Skip to main content
Fachgebiete
Automobil + Motoren Bauwesen + Immobilien Business IT + Informatik Elektrotechnik + Elektronik Energie + Nachhaltigkeit Finance + Banking Management + Führung Marketing + Vertrieb Maschinenbau + Werkstoffe Versicherung + Risiko
DE
EN
Bücher
Zeitschriften
Themenseiten
Organisationspsychologie Projektmanagement Marketing Smart Manufacturing
Weitere Formate
Podcasts Webinare Technik Webinare Wirtschaft Kongresse Veranstaltungskalender Awards
Jetzt Einzelzugang starten
Zugang für Unternehmen
Referenzkunden
SLX-Digitalkonferenz: Zukunftswerkstatt 2024

Mehr Umsatz mit Top-Kontakten

Am 7. Mai erfahren Sie, wie Vertriebsteams Leadgenerierung, Leadnurturing und Leadstrategien effizient steuern können.
Erweiterte Suche
Anmelden
nach oben

2002 | Buch

Introduction Kapitel lesen Erstes Kapitel lesen

Battery Management Systems

Design by Modelling

verfasst von: Henk Jan Bergveld, Wanda S. Kruijt, Peter H. L. Notten

Verlag: Springer Netherlands

Buchreihe : Philips Research Book Series

Enthalten in: Professional Book Archive

Einloggen, um Zugang zu erhalten
insite
SUCHEN

Über dieses Buch

Battery Management Systems - Design by Modelling describes the design of Battery Management Systems (BMS) with the aid of simulation methods. The basic tasks of BMS are to ensure optimum use of the energy stored in the battery (pack) that powers a portable device and to prevent damage inflicted on the battery (pack). This becomes increasingly important due to the larger power consumption associated with added features to portable devices on the one hand and the demand for longer run times on the other hand. In addition to explaining the general principles of BMS tasks such as charging algorithms and State-of-Charge (SoC) indication methods, the book also covers real-life examples of BMS functionality of practical portable devices such as shavers and cellular phones.

Simulations offer the advantage over measurements that less time is needed to gain knowledge of a battery's behaviour in interaction with other parts in a portable device under a wide variety of conditions. This knowledge can be used to improve the design of a BMS, even before a prototype of the portable device has been built. The battery is the central part of a BMS and good simulation models that can be used to improve the BMS design were previously unavailable. Therefore, a large part of the book is devoted to the construction of simulation models for rechargeable batteries. With the aid of several illustrations it is shown that design improvements can indeed be realized with the presented battery models. Examples include an improved charging algorithm that was elaborated in simulations and verified in practice and a new SoC indication system that was developed showing promising results.

The contents of Battery Management Systems - Design by Modelling is based on years of research performed at the Philips Research Laboratories. The combination of basic and detailed descriptions of battery behaviour both in chemical and electrical terms makes this book truly multidisciplinary. It can therefore be read both by people with an (electro)chemical and an electrical engineering background.

