scholarly journals Fast‐converging robust PR‐P controller designed by using symmetrical pole placement method for current control of interleaved buck converter‐based PV emulator

2021 ◽  
Author(s):  
Cagfer Yanarates ◽  
Zhongfu Zhou
Keyword(s):  
Current Control ◽  
Buck Converter ◽  
Pole Placement ◽  
Placement Method

State Feedback Controller Using Pole Placement Method for Linear Buck Converter to Improve Overshoot and Settling Time

2015 ◽  
Vol 793 ◽  
pp. 211-215
Author(s):  
Mazwin Mazlan ◽  
Noor Haqkimi ◽  
Chanuri Charin ◽  
Nur Fairuz ◽  
Nurul Izni ◽  
...  
Keyword(s):  
Output Voltage ◽  
State Feedback ◽  
Input Voltage ◽  
Buck Converter ◽  
Pole Placement ◽  
Electronic Circuits ◽  
Solution Approach ◽  
Placement Method ◽  
Lqr Controller ◽  
Step Down

Switched mode DC-DC converters are electronic circuits which convert a voltage from one level to a higher or lower level voltage. This paper presents a new solution approach to controller and observer controller of DC-DC Buck converter. The designs in this paper of DC-DC Buck converter is input voltage 20V step down to 12V output voltage. For control the system simulation investigation into development of controller and observer controller using MATLAB Simulink® software. The simulation develops of the controller and observer controller with mathematical model of DC-DC Buck converter. This paper also providing LQR controller to compare the performance of the system. Finally, the performance output voltage of DC-DC Buck converter is analyzed in terms of time response, overshoot and steady state error.

scholarly journals Improved Self-Sensing Speed Control of IPMSM Drive Based on Cascaded Nonlinear Control

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2205
Author(s):  
Muhammad Usama ◽  
Jaehong Kim
Keyword(s):  
Fuzzy Logic Controller ◽  
Control Design ◽  
Speed Control ◽  
Current Control ◽  
The Self ◽  
Pole Placement ◽  
Motor Drive ◽  
Control Performance ◽  
Control Loop ◽  
Maximum Torque

This paper presents a nonlinear cascaded control design that has been developed to (1) improve the self-sensing speed control performance of an interior permanent magnet synchronous motor (IPMSM) drive by reducing its speed and torque ripples and its phase current harmonic distortion and (2) attain the maximum torque while utilizing the minimum drive current. The nonlinear cascaded control system consists of two nonlinear controls for the speed and current control loop. A fuzzy logic controller (FLC) is employed for the outer speed control loop to regulate the rotor shaft speed. Model predictive current control (MPCC) is utilized for the inner current control loop to regulate the drive phase currents. The nonlinear equation for the dq reference current is derived to implement the maximum torque per armature (MTPA) control to achieve the maximum torque while using the minimum current values. The model reference adaptive system (MRAS) was employed for the speed self-sensing mechanism. The self-sensing speed control performance of the IPMSM motor drive was compared with that of the traditional cascaded control schemes. The stability of the sensorless mechanism was studied using the pole placement method. The proposed nonlinear cascaded control was verified based on the simulation results. The robustness of the control design was ensured under various loads and in a wide speed range. The dynamic performance of the motor drive is improved while circumventing the need to tune the proportional-integral (PI) controller. The self-sensing speed control performance of the IPMSM drive was enhanced significantly by the designed cascaded control model.

scholarly journals Control of Pole-Climbing Robot Orientation using Self-Tuning Method

2018 ◽  
Vol 9 (3) ◽  
pp. 1029
Author(s):  
Muhammad Aziz Muslim ◽  
Goegoes Dwi Nusantoro ◽  
Rini Nur Hasanah ◽  
Mokhammad Hasyim Asy’ari
Keyword(s):  
Pole Placement ◽  
Original Position ◽  
Main Task ◽  
Climbing Robot ◽  
Positive Direction ◽  
Rotary Encoder ◽  
Tuning Method ◽  
Placement Method ◽  
Angle Change ◽  
Self Tuning

