根据T型中点箝位(T-type neutral point clamped,TNPC)型光伏并网逆变器拓扑结构建立端口受控的耗散哈密顿(port controlled Hamiltonian with dissipation,PCHD)数学模型。基于此数学模型,采用互联和阻尼配置无源控制(interconnection ...根据T型中点箝位(T-type neutral point clamped,TNPC)型光伏并网逆变器拓扑结构建立端口受控的耗散哈密顿(port controlled Hamiltonian with dissipation,PCHD)数学模型。基于此数学模型,采用互联和阻尼配置无源控制(interconnection and damping assignment passivity-based control,IDA-PBC)方法设计控制器。介绍三电平空间矢量调制算法的原理及实现方法。仿真结果表明,该文设计的基于PCHD模型的TNPC型光伏并网逆变器无源控制器能够使光伏并网逆变器实现网侧单位功率因数、电流低谐波;同时,使并网逆变器具有良好的动态、静态特性。展开更多
The objective of this paper is to model a hybrid power system for buildings,which is technically feasible and economically optimal.With a view to promote renewable energy sources,photovoltaics and wind turbines are in...The objective of this paper is to model a hybrid power system for buildings,which is technically feasible and economically optimal.With a view to promote renewable energy sources,photovoltaics and wind turbines are integrated with the grid connected building.The system is modeled and the optimal system configuration is estimated with the help of hybrid optimization model for electric renewables(HOMER).The logic is illustrated with a case study based on the practical data of a building located in southern India.This building is associated with 3.4 MWh/day priority load(peak load as 422 kW),as well as 3.3 MWh/day deferrable load(peak load as 500 kW).Sensitivity analysis is performed to deal with uncertainties such as the increase in electricity consumption and grid tariff,environmental changes,etc.From the simulation result,it is observed that the designed system is cost effective and environment friendly,which leads to 6.18%annual cost savings and reduces CO_(2) emissions by 38.3%.Sensitivity results indicate that the system is optimal and adaptable in a certain range of unanticipated variances with respect to best estimated value.Finally,an energy management strategy is developed for the optimal system to ensure reliable power during contingency and disturbances.The green and hybrid power system designed can be adaptable to any critical and large consumers of urban buildings.展开更多
文摘根据T型中点箝位(T-type neutral point clamped,TNPC)型光伏并网逆变器拓扑结构建立端口受控的耗散哈密顿(port controlled Hamiltonian with dissipation,PCHD)数学模型。基于此数学模型,采用互联和阻尼配置无源控制(interconnection and damping assignment passivity-based control,IDA-PBC)方法设计控制器。介绍三电平空间矢量调制算法的原理及实现方法。仿真结果表明,该文设计的基于PCHD模型的TNPC型光伏并网逆变器无源控制器能够使光伏并网逆变器实现网侧单位功率因数、电流低谐波;同时,使并网逆变器具有良好的动态、静态特性。
文摘The objective of this paper is to model a hybrid power system for buildings,which is technically feasible and economically optimal.With a view to promote renewable energy sources,photovoltaics and wind turbines are integrated with the grid connected building.The system is modeled and the optimal system configuration is estimated with the help of hybrid optimization model for electric renewables(HOMER).The logic is illustrated with a case study based on the practical data of a building located in southern India.This building is associated with 3.4 MWh/day priority load(peak load as 422 kW),as well as 3.3 MWh/day deferrable load(peak load as 500 kW).Sensitivity analysis is performed to deal with uncertainties such as the increase in electricity consumption and grid tariff,environmental changes,etc.From the simulation result,it is observed that the designed system is cost effective and environment friendly,which leads to 6.18%annual cost savings and reduces CO_(2) emissions by 38.3%.Sensitivity results indicate that the system is optimal and adaptable in a certain range of unanticipated variances with respect to best estimated value.Finally,an energy management strategy is developed for the optimal system to ensure reliable power during contingency and disturbances.The green and hybrid power system designed can be adaptable to any critical and large consumers of urban buildings.
