Numerical Simulation ◽  
Tracking Control ◽  
Chaotic Systems ◽  
Lorenz System ◽  
The Self ◽  
Hyperchaotic System ◽  
Reference Signals ◽  
Tracking Controller ◽  
Hyperchaotic Lorenz System ◽  
Simulation Results

A nonlinear active tracking controller for the four-dimensional hyperchaotic Lorenz system is designed in the paper. The controller enables this hyperchaotic system to track all kinds of reference signals, such as the sinusoidal signal. The self-synchronization of the hyperchaotic Lorenz system and the different-structure synchronization with other chaotic systems can also be realized. Numerical simulation results show the effectiveness of the controller.

A High Speed 8B/10B Encoder/Decoder Design Based on Low Cost FPGA

2012 ◽  
Vol 462 ◽  
pp. 361-367 ◽  
Author(s):  
Zhang Jin Chen ◽  
Guo Hai Zhong ◽  
Zhuo Bi
Keyword(s):  
High Speed ◽  
Single Channel ◽  
Low Cost ◽  
Maximum Frequency ◽  
Clock Frequency ◽  
Parallel Pipeline ◽  
Quartus Ii ◽  
Simulation Results ◽  
Decoder Design ◽  
Timing Simulation

A high speed 8B/10B Encoder/Decoder is presented in this paper. The Encoder/Decoder is based on Altera’s low cost FPGA Cyclone family. The Encoder/Decoder includes parallel pipeline structure. The Encoder/Decoder is applied to the Serializer/Deserializer (SERDES) of high-speed serial bus. The Encoder/Decoder is synthesized and simulated by Quartus II 9.1. The synthesis and analysis results show the maximum frequency is more than 359MHz. The timing simulation results show the clock frequency is more than 125 MHz. The single channel data rate of serial bus can get to 1.25Gbps. The proposed Encoder/Decoder can meet the requirements of most high-speed serial bus.

Field Programmable Gate Array (FPGA) Based Microwave Oven

2019 ◽  
Vol 892 ◽  
pp. 120-126
Author(s):  
Thangavel Bhuvaneswari ◽  
Nor Hidayati Abdul Aziz ◽  
Jakir Hossen ◽  
Chinthakunta Venkataseshaiah
Keyword(s):  
Real Time ◽  
Field Programmable Gate Array ◽  
Controller Design ◽  
Microwave Oven ◽  
High Potential ◽  
Verilog Hdl ◽  
Quartus Ii ◽  
Field Programmable ◽  
Real Time Applications ◽  
Simulation Results

In this paper, an FPGA-based microwave oven controller design which can be implemented using Altera DE1 development board is presented. The motivation for this work is to explore FPGA for real time applications. First, a microwave oven controller design architecture that could fit into Altera DE1 board, utilizing on-board peripherals is developed. Then, using the proposed architecture, the design is implemented using Verilog HDL. The microwave oven functionalities are demonstrated using Altera DE1 development board by means of Quartus II 13.0 software. The testbenches are created and waveforms are generated using Modelsim 10.1d software. The simulation results for various cases have been presented and the results confirmed that all the basic functionalities of a practical microwave oven can be realized. The proposed FPGA based controller has a high potential for incorporation in microwave ovens.

scholarly journals Design of Hydro Power by Using Turbines Kaplan on The Discharge Channel Paiton 1 and 2

2018 ◽  
Vol 42 ◽  
pp. 01008
Author(s):  
Alvin K. Sosilo ◽  
Harsono Hadi ◽  
Totok Soehartanto
Keyword(s):  
Discharge Channel ◽  
Block Diagram ◽  
Mechanical Energy ◽  
Mechanical Power ◽  
Hydro Power ◽  
Kaplan Turbine ◽  
Turbine Performance ◽  
Power Turbine ◽  
Simulation Results ◽  
The Relationship

Condenser water from the discharge channel PJB Paiton discharged to the sea has the potential mechanical energy, because the flow rate of 7.6 m3 / s (if both discharge PJB Paiton function) and the discharge channel reaches a height of 4m. This paper will describe the design of hydro power (in the form of a block diagram) by using Kaplan turbine driven by utilizing the wastewater condenser. Kaplan turbine performance represented in the form of the relationship between the incoming water flow and the pitch angle (the angle between the propellers with a hub) to the torque generated. The simulation results indicate that the turbine torque is proportional to the mechanical power turbine. The greater the torque, the greater the mechanical power, and vice versa.

EQUIPMENT CONDITION MODELING BASED ON RANDOM FOREST AND ARIMA MACHINE LEARNING ALGORITHM STACKING

2020 ◽  
Vol 4 (97) ◽  
pp. 32-40
Author(s):  
EVGENY V. ERSHOV ◽  
OLGA V. YUDINA ◽  
LYUDMILA N. VINOGRADOVA ◽  
NIKITA I. SHAKHANOV
Keyword(s):  
Machine Learning ◽  
Random Forest ◽  
Learning Algorithm ◽  
Block Diagram ◽  
Approaches To Learning ◽  
Machine Learning Algorithm ◽  
Industrial Equipment ◽  
Condition Modeling ◽  
Simulation Results ◽  
Using Data

The article discusses algorithms for constructing predicative models of the industrial equipment condition using data analysis and machine learning. The model is based on Random Forest (RF) and ARIMA (AR) algorithms. The authors consider approaches to learning algorithms and optimizing parameters. A block diagram of a time series predictive model applying stacking is presented, as well as an assessment of the simulation results.

