In order to address the synergistic optimization of energy efficiency improvement in the waste incineration power plant(WIPP)and renewable energy accommodation,an electricity-hydrogen-waste multi-energy system integra...In order to address the synergistic optimization of energy efficiency improvement in the waste incineration power plant(WIPP)and renewable energy accommodation,an electricity-hydrogen-waste multi-energy system integrated with phase change material(PCM)thermal storage is proposed.First,a thermal energy management framework is constructed,combining PCM thermal storage with the alkaline electrolyzer(AE)waste heat recovery and the heat pump(HP),while establishing a PCM-driven waste drying system to enhance the efficiency of waste incineration power generation.Next,a flue gas treatment method based on purification-separation-storage coordination is adopted,achieving spatiotemporal decoupling between waste incineration and flue gas treatment.Subsequently,a two-stage optimal dispatching strategy for the multi-energy system is developed:the first stage establishes a dayahead economic dispatch model with the objective of minimizing net system costs,while the second stage introduces model predictive control(MPC)to realize intraday rolling optimization.Finally,The optimal dispatching strategies under different scenarios are obtained using the Gurobi solver,followed by a comparative analysis of the optimized operational outcomes.Simulation results demonstrate that the proposed system optimizes the output and operational states of each unit,simultaneously reducing carbon trading costs while increasing electricity sales revenue.The proposed scheduling strategy demonstrates effective grid peak-shaving functionality,thereby simultaneously improving the system’s economic performance and operational flexibility while providing an innovative technical pathway for municipal solid waste(MSW)resource utilization and low-carbon transformation of energy systems.展开更多
In order to solve the problems of potential incident rescue on expressway networks, the opportunity cost-based method is used to establish a resource dispatch decision model. The model aims to dispatch the rescue reso...In order to solve the problems of potential incident rescue on expressway networks, the opportunity cost-based method is used to establish a resource dispatch decision model. The model aims to dispatch the rescue resources from the regional road networks and to obtain the location of the rescue depots and the numbers of service vehicles assigned for the potential incidents. Due to the computational complexity of the decision model, a scene decomposition algorithm is proposed. The algorithm decomposes the dispatch problem from various kinds of resources to a single resource, and determines the original scene of rescue resources based on the rescue requirements and the resource matrix. Finally, a convenient optimal dispatch scheme is obtained by decomposing each original scene and simplifying the objective function. To illustrate the application of the decision model and the algorithm, a case of the expressway network is studied on areas around Nanjing city in China and the results show that the model used and the algorithm proposed are appropriate.展开更多
聚焦在全国统一电力市场环境下,通过电力市场基本原理方法实现全网一体化电力平衡。首先,将全网一体化电力平衡基本原理与机组组合原理相结合,提出了一体化机组组合原理(integrated power balancing security constrained unit commitme...聚焦在全国统一电力市场环境下,通过电力市场基本原理方法实现全网一体化电力平衡。首先,将全网一体化电力平衡基本原理与机组组合原理相结合,提出了一体化机组组合原理(integrated power balancing security constrained unit commitment,IPB-SCUC),及其配套的成本效益计算方法、成本疏导机制和差价合约机制,系统构建出适应全国统一电力市场发展需要的全网一体化电力平衡市场模式,在不改变以平衡区为平衡主体的基本平衡模式下,实现了各地区平衡边界的广泛有序深度开放和全网平衡资源的市场化统一优化调用;其次,以所提全网一体化电力平衡市场模式为内核,系统提出了市场环境下调用全网资源解决通道受阻、电力保供、新能源消纳等电力平衡问题的通用方法;实现了对解决各类平衡问题经济性的量化计算,推动了一体化平衡电力流和价值流的融合统一;最后,基于实际生产运行数据的算例分析验证了所提理论的有效性和实用价值。展开更多
An optimal resource dispatching method is proposed to solve the multiple-response problem under the conditions of potential incidents on freeway networks.Travel time of the response vehicle is selected instead of rout...An optimal resource dispatching method is proposed to solve the multiple-response problem under the conditions of potential incidents on freeway networks.Travel time of the response vehicle is selected instead of route distance as the weight to reflect the impact of traffic conditions on the decisions of rescue resources.According to the characteristics of different types of rescue vehicles the dispatching decision-making time is revised to show the heterogeneity among different rescue vehicle dispatching modes. The genetic algorithm is used to obtain the solutions to the rescue resources dispatching model. A case study shows that the proposed method can accurately reveal the impact of potential incidents on the costs of rescues according to the variations in the types and quantities of rescue resources and the optimal dispatching plan with respect to potential incidents can be obtained.The proposed method is applicable in real world scenarios.展开更多
