规划支持系统(PLANNING SUPPORT SYSTEM,简称PSS)是一个完整的信息系统应用框架,融合了一系列基于计算机技术的信息分析方法和模型,它面向规划师,并辅助其完成特定的规划任务. 详细阐述了规划支持系统的含义、具体的规划支持软件工具“W...规划支持系统(PLANNING SUPPORT SYSTEM,简称PSS)是一个完整的信息系统应用框架,融合了一系列基于计算机技术的信息分析方法和模型,它面向规划师,并辅助其完成特定的规划任务. 详细阐述了规划支持系统的含义、具体的规划支持软件工具“WHAT IF?”的概念模型,并结合实例探讨了在实践中的应用,以期对我国的城市规划理论和实践有所启迪.展开更多
计及分布式可再生能源不确定性因素的综合能源系统(Integrated Energy System,IES)规划更加接近实际情况,也是实现多能协调和IES优化运行的基础。考虑光伏发电出力的间歇性和波动性,提出了一种计及不确定性的含冷、热、电、气多能流的...计及分布式可再生能源不确定性因素的综合能源系统(Integrated Energy System,IES)规划更加接近实际情况,也是实现多能协调和IES优化运行的基础。考虑光伏发电出力的间歇性和波动性,提出了一种计及不确定性的含冷、热、电、气多能流的综合能源系统容量规划模型及其求解方法。首先,为了精确地模拟光伏发电的不确定性,利用场景法描述其不确定性并运用基于Wasserstein概率距离的场景削减0-1规划模型对大量不确定性场景进行削减。在此基础上,建立以投资运行成本之和最小为目标函数的IES容量规划模型。其次,由于场景分析法难以直接得到最优规划方案,采用基于场景分析法的两阶段规划策略对此模型进行求解得到含整数变量的多能源容量规划方案。基于算例的仿真结果表明:所提出方法能够经济且可靠地满足整个规划周期内系统各节点、各类型负荷需求。展开更多
This paper uses a novel scenario generation method for tackling the uncertainties of wind power in the transmission network expansion planning(TNEP)problem.A heuristic moment matching(HMM)method is first applied to ge...This paper uses a novel scenario generation method for tackling the uncertainties of wind power in the transmission network expansion planning(TNEP)problem.A heuristic moment matching(HMM)method is first applied to generate the typical scenarios for capturing the stochastic features of wind power,including expectation,standard deviation,skewness,kurtosis,and correlation of multiple wind farms.Then,based on the typical scenarios,a robust TNEP problem is presented and formulated.The solution of the problem is robust against all the scenarios that represent the stochastic features of wind power.Three test systems are used to verify the HMM method and is compared against Taguchi’s Orthogonal Array(OA)method.The simulation results show that the HMM method has better performance than the OA method in terms of the trade-off between robustness and economy.Additionally,the main factors influencing the planning scheme are studied,including the number of scenarios,wind farm capacity,and penalty factors,which provide a reference for system operators choosing parameters.展开更多
文摘规划支持系统(PLANNING SUPPORT SYSTEM,简称PSS)是一个完整的信息系统应用框架,融合了一系列基于计算机技术的信息分析方法和模型,它面向规划师,并辅助其完成特定的规划任务. 详细阐述了规划支持系统的含义、具体的规划支持软件工具“WHAT IF?”的概念模型,并结合实例探讨了在实践中的应用,以期对我国的城市规划理论和实践有所启迪.
文摘计及分布式可再生能源不确定性因素的综合能源系统(Integrated Energy System,IES)规划更加接近实际情况,也是实现多能协调和IES优化运行的基础。考虑光伏发电出力的间歇性和波动性,提出了一种计及不确定性的含冷、热、电、气多能流的综合能源系统容量规划模型及其求解方法。首先,为了精确地模拟光伏发电的不确定性,利用场景法描述其不确定性并运用基于Wasserstein概率距离的场景削减0-1规划模型对大量不确定性场景进行削减。在此基础上,建立以投资运行成本之和最小为目标函数的IES容量规划模型。其次,由于场景分析法难以直接得到最优规划方案,采用基于场景分析法的两阶段规划策略对此模型进行求解得到含整数变量的多能源容量规划方案。基于算例的仿真结果表明:所提出方法能够经济且可靠地满足整个规划周期内系统各节点、各类型负荷需求。
基金supported in part by the National Natural Science Foundation of China under Grant No.51377027The National Basic Research Program of China under Grant No.2013CB228205by Innovation Project of Guangxi Graduate Education under Grant No.YCSZ2015053.
文摘This paper uses a novel scenario generation method for tackling the uncertainties of wind power in the transmission network expansion planning(TNEP)problem.A heuristic moment matching(HMM)method is first applied to generate the typical scenarios for capturing the stochastic features of wind power,including expectation,standard deviation,skewness,kurtosis,and correlation of multiple wind farms.Then,based on the typical scenarios,a robust TNEP problem is presented and formulated.The solution of the problem is robust against all the scenarios that represent the stochastic features of wind power.Three test systems are used to verify the HMM method and is compared against Taguchi’s Orthogonal Array(OA)method.The simulation results show that the HMM method has better performance than the OA method in terms of the trade-off between robustness and economy.Additionally,the main factors influencing the planning scheme are studied,including the number of scenarios,wind farm capacity,and penalty factors,which provide a reference for system operators choosing parameters.
