Transient Stability Analysis of DC Solid State Power Controller (SSPC) for More Electric Aircraft

The solid state power controller (SSPC) is one of the most important power electronic components of the aircraft electrical power distribution (EPS) systems. This paper presents an architecture of the DC SSPC and provides the mitigation techniques for transient voltage overshoot during its turn-off. The high source side inductance carries breaking current (9xnominal current) just before turnoff and induces large voltage transient across the semiconductor devices. Therefore, the stored inductive energy needs to be dissipated in order to prevent semiconductor switches from over-voltage/thermal breakdown. Three different transient voltage suppression (TVS) devices to reduce voltage stress across switches are included in the paper for detail study. The comprehensive comparison of the TVS devices is presented. In addition, the thermal impact of the TVS devices on the semiconductor switches is also analyzed. Later, the transient simulation model of the SSPC is built in LT-Spice and the effectiveness of the proposed protection mechanisms is verified.

• Record URL:
  https://doi.org/10.4271/2018-01-1927
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01487191
• Supplemental Notes:
  • Abstract reprinted with permission of SAE International.
• Authors:
  • Adhikari, Jeevan
  • Yang, Tao
  • Rashed, Mohamed
  • Bozhko, Serhiy
  • Zhang, JiaWei
  • Wheeler, Patrick W
• Conference:
  • Aerospace Systems and Technology Conference
  • Location: London , United Kingdom
  • Date: 2018-11-6 to 2018-11-8
• Publication Date: 2018-10-30

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Serial:
  • SAE Technical Paper
  • Publisher: Society of Automotive Engineers (SAE)
  • ISSN: 0148-7191
  • EISSN: 2688-3627
  • Serial URL: http://papers.sae.org/

Subject/Index Terms

• TRT Terms: Aircraft; Direct current; Electric power transmission; Electric switches; Electric vehicles; Electronic controllers; Semiconductor devices; Stability analysis
• Uncontrolled Terms: Electric aircraft; Power controller units
• Subject Areas: Aviation; Vehicles and Equipment;

Filing Info

• Accession Number: 01690357
• Record Type: Publication
• Source Agency: SAE International
• Report/Paper Numbers: 2018-01-1927
• Files: TRIS, SAE
• Created Date: Dec 31 2018 9:05AM