Inhaltsverzeichnis

Frontmatter
Chapter 1. Introduction
Abstract
The demand for portable electronic consumer products is rapidly increasing. Examples of fast-growing markets of portable products are notebook computers, cellular and cordless phones and camcorders. Figure 1.1 shows the expected worldwide shipment of cellular handsets until the year 2004 [1], with the total number of handsets sold increasing dramatically. At present, almost half of the shipments of cellular handsets are replacement sales, which means that people who already have a cellular phone buy them. By 2004, almost all cellular handsets sold will be replacement sales.
Henk Jan Bergveld, Wanda S. Kruijt, Peter H. L. Notten
Chapter 2. Battery Management Systems
Abstract
This chapter gives general information on Battery Management Systems (BMS) required as a background in later chapters. Section 2.1 starts with the factors that determine the complexity of a BMS and shows a general block diagram. The function of each part in a BMS is discussed in more detail in section 2.2 and examples of adding BMS intelligence are given. The BMS aspects of two types of portable devices are discussed in section 2.3. This serves to illustrate the theory presented in sections 2.1 and 2.2.
Henk Jan Bergveld, Wanda S. Kruijt, Peter H. L. Notten
Chapter 3. Basic information on batteries
Abstract
Some basic information on batteries is given in this chapter. A historical overview in section 3.1 describes the developments in battery technology. The characteristics of the most important types of batteries that can be obtained on the market today are summarized in section 3.2. Finally, the basic operational mechanism of batteries is described in section 3.3. The information in this section will be used in chapter 4.
Henk Jan Bergveld, Wanda S. Kruijt, Peter H. L. Notten
Chapter 4. Battery modelling
Abstract
This chapter describes the development of simulation models of rechargeable batteries. Battery behaviour is a result of a complex interaction between various electrochemical and physical processes. Therefore, simulation models based on the mathematical description of these processes are a useful tool in optimizing the Battery Management System (BMS) used in portable devices. By applying all sorts of external electronic and thermal stimuli to the model during simulations, the designer of a BMS can not only investigate the development of the battery voltage and temperature, but also the course of each of the various reactions that take place inside the battery. This chapter discusses the development of battery models of this type, which have not yet been reported in the literature in this form.
Henk Jan Bergveld, Wanda S. Kruijt, Peter H. L. Notten
Chapter 5. Battery charging algorithms
Abstract
One of the links in the energy chain is the charger, as explained in chapter 1. In the charger, electrical energy from the mains is transferred via magnetic energy into electrical energy suitable for charging the battery. Two types of control can be distinguished in the charger or power module, notably control of the energy conversion process and control of the charging process; see chapter 2. The latter control process is implemented in the form of a charging algorithm. A charging algorithm is an example of a battery management function with which the battery itself is monitored and the energy conversion process in the charger is controlled in order to charge the battery in an efficient way.
Henk Jan Bergveld, Wanda S. Kruijt, Peter H. L. Notten
Chapter 6. Battery State-of-Charge indication
Abstract
One of the tasks of a Battery Management System is to keep track of a battery’s State-of-Charge (SoC), as discussed in chapter 1 of this book. Information on the SoC can be used to control charging and discharging and it can be signalled to the user. An accurate SoC determination method and an understandable and reliable SoC display to the user are important features for a portable product. However, many examples of poor accuracy and reliability can be found in practice. This can be pretty annoying, especially when a portable device suddenly stops functioning whereas sufficient battery capacity is indicated. A poor reliability of the SoC indication system may induce the use of only part of the available battery capacity. For example, the user may be inclined to recharge the battery every day, even when enough battery capacity is indicated on the portable device. This will lead to more frequent recharging than strictly necessary, which in turn leads to an earlier wear-out of the battery. The effect of inaccuracy of SoC indication can be even worse when the SoC value is also used to control charging. The battery is either not fully charged or it is overcharged. In the former case, the battery will be recharged more often than needed, which will lead to an earlier wear-out. In the latter case, frequent overcharging will lead to a lower cycle life. Some methods with which an SoC indication system can be realized will be described in this chapter.
Henk Jan Bergveld, Wanda S. Kruijt, Peter H. L. Notten
Chapter 7. Optimum supply strategies for Power Amplifiers in cellular phones
Abstract
The market for cellular phones is growing rapidly and cellular phones rank among the most prominent portable devices. All these phones are battery-powered and long use times on a single battery charge are required. The Power Amplifier (PA) draws most of the current from the battery in talk mode. Therefore, a reduction in this current will lead to a significant increase in talk time. This chapter covers powering the PA with the optimum supply voltage for each output power, which leads to a decrease in supply current. As described in chapter 1, this is one of the basic tasks of a Battery Management System.
Henk Jan Bergveld, Wanda S. Kruijt, Peter H. L. Notten
Chapter 8. General conclusions
Abstract
The subject of Battery Management Systems (BMS) is very broad and involves many disciplines. The main focus in this book has been on simulations of BMS. As stated in chapter 1, simulations are a helpful means for obtaining an understanding of the behaviour of complex systems under a wide variety of conditions. Measurements of battery behaviour generally take a lot of time. With battery simulation models, simulations of battery behaviour in a portable device under development can be performed swiftly. The increased understanding of this behaviour can be applied to improve the BMS functionality. So far, no battery models were available for this purpose. Therefore, battery models with which improvements in BMS designs can indeed be realized have been described in this book.
Henk Jan Bergveld, Wanda S. Kruijt, Peter H. L. Notten
Backmatter
Metadaten
Titel
Battery Management Systems
verfasst von
Henk Jan Bergveld
Wanda S. Kruijt
Peter H. L. Notten
Copyright-Jahr
2002
Verlag
Springer Netherlands
Electronic ISBN
978-94-017-0843-2
Print ISBN
978-90-481-6108-9
DOI
https://doi.org/10.1007/978-94-017-0843-2