This paper describes the method to control a hybrid robot whose main task is to climb a pole to place an object on the top of the pole. The hybrid pole-climbing robot considered in this paper uses 2 Planetary PG36 DC-motors as actuators and an external rotary encoder sensor to provide a feedback on the change in robot orientation during the climbing movement. The orientation control of the pole-climbing robot using self-tuning method has been realized by identifying the transfer function of the actuator system under consideration, being followed with the calculation of control parameters using the self-tuning pole-placement method, and furthermore being implemented on the external rotary encoder sensor. Self-tuning pole-placement method has been explored to control the parameters q<sub>0</sub>, q<sub>1</sub>, q<sub>2</sub>, and p<sub>1</sub> of the controller. The experiments were done on a movement path in a form of a cylindrical pole. The first experiment was done based one the change in rotation angle of the rotary sensor with the angle values greater than 50˚ in the positive direction, whereas the second experiment was done with the angle values greater than -50˚ in the negative direction. The experiment results show that the control of the robot under consideration could maintain its original position at the time of angle change disturbance and that the robot could climb in a straight direction within the specified tolerance of orientation angle change.

scholarly journals A solar fed BLDC motor drive for mixer grinder using a buck converter

2020 ◽  
Vol 10 (2) ◽  
pp. 1113
Author(s):  
Deekshitha S. Nayak ◽  
R. Shivarudraswamy
Keyword(s):  
Load Condition ◽  
Performance Comparison ◽  
Current Control ◽  
Buck Converter ◽  
Small Scale ◽  
Motor Drive ◽  
Bldc Motor ◽  
Brushless Dc ◽  
Photovoltaic Array ◽  
Simulated System

In large and small scale applications, different kinds of variable speed driving systems can be found. For saving the energy consumption of these devices, eco-friendly electronics are used, which lead to the development of the Brushless DC motor (BLDC). Its higher power density, higher efficiency, higher torque at low speed, and low maintenance enhances the use of a BLDC motor. The existing mixer grinder consists of the universal motor, which operates in alternating current supply due to high starting torque characteristics and simple controlling of the speed. The absence of brushes and the reduction of noise in the BLDC extends its life and makes it ideal in a mixer grinder. A solar-powered BLDC motor drive for a mixer grinder is presented in this paper. A DC-DC buck converter is utilized to operate the PV (photovoltaic) array at its maximum power. The proposed hysteresis current control BLDC system has been developed in the MATLAB. The commercially available mixer grinder is presented along with the proposed simulated system for performance comparison. It can be concluded that at the no load condition, the efficiency of the experimental existing mixer grinder is 51.03% and simulated proposed system is 81.25% and at load condition, the efficiency of the experimental mixer grinder is 49.32% and simulated system is 79.85%.

scholarly journals The usage of Lambert W function for identification and speed control of a DC motor

2019 ◽  
Vol 32 (4) ◽  
pp. 581-600
Author(s):  
Radmila Gerov ◽  
Zoran Jovanovic
Keyword(s):  
Closed Loop ◽  
Dc Motor ◽  
Pole Placement ◽  
Step Response ◽  
Lambert W Function ◽  
Placement Method ◽  
Speed Regulation ◽  
Measured Speed ◽  
Proportional Controller ◽  
Integral Gain

The paper proposes a new method of identifying the linear model of a DC motor. The parameter estimation is based on the closed-loop step response of the DC motor under a proportional controller. For the application of the method, a deliberate delay of the measured speed was introduced. The paper considers the speed regulation of the direct current motor with negligible inductance by applying 1-DOF and 2-DOF, proportional integral retarded controllers. The proportional and integral gain of the PI retarded controllers was received by using a pole placement method on the identified model. The Lambert W function was applied for the identification and in designing the controller with the purpose of finding the rightmost poles of the closed-loop as well as the boundary conditions for selecting the gain of the PI controller. The robustness of the calculated controllers was considered under the effect of an disturbance, uncertainty in each of the DC motor parameters as well as perturbations in time delay.

