Digital Implementation and Simulation of the ZVS Control Scheme

2013 ◽  
Vol 336-338 ◽  
pp. 19-22
Author(s):  
Bai Fen Liu ◽  
Ying Gao
Keyword(s):  
Control Strategy ◽  
Digital Signal Processor ◽  
Digital Control ◽  
Large Scale ◽  
Digital Signal ◽  
Small Range ◽  
Control Technology ◽  
Digital Implementation ◽  
Digital Pid ◽  
Object Parameter

Digital control algorithm common neural networks, fuzzy control, digital PID digital PID technology used widely and mature, the digital PID proportional, integral, derivative control the abbreviation. These advantages: simple in principle, applicability; little within the small range of the controlled object parameter changes on the performance indicators, a great guarantee the validity of the regulation. PID is the most successful control strategy in the analog control technology, digitized; people naturally will this control strategy is grafted onto the digital control technology. The system is digital PID.Used to implement a digital control chip has many, e.g., microcontroller, field programmable gate arrays (FPGAs), digital signal processor (DSP) and the microcontroller (ARM). SCM is the first large-scale application of the controller, but due to the speed of operation and the median can not meet the growing industrial control requirements. .

FPGA-Based Implementation Direct Torque Control of Induction Motor

2015 ◽  
Vol 5 (3) ◽  
pp. 293 ◽  
Author(s):  
Saber Krim ◽  
Soufien Gdaim ◽  
Abdellatif Mtibaa ◽  
Mohamed Faouzi Mimouni
Keyword(s):  
Induction Motor ◽  
Digital Signal Processor ◽  
Sliding Mode ◽  
Direct Torque Control ◽  
Digital Signal ◽  
Open Loop ◽  
Torque Control ◽  
Digital Implementation ◽  
Fast Processing ◽  
Stator Resistance

<p>This paper proposes a digital implementation of the direct torque control (DTC) of an Induction Motor (IM) with an observation strategy on the Field Programmable Gate Array (FPGA). The hardware solution based on the FPGA is caracterised by fast processing speed due to the parallel processing. In this study the FPGA is used to overcome the limitation of the software solutions (Digital Signal Processor (DSP) and Microcontroller). Also, the DTC of IM has many drawbacks such as for example; The open loop pure integration has from the problems of integration especially at the low speed and the variation of the stator resistance due to the temperature. To tackle these problems we use the Sliding Mode Observer (SMO). This observer is used estimate the stator flux, the stator current and the stator resistance. The hardware implementation method is based on Xilinx System Generator (XSG) which a modeling tool developed by Xilinx for the design of implemented systems on FPGA; from the design of the DTC with SMO from XSG we can automatically generate the VHDL code. The model of the DTC with SMO has been designed and simulated using XSG blocks, synthesized with Xilinx ISE 12.4 tool and implemented on Xilinx Virtex-V FPGA.</p>

scholarly journals Design and digital implementation of power control strategy for grid connected photovoltaic inverter

2019 ◽  
Vol 10 (3) ◽  
pp. 1564 ◽  
Author(s):  
Linda Hassaine ◽  
Mohamed Rida Bengourina
Keyword(s):  
Phase Shift ◽  
Power Control ◽  
Control Strategy ◽  
Digital Control ◽  
Optimization Design ◽  
Power Calculation ◽  
Digital Implementation ◽  
Grid Voltage ◽  
Phase Shift Angle ◽  
Shift Angle

<p class="Abstract">This paper presents the optimization design and a detailed implementation in FPGA (Field-Programmable Gate Array) of a power control strategy. This strategy is based on the phase shift angle of the inverter output voltage with respect to the grid voltage and DSPWM (Digital Sinusoidal Pulse Width Modulation) patterns “Phase shift angle-DSPWM” for an inverter for photovoltaic system connected to the grid. The proposed control can synchronize a sinusoidal inverter output current with a grid voltage and control the power injected into the grid. Detailed development of a digital controller with lower hardware and computation requirement is proposed. Description on the digital implementation of the A/D converter, the PI compensator, the phase shift and the DPWM, is provided. This digital control exhibit simplicity, reduction of the memory requirements and power calculation for the control. The functional structure of this system with digital control has been validated with simulations and experimental results.</p>

