| 引用本文: | 闫凯,张保会,瞿继平,等.光伏发电系统暂态建模与等值[J].电力系统保护与控制,2015,43(1):1-8. |
| YAN Kai,ZHANG Baohui,QU Jiping,et al.Photovoltaic power system transient modeling and equivalents[J].Power System Protection and Control,2015,43(1):1-8 |
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| 摘要: |
| 随着光伏并网电站的数量增多、容量增大，其对电网的保护与控制的影响不可忽略。建立光伏发电站的电磁暂态仿真和等值计算模型是研究其并网特性及对继电保护影响的基础。介绍了光伏电站接入电网的常见形式，建立了一种通过单级式逆变器并网的光伏发电单元模型，并利用在PSCAD/EMTDC上搭建的光伏发电系统电磁暂态仿真模型验证了其在稳态和暂态条件下的有效性。在此基础上，给出了一种由光伏发电单元组成的光伏电站的等值计算模型，并仿真验证了其有效性。 |
| 关键词: 光伏发电单元 电磁暂态建模 等值计算 PSCAD/EMTDC 仿真验证 |
| DOI：10.7667/j.issn.1674-3415.2015.01.001 |
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| 基金项目: |
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| Photovoltaic power system transient modeling and equivalents |
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YAN Kai1, ZHANG Baohui1, QU Jiping2, WU Xingquan2
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1.School of Electrical Engineeing, Xi’an Jiaotong University, Xi’an 710049, China;2.Gansu Electric Power
Design Institute, Lanzhou 730050, China
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| Abstract: |
| With the increasing of number and capacity of photovoltaic power stations connected to grid, its impact on the relay protection and control of the power grid can’t be ignored. Building the photovoltaic power stations’ electromagnetic transient simulation and equivalent calculation model is the basis of the grid-connected characteristics and the influence on relay protection. This paper introduces the common form of photovoltaic power station connected to grid, establishes a photovoltaic power generation unit model based on single-stage inverters, then builds a photovoltaic power generation system electromagnetic transient simulation model on PSCAD / EMTDC to verify its validity in steady and transient conditions. On this basis, the equivalent calculation model of the photovoltaic power plant consisting of photovoltaic power generation unit is given, and its validity is verified by the simulation. |
| Key words: photovoltaic power generation unit electromagnetic transient modeling equivalent calculation PSCAD/EMTDC simulation verification |