针对可再生能源和负荷的不确定性制约综合能源系统(integrated energy systems,IES)实现零碳目标的问题,提出了一种考虑不确定性的IES零碳容量规划和多时间尺度优化方法。以新疆某含电、热、冷负荷需求的IES为例,首先,利用多元联合分布...针对可再生能源和负荷的不确定性制约综合能源系统(integrated energy systems,IES)实现零碳目标的问题,提出了一种考虑不确定性的IES零碳容量规划和多时间尺度优化方法。以新疆某含电、热、冷负荷需求的IES为例,首先,利用多元联合分布并结合蒙特卡洛方法模拟可再生能源和负荷的不确定性及相关性。然后,提出利用氢储能电解水过程产生的碱性溶液吸收二氧化碳的IES全生命周期零碳容量规划方法。最后,构建了IES规划周期内的零碳排放调度框架,以协调IES在长时间规划周期和短时间调度周期的零碳优化。并基于该框架设计随机-滚动两阶段优化调度模型,以应对可再生能源和负荷的不确定性,最小化IES综合运行成本。仿真分析结果验证了所提方法在促进可再生能源消纳、减少一次能源消耗、实现零碳排放和经济运行方面的有效性。展开更多
Effective source-load prediction and reasonable dispatching are crucial to realize the economic and reliable operations of integrated energy systems(IESs).They can overcome the challenges introduced by the uncertainti...Effective source-load prediction and reasonable dispatching are crucial to realize the economic and reliable operations of integrated energy systems(IESs).They can overcome the challenges introduced by the uncertainties of new energies and various types of loads in the IES.Accordingly,a robust optimal dispatching method for the IES based on a robust economic model predictive control(REMPC)strategy considering source-load power interval prediction is proposed.First,an operation model of the IES is established,and an interval prediction model based on the bidirectional long short-term memory network optimized by beetle antenna search and bootstrap is formulated and applied to predict the photovoltaic power and the cooling,heating,and electrical loads.Then,an optimal dispatching scheme based on REMPC is devised for the IES.The source-load interval prediction results are used to improve the robustness of the REPMC and reduce the influence of source-load uncertainties on dispatching.An actual IES case is selected to conduct simulations;the results show that compared with other prediction techniques,the proposed method has higher prediction interval coverage probability and prediction interval normalized averaged width.Moreover,the operational cost of the IES is decreased by the REMPC strategy.With the devised dispatching scheme,the ability of the IES to handle the dispatching risk caused by prediction errors is enhanced.Improved dispatching robustness and operational economy are also achieved.展开更多
文摘In order to address the synergistic optimization of energy efficiency improvement in the waste incineration power plant(WIPP)and renewable energy accommodation,an electricity-hydrogen-waste multi-energy system integrated with phase change material(PCM)thermal storage is proposed.First,a thermal energy management framework is constructed,combining PCM thermal storage with the alkaline electrolyzer(AE)waste heat recovery and the heat pump(HP),while establishing a PCM-driven waste drying system to enhance the efficiency of waste incineration power generation.Next,a flue gas treatment method based on purification-separation-storage coordination is adopted,achieving spatiotemporal decoupling between waste incineration and flue gas treatment.Subsequently,a two-stage optimal dispatching strategy for the multi-energy system is developed:the first stage establishes a dayahead economic dispatch model with the objective of minimizing net system costs,while the second stage introduces model predictive control(MPC)to realize intraday rolling optimization.Finally,The optimal dispatching strategies under different scenarios are obtained using the Gurobi solver,followed by a comparative analysis of the optimized operational outcomes.Simulation results demonstrate that the proposed system optimizes the output and operational states of each unit,simultaneously reducing carbon trading costs while increasing electricity sales revenue.The proposed scheduling strategy demonstrates effective grid peak-shaving functionality,thereby simultaneously improving the system’s economic performance and operational flexibility while providing an innovative technical pathway for municipal solid waste(MSW)resource utilization and low-carbon transformation of energy systems.
