In the paper, the method to optimize the rotor structure in variable frequency speed control motors is introduced. The saturation and the skin effect are considered and 2D no-load and load electromagnetic field is cal...In the paper, the method to optimize the rotor structure in variable frequency speed control motors is introduced. The saturation and the skin effect are considered and 2D no-load and load electromagnetic field is calculated in finite elements for a variable frequency speed control motor before and after optimization. Finally, no-load current and operation performance before and after optimization are obtained and the two results are contrasted.展开更多
深度挖掘柔性资源的响应潜力,可以提升园区综合能源系统(Park Integrated Energy System,PIES)运行的经济性、灵活性与低碳性。为此,文章提出一种考虑供需灵活响应的PIES优化调度策略。首先,在分析设备动态能效特性的基础上,引入有机闪...深度挖掘柔性资源的响应潜力,可以提升园区综合能源系统(Park Integrated Energy System,PIES)运行的经济性、灵活性与低碳性。为此,文章提出一种考虑供需灵活响应的PIES优化调度策略。首先,在分析设备动态能效特性的基础上,引入有机闪蒸循环和电热锅炉建立热电联产(Combined Heat and Power,CHP)机组多模态且变工况运行的供给侧灵活响应模型;然后,基于多级阶梯激励补偿机制,在负荷侧建立削减、替代与转移柔性负荷差异化配比的电-冷-热多元需求响应模型;最后,以日运行成本最小为优化目标,构建PIES供需灵活响应的协调优化模型。仿真分析表明,文章所提策略不仅可以提高调度模型的准确度,还可以在促进风电消纳的同时,实现系统经济性、低碳性,供能可靠性、满意度的多维度优化平衡。展开更多
数据采集与监视控制(Supervisory Control and Data Acquisition,SCADA)系统是一套广泛应用于风电机组状态监测的系统。文章提出基于SCADA及振动监测数据的多数据源风电机组变权综合状态评价模型,并进行实例分析。研究表明,该模型在风...数据采集与监视控制(Supervisory Control and Data Acquisition,SCADA)系统是一套广泛应用于风电机组状态监测的系统。文章提出基于SCADA及振动监测数据的多数据源风电机组变权综合状态评价模型,并进行实例分析。研究表明,该模型在风电机组状态评价中是合理有效且可实现的,其评价结果为机组的维修决策及风电场运行优化提供了科学依据。展开更多
文摘In the paper, the method to optimize the rotor structure in variable frequency speed control motors is introduced. The saturation and the skin effect are considered and 2D no-load and load electromagnetic field is calculated in finite elements for a variable frequency speed control motor before and after optimization. Finally, no-load current and operation performance before and after optimization are obtained and the two results are contrasted.
文摘深度挖掘柔性资源的响应潜力,可以提升园区综合能源系统(Park Integrated Energy System,PIES)运行的经济性、灵活性与低碳性。为此,文章提出一种考虑供需灵活响应的PIES优化调度策略。首先,在分析设备动态能效特性的基础上,引入有机闪蒸循环和电热锅炉建立热电联产(Combined Heat and Power,CHP)机组多模态且变工况运行的供给侧灵活响应模型;然后,基于多级阶梯激励补偿机制,在负荷侧建立削减、替代与转移柔性负荷差异化配比的电-冷-热多元需求响应模型;最后,以日运行成本最小为优化目标,构建PIES供需灵活响应的协调优化模型。仿真分析表明,文章所提策略不仅可以提高调度模型的准确度,还可以在促进风电消纳的同时,实现系统经济性、低碳性,供能可靠性、满意度的多维度优化平衡。
文摘数据采集与监视控制(Supervisory Control and Data Acquisition,SCADA)系统是一套广泛应用于风电机组状态监测的系统。文章提出基于SCADA及振动监测数据的多数据源风电机组变权综合状态评价模型,并进行实例分析。研究表明,该模型在风电机组状态评价中是合理有效且可实现的,其评价结果为机组的维修决策及风电场运行优化提供了科学依据。
