Hybrid battery-supercapacitor mathematical modeling for PV application using Matlab/Simulink

2018 ◽  
Author(s):  
Maria C. Argyrou ◽  
Paul Christodoulides ◽  
Christos C. Marouchos ◽  
Soteris A. Kalogirou
Keyword(s):  
Mathematical Modeling ◽  
Matlab Simulink

Mathematical Modeling of a Two Spool Flow Control Servovalve Using a Pressure Control Pilot1

2002 ◽  
Vol 124 (3) ◽  
pp. 420-427 ◽  
Author(s):  
Randall T. Anderson ◽  
Perry Y. Li
Keyword(s):  
Mathematical Modeling ◽  
Flow Control ◽  
Dynamic Model ◽  
Nonlinear Dynamic ◽  
Pressure Control ◽  
Dynamic Effects ◽  
Nonlinear Dynamic Model ◽  
Two Stage ◽  
Matlab Simulink ◽  
Proposed Model

A nonlinear dynamic model for an unconventional, commercially available electrohydraulic flow control servovalve is presented. The two stage valve differs from the conventional servovalve design in that: it uses a pressure control pilot stage; the boost stage uses two spools, instead of a single spool, to meter flow into and out of the valve separately; and it does not require a feedback wire and ball. Consequently, the valve is significantly less expensive. The proposed model captures the nonlinear and dynamic effects. The model has been coded in Matlab/Simulink and experimentally validated.

scholarly journals Mathematical modeling of a strain gauge measurement system in MATLAB SIMULINK program

2020 ◽  
Vol 6 (2) ◽  
pp. 85-93
Author(s):  
Timur A. Raianov
Keyword(s):  
Mathematical Modeling ◽  
Measurement System ◽  
Strain Gauge ◽  
System Analysis ◽  
Force Measurement ◽  
Operating Conditions ◽  
Matlab Simulink ◽  
Software Model ◽  
Output Characteristics ◽  
Gauge Measurement

Background: In recent years, modern strain gauge systems for measuring, which are used in automobile, railway, aviation, and ship transport, as well as in the pulp, paper, and metallurgical industries, have become extremely popular. These metrological systems provide accurate measurement in difficult operating conditions. The most popular among sensors are strain gauges, they are increasingly used in various areas of marine operations and legal proceedings. They are the optimal solution in the field of torque measurement. Aim: The program creates a model of a strain gauge measurement system. Analysis of power output characteristics. Methods: The article describes the construction of a mathematical model of the strain gauge measurement system. The MATLAB SIMULINK library was used for simulation. The work is based on mathematical modeling and is aimed at creating a computer-based strain gauge model. The output characteristics are analyzed. The accuracy of the software model measurement was verified by checking the convergence of the actual and measured values. Results: A software model of the strain gauge force measurement system was created to create a real computer strain gauge measurement system. Output characteristics are obtained. Conclusions: A software model of the strain gauge measurement system is proposed; The output characteristics were studied and the measurement accuracy was checked.

scholarly journals MANEUVERING PERFORMANCE OF A 30 GT FISHING VESSEL WITH ASYMMERICAL PROPELLER CONFIGURATION

2018 ◽  
Vol 9 (2) ◽  
pp. 491-498
Author(s):  
Andi Haris Muhammad ◽  
. Syarifuddin ◽  
Daeng Paroka ◽  
Sabaruddin Rahman ◽  
. Wisyono ◽  
...  
Keyword(s):  
Mathematical Modeling ◽  
Mathematical Model ◽  
Simulation Program ◽  
Fishing Vessel ◽  
Matlab Simulink ◽  
Fishing Vessels ◽  
Modeling Group ◽  
Left And Right ◽  
The Mathematical Model

Fishing vessels are designed with a specific mission. That mission is to locate, catch, and preserve fish while out at sea, meanwhile the vessel needed to have good maneuverability. This research describes a study on asymmetrical propeller configuration of a fishing vessel to improve its maneuvering quality. MATLAB-simulink program was used to simulate, the turning circle and the zigzag maneuvers. The simulation program was developed based on the mathematical model for a fishing vessel maneuvering. The mathematical model involved the setting-up a 3 DOF (Degres of Freedom) mathematical model in a modular of MMG (Mathematical Modeling Group) of the hull, propeller and rudder component. The result indicated that twin propeller with asymmetrical had an advantages of turning circle ability of 8% to 14 %, meanwhile the zigzag maneuver 20°/20° had 9 to 20 % 1st overshoot different between left and right heading.                                                                                         Keywords: Configuration, propeller, assymetrical, fisheries, simulation

scholarly journals A study of the features of the phenomenon of ferroresonance in electrical networks of 6–35 kV based on mathematical modeling

2021 ◽  
pp. 59-68
Author(s):  
Aleksandr V. POPUGAYEV ◽  
Keyword(s):  
Mathematical Modeling ◽  
Negative Impact ◽  
Practical Importance ◽  
Electrical Networks ◽  
Matlab Simulink ◽  
Electrical Systems

Objective: To analyze the existing circuitry solutions in order to prevent ferroresonance phenomena. Simulate the phenomenon of ferroresonance in MATLAB Simulink to reduce its negative impact on electrical systems. Methods: The applied methods are based on the analysis, synthesis and mathe- matical modeling of electrical systems in the event of ferroresonance. Results: The necessity of im- proving circuitry solutions to prevent ferroresonance phenomena is shown. The possibility of using the modeling of ferroresonance phenomena in the MATLAB Simulink environment is shown in order to reduce the negative impact of ferroresonance and increase the reliability of the operation of elec- trical systems. Practical importance: When simulating in the MATLAB Simulink environment, you can get results that will allow you to develop measures to reduce the negative impact of ferroresonance on electrical systems.

scholarly journals Penerapan Fisika Komputasi dengan MATLAB/Simulink pada Pemodelan Infeksi Wabah COVID-19 di Indonesia melalui Modifikasi Persamaan Differensial Bernoulli

2020 ◽  
Vol 8 (2) ◽  
pp. 233-244
Author(s):  
Valentinus Galih Vidia Putra ◽  
◽  
Andrian Wijayono ◽  
Juliany Ningsih Mohamad ◽  
Irwan Irwan ◽  
...  
Keyword(s):  
Mathematical Modeling ◽  
Differential Equation ◽  
Differential Equations ◽  
Bernoulli Equation ◽  
Mathematical Equation ◽  
Matlab Simulink

The application of physics, in particular, the topic of differential equations is commonly used in mathematics, physics, engineering, and various other sciences to explain a phenomenon in a system, to produce a form of simulation and prediction of a fairly good mathematical equation is needed. This paper examines the use of MATLAB / Simulink to assist in modeling the solution of the differential equation problems by providing a case of mathematical modeling in the analysis of the COVID-19 plague in Indonesia in 2020 with the modification of the Bernoulli equation. In this study, it can be concluded that MATLAB / Simulink can be used to solve differential equation problems with Bernoulli's modification in the case of COVID-19 plague modeling quite accurately.

scholarly journals Mathematical Modeling and Analysis of Different Vector Controlled CSI Fed 3-Phase Induction Motor Drive

2014 ◽  
Vol 2014 ◽  
pp. 1-13 ◽  
Author(s):  
Arul Prasanna Mark ◽  
Rajasekaran Vairamani ◽  
Gerald Christopher Raj Irudayaraj
Keyword(s):  
Mathematical Modeling ◽  
Vector Control ◽  
Induction Motor ◽  
Control Method ◽  
Direct Torque Control ◽  
Torque Control ◽  
Motor Drive ◽  
Control Methods ◽  
Matlab Simulink ◽  
Dynamic Performances

The main objective of this paper is to build a simple mathematical competent model that describes the circuits and interconnections of a 3-phase squirrel cage induction motor used for industrial applications. This paper presents the detailed analysis of theoretical concepts used in mathematical modeling, simulation’ and hardware implementation. The objective of this work is to compare the dynamic performances of the vector control methods for CSI fed IM drives. Based on the results, dynamic performances of the proposed drives are individually analysed using the sensitivity tests. The tests that are chosen for the comparison are step changes in the reference speed and torque of the motor drive. Here the IM is mathematically modeled in different reference frames for input output linearization (IOL) control, field oriented control (FOC), and direct torque control method (DTC) which are designed using hardware equivalent mathematical equations. The most important contributions in this paper are mathematical simulation structure of IM model in rotor flux frame using current and speed that were developed and implemented in MATLAB-Simulink. The operation and performance of the different vector control methods are verified by simulation using MATLAB/SIMULINK and experimental results.

scholarly journals Behavioral Characteristics of Photovoltaic Cell with Different Irradiation in Matlab/Simuling/Simscape Environment

2014 ◽  
Vol 36 ◽  
pp. 316-326 ◽  
Author(s):  
Hamisu Usman ◽  
S.M. Lawal ◽  
R.S. Shehu
Keyword(s):  
Mathematical Modeling ◽  
Carbon Dioxide ◽  
Electricity Generation ◽  
System Simulation ◽  
Photovoltaic Cell ◽  
Behavioral Characteristics ◽  
Pv System ◽  
Matlab Simulink ◽  
Proposed Model ◽  
Simulation Results

Photovoltaic technology is one of the fastest growing energy among the different type of renewable energies that are available for electricity generation. This is due to the availability of the natural sun rise, and the non polluted energy that is free from emission of carbon dioxide (CO2). This paper presents a typical modeling of photovoltaic cell under different irradiations level, in order to monitor the behavior of the (Voltage-Current) V-I and (Power-Voltage) P-V characteristics. The simulation of the proposed model was performed in MATLAB/SIMULINK and Simscape environment. Single diode model of the PV system was presented in the mathematical modeling of the proposed system. Simulation results of different I-V and P-V characteristics were also presented.

Mathematical Modeling of DC-DC Converters and Li Ion Battery Using MATLAB/Simulink

2021 ◽  
pp. 104-143
Author(s):  
Sumukh Surya
Keyword(s):  
Mathematical Modeling ◽  
Adverse Effect ◽  
Output Voltage ◽  
Battery Modeling ◽  
Matlab Simulink ◽  
Boost Converters ◽  
Pulse Charging ◽  
Li Ion ◽  
Polymer Battery ◽  
Conduction Mode

In the present work, three different methods for obtaining the DC response for modeling practical DC-DC buck and boost converters operating in continuous conduction mode (CCM) are demonstrated using MATLAB/Simulink. The method of selection for inductor, diode, and MOSFET for a DC-DC converter is discussed in detail. The governing equations for the non-ideal converters were derived using volt-sec and amp-sec balance equations. Mathematical modeling of basic converters was carried out using ‘commonly used blocks' reducing the dependence on SimPower System tool box in Simulink. The non-ideal parameters in the converter caused a drastic variation in the duty cycle and output voltage which in turn had an adverse effect on the efficiency. The transients in output voltages and inductor currents were observed. In addition, a Li ion polymer battery was mathematically modeled. Accurate battery modeling for pulse charging was proposed. A comparative analysis of 1, 2, …, 5 RC pair/s modeling of the battery was presented.

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