基金The National Natural Science Foundation of China (No.50422283)the Science and Technology Key Plan Project of Henan Province (No.072102360060)
文摘In order to solve the problems of potential incident rescue on expressway networks, the opportunity cost-based method is used to establish a resource dispatch decision model. The model aims to dispatch the rescue resources from the regional road networks and to obtain the location of the rescue depots and the numbers of service vehicles assigned for the potential incidents. Due to the computational complexity of the decision model, a scene decomposition algorithm is proposed. The algorithm decomposes the dispatch problem from various kinds of resources to a single resource, and determines the original scene of rescue resources based on the rescue requirements and the resource matrix. Finally, a convenient optimal dispatch scheme is obtained by decomposing each original scene and simplifying the objective function. To illustrate the application of the decision model and the algorithm, a case of the expressway network is studied on areas around Nanjing city in China and the results show that the model used and the algorithm proposed are appropriate.
文摘聚焦在全国统一电力市场环境下,通过电力市场基本原理方法实现全网一体化电力平衡。首先,将全网一体化电力平衡基本原理与机组组合原理相结合,提出了一体化机组组合原理(integrated power balancing security constrained unit commitment,IPB-SCUC),及其配套的成本效益计算方法、成本疏导机制和差价合约机制,系统构建出适应全国统一电力市场发展需要的全网一体化电力平衡市场模式,在不改变以平衡区为平衡主体的基本平衡模式下,实现了各地区平衡边界的广泛有序深度开放和全网平衡资源的市场化统一优化调用;其次,以所提全网一体化电力平衡市场模式为内核,系统提出了市场环境下调用全网资源解决通道受阻、电力保供、新能源消纳等电力平衡问题的通用方法;实现了对解决各类平衡问题经济性的量化计算,推动了一体化平衡电力流和价值流的融合统一;最后,基于实际生产运行数据的算例分析验证了所提理论的有效性和实用价值。
基金The National Natural Science Foundation of China(No.71101025)the Science and Technology Key Plan Project of Changzhou(No.CE20125001)
文摘An optimal resource dispatching method is proposed to solve the multiple-response problem under the conditions of potential incidents on freeway networks.Travel time of the response vehicle is selected instead of route distance as the weight to reflect the impact of traffic conditions on the decisions of rescue resources.According to the characteristics of different types of rescue vehicles the dispatching decision-making time is revised to show the heterogeneity among different rescue vehicle dispatching modes. The genetic algorithm is used to obtain the solutions to the rescue resources dispatching model. A case study shows that the proposed method can accurately reveal the impact of potential incidents on the costs of rescues according to the variations in the types and quantities of rescue resources and the optimal dispatching plan with respect to potential incidents can be obtained.The proposed method is applicable in real world scenarios.
文摘针对可再生能源和负荷的不确定性制约综合能源系统(integrated energy systems,IES)实现零碳目标的问题,提出了一种考虑不确定性的IES零碳容量规划和多时间尺度优化方法。以新疆某含电、热、冷负荷需求的IES为例,首先,利用多元联合分布并结合蒙特卡洛方法模拟可再生能源和负荷的不确定性及相关性。然后,提出利用氢储能电解水过程产生的碱性溶液吸收二氧化碳的IES全生命周期零碳容量规划方法。最后,构建了IES规划周期内的零碳排放调度框架,以协调IES在长时间规划周期和短时间调度周期的零碳优化。并基于该框架设计随机-滚动两阶段优化调度模型,以应对可再生能源和负荷的不确定性,最小化IES综合运行成本。仿真分析结果验证了所提方法在促进可再生能源消纳、减少一次能源消耗、实现零碳排放和经济运行方面的有效性。
基金supported by the National Key Research and Development Project of China(2018YFE0122200).
文摘Effective source-load prediction and reasonable dispatching are crucial to realize the economic and reliable operations of integrated energy systems(IESs).They can overcome the challenges introduced by the uncertainties of new energies and various types of loads in the IES.Accordingly,a robust optimal dispatching method for the IES based on a robust economic model predictive control(REMPC)strategy considering source-load power interval prediction is proposed.First,an operation model of the IES is established,and an interval prediction model based on the bidirectional long short-term memory network optimized by beetle antenna search and bootstrap is formulated and applied to predict the photovoltaic power and the cooling,heating,and electrical loads.Then,an optimal dispatching scheme based on REMPC is devised for the IES.The source-load interval prediction results are used to improve the robustness of the REPMC and reduce the influence of source-load uncertainties on dispatching.An actual IES case is selected to conduct simulations;the results show that compared with other prediction techniques,the proposed method has higher prediction interval coverage probability and prediction interval normalized averaged width.Moreover,the operational cost of the IES is decreased by the REMPC strategy.With the devised dispatching scheme,the ability of the IES to handle the dispatching risk caused by prediction errors is enhanced.Improved dispatching robustness and operational economy are also achieved.