Output Regulation of the Liu Chaotic System

2011 ◽  
Vol 110-116 ◽  
pp. 3982-3989 ◽  
Author(s):  
Vaidyanathan Sundarapandian
Keyword(s):  
Feedback Control ◽  
Control Systems ◽  
Chaotic System ◽  
State Feedback ◽  
Output Regulation ◽  
State Feedback Control ◽  
Nonlinear Control Systems ◽  
Control Laws ◽  
Reference Signals ◽  
Simulation Results

This paper investigates the problem of regulating the output of the Liu chaotic system (2004). Explicitly, we construct state feedback control laws to regulate the Liu chaotic system so as to track constant reference signals. The control laws are derived using the regulator equations of Byrnes and Isidori (1990), who have solved the output regulation of nonlinear control systems using neutrally stable exosystem dynamics. The simulation results are also discussed in detail.

NN-Based Block Adaptive Backstepping Control of Induction Motor

2011 ◽  
Vol 268-270 ◽  
pp. 528-533
Author(s):  
Hai Yan Li ◽  
Yun An Hu
Keyword(s):  
Induction Motor ◽  
Induction Motors ◽  
Lyapunov Theory ◽  
Control Law ◽  
Rotor Speed ◽  
Backstepping Method ◽  
Adaptive Backstepping ◽  
Reference Signals ◽  
Simulation Results ◽  
The Stability

Based on the model of induction motors in field-oriented coordinates, a block adaptive backstepping method is used to design a controller for induction motor. The control law and parameter updating law are derived using Lyapunov theory, which guarantees the stability of the whole system. The proposed approach can track the rotor speed and flux reference signals under parameter and load uncertainties. Simulation results show the effectiveness of the proposed approach.

scholarly journals Modified PWM Technique for Harmonic Reduction

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Alireza Hoseinpour ◽  
Reza Ghazi
Keyword(s):  
Control Strategy ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Reference Signal ◽  
Space Vector Modulation ◽  
Shunt Active Filter ◽  
Harmonic Reduction ◽  
Reference Signals ◽  
Simulation Results ◽  
Vector Modulation

This paper presents a Shunt Active Filter (SAF) based on the Variable Index Pulse Width Modulation approach. In the proposed method of Pulse Width Modulation (PWM), the triangular wave is derived by integration of the reference signals. This method introduces two basic advantages; the first one is that the triangular signal contains the information of the signal to be obtained in output and the second advantage is that its amplitude is varied in proportion to the amplitude of the reference signal. Therefore, in this PWM method, the modulation index is varied according to the variation of the reference signal, so it is termed as Variable Index Pulse Width Modulation. In order to demonstrate the validity of the proposed method, the obtained simulation results are compared with results of the Space Vector Modulation (SVM) approach. Furthermore, it is shown that in the case of nonsinusoidal voltages, the SAF with the proposed control strategy can provide the filtering action. This method is quite easy to implement and requires lower circuitry. The results show that the proposed method can satisfy the IEEE-519 standard regarding the reduction of harmonics.

scholarly journals Circuit Realization of a 3D Multistability Chaotic System and Its Synchronization via Linear Resistor and Linear Capacitor in Parallel Coupling

Complexity ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Xikui Hu ◽  
Ping Zhou
Keyword(s):  
Chaotic System ◽  
Output Voltage ◽  
Electronic Circuit ◽  
Block Diagram ◽  
Circuit Realization ◽  
Simulation Results ◽  
Chaotic Electronic Circuit

In this paper, a 3D multistability chaotic system with two coexisting conditional symmetric attractors is studied by using a circuit block diagram and realized by using an electronic circuit. The simulation results show that two coexisting conditional symmetric attractors are emerged in this electronic circuit. Furthermore, synchronization of this 3D multistability chaotic system and its electronic circuit is studied. It shows that linear resistor and linear capacitor in parallel coupling can achieve synchronization in this chaotic electronic circuit. That is, the output voltage of chaotic electronic circuit is coupled via one linear resistor and one linear capacitor in parallel coupling. The simulation results verify that synchronization of the chaotic electronic circuit can be achieved.

scholarly journals SRS-lidar for environmental monitoring atmospheric surface layers

2019 ◽  
Keyword(s):  
Environmental Monitoring ◽  
Remote Monitoring ◽  
Block Diagram ◽  
Gas Composition ◽  
Surface Layers ◽  
Spontaneous Raman Scattering ◽  
Accumulation Time ◽  
Industrial Enterprises ◽  
Simulation Results ◽  
Industrial Zones

Background: The development and implementation of new methods of environmental monitoring is an urgent problem due to the technogenic pollution of the Earth's biosphere. The remote control of the gas composition of the surface atmosphere layer in industrial zones of modern metropolis is important for determining penalties for enterprises whose emissions of pollutants exceed established norms. Objectives: Development of an ecological Spontaneous Raman Scattering (SRS) lidar for monitoring the gas composition in the air basin of large megacities. Theoretical verification of the lidar effectiveness for problem solving. Materials and methods: The developed lidar for environmental monitoring of the atmospheric surface layer is based on the SRS method which allows remote monitoring of the atmospheric gas composition at distances up to several kilometers with a fairly high resolution (up to 1 meter). The absolute concentration of detected polluting gases is determined by comparing the intensities of the satellite pollutant and nitrogen lines in the recorded SRS spectra. Results: The choice of the SRS method for remote laser monitoring of the atmosphere ground layer in large industrial centers is substantiated. The block diagram and the main technical characteristics of the developed SRS lidar are presented. Preliminary estimates of the lidar efficiency for the environmental monitoring were carried out. Conclusions: The simulation results have shown that the specifications of the SRS lidar allow detecting of following polluting gases: CO, NO2, SO2, CH4, H2S, C6H6 at distances up to 200 m with the maximum permissible concentration level. The simulation results were obtained when accumulation time varied from 10 s to 4 min. The specification of the SRS lidar allow its using for remote monitoring of air conditions in the cities and near industrial enterprises.

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