Lighting Control: Possibilities in Cost and Energy-Efficient Lighting Control Techniques

Abstract: In a modern society there is a constant increase in electrical use but at the same time the environmental awareness among consumers is rising. This master theses aims at investigating the possibilities in cost and energy efficient lighting control techniques. This master thesis is written for the Measurement Technology and Industrial Electrical Engineering division, IEA, within the Faculty of Engineering of Lund University in cooperation with AB Regin in Landskrona. Lighting control systems are studied from an energy saving perspective and the relation to reduction of carbon dioxide emission is addressed. Designing tools, such as LENI and ELI, are introduced and their relation to international standards in electrical and lighting design. To illustrate the cost efficiency of lighting control systems, a case study is conducted at Schenker logistics in Växjö, revealing the payback time of the lighting control installation. A market study is carried out, where available lighting control systems are investigated. Different protocols are compared based on parameters such as data rate, power consumption and cost. The aim of this study is to select one existing system to be implemented on one of AB Regin’s platforms. For this purpose a selection criteria is composed. Digital Addressable Lighting System, DALI, is chosen for implementation along with the EXOcompact controller from AB Regin. The implementation deals with building an interface between the EXOline, used by AB Regin, and the DALI line, defined by the DALI protocol. A DALI Master Unit is built around an Atmel ATmega186 microprocessor and some testing of sending messages from the EXO system to a DALI enabled lamp is performed. Based on the case study conducted and other sources, the cost and energy efficiency of lighting controle systems are proven. The concept of controlling lights from AB Regin’s EXOSystem is also proven with implementation and testing.