Harmonic Power Flow Calculation of Distribution Network With Electric Vehicle Charge Station
-
摘要: 考虑到实际系统中充电站并网点的运行电压一般不是额定电压水平,且在相同功率下,电压值的变化会引起电流值变化。为使充电站并网谐波潮流计算更精确,本文提出一种适用于充电站的谐波潮流计算模型,该模型为考虑了充电站并网侧电压和自身阻抗影响的充电站等效电流源模型,并根据电动汽车充电站的工作原理,提出了一种含电动汽车充电站模型的谐波潮流计算方法。算例采用IEEE-33节点配电网系统,对两种类型谐波源在多种注入方式下进行谐波潮流计算,对比结果表明,计算中修正谐波电流后,含充电站负荷的节点及相邻节点的电压畸变率增大,充电站并网不仅影响本节点还影响相邻节点的电能质量。Abstract: The operation voltage of the node where EV (Electric Vehicle) charge station connecting to the network is not at rated voltage level under normal circumstances. The variation of voltage will cause the current value changes under the same power situation. In order to make the calculation more precise, a harmonic power flow calculation model applied to EV charge station is proposed in this paper, which is an equivalent current model by considering the voltage influence and self-impedance of connected-grid side of EV charge station. According to the working principle of EV charge station, a harmonic power flow calculation method that contains EV charge station model is put forward. By taking the IEEE-33 node distribution system as an example, the harmonic power flow is calculated under different situations with 2 kinds of harmonic sources. From the result we can see that voltage distortion rate of panel point and adjacent nodes are increased after the modification of harmonic current. The connection of EV charge station to the network influences the power quality of the panel point and adjacent nodes.
-
-
张文亮,武斌,李武峰,等.我国纯电动汽车的发展方向及能源供给模式的探讨[J].电网技术,2009,33(4):15. 滕耘,胡天军,卫振林.电动汽车充电电价定价分析[J].交通运输系统工程与信息,2008,8(3):128130. Liu Ryan,Dow Luther,Liu Edwin. A Survey of PEV Impacts on Electric Utilities[C].Innovative Smart Grid Technologies(ISGT),IEEE PES.Berkeley:IEEE Conference,2011:18. Gomez J,Morcos M M.Impact of EV Battery Chargers on the Power Quality of Distribution Systems[J].IEEE Transactions on Power Delivery,2003,18(3):975981. 黄梅,黄少芳,姜久春.电动汽车充电机(站)接入电力系统的谐波分析[J].北京交通大学学报,2008,32(5):8588. 卢艳霞,张秀敏,蒲孝文.电动汽车充电站谐波分析[J].电力系统及其自动化学报,2006,18(3):5154. 黄梅,黄少芳.电动汽车充电站谐波的工程计算方法[J].电网技术,2008,32(20):2023. 李娜,黄梅.不同类型电动汽车充电机接入后电力系统的谐波分析[J].电网技术,2011,35(1):170174. Paul S Moses,Sara Deilami,Amir S Masoum,et al.Power Quality of Smart Grids with Plug-in Electric Vehicles Considering Battery Charging Profile[C].Innovative Smart Grid Technologies Conference Europe (ISGT Europe),IEEE PES.Perth:IEEE Conference,2010:17. 吴竞昌.供电系统谐波[M].北京:中国电力出版社,1998. 蒋平,施鸣鹤.供电系统谐波潮流的仿真分析[J].电力系统自动化,2000,24(7):5154. Losi A,Russo M.Object-oriented Load Flow for Radial and Weakly Meshed Distribution Networks[J].IEEE Transactions on Power System,2003,18(4):12651274. 张学松,柳焯,于尔铿,等.配电网潮流算法比较研究[J].电网技术,1998,22(4):4549. Sheeraz Kirmani,Majid Jamil,Rizwan M. Optimal Placement of SPV based DG System for Loss Reduction in Radial Distribution Network Using Heuristic Search Strategies[C].Energy,Automation and Signal (ICEAS),International Conference.Delhi:IEEE Conference,2011: 14. 牛利勇.纯电动公交充电系统关键技术研究[D].北京:北京交通大学,2008:2538.
计量
- 文章访问数: 1034
- HTML全文浏览量: 22
- PDF下载量: 492
下载:
