Energy Efficiency Improvements in Electric Motors and Drives

ISBN-13: 9783540630685 / Angielski / Miękka / 1997 / 511 str.

Anibal de Almeida; Anibal De Almeida; Paolo Bertoldi

Opis

The reduction of energy consumption through improvements in energy efficiency has become an important goal for all countries, in order to improve the efficiency of the economy, to increase energy supply security, and to reduce the emissions of CO and other pollutants caused by power. generation. 2 Electric motors use over half of all electricity consumed in developed countries. Typically 60-80% of the electricity which is used in the industrial sector and about 35% of the electricity used in the commercial sector in the European Union is consumed by motors. In industry, a motor consumes an annual quantity of electricity which corresponds to approximately 5 times its purchase price, throughout its whole life of aroun 12 to 20 years. Motors are by far the most important type of electric load. They are used in all sectors and in a wide range of applications, namely the following: fans, compressors, pumps, mills, winders, elevators, transports, home appliances, and office equipment, etc. It is their wide use that makes motor drive systems one of the main targets to achieve significant energy savings. As motors are the largest USers of electrical energy, even small efficiency improvements will produce very large energy savings."

Spis treści

I — Introduction.- Energy-Efficient Motor Technologies.- II — The Relevance of Motors and Drives.- Characterisation of the Electricity Use in European Union and the Savings Potential in 2010.- The United States Motor Systems Baseline: Inventory and Trends.- Motors and Drives:The Challenges to a Global Company.- Efficient Use of Electricity in Motors and Drives: The Utilities’ Perspective.- III — Energy-Efficient Motors.- The Whole Life Efficiency of Electric Motors — UK Developments.- Energy Efficient Motors.- Motor Developments and Energy Efficiency.- Efficiency Improvements in Induction Motors.- Induction Motor Technology: Experience in Design Optimization of High Efficiency Induction Motors.- Electric Motor and Belt Retrofits: Measured Savings and Lessons Learned.- IV — Energy Savings with Electric Drives.- Efficiency Gains in Electrical Drive Systems.- Electronic Drive Systems: A Major Source of Energy Savings.- Electric Variable Speed Drives: Development (1–300 KW) and Some Impacts on Energy Savings.- V — Advanced Motor and Drive Technologies.- Power Electronics and Electrical Drives, a Key to Flexible and Efficient Electromechanical Energy Conversion.- Advanced Motor Technologies: Reluctance Motors.- Advanced Motor Technologies: Converter Fed Machines (CFMs).- Advanced Motor Technologies: Synchronous Motors and Drives.- VI — Efficiency Testing Standards.- Efficiency Measurement Testing Standards Stray Loss, the Key to Efficiency Determination.- Comparative Efficiency Measurements IEC 34-2 vs IEEE 112.- Efficiency Measurement Testing and Labeling.- Considerations about the Determination and Designation of the Efficiency of Electric Machines.- VII — Policies.- Strategies to Promote Energy-Efficient Motor Systems.- Barriers Towards Successful Technology Transfer and Commercialization of Energy Efficient Advanced Motors and Drives.- Electric Motor Energy Efficiency Regulations: The Canadian Experience.- United States Department of Energy: National Energy Efficiency Program for Consumer Products and Commercial Equipment.- Industrial Motor Standards in Latin America.- VIII — Programmes I (America and Far East).- Overview of Programmes to Promote Energy Efficient Motor Systems in the United States.- A National Strategy for Energy Efficient Industrial Motor-Driven Systems.- High Efficient Motors in Brazil: a Perspective.- Energy Efficiency of Electric Motors and Drives: Australian and New Zealand Programmes.- IX — Programmes II (Europe).- Calculation of Energy Savings from Drives: The French Demand Side Management Approach.- Italian Programmes.- RAVEL — The Swiss Energy Programme: Information and Training in Efficient Drives and Energy Saving.- Energy Efficiency Improvements in Motors and Drives: United Kingdom Programmes.- The Danish High Efficiency Motor Campaign 1996–1998.- The Dutch Programme on Efficient Motors and Drives.- X — Motor Databases.- MotorMaster+: The Evolution of a Motor Energy Management Tool.- Data Integrity and the Canadian High-Efficiency Motors Database.- The Selection of Energy-Efficient Motors from Catalogues.

O autorze

Professor Dr.-Ing. Werner Leonhard war Direktor des Instituts für Regelungstechnik der Technischen Universität Braunschweig.