A New Realization Method of Control System for Magnetic Bearing

2010 ◽  
Vol 43 ◽  
pp. 32-35
Author(s):  
Wen Yue Zhang ◽  
Yan Jun Ge ◽  
Jun Yue Yang
Keyword(s):  
Control System ◽  
Power Amplifier ◽  
Control Strategy ◽  
Digital Signal Processor ◽  
Control Strategies ◽  
Digital Signal ◽  
Magnetic Bearing ◽  
Current Control ◽  
Common Control ◽  
The Difference

Aiming at the problems of complex circuit and parameter adjustment in traditional current type power amplifier of Magnetic Bearing (MB), a new realization method of control system based on DSP (Digital Signal Processor) is proposed. The difference with traditional power amplifier is that the current control loop is realized through software in DSP, so some advanced control strategies will be adopted easily, and the control parameters could be modified freely. Besides, the models established in MATLAB using common control strategy and advanced strategy are simulated separately, and the simulation results show the better effect can be obtained with the latter. Finally, the rotor of a 1-DOF MB prototype can be suspended within 0.01mm in the experiment, and the control strategy and parameters can be modified freely by software in DSP.

scholarly journals Application Analysis of Digital Signal Processor DSP in Logging Instrument

2019 ◽  
Vol 3 (2) ◽  
Author(s):  
Jie Lian
Keyword(s):  
Signal Processing ◽  
Digital Signal Processing ◽  
Digital Signal Processor ◽  
Large Scale ◽  
Digital Signal ◽  
Large Scale Integration ◽  
Scale Integration ◽  
Evolution Of Science ◽  
Development And Evolution ◽  
Signal Processor

In today's world, the development of economy has led to the continuous development and evolution of science and technology. Computer technology and large-scale integration technology have been well developed and applied, followed by the technology of digital signal processing DSP production and application. In the field of logging, the application function of this technology plays a key role. It not only allows the imaging logging technology to be further developed, but also enables fast and accurate processing of downhole signals. Therefore, among many logging tools today, digital signal processing DSPs have been widely used, and their functions have been fully utilized. This paper analyzes the application of signal processor DSP in logging instruments. It is hoped that it can play a reference role in the good application and development of logging instruments.

Adaptive Seeking Control for Magnetic Disk Drives

1999 ◽  
Author(s):  
Masahito Kobayashi ◽  
Takashi Yamaguchi ◽  
Hiromu Hirai
Keyword(s):  
Control Strategy ◽  
Digital Signal Processor ◽  
Servo System ◽  
Digital Signal ◽  
Disk Drive ◽  
Disk Drives ◽  
Control Performance ◽  
Magnetic Disk ◽  
Velocity Error ◽  
Signal Processor

Abstract The digital servo system of a magnetic disk drive has to overcome poor seek control performance caused by the mechanical gain variations and force disturbance variations in each disk. This paper presents an adaptive seek control strategy which adjusts the acceleration feedforward gain to minimize the square of the velocity error. The adaptive seek control is implemented using a digital signal processor and its control performance is good.

Control Over Air Gap of Active Magnetic Bearing Based on DSP

2007 ◽  
Author(s):  
Shuangyan Ren ◽  
Chunyuan Bian ◽  
Zhiqiang Wang ◽  
Jie Liu
Keyword(s):  
Pid Control ◽  
Digital Signal Processor ◽  
Digital Control ◽  
Digital Signal ◽  
Mathematic Model ◽  
Magnetic Bearing ◽  
Low Noise ◽  
Active Magnetic Bearing ◽  
High Control ◽  
Amb System

On the basis of a mathematic model, a digital control system based on digital signal processor (DSP) TMS320LF2407A is designed. The design plans of hardware and software are produced. A control algorithm combined with PID control with detached integral and PID control with variable arguments (three regions) is presented. Also, simulations and experiments are implemented. The results show whether there are or not any kinds of disturbances, the rotor can always be levitated near the balance position stably with the designed controller. The AMB system of digital control has advantages such as high stability, rapid response, small overshoot, low noise, high control precision and so on, which meet the requests of AMB control properties.

