EN 16603-60-10:2014
(Main)Space engineering - Control performances
Space engineering - Control performances
This standard deals with control systems developed as part of a space project. It is applicable to all the elements of a space system, including the space segment, the ground segment and the launch service segment.
It addresses the issue of control performance, in terms of definition, specification, verification and validation methods and processes.
The standard defines a general framework for handling performance indicators, which applies to all disciplines involving control engineering, and which can be applied as well at different levels ranging from equipment to system level. It also focuses on the specific performance indicators applicable to the case of closed-loop control systems – mainly stability and robustness.
Rules are provided for combining different error sources in order to build up a performance error budget and use this to assess the compliance with a requirement.
NOTE 1 Although designed to be general, one of the major application field for this Standard is spacecraft pointing. This justifies why most of the examples and illustrations are related to AOCS problems.
NOTE 2 Indeed the definitions and the normative clauses of this Standard apply to pointing performance; nevertheless fully specific pointing issues are not addressed here in detail (spinning spacecraft cases for example). Complementary material for pointing error budgets can be found in ECSS-E-HB-60-10.
NOTE 3 For their own specific purpose, each entity (ESA, national agencies, primes) can further elaborate internal documents, deriving appropriate guidelines and summation rules based on the top level clauses gathered in this ECSS-E-ST-60-10 standard.
This standard may be tailored for the specific characteristic and constrains of a space project in conformance with ECSS-S-ST-00.
Raumfahrttechnik - Steuerungsleistung
Ingénierie spatiale - Performance de systèmes de contrôle
Vesoljska tehnika - Zmogljivost krmiljenja
Standard EN 16603-60-10 zajema nadzorne sisteme, razvite kot del vesoljskega projekta. Uporablja se za vse elemente vesoljskega sistema, vključno z vesoljskim segmentom, zemeljskim segmentom in lansirnimi storitvami. Obravnava zmogljivost krmiljenja v smislu opredelitve, določanja, preverjanja in potrjevanja metod in postopkov. Standard določa splošen okvir za obravnavanje kazalnikov uspešnosti, ki se uporablja za vse discipline, povezane s krmilnim inženiringom, in ki ga je mogoče uporabiti na različnih ravneh, od opreme do sistemske ravni. Osredotoča se tudi na posebne kazalnike zmogljivosti, ki se uporabljajo v primeru krmilnih sistemov z zaprto zanko, predvsem pri stabilnosti in robustnosti. Pravila so na voljo za kombiniranje različnih virov napak, da bi se zgradil seznam zmogljivostnih napak in se nato uporabil za oceno skladnosti z zahtevo. Ta standard se lahko prilagodi posameznim lastnostim in omejitvam vesoljskega projekta v skladu s standardom ECSS-S-ST-00.
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Vesoljska tehnika - Zmogljivost krmiljenjaRaumfahrttechnik - SteuerungsleistungIngénierie spatiale - Performance de systèmes de contôleSpace engineering - Control performances49.140Vesoljski sistemi in operacijeSpace systems and operationsICS:Ta slovenski standard je istoveten z:EN 16603-60-10:2014SIST EN 16603-60-10:2014en,fr,de01-november-2014SIST EN 16603-60-10:2014SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16603-60-10
September 2014 ICS 49.140
English version
Space engineering - Control performances
Ingénierie spatiale - Performance de systèmes de contrôle Raumfahrttechnik - Steuerungsleistung This European Standard was approved by CEN on 1 March 2014.
CEN and CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN and CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN and CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN and CENELEC members are the national standards bodies and national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels © 2014 CEN/CENELEC All rights of exploitation in any form and by any means reserved worldwide for CEN national Members and for CENELEC Members. Ref. No. EN 16603-60-10:2014 E SIST EN 16603-60-10:2014
Use of performance error indices . 29 A.1 Formulating error requirements. 29 A.1.1 More about error indices . 29 A.1.2 Statistical interpretation of requirements . 30 A.1.3 Knowledge requirements. 32 A.1.4 Specifying the timescales for requirements . 32 A.2 More about performance error budgets . 34 A.2.1 When to use an error budget . 34 A.2.2 Identifying and quantifying the contributing errors . 35 A.2.3 Combining the errors . 36 A.2.4 Comparison with requirements . 38 Annex B (informative) Inputs to an error budget . 40 B.1 Overview . 40 B.2 Bias errors . 41 B.3 Random errors . 42 B.4 Periodic errors (short period) . 44 B.5 Periodic errors (long period) . 44 B.6 Distributions of ensemble parameters . 45 B.7 Using the mixed statistical distribution . 48 Annex C (informative) Worked example . 49 C.1 Scenario and requirements . 49 C.2 Assessing the contributing errors . 50 C.3 Compiling the pointing budgets . 52 Annex D (informative) Correspondence with the pointing error handbook . 54 References . 55 Bibliography . 56
Figures Figure A-1 : Example showing the APE, MPE and RPE error indices . 30 Figure A-2 : Example showing the PDE and PRE error indices . 30 Figure A-3 : Example of a statistical ensemble of errors. . 31 Figure A-4 : The different ways in which a requirement for P(|ε|<1º) > 0,9 can be met . 32 Figure A-5 : Illustration of how the statistics of the pointing errors differ depending on which statistical interpretation is used . 32 SIST EN 16603-60-10:2014
Tables Table B-1 : Parameters whose distributions are assessed for the different pointing error indices (knowledge error indices are similar) . 41 Table B-2 : Budget contributions from bias errors, where B represents the bias . 42 Table B-3 : Budget contributions from zero mean Gaussian random errors . 43 Table B-4 : Uniform Random Errors (range 0-C) . 43 Table B-5 : Budget contributions for periodic errors (low period sinusoidal) . 44 Table B-6 : Budget contributions for periodic errors (long period sinusoidal) . 45 Table B-7 : Some common distributions of ensemble parameters and their properties . 47 Table C-1 : Example of contributing errors, and their relevant properties . 51 Table C-2 : Example of distribution of the ensemble parameters . 52 Table C-3 : Example of pointing budget for the APE index . 53 Table C-4 : Example of pointing budget for the RPE index . 53 Table D-1 : Correspondence between Pointing error handbook and ECSS-E-ST-60-10 indicators . 54
It is not intended to substitute to textbook material on automatic control theory, neither in this standard nor in the associated handbook. The readers and the users are assumed to possess general knowledge of control system engineering and its applications to space missions. SIST EN 16603-60-10:2014
The standard defines a general framework for handling performance indicators, which applies to all disciplines involving control engineering, and which can be applied as well at different levels ranging from equipment to system level. It also focuses on the specific performance indicators applicable to the case of closed-loop control systems – mainly stability and robustness. Rules are provided for combining different error sources in order to build up a performance error budget and use this to assess the compliance with a requirement. NOTE 1 Although designed to be general, one of the major application field for this Standard is spacecraft pointing. This justifies why most of the examples and illustrations are related to AOCS problems.
NOTE 2 Indeed the definitions and the normative clauses of this Standard apply to pointing performance; nevertheless fully specific pointing issues are not addressed here in detail (spinning spacecraft cases for example). Complementary material for pointing error budgets can be found
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