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    Key modules

  • RMPCNTL (ramp control): this module used by the instantiation of the object rc1, structure for which we can access each variable, controls the acceleration and deceleration rate of the speed command speed_ref .This speed command is passed the input of the RMPCNTL module rc1.target_value. The output of this module is called rc1.setpt_value which represents the frequency of the saw-tooth we want to generate.This frequency information is then passed to the ramp generator module.
  • RAMPGEN (ramp generator): to use this module, we instantiate an object rg1. The input of this module is rg1.rmp_freq . The rotating angle we generate (saw-tooth waveform) is rg1.rmp_out. This angle is then used for the Inverse PARK transformation.
  • IPARK (Inverse Park Transformation): instance ipark1. Computed rotating angle is passed into the ipark1.ang variable. The d and q inputs to the inverse Park transformation control the command magnitude via the variables ipark1.de and ipark1.qe.
  • SVGENDQ (Space Vector Generation): instance svgen_dq1. This module takes the output of the IPARK module and calculates the modulation to be applied on the duty cycle of the three pairs of PWM connected to the three phases inverter bridge (svgen_dq1.Ta, svgen_dq1.Tb and svgen_dq1.Tc).
  • PWMGEN (Pulse Width Modulation Generation driver): this modules is the only one linked to the DSP peripherals. Duty-cycles previously calculated are passed into the DSP PWM registers via the instant pw1. PWMGEN takes care of the DSP PWM initialization (timer set-up, PWM polarity and so on).
  1. Run the PMS_Motor_data M-file. This file initializes the following variables:
%Mechanical system %Electrical partDC_voltage = 200; encoder_resolution = 2000;%PWM freq_max=75e6;%Controller Ts=5e-5;
  1. Open the PMS_Motor_level1 Simulink® model.
Space vector generation model

Vd Testing

  1. Run the model and double-click the “Stator Current” and “Rotor Speed” scopes.
Stator Current
Rotor Speed

Running the pmsm in open loop

The purpose of this step is to simulate open–loop operation with power-stage and motor connected and to check out current sensing and feedback path.

Open Loop

Key Modules Used for this level

In addition to the modules used in the previous section, we now start to build the feedback loop using:

  • ILEG2DCBUSMEAS_VCON (current leg and DC bus measurement): This module initializes the ADC to start automatic conversions of channels selected by the user on timer 1 underflow. ADC conversion results are automatically formatted and stored into dedicated variables.
  • CLARKE (Clarke transform module): This module converts the measured current into CLARKE coordinates in the reference frame (α, β).
  • PARK (Park Transformation): This module converts the (α, β) coordinates into two DC quantities.
  • Open the PMS_Motor_level2 Simulink model.

Vd Testing

Figure 8: Open Loop Model

  1. Run the model and double-click the “Stator Current” and “Rotor Speed” (same as previous section) and “Vd/Vq” scopes.

Ramp GeneratorVq Testing

Figure 9: Current Sensing

  1. Now you may change the values of Vd and Vq, and check how it influences the graphs above.

Questions & Answers

are nano particles real
Missy Reply
yeah
Joseph
Hello, if I study Physics teacher in bachelor, can I study Nanotechnology in master?
Lale Reply
no can't
Lohitha
where we get a research paper on Nano chemistry....?
Maira Reply
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
Ali
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
hey
Giriraj
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
has a lot of application modern world
Kamaluddeen
yes
narayan
what is variations in raman spectra for nanomaterials
Jyoti Reply
ya I also want to know the raman spectra
Bhagvanji
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
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Source:  OpenStax, From matlab and simulink to real-time with ti dsp's. OpenStax CNX. Jun 08, 2009 Download for free at http://cnx.org/content/col10713/1.1
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