Digital Signal Processor: An Overview of the Silicon Very-Large-Scale-Integration Implementation

1981 ◽  
Vol 60 (7) ◽  
pp. 1441-1447
Author(s):  
F. E. Barber ◽  
T. J. Bartoli ◽  
R. L. Freyman ◽  
J. A. Grant ◽  
J. Kane ◽  
...  
Keyword(s):  
Digital Signal Processor ◽  
Large Scale ◽  
Digital Signal ◽  
Very Large Scale Integration ◽  
Large Scale Integration ◽  
Scale Integration ◽  
Signal Processor

Performance improvement of resonant multi-loop controller with odd harmonic injection for standalone three-phase inverter

2019 ◽  
Vol 16 (6) ◽  
pp. 782-790
Author(s):  
Mohsen Karimi ◽  
Mohammad Pichan ◽  
Mehdi Sadri ◽  
Seyed Morteza Seyedjafari
Keyword(s):  
Digital Signal Processor ◽  
Control Method ◽  
Digital Signal ◽  
Injection Technique ◽  
Nonlinear Loads ◽  
Content Type ◽  
Digital Implementation ◽  
Three Phase ◽  
Harmonic Injection ◽  
Output Capacitor

Purpose This paper aims to investigate an improved control method and digital signal processor-based (DSP-based) digital implementation of three-phase standalone inverter. The proposed method is performance developed of the proportional-resonant controller (PRC) with harmonic injection technique, aiming to improve load voltages quality under different loads, especially nonlinear loads. The advanced proposed multi-loop controller is consisted of current harmonic loops for suppressing odd harmonic, which are analyzed in discrete-time domain. Besides, the voltage loop is also used to compensate the output capacitor voltage. Design/methodology/approach The proposed method can effectively enlarge output voltage stability with low total harmonics distortion and improve the dynamic transient response. The other advantage of the proposed PRC is the injection of the selective harmonic without any additional calculation compensator. Findings The method is given the opportunity to be controlled exactly all harmful outputs with high-quality voltage referenced of the standalone inverter. The proposed method is implemented using a DSP processor (TMS320F28335) and is verified on the 10 kVA three-phase standalone inverter prototype. Originality/value The proposed method is performance developed of the PRC with harmonic injection technique, aiming to improve load voltages quality under different loads, especially nonlinear loads.

Sensorless Control of IPMSM Using Extended Flux Estimation Method

2012 ◽  
Vol 150 ◽  
pp. 95-99 ◽  
Author(s):  
Tao Zhang ◽  
Wei Ni ◽  
Hui Ping Zhang ◽  
Sha Sha Wu
Keyword(s):  
Control Strategy ◽  
Digital Signal Processor ◽  
Sensorless Control ◽  
Permanent Magnet Synchronous Motor ◽  
Estimation Method ◽  
Digital Signal ◽  
Position Estimation ◽  
Interior Permanent Magnet ◽  
Flux Estimation ◽  
Rotor Position Estimation

The mathematic models of an interior permanent magnet synchronous motor (IPMSM) are deduced in this paper. A novel sensorless control strategy for IPMSM is proposed. An extended flux is systematically derived by using the proposed extended flux estimating method. The shaft position and speed of the motor are obtained. The simulation control system is built based on Matlab and a TMS320LF2407 digital signal processor is used to execute the rotor position estimation and rotor speed estimation. Several experimental and simulation results are provided to validate the control strategy.

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