Impulse Generator Control Module Final Presentation

Team Members Phillip Dillon Electrical Engineering Team Leader Calvin Liu Electrical Engineering Mohieldeen Abdelrahman Electrical Engineering Francis Tran Electrical Engineering John Ford Computer Engineering Dr. Masoud Karimi Faculty Advisor

Outline Background Problem Solution System Overview Subsystems Constraints Approach Timeline Progress References [1]

Background What is an Impulse Generator Control Module? Apparatus which produces short high-voltage surges. Capacitors charge in parallel and discharge in series into a test object. These surges are used to test electrical power equipment. Impulse Generator Control Module: Measures/adjust charging voltage Measures/adjust the spark gap distance

Problem The Marx high impulse generator in MSU’s High Voltage Lab (HVL) is currently controlled using analog gauges at an outdated manual control panel.

Solution Create a digital control module for an impulse generator that can be easily used and implemented into an existing control system similar to the one in the MSU’s High Voltage Lab.

System Overview Atmospheric Conditions User Input Sphere Gap Control Control Module Computer Voltage Control Power

Subsystem: Spark Gap Control Motor

+ + Subsystem: Voltage Control Variac Stepper Motor Generator Power Supply + + [12] [13]

Subsystem: Voltage Control

Technical Constraints Name Description Motor Control The module must be capable of controlling a minimum of two motors. Voltage Measurement The peak voltage measurement must be accurate within 3% error. Spark Gap Control The spark gap control must operate within +/- 2mm. Humidity Measurement The humidity must be measured over the range of 20% to 90% relative humidity and must be within an accuracy of +/- 5% relative humidity. Temperature Measurement The surrounding air temperature must be measured within the range of 0 to 50° Celsius and must be within an accuracy of +/- 2° Celsius.

Practical Constraints: Sustainability The control module must be compatible with future modifications, renovations, or replacements of the impulse generator.

Practical Constraints: Health and Safety The control module must be able to detect any faults it could cause and must be able to report this to the user, as well as signaling the failure to any other sub-systems that require such signaling.

Approach: Microcontroller [2] [3] [4] Pic33 Arduino Due Arduino Uno

Approach: Motors ] [5] [6] [7] HT34-488 Step Motor Airpax LB82773-M1 SM42HT47-1684B Step Motor

Approach: Sensors [8] [9] [10] SHT10 DHT11 DHT22

Timeline

Effective Teaming Objectives Phillip Calvin John Mohieldeen Francis Spark Gap Control X Voltage Control Microcontroller Testing and Debugging Power Supply Atmospheric Sensors

Progress January: Research Ordered Parts February: Prototype for testing

Progress March: Research Prototype for testing April: Motor Control Software Debugging

Progress

References [1] Marx High Impulse Generator. [Online]. Available: http://www.ece.msstate.edu/hvl/research.html [2] PIC33. [Online]. Available: http://www.elmotex.de/bauelemente-aktiv/mikroprozessoren-und-peripherie/microchip-dspic33---controller/pic-33-fj-12-mc-202-i-sp.php [3] Arduino Due. [Online]. Available: http://www.arduino.cc/en/Main/arduinoBoardDue [4] Arduino Uno. [Online]. Available: http://www.arduino.cc/en/Main/arduinoBoardUno [5] HT34-488 Step Motor. [Online]. Available: http://www.applied-motion.com/products/stepper-motors/ht34-488 [6] Airpax Step Motor. LB82773-M1. [Online]. Available: http://wiki.t-o-f.info/Arduino/ExempleMoteur%C3%80PasBipolaireEtSN754410 [7] SM42HT47-1684B Step Motor. [Online]. Available: http://www.smartautomation.com.cn/ProductShow.asp?ArticleID=497 [8] SH10. [Online]. Available: http://learn.linksprite.com/arduino/shields/sht-10-digital-temperature-and-humidity-sensor/ [9] DHT11. [Online]. Available: http://www.adafruit.com/product/386 [10] DHT22. [Online]. Available: http://www.adafruit.com/product/385 [11] IEEE Standard 4. [Online]. Available: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=573333&filter%3DAND%28p_Publication_Number%3A4330%29 [12] Large Stepper Motor. [Online]. Available: http://www.applied-motion.com/products/stepper-motors/ht34-488 [13] Variac. [Online]. Available: http://www.circuitspecialists.com/variacs

Impulse Generator Control Module Final Presentation