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Page 1: P16462: Wind Energy Base Station Sub-system Design …edge.rit.edu/content/P16462/public/SSDRHandout.pdf · Tether and Bridle System Motor ... Equation, Example Deflection Calculation

P16462: Wind Energy Base Station Sub-system Design Review

Agenda ● Team Structure ● Flights ● Operating Conditions lead to Design Parameters  ● Design Deliberation 

○ Base Structure ○ Reel Structure ○ Tether and Bridle System ○ Motor Selection ○ Transmitter Improvements 

● Program Planning ○ Risks  ○ Finances ○ Future 

  Comments, advice, and questions are strongly encouraged. Please               allow each individual presenter to complete their delivery before                 asking them questions. Your attendance and participation are greatly                 appreciated. We hope you enjoy this presentation.       

Page 2: P16462: Wind Energy Base Station Sub-system Design …edge.rit.edu/content/P16462/public/SSDRHandout.pdf · Tether and Bridle System Motor ... Equation, Example Deflection Calculation

System Operating Conditions Additional Simulation Outputs 

 

   

Page 3: P16462: Wind Energy Base Station Sub-system Design …edge.rit.edu/content/P16462/public/SSDRHandout.pdf · Tether and Bridle System Motor ... Equation, Example Deflection Calculation

Base Design  

 Overall Design 

 1: Base Plate 

Page 4: P16462: Wind Energy Base Station Sub-system Design …edge.rit.edu/content/P16462/public/SSDRHandout.pdf · Tether and Bridle System Motor ... Equation, Example Deflection Calculation

 2: Tower Structure 

  

 Ring Deflection Table of Values 

Page 5: P16462: Wind Energy Base Station Sub-system Design …edge.rit.edu/content/P16462/public/SSDRHandout.pdf · Tether and Bridle System Motor ... Equation, Example Deflection Calculation

 3: Ring 

 

 E Values, Moment of Inertia Equation, Example Deflection Calculation 

      

Page 6: P16462: Wind Energy Base Station Sub-system Design …edge.rit.edu/content/P16462/public/SSDRHandout.pdf · Tether and Bridle System Motor ... Equation, Example Deflection Calculation

First Draft of Base Design 

          

      

Page 7: P16462: Wind Energy Base Station Sub-system Design …edge.rit.edu/content/P16462/public/SSDRHandout.pdf · Tether and Bridle System Motor ... Equation, Example Deflection Calculation

Transmitter Analysis: 

 Figure A: Power Spectral Density of the Noise in our FM system 

 Figure B: Basic Pre­Emphasis circuit 

Page 8: P16462: Wind Energy Base Station Sub-system Design …edge.rit.edu/content/P16462/public/SSDRHandout.pdf · Tether and Bridle System Motor ... Equation, Example Deflection Calculation

 Figure C: Basic De­Emphasis circuit 

 

 Figure D: Results of the Transmitter test 

     

Page 9: P16462: Wind Energy Base Station Sub-system Design …edge.rit.edu/content/P16462/public/SSDRHandout.pdf · Tether and Bridle System Motor ... Equation, Example Deflection Calculation

Motor selection: Our motor needs to generate 9Nm of torque and needs to be inexpensive to purchase.  Exceed 36V motors are available but those motors are over our budget so it is not reliable. Other types DC motors, such as brushless and stepper motor, require microcontroller to run them under control.   

          

Page 10: P16462: Wind Energy Base Station Sub-system Design …edge.rit.edu/content/P16462/public/SSDRHandout.pdf · Tether and Bridle System Motor ... Equation, Example Deflection Calculation

Changing in direction of motor can be controlled by H­Bridge system. this H­Bridge system has wide range of voltage input and if we have a range of required power, our EE team can make one for our motor.  This H­bridge requires: 

­ 4 of transistors( for control electical signals) ­ 4 of resistors ( regulate the current flows)  ­ 4 of diode( for control direction) ­ 2 switches( for control voltage flow).