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Implementation and Validation of In-situ Process Monitoring and Control for Highly Automated Space Solar Generator Manufacturing

Programme
GSTP
Programme Reference
GT17-168EP
Prime Contractor
SPACETECH GMBH
Start Date
End Date
Status
Closed
Country
Germany
Objectives

The objective of this activity is Implementation and validation of an in-situ solar cell test and measurements equipment in the automated manufacturing line of solar panels suppliers. 

Description

Solar panel suppliers are developing a partially automated solar generator assembly process. A GSTP G617-241TA de-risk Activity: "Identification and baseline validation of solar cell test and measurement techniques for highly automated space solar generator manufacturing" was in the process to be completed, where measurement techniques have been identified and initially verified to be suitable to control the quality of the solar generator during automatic manufacturing. The present activity is aimed to implement those measurement techniques in an automated solar generator assembly manufacturing line. This automated in-situ quality process control will boost, in an innovative manner, the characterization capability, presumably reducing the total manufacturing cost. This technology can be partly or completely merchandised to solar generator manufacturers worldwide. In fact, quality assurance and process monitoring on solar cell level can be considered independent of the particular assembly technology in use, and can be applied to a variety of application scenarios.In particular the tasks that were planned to be done in the frame of this activity are the following:
Providing an integrated sensor head for the automated in-line process monitoring from bare cell to PVA.
Support of self-optimized process development through machine learning techniques.
Software development for fully automated data acquisition and analysis.
Sensor Head with HDR Vision (Presence, Dimensions, Alignment & Mechanical Integrity of all SCA-S component parts), Electrical Health (EL & PL of J1-JN) and 3D Vision (3D Inspection & Adhesive Gap Thickness Determination).
Evaluation and qualification of the novel sensor head against ECSS standard procedures.
 

Achievements and status:

High speed and high resolution 2D, 3D, electro- and photoluminescence imaging of solar generator components
Machine vision based evaluation of presence, dimension, alignment of substrate panel and solar cell assembly components
Set up of automated pilot pva production line with ongoing commercial series manufacturing of solar generators
Catalogue of defects detected through luminescence
Manufacture and successful Testing of DVT Coupon
Application Domain
Space Safety
Technology Domain
13 - Automation, Telepresence & Robotics
24 - Materials and Manufacturing Processes
25 - Quality, Dependability and Safety
3 - Space Systems Electrical Power
Competence Domain
2-Structures, Mechanisms, Materials, Thermal
3-Avionic Systems
4-Electric Architecture, Power and Energy, EMC
8-Ground Systems and Mission Operations
Initial TRL
TRL 3
Target TRL
TRL 6
Achieved TRL
TRL 6
Public Document