Circuit analysis of conductive noise generated by solar array arcing on spacecraft
- Paper number
IAC-05-E2.P.08
- Author
Mr. Sachio Akebono, Kyushu Institute of Technology, Japan
- Year
2005
- Abstract
When solar array is operated at a high voltage, arcs occur on the array surface. Our task is to examine the effects of conductive current generated by arcing on solar array circuit of spacecraft. First, equivalent circuits of small solar array module are modeled. The equivalent circuits are made for various types of solar cell such as silicon, gallium arsenic (hetero junction), and triple junction cells, etc. The equivalent circuit is composed of current source, diode, resistance, inductance and capacitance. First, we measured the frequency characteristic and I-V characteristic of a given solar array, and modeled the equivalent circuit to have the same characteristics by electronic circuit simulation software (SPICE). Spacecraft has hundreds of solar cells which are connected in series and/or parallel. We modeled an entire solar panel by connecting each unit solar array module all together. Next, an electric equivalent circuit of the arc inception and expansion was made, and was compared with the ground test result. We simulated the transient current and excessive voltage resulted from the ground test using the equivalent circuit.
- Abstract document
- Manuscript document
IAC-05-E2.P.08.pdf (🔒 authorized access only).
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