SSNB Ion Engine

Project

• Traditional propulsion methods for spacecraft create limitations on mission life based on weight and fuel.
• Our project explores the application of particle ionization as a propulsion method for small very low earth orbit satellites.
• The SSNB Ion Engine utilizes a high voltage transformer to generate an ionization field that accelerates atmospheric particles to generate thrust.
• The power converter uses open loop controls to adjust engine output.

System

Methods

• An ionization grid was designed to guide the high voltage potential to generate corona discharge instead of arcs.
• A high voltage transformer was used to step up a low voltage power source to a high voltage power source.
• A low voltage buck converter was used to change the input to the high voltage supply, which in turn changed the output of the high voltage power source.
• Varying the output of the high voltage transformer resulted in a varying output of speed.
• Safety measures were included to prevent damage to the equipment and keep users safe.

Conclusion

• Measurable ionic wind was generated from the thruster.
• Learned methods for high load side switching in power converters.
• Exploration in more complex converter types may yield better efficiency.
• Higher voltage may yield greater acceleration.
• Research into fuel species other than air may yield better thrust for non-perpetual applications.