Control analysis with Python for grid connected converters

Udemy

Online

₹ 499 2499

particular

details

                                    Medium of instructions
                                    English

                                    Mode of learning
                                    Self study

                                    Mode of Delivery
                                    Video and Text Based

Introduction

Overview of the course
Course requirements
How to use this course

Grid Basics

Introduction
An overview of power system grids
Grid voltage waveforms
Downloading Python Power Electronics
Videos on installing Python Power Electronics
Installing Python Power Electronics
Simulating a single phase voltage source
Modeling the grid feeder
Calculating the feeder impedance
Simulating a grid with a feeder
Conclusions

Grid computations

Introduction
Peak and RMS calculation concept
Implementation of peak calculation
Peak calculation during grid events
Implementation of RMS calculation
RMS calculation on non-sinusoidal waveform
The need for frequency estimation
Simulation of a system with multiple frequencies
Introduction to Phase Locked Loop
Coding the simplified PLL logic
Performance of the basic PLL
Frequency response characteristics of the PLL PI controller
Improved performance of the PLL
Offsets during numerical integration
Simulating the integration offset
Removal of the integration offset
Design of a Low Pass Filter
Coding the low pass filter
Performance of the low pass filter in a simulation
Operation of the PLL with the low pass filter
PLL operation when grid frequency changes
PLL operation when grid voltage has harmonics
Summing up the PLL control loop
Conclusions

Introduction to control systems

Introduction
Control basics
Control definitions
Control objectives in grid connected systems
System representation of a grid connected converter
Model of the plant
Linear time invariant systems
LTI systems and controllability
Conclusions

Getting started with system analysis

Introduction
Laplace transform and frequency domain representation
Basics of stability
Characteristic equation of a system
Examples of stability
Installing the python-control package
Creating transfer functions in Python
The transfer function object produced by python-control
Transfer functions in series
Transfer functions in parallel
Calculating the transfer function of the closed loop system
Synthesizing a non-standard transfer function
Impulse response of a system
Convolution integral
Bode plots
Generating Bode plots using Python
Using Bode plots to predict simulation results
Analyzing the simulation results with Bode plots
Summing up with Bode plots
Conclusions

Design and analysis of controllers

Introduction
Approach to control
Setting up the simulation
Converter as a controllable voltage source
Open loop regulation of converter voltage
Closing the loop with a unity gain controller
Analyzing the performance of the unity gain controller
Bringing in the proportional (P) controller
Requirements of a controller
Analyzing the forward transfer function with the proportional controller
Discrete-time control
Mathematical model of sampling
Modified transfer functions with sampling delay
Bode plots with sampling delay
Simulating the discrete-time controller
Coding the transfer function between grid voltage and current
Analyzing the impact of the grid voltage
Effect of proportional controller gains on control performance
Verifying analytical results in a simulation
Poles of the closed loop system
Gain margin and phase margin
Stability margins on a Bode plot
Analytical design process for the proportional controller
Design and analysis of a Proportional-Integral controller
Simulation of the PI controller
Summing up the control design effort
Conclusions

Synchronous transformations

Introduction
Definition of a moving reference frame
Example of the use of a moving reference frame
Rotating reference frame in electrical engineering
Theory of synchronously rotating reference frame transformation
Setting up a simulation to implement transformations
Transformed grid voltages
Explaining the errors in the simulation
Transformation with a non synchronous rotating reference frame
Another look at the PLL control strategy
System model in the rotating reference frame
Control approach in the rotating reference frame
Impact of the rotating reference frame on system transfer functions
Coding the rotating frame transfer functions in Python
Computing closed loop system poles
Plotting closed loop poles for arrays of controller gains
Dividing the plot into separate Python objects
Defining user events on the plot window
Interpreting data related to a mouse moving over the plot
Mapping controller gains to a particular pole on the plot
Displaying controller gains on the plot next to a pole
Using the plot to understand how controller gains affect system stability
Analyzing system stability
Setting up simulation for verifying control analysis
Transforming ac variables to the rotating reference frame in the simulation
Implementing the PI controller in the rotating reference frame
Connecting the PI controller to the circuit voltage source
Analyzing controller variables
Debugging the controller
Basic current tracking performance of the controller
Improving the performance of the controller
Suggestions for examining performance of the control system
Conclusions

Simulating the power converter

H-bridge converter topology
Connecting a LC filter and load to converter output
Editing the parameters of the converter and test circuit
Generating the carrier waveform for Pulse Width Modulation (PWM)
Sine triangle comparison in PWM
Open loop operation of the H bridge converter
Redesigning control gains for converter interconnection to grid
Setting up the simulation with converter and grid
Analyzing simulation of grid connected converter
Examining oscillations in the waveforms
Adjusting the filter of the power converter
Concluding remarks and suggestions

Conclusions

Conclusions

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Control analysis with Python for grid connected converters

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The syllabus

Introduction

Grid Basics

Grid computations

Introduction to control systems

Getting started with system analysis

Design and analysis of controllers

Synchronous transformations

Simulating the power converter

Conclusions

Articles

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Popular Searches

Control analysis with Python for grid connected converters

Online

₹ 499 2499

Quick Facts

Course and certificate fees

Fees information

certificate availability

certificate providing authority

The syllabus

Introduction

Grid Basics

Grid computations

Introduction to control systems

Getting started with system analysis

Design and analysis of controllers

Synchronous transformations

Simulating the power converter

Conclusions

Articles

Popular Articles

Latest Articles

Trending Courses

Popular Courses

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Learn more about the Courses

Thank You!

Download Careers360 App

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