Artificial Neural Network Based on a Predictive Current Control in a DC-DC Buck Converter

2021 ◽  
Author(s):  
Jazmin Ramirez-Hernandez ◽  
Leobardo Hernandez-Gonzalez ◽  
Oswaldo Ulises Juarez-Sandoval ◽  
Jose Pablo Garcia-Fernandez ◽  
Marcos Yair Bote-Vazquez
Keyword(s):  
Neural Network ◽  
Artificial Neural Network ◽  
Current Control ◽  
Buck Converter ◽  
Artificial Neural

Fractional Order Pole Placement for a buck converter based on commensurable transfer function

2020 ◽  
Vol 107 ◽  
pp. 370-384
Author(s):  
Florindo A. de C. Ayres ◽  
Iury Bessa ◽  
Vinicius Matheus Batista Pereira ◽  
Nei Junior da Silva Farias ◽  
Alessandra Ribeiro de Menezes ◽  
...  
Keyword(s):  
Transfer Function ◽  
Fractional Order ◽  
Buck Converter ◽  
Pole Placement ◽  
Order Pole

scholarly journals Real Time Energy Management and Control of Renewable Energy based Microgrid in Grid Connected and Island Modes

Energies ◽  
2019 ◽  
Vol 12 (2) ◽  
pp. 276 ◽  
Author(s):  
Muhammed Worku ◽  
Mohamed Hassan ◽  
Mohamed Abido
Keyword(s):  
Energy Storage ◽  
Real Time ◽  
Control Strategy ◽  
Current Control ◽  
Buck Converter ◽  
Management Control ◽  
Diesel Generator ◽  
Control Scheme ◽  
Real Time Digital Simulator ◽  
System Frequency

An efficient power management control for microgrids with energy storage is presented in this paper. The proposed control scheme increases the reliability and resiliency of the microgrid based on three distributed energy resources (DERs), namely Photovoltaic (PV), battery, and diesel generator with local active loads. Coordination among the DERs with energy storage is essential for microgrid management. The system model and the control strategy were developed in Real Time Digital Simulator (RTDS). Decoupled d-q current control strategy is proposed and implemented for voltage source converters (VSCs) used to interface the PV and battery sources to the AC grid. A dc-dc buck converter with a maximum power point tracking function is implemented to maximize the intermittent energy generation from the PV array. A controller is proposed and employed for both grid connected and island modes of operation. In grid connected mode, the system frequency and voltage are regulated by the grid. During a fault in island mode, the diesel generator controls the system frequency and voltage in isochronous mode. Results based on the real time digital simulator are provided to verify the superiority and effectiveness of the proposed control scheme.

FEEDBACK SYNCHRONIZATION USING POLE-PLACEMENT CONTROL

2000 ◽  
Vol 10 (11) ◽  
pp. 2611-2617 ◽  
Author(s):  
ROBERTO TONELLI ◽  
YING-CHENG LAI ◽  
CELSO GREBOGI
Keyword(s):  
Chaotic Systems ◽  
Pole Placement ◽  
Active Area ◽  
High Dimensions ◽  
Mutual Synchronization ◽  
Numerical Examples ◽  
Placement Method ◽  
Pole Placement Control

Synchronization in chaotic systems has become an active area of research since the pioneering work of Pecora and Carroll. Most existing works, however, rely on a passive approach: A coupling between chaotic systems is necessary for their mutual synchronization. We describe here a feedback approach for synchronizing chaotic systems that is applicable in high dimensions. We show how two chaotic systems can be synchronized by applying small feedback perturbations to one of them. We detail our strategy to design the control based on the pole-placement method, and give numerical examples.

Sign in / Sign up

Export Citation Format

Share Document