ABB糖业运用的变速传动技术白皮书.pdf

— WHITE PAPER Benefits of variable speed drives in sugar production — Table of contents 1. Introduction – challenges facing sugar producers 2. How can VSD systems help? 3. A solution for almost every application 3.1 Power plant 3.2 Production processes 3.2.1 Sugarcane preparation 3.2.2 Sugar beet preparation 3.2.3 Pumps 3.2.4 Centrifuges 4. Selecting the optimal vendor for drives and motors 5. Conclusion 6. Case studies Case study 1 Case study 2 Case study 3 Image 1: The energy train, describing how chemical energy is converted to electric energy. Image 2: Sugarcane processing: main cost drivers and relative energy consumption of individual process steps. Image 3: Duty cycle of sugar centrifuge using regenerative drive for energy recovery. — Introduction – challenges facing sugar producers Sugar is a well-established industry and rapidly ag- power plants. This is because sugar plants are lo- ing sugar plants are facing a lot of challenges. cated close to growing areas, often in remote Increasing costs and highly competitive markets are regions where the electricity network is weak. Up- forcing plants to find new ways to improve their grading to new equipment, however, could make the profitability. The problem is that many plants’ exist- system more reliable and efficient. ing production machinery is less efficient and reliable than modern equivalents. At the same time, process data cannot easily be ac- cessed when using older production machinery, Unpla