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BSI PD CEN/TR 17603-20-20:2022

BSI PD CEN/TR 17603-20-20:2022

$215.11

Space engineering. Guidelines for electrical design and interface requirements for power supply

Published By Publication Date Number of Pages
BSI 2022 80
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In general terms, the scope of the consolidation of LCLs power distribution interface requirements in the EN 16603-20-20 (equivalent to ECSS-E-ST-20-20) and the relevant explanation in the present handbook is to allow a more recurrent approach for the specific designs offered by power unit manufacturers, at the benefit of the system integrators and of the Agency, thus ensuring: – better quality, – stability of performances, and – independence of the products from specific mission targets. A recurrent approach enables power distribution manufacturing companies to concentrate on products and a small step improvement approach that is the basis of a high quality industrial output. In particular, the scope of the present handbook is: – to explain the principles of operation of power distribution based on LCLs, – to identify important issues related to LCLs, and – to give some explanations of the requirements set up in the ECSS-E-ST-20-20 for power distribution based on LCLs, for both source and load sides.

PDF Catalog

PDF Pages PDF Title
2 undefined
9 1 Scope
10 2 References
11 3 Terms, definitions and abbreviated terms
3.1 Terms from other documents
3.2 Abbreviated terms
13 4 Explanations
4.1 Explanatory note
4.2 How to use this document
14 5 Power distribution by LCLs/RLCLs
5.1 General architecture
15 5.2 Functionality
5.2.1 Overview
5.2.2 Switch, driver and current sensor
17 5.2.3 Trip-off section
5.2.3.1 Overview
20 5.2.3.2 Verification
5.2.4 Memory cell and switch supply section
21 5.2.5 Undervoltage protection section
23 5.2.6 Auxiliary supply section
5.2.7 Telemetry section
5.2.7.1 Status telemetry
5.2.7.2 Current telemetry
24 5.3 Retriggerable Latching Current Limiter case
25 5.4 Heater Latching Current Limiter case
26 5.5 Reference power bus specification
5.6 Performance, state of the art
29 5.7 Critical requirements and important issues
5.7.1 Overview
30 5.7.2 Nominal conditions (LCL fully operational)
5.7.2.1 LCL class attribution
32 5.7.2.2 Generic start-up requirements
5.7.2.3 LCL behaviour when turned ON by command
35 5.7.2.4 LCL behaviour when the LCL is configured to start in OFF mode
36 5.7.2.5 Stability
41 5.7.2.6 Repetitive overload behaviour
44 5.7.2.7 Undervoltage protections at load side and interactions with LCL
47 5.7.2.8 Series connection of LCLs
50 5.7.2.9 Parallel connection of LCLs
52 5.7.2.10 Reverse current tolerance
53 5.7.3 Fault conditions (partially or fully failed LCL)
5.7.3.1 Introduction
5.7.3.2 dI/dt control and current limitation
54 5.7.3.3 Additional switching capability
58 5.7.3.4 LCL switch, dissipative failures
61 5.7.3.5 LCL Status telemetry
62 5.7.3.6 Start-up with an internal LCL failure
5.7.4 RLCL specific requirements
5.7.4.1 RLCL retrigger enable/disable
63 5.7.5 Applicable rating/derating rules
65 5.7.6 Load input filter damping

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BSI PD CEN/TR 17603-20-20:2022
$215.11