Model‐based systems engineering approach to the study of electromagnetic interference and compatibility in wireless powered microelectromechanical systems

IF 1.6 3区工程技术 Q4 ENGINEERING, INDUSTRIAL Systems Engineering Pub Date : 2023-11-07 DOI:10.1002/sys.21733

Juan A. Martinez‐Rojas, Jose L. Fernandez‐Sanchez, Miguel Fernandez‐Munoz, Rocio Sanchez‐Montero, Pablo L. Lopez‐Espi, Efren Diez‐Jimenez

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Abstract

Abstract Electromagnetic Interference and Compatibility (EMI–EMC) are a serious problem in Microelectromechanical Systems (MEMS), and specially in powered by wireless energy transfer MEMS. Most MEMS have dimensions in the order of 1 mm or less, thus, most of the suitable electromagnetic radiation sources have wavelengths larger than this, making isolation of electromagnetic effects very difficult. Model‐Based Systems Engineering (MBSE) can be an excellent tool to deal with EMI—EMC in MEMS during early design phases. In this work, we present a problem‐solving procedure and integration of EMI—EMC in MEMS from a Model‐Based Systems Engineering perspective. This approach is described in detail by a real example using a procedure based on nine steps fully integrated with the proposed systems engineering methodology. For example, the use of context diagrams (IBDs) and N SQUARE charts to describe EMC interactions is explained in detail. The system is formed by a Wireless Power Transfer (WPT) subsystem working near 2.45 or 4.5 GHz coupled to an electromagnetic micromotor. This micromotor contains copper microcoils which can receive electromagnetic radiation directly at the same time that the WPT subsystem. The greatest difficulty is, then, to power the WPT while isolating the micromotor, and optimizing the coupling interface. A summary of the most important EMC concepts and tools are reviewed from the systems engineer perspective and possible problems during the design and testing phases are discussed in detail using the example.

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基于模型的系统工程方法研究无线供电微机电系统中的电磁干扰和兼容性

摘要电磁干扰与兼容(EMI-EMC)是微机电系统(MEMS)，特别是以无线能量传输为动力的微机电系统(MEMS)中的一个重要问题。大多数MEMS的尺寸在1毫米或更小，因此，大多数合适的电磁辐射源的波长都比这大，使得电磁效应的隔离非常困难。基于模型的系统工程(MBSE)是在MEMS早期设计阶段处理EMI-EMC的绝佳工具。在这项工作中，我们从基于模型的系统工程的角度提出了一个解决问题的程序和MEMS中EMI-EMC的集成。该方法通过一个真实的例子来详细描述，该例子使用基于九个步骤的过程，与所提出的系统工程方法完全集成。例如，详细解释了使用上下文图(ibd)和N SQUARE图来描述EMC相互作用。该系统由工作在2.45 GHz或4.5 GHz附近的无线功率传输(WPT)子系统与电磁微电机耦合形成。该微电机采用铜质微线圈，可与WPT分系统同时直接接收电磁辐射。因此，最大的困难是在隔离微电机的同时为WPT供电，并优化耦合接口。本文从系统工程师的角度总结了最重要的EMC概念和工具，并通过示例详细讨论了设计和测试阶段可能出现的问题。

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来源期刊

Systems Engineering 工程技术-工程：工业

CiteScore

5.10

自引率

20.00%

发文量

审稿时长

6 months

期刊介绍： Systems Engineering is a discipline whose responsibility it is to create and operate technologically enabled systems that satisfy stakeholder needs throughout their life cycle. Systems engineers reduce ambiguity by clearly defining stakeholder needs and customer requirements, they focus creativity by developing a system’s architecture and design and they manage the system’s complexity over time. Considerations taken into account by systems engineers include, among others, quality, cost and schedule, risk and opportunity under uncertainty, manufacturing and realization, performance and safety during operations, training and support, as well as disposal and recycling at the end of life. The journal welcomes original submissions in the field of Systems Engineering as defined above, but also encourages contributions that take an even broader perspective including the design and operation of systems-of-systems, the application of Systems Engineering to enterprises and complex socio-technical systems, the identification, selection and development of systems engineers as well as the evolution of systems and systems-of-systems over their entire lifecycle. Systems Engineering integrates all the disciplines and specialty groups into a coordinated team effort forming a structured development process that proceeds from concept to realization to operation. Increasingly important topics in Systems Engineering include the role of executable languages and models of systems, the concurrent use of physical and virtual prototyping, as well as the deployment of agile processes. Systems Engineering considers both the business and the technical needs of all stakeholders with the goal of providing a quality product that meets the user needs. Systems Engineering may be applied not only to products and services in the private sector but also to public infrastructures and socio-technical systems whose precise boundaries are often challenging to define.