Energy Management for an 8000 hp Hybrid Hydraulic Mining Shovel
Energy Management for an 8000 hp Hybrid Hydraulic Mining Shovel
复制标题
8000 马力混合液压矿用铲的能源管理
DOI：
10.1109/itec.2015.7167527
复制
发表时间：
2015
影响因子：
4.4
通讯作者：
A. Nasiri
中科院分区：
文献类型：
--
作者：
P. Miller;A. Nasiri
近年来，对混合架构的概念越来越感兴趣，其渗透到重工业机器中，包括液压采矿铲（HMS）。实现提高机器效率、生产率和性能、减少排放和延长使用寿命是开发混合铲结构的主要目标。本文提出了一种电力HMS的能量管理概念，它使用高功率密度的能量存储系统来补充柴油发电机。一个2.25兆瓦的超级电容器系统被施加到改善缓慢的动态响应的柴油发动机在突然的负载变化，并通过保持最佳的发动机转速，以减少发动机的功率要求。除了发动机动态性能的改善外，超级电容系统还能在峰值功率需求期间支持发动机，从而实现更小的发动机尺寸，从而实现更高的燃油节省和更少的废气排放。详细的控制方案的转换器和系统的描述。提供并讨论了一台8000马力采矿铲的模拟、非车载测试和车载测试结果。机器在不同的负载条件下运转平稳。初步评估表明，与120吨的传统液压机相比，机器生产率提高了30%，燃油效率提高了26%。
There has been an increasing interest in concept of hybrid architecture which is penetrating the heavy industry machines, in recent years, including for hydraulic mining shovels (HMSs). Achieving increased machine efficiency, productivity, and performance, reduced emissions, and prolonged lifetime are the main goals in developing hybrid shovel structures. This paper presents the energy management concept for an electric HMS, which uses high power density energy storage systems to supplement the diesel-powered generators. A 2.25-MW ultracapacitor system is applied to improve the sluggish dynamic response of the diesel engines during sudden load changes and to reduce the engine power requirements by maintaining an optimal engine speed. In addition to the engine dynamic improvement, the ultracapacitor system supports the engine during peak power demand allowing for a smaller engine size, which results in higher fuel savings and less exhaust emissions. Detailed control schemes for the converters and system are described. Results of simulations, off-board testing, and on-board testing for an implemented 8000 hp mining shovel are provided and discussed. The machine operates smoothly at varying load conditions. The initial assessments indicate a 30% increase in machine productivity and 26% increase in fuel efficiency compared with a 120-ton conventional hydraulic machine.