20 kW DC/DC converter for highly dynamic applications

MSc.

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20 kW DC/DC converter for highly dynamic applications

Context

Prodrive Technologies is a developer and manufacturer of world-class electronics for a large range of application areas such as industrial, automotive and medical. It comprises over 1300 employees and is one of the fastest growing companies in Europe. The organization is mostly based on two groups: Development and Operations. The Development department is oriented at delivering first-class electronic, mechanic and software solutions. The Operations department is responsible for production, assembly, testing and life-cycle management of electronic products and systems in the range of 1 to more than a million pieces per year.

Prodrive Technologies has a rich history in power- and motor drive systems, especially in high-precision industrial applications. It is foreseen that demand for more compact and more accurate systems will further increase, for example in high-performance positioning systems or electron microscopy. At the same time it is preferred to have more commodity designs or building blocks that can be widely used in new products with minimal effort.

Assignment

Goal/objective
The goal of the assignment is to analyze a high power density non-isolated DC/DC converter intended to supply a highly dynamic application. The objective is to achieve a scalable topology with a power density of at least 15 kW/l. A secondary objective is to minimize the required output buffer capacitance of the converter.

Approach
Starting from a specific set of requirements (input/output voltage/current conditions, power level, EMC limits, etc.), one ‘highest-potential’ topology will be selected. Thereafter, an appropriate control scheme will be derived and a component dimensioning and optimization will be performed, given a set of system constraints (e.g. thermal), design criteria, etc. This requires the development of models for component losses and volume, as well as overall optimization algorithms/routines. The ‘optimal’ solution that is found needs to be verified using a hardware prototype that will be designed, built, and tested.

Methods

- Time and frequency-domain converter modeling
- Derivation of an appropriate modulation scheme
- Detailed loss and volume models of the main converter components
- Multi-objective optimization
- Closed-loop control
- Hardware design and testing (support of mechanical, PCB, and FPGA engineers will be provided)

Deliverables

  • A detailed design model for a scalable non-isolated DC/DC converter with a power density of at least 15 kW per liter;
  • Answer to the question what the optimal implementation/topology is for such a system, and what the optimal achievable performance (in terms of efficiency and volume) are, given the criteria the system constraints imposed (e.g. thermal), and the variation of the component values;
  • Working hardware prototype to verify the models and performance prediction;
  • Report (paper format is acceptable).

Important note: all our graduation assignments are dependent on time. Please see them as an example of the many great things you can do at Prodrive Technologies. If you have the same passion for technology as we do, we always have an assignment for you!

 

Benefits as a student

Next to the benefits which are true for every Prodriver that are listed below, some special benefits must be highlighted for students. First of all you will be treated as a real Prodriver. Your opinion and ideas will be heard and treated as full. Next to this you will get the chance to work with colleagues with a very high level of knowledge in their field and get the chance to use our world class lab and production facilities for your graduation assignment.

浦卓的福利

当你可以证明自己是浦卓的合适人选时,你会在多方面得到回报:你将在公司内获得个人发展的机会,习得大量的专业知识并可在多个方向建立自己的职业规划。浦卓会定期与你一起评估你的职业规划,确保其与你自己制定的个人发展计划相符。除此之外,你会毫无疑问地获得一份非常有市场竞争力的薪资水平以及福利标准。你的薪资会随着你的专业发展一同快速增长,你甚至有机会成为公司的持股人。以上所有都可以在浦卓得以实现。浦卓科技在过去的20多年里保持着每年平均25%的增长速率,可以为你提供一个优秀的发展平台。

关于浦卓

世界上只有为数不多的几家远负盛名的高科技公司。根据我们客户的用户体验,浦卓有幸成为其中之一。浦卓科技是由几位毕业于爱因霍芬理工大学的技术人才于1993年创立的。从那之后,得益于成功的商业理念以及年轻有活力的团队(员工平均年龄28岁),浦卓科技每年都以惊人的速度在发展壮大。现如今,浦卓科技在全球拥有超过1300名技艺精湛、积极性高并且目标导向的员工,全职人力工时1100。

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