| 引用本文: | 张国荣,徐晨林,蔡智斌,等.基于谐波状态空间的变换器建模方法[J].电力系统保护与控制,2021,49(11):141-147.[点击复制] |
| ZHANG Guorong,XU Chenlