A statistical signal processing technique was proposed and verified as independent component analysis(ICA) for fault detection and diagnosis of industrial systems without exact and detailed model.Actually,the aim is t...A statistical signal processing technique was proposed and verified as independent component analysis(ICA) for fault detection and diagnosis of industrial systems without exact and detailed model.Actually,the aim is to utilize system as a black box.The system studied is condenser system of one of MAPNA's power plants.At first,principal component analysis(PCA) approach was applied to reduce the dimensionality of the real acquired data set and to identify the essential and useful ones.Then,the fault sources were diagnosed by ICA technique.The results show that ICA approach is valid and effective for faults detection and diagnosis even in noisy states,and it can distinguish main factors of abnormality among many diverse parts of a power plant's condenser system.This selectivity problem is left unsolved in many plants,because the main factors often become unnoticed by fault expansion through other parts of the plants.展开更多
在中长期水火发电调度中考虑检修计划的影响是目前中长期水火发电调度面临的难题。利用现代整数代数建模技术，建立发电计划和检修计划协调优化的多场景调度模型。在该模型中，鉴于设备检修计划的连续性，在预测场景树的基础上，将场景...在中长期水火发电调度中考虑检修计划的影响是目前中长期水火发电调度面临的难题。利用现代整数代数建模技术，建立发电计划和检修计划协调优化的多场景调度模型。在该模型中，鉴于设备检修计划的连续性，在预测场景树的基础上，将场景节点划分成不同的场景，通过节点和场景关联矩阵，实现多场景下设备检修模型的构建。同时，鉴于中长期调度计划中发电计划和检修计划对时段间隔要求的不同，分别设置电量相关节点和电力相关节点，实现中长期发电计划和检修计划的协调。上述模型是一个大规模混合整数线性规划（mixed integer linear programming，MILP）问题，采用商用MILP求解器进行求解。大规模实际水火电系统的实例分析结果表明，所提模型和方法是可行、有效的。展开更多
为实现双碳背景下的低碳化发展,解决综合能源系统的多能供应及节能减排问题,提出含一种光热电站及氢储能的综合能源系统低碳优化运行策略。通过分析热能存储(thermal energy storage,TES)系统与氢储能系统联合运行,建立了多储能联供模型...为实现双碳背景下的低碳化发展,解决综合能源系统的多能供应及节能减排问题,提出含一种光热电站及氢储能的综合能源系统低碳优化运行策略。通过分析热能存储(thermal energy storage,TES)系统与氢储能系统联合运行,建立了多储能联供模型,有效地实现电-热能量的相互转移,提高能源利用率,优化系统的运行灵活性。将碳交易和碳税引入系统决策中,构建以购能成本、运维成本、碳交易成本等综合成本最小为目标的综合能源系统低碳调度优化模型。最后分析了不同场景运行,对优化模型进行仿真分析。结果表明,考虑TES和氢储能协调调度能够有效的降低运行成本、减少碳排放。展开更多
基金Project(217/s/458)supported by Azarbaijan Shahid Madani University,Iran
文摘A statistical signal processing technique was proposed and verified as independent component analysis(ICA) for fault detection and diagnosis of industrial systems without exact and detailed model.Actually,the aim is to utilize system as a black box.The system studied is condenser system of one of MAPNA's power plants.At first,principal component analysis(PCA) approach was applied to reduce the dimensionality of the real acquired data set and to identify the essential and useful ones.Then,the fault sources were diagnosed by ICA technique.The results show that ICA approach is valid and effective for faults detection and diagnosis even in noisy states,and it can distinguish main factors of abnormality among many diverse parts of a power plant's condenser system.This selectivity problem is left unsolved in many plants,because the main factors often become unnoticed by fault expansion through other parts of the plants.
文摘在中长期水火发电调度中考虑检修计划的影响是目前中长期水火发电调度面临的难题。利用现代整数代数建模技术，建立发电计划和检修计划协调优化的多场景调度模型。在该模型中，鉴于设备检修计划的连续性，在预测场景树的基础上，将场景节点划分成不同的场景，通过节点和场景关联矩阵，实现多场景下设备检修模型的构建。同时，鉴于中长期调度计划中发电计划和检修计划对时段间隔要求的不同，分别设置电量相关节点和电力相关节点，实现中长期发电计划和检修计划的协调。上述模型是一个大规模混合整数线性规划（mixed integer linear programming，MILP）问题，采用商用MILP求解器进行求解。大规模实际水火电系统的实例分析结果表明，所提模型和方法是可行、有效的。
文摘为实现双碳背景下的低碳化发展,解决综合能源系统的多能供应及节能减排问题,提出含一种光热电站及氢储能的综合能源系统低碳优化运行策略。通过分析热能存储(thermal energy storage,TES)系统与氢储能系统联合运行,建立了多储能联供模型,有效地实现电-热能量的相互转移,提高能源利用率,优化系统的运行灵活性。将碳交易和碳税引入系统决策中,构建以购能成本、运维成本、碳交易成本等综合成本最小为目标的综合能源系统低碳调度优化模型。最后分析了不同场景运行,对优化模型进行仿真分析。结果表明,考虑TES和氢储能协调调度能够有效的降低运行成本、减少碳排放。
