Simulation of Power Electronics Converters Using PLECS®

Cover
Simulation of Power
Electronics Converters
Using PLECS
Copyright
Dedication
Preface
1
Brief introduction to PLECS
	Introduction
	What is PLECS?
	What is this book?
	References
	Further reading
2
Basics of circuit simulation with PLECS
	Introduction
	Example 2.1: Resistive voltage divider
		Preparing the simulation
		Adding title to the scope
		Setting the axis limits
		Change the properties of the shown waveform
		Reading the values using cursors
		Zoom in/out
		Exporting the scope block waveforms
		Exporting the drawn schematic
		Display block
		Changing the block names
		Hiding the block names
		Adding text to the schematic
		Ammeter block
		Wire colors
	Example 2.2: RC circuit analysis
		Preparing the simulation
		Specifying the initial condition
		Showing two or more waveforms simultaneously on the same axis
		Multiple input scope
		XY scope block
		Simulation of control systems
		Getting help in PLECS
	References
	Further reading
3 Basics of power electronic circuits simulation with PLECS
	Introduction
	Example 3.1: MOSFET with resistive load
		Preparing the simulation
		Measuring the average and RMS of waveforms
		Measuring the power dissipated in the load resistor
		Subsystem block
		Measuring the input power
		Generating the PWM signal using ready-to-use blocks
	Example 3.2: Uncontrolled single-phase half-wave rectifier
		Preparing the simulation
		Harmonic content of output
		Measuring the RMS values of voltages/currents
		Capturing a period of output voltage/current
		``Discrete RMS value´´ block
		``Discrete mean value´´ block
		Measuring the maximum/minimum of waveforms shown in the scope block
		Obtaining the load instantaneous power
	Example 3.3: Single-phase half-wave controlled rectifier
		Preparing the simulation
		Calculating the RMS, mean, max/min, etc.
	Example 3.4: Single-phase full-wave controlled rectifier
		Preparing the simulation
		Calculating the average output voltage using the ``Discrete Fourier transform´´ block
	Example 3.5: 3 Phase full-wave controlled rectifier
		Preparing the simulation
		Drawing more understandable schematics using ``Electrical label,´´ ``Signal from,´´ and ``Signal goto´´ blocks
		Delay block
	Example 3.6: Boost converter
		Preparing the simulation
		Simulating the circuit using the ready-to-use modulator
		Efficiency measurement
	Example 3.7: Obtaining the small signal transfer functions for a buck converter
		Preparing the simulation
		Comparison of different simulation results
		Importing the simulation results into the MATLAB
	Example 3.8: Mutual inductance
		Preparing the simulation
		Using parametric variables to specify the component values
	Example 3.9: 3-Phase inverter
		Preparing the simulation
			PWM Generator
			Power Stage
			Load
		Calculating the total harmonic distortion (THD)
		``Fourier series´´ block
	Example 3.10: Simulation of electrical machines
		Preparing the simulation
		Monitoring using the probe block
	References
	Further reading
4
Simulink version of PLECS
	Introduction
	Simulation of diode-clamped inverter
	Simulation of a diode-clamped multilevel inverter
		The power stage
		The PWM generation part
		Simulation of circuit
	Sending/receiving signals to/from Simulink environment
	Simulation of a cascaded inverter
	Measurement with the probe block
	Extraction of frequency response of DC-DC converters
	Fitting a transfer function to obtained graph
	Designing a controller
	Obtaining the control-to-inductor current transfer function
	Extraction of output impedance
	Steady-state analysis
	More simulation examples
	Further reading
5
Thermal analysis of power electronics converters with PLECS
	Introduction
	Single-phase open-loop inverter
	Electrical simulation of single-phase inverter
	Thermal description of semiconductor switches
	Switching losses
		Turn-on switching losses for the IGBT
		Turn-off switching losses for the IGBT
	Conduction losses for the IGBT
	Thermal impedances
	Adding comments
	Saving the produced thermal model
	Adding the produced model to thermal search path of PLECS
	Modeling losses of body diode
		The turn-on losses of body diode
		The turn-off losses of body diode
		The conduction losses of body diode
	Thermal impedance of body diode
	Loss measurements
		Calculation of IGBTs losses
		Calculation of body diodes losses
		Calculation of total losses
	Junction temperatures measurement
	Running the simulation
	Designing the heat sink
	Effect of modulation technique on losses
		Review of unipolar PWM
	Calculation of losses for a unipolar PWM inverter
	Further reading
6
Extraction of power electronics converters uncertainties with PLECS
	Introduction
	Uncertainty models
		Parametric uncertainty
		Unstructured uncertainty
		Structured uncertainty
	Robust control
		Kharitonovs theorem
		H Control
		μ Synthesis
	Case study: A zeta converter
		Analyzing the system without uncertainty
		Audio susceptibility
		Output impedance
		Using the PLECS to extract the uncertain model of the DC-DC converters
			Additive uncertainty model
			Multiplicative uncertainty model
	References
7
Simulation of magnetic circuits in PLECS
	Introduction
	Magnetic blocks
		Winding block
		Magnetic permeance block
		Saturable core block
		Hysteretic core block
		Air gap block
		Leakage flux path block
	Implementation of blocks
	Some commonly used magnetic configuration
	Case study
	Where to go next?
	Reference
	Further reading
8
Fundamental concepts of power electronic circuits
	Introduction
	Instantaneous power
	Average power
	Effective value of a signal
		Effective value of sum of two periodic signals
		Measurement of RMS of signals
	Apparent power and power factor
	Power computations for linear circuits
	Fourier series
		Fourier series of important waveshapes
		Calculation of average power using the Fourier series
	Total harmonic distortion (THD)
	Volt-second balance
	Ampere-second balance
	MOSFET with resistive load
	Uncontrolled half-wave rectifier
	Controlled half-wave rectifier
	DC-DC converters
		Buck converter
			Calculation of output voltage
			Calculation of average current drawn from input source
			Determining the operating mode of converter
			Calculation of output ripple
	Calculation of output voltage of a buck converter operated in DCM
	Other types of DC-DC converters operating in DCM
		Boost converter
		Buck-boost converter
		Cuk converter
		Flyback converter
	Dynamics of DC-DC converters
		Overview of state space averaging (SSA)
		Dynamical model of buck converter
			Dynamical equations for closed MOSFET case
			Dynamical equations for opened MOSFET case
			Averaging
			Linearization of averaged equations
			Obtaining the small-signal transfer functions using MATLAB
	PID controller design for converter
	Input/output impedance of converter
	Effect of feedback control on output impedance
	Dynamic of buck-boost converter
	Dynamics of boost converter
	Dynamics of zeta converter
	Inverters
		Series H bridge inverters
		Diode-clamped multilevel inverters
	Heatsink
	Further reading
Appendix A
Index
	A
	B
	C
	D
	E
	F
	G
	H
	I
	J
	K
	L
	M
	O
	P
	R
	S
	T
	U
	V
	W
	Z
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