Checking date: 13/11/2023

Course: 2023/2024

Power Subsystem
Master in Space Engineering (Plan: 479 - Estudio: 360)

Coordinating teacher: BARRADO BAUTISTA, ANDRES

Department assigned to the subject: Electronic Technology Department

Type: Compulsory
ECTS Credits: 2.0 ECTS


Requirements (Subjects that are assumed to be known)
An introductory course on Power Electronics Electric circuit analysis Control theory
Basic competences CB6 To possess and understand knowledge that provides a basis or opportunity to be original in the development and / or application of ideas, often in a research context CB7 Students must know how to apply the knowledge acquired and their ability to solve problems in new or unfamiliar environments within broader (or multidisciplinary) contexts related to their area of study CB8 Students must be able to integrate knowledge and face the complexity of making judgments based on information that, being incomplete or limited, includes reflections on social and ethical responsibilities linked to the application of their knowledge and judgments CB9 Students must know how to communicate their conclusions and the knowledge and ultimate reasons that sustain them to specialized and non-specialized audiences in a clear and unambiguous way CB10 Students must have the learning skills allowing them to continue studying in a way that will be largely self-directed or autonomous. General competences CG1 Capacity for the formulation, critical verification and defense of hypotheses, as well as the design of experimental tests for verification. CG2 Ability to make value judgments and prioritize in making conflicting decisions using systemic thinking. CG4 Ability to work in multidisciplinary teams in a cooperative way to complete work tasks CG5 Ability to handle the English, technical and colloquial language. Specific competences CE6 Ability to understand and apply the knowledge, methods and tools of space engineering to the analysis of the power systems of space vehicles. LEARNING RESULT Electrical power subsystem (EPS) course addresses the production, storage, conversion, distribution and management of the electrical power in a space vehicle. This course tackles from the requirements to the design process. The main basic components of the spacecraft power subsystem are studied, such as primary power sources, including Fuel Cell, Solar PV, Static and Dynamic power; energy storage, studying several types of batteries; power distribution based on power converters, MPPT, relays and protection; and finally the power management. In addition, during the course several design examples are developed such us EPS architecture selection, power balance, solar panel sizing and battery sizing. Thanks to this course, the student will be able to get a general knowledge about the power distribution system of current spacecraft.
Skills and learning outcomes
Description of contents: programme
The program of the subject includes: 1. Electrical Power Subsystem Overview 1.1. Introduction 1.2. Power system functions 1.3. Architecture and components identification 1.4. Design process 2. Primary power sources 2.1. Types of Primary Sources 2.1.1. Primary batteries 2.1.2. Fuel Cell 2.1.3. Solar photovoltaic 2.1.4. Static Power - RTG 2.1.5. Dynamic Power 2.2. Comparative 2.3. Sizing the Solar Panels 3. Energy Storage 3.1. Introduction to batteries 3.2. Primary and secondary batteries: types of batteries 3.3. The battery in the Photovoltaic-Battery System: operating modes 3.4. Photovoltaic-battery system 3.5. Sizing battery system: the design process 4. Primary Power System 4.1 Sequential Switching Shunt Regulator (S3R) 4.2 Sequential Switching Shunt Series Regulator (S4R) 4.3 Three Domain Control 4.4 Maximum Power Point Tracking (MPPT) 4.5 BDR and BCR. 4.6 DC-DC Converters 5. Distribution system 5.1. Latching Current Limiters 6. Secondary power system 6.1. Payload 6.2. Topologies of DC-DC converters 6.3. Point of Load Converters 7. Protections 7.1. Short-circuit and overvoltage 7.2. Failure propagation 8. Redundancy vs Failure 8.1. Failure tolerance 8.2. Triple majority voting 9. Other components of the power subsystem
Learning activities and methodology
AF1 Theoretical class AF2 Practical classes AF3 Practices in computer classroom AF4 Laboratory practices AF6 Group work AF7 Individual student work AF8 Evaluation activities Code activity Nº Total hours Nº HoursPresencial % Student's presence AF1 103 103 100 AF2 45 45 100 AF3 28 28 100 AF4 14 14 100 AF6 67 0 0 AF7 400 0 0 AF8 24 24 100 TOTAL SUBJECT 682 215 32 Teaching methodologies that will be used in this subject MD1 Exhibitions in the teacher's class with the support of computer and audiovisual media, in which the main concepts of the subject are developed and the bibliography is provided to complement the students' learning. MD3 Resolution of practical cases, problems, etc. raised by the teacher individually or in groups   MD5 Preparation of papers and reports individually or in groups
Assessment System
  • % end-of-term-examination 0
  • % of continuous assessment (assigments, laboratory, practicals...) 100

Calendar of Continuous assessment

Basic Bibliography
  • Mukund R. Patel. Spacecraft power system. CRC Press . 2004; ISBN 9780849327865
  • Peter Fortescue (Editor), Graham Swinerd (Editor), John Stark (Editor). Spacecraft Systems Engineering, 4th Edition. Wiley. 2011; ISBN: 978-0-470-75012-4
Additional Bibliography
  • G. M. Hanley. Satellite Power Systems (SPS) Concept Definition Study. Volume VII ¿ System/Subsystems Requirements Data book. NASA Contractor Report 3399. 1981
Detailed subject contents or complementary information about assessment system of B.T.

The course syllabus may change due academic events or other reasons.