The primary challenge in renewable-energy utilization is an energy-storage system involving its power converter.The systems have to promise high efficiency,reliability and durability.Also,all of these can be realized ...The primary challenge in renewable-energy utilization is an energy-storage system involving its power converter.The systems have to promise high efficiency,reliability and durability.Also,all of these can be realized at an economical cost.Buck and boost converters connected in parallel can convert power in both directions.It is the basic non-isolated bidirectional topology commonly used with energy-storage systems.The primary issue with the buck-boost non-isolated bidirectional converter is how to enhance its performance,so the modification involving this topology is still conducted.This paper examines 29 proposed converters from 30 research publications published in the last 10 years,the most recent of which focuses on modified non-isolated bidirectional converters based on the buck-boost topology.These are classified into eight modification schemes,which involve adding new components or circuits to the base topology.Each is evaluated against six parameters:the number of components,control complexity,power-rating applications,soft-switching ability,efficiency outcome and capacity to minimize losses.Moreover,each modified non-isolated bidirectional converter was compared from the renewable-energy-based power-generation-source perspective utilized.Based on these studies,researchers might think of ways to improve the buck-boost converter by changing it to make a new non-isolated bidirectional converter that can be used in systems that need it.展开更多
针对插电式混合动力汽车(plug-in hybrid electric vehicle,PHEV)复合电源系统存在的高频动态特性、计算量大和混杂特性等问题,提出一种双向DC/DC变换器的混杂自动机模型。通过分析PHEV复合电源系统的工作原理,根据拉格朗日力学理论,建...针对插电式混合动力汽车(plug-in hybrid electric vehicle,PHEV)复合电源系统存在的高频动态特性、计算量大和混杂特性等问题,提出一种双向DC/DC变换器的混杂自动机模型。通过分析PHEV复合电源系统的工作原理,根据拉格朗日力学理论,建立双向DC/DC变换器各工作模态的数学模型,再基于混杂自动机理论并结合离散化处理得到PHEV复合电源双向DC/DC变换器混杂自动机模型,并使用仿真实验对其进行验证。仿真结果表明:该模型计算量适中、跟踪精度高,能完整地描述系统的各个工作模态,兼顾了CCM模式和DCM模式,具有实际应用价值。展开更多
基金supported and funded by the Higher Education Leading Applied Research(PTUPT)programme of the Ministry of Education,Culture,Research,and Technology of the Republic of Indonesia under contract number 011/PL.PTUPT/BRIn.LPPM/VI/2022the Indonesia Endowment Funds for Education(LPDP),Ministry of Finance of the Republic of Indonesia[number:20200811214083].
文摘The primary challenge in renewable-energy utilization is an energy-storage system involving its power converter.The systems have to promise high efficiency,reliability and durability.Also,all of these can be realized at an economical cost.Buck and boost converters connected in parallel can convert power in both directions.It is the basic non-isolated bidirectional topology commonly used with energy-storage systems.The primary issue with the buck-boost non-isolated bidirectional converter is how to enhance its performance,so the modification involving this topology is still conducted.This paper examines 29 proposed converters from 30 research publications published in the last 10 years,the most recent of which focuses on modified non-isolated bidirectional converters based on the buck-boost topology.These are classified into eight modification schemes,which involve adding new components or circuits to the base topology.Each is evaluated against six parameters:the number of components,control complexity,power-rating applications,soft-switching ability,efficiency outcome and capacity to minimize losses.Moreover,each modified non-isolated bidirectional converter was compared from the renewable-energy-based power-generation-source perspective utilized.Based on these studies,researchers might think of ways to improve the buck-boost converter by changing it to make a new non-isolated bidirectional converter that can be used in systems that need it.
文摘针对插电式混合动力汽车(plug-in hybrid electric vehicle,PHEV)复合电源系统存在的高频动态特性、计算量大和混杂特性等问题,提出一种双向DC/DC变换器的混杂自动机模型。通过分析PHEV复合电源系统的工作原理,根据拉格朗日力学理论,建立双向DC/DC变换器各工作模态的数学模型,再基于混杂自动机理论并结合离散化处理得到PHEV复合电源双向DC/DC变换器混杂自动机模型,并使用仿真实验对其进行验证。仿真结果表明:该模型计算量适中、跟踪精度高,能完整地描述系统的各个工作模态,兼顾了CCM模式和DCM模式,具有实际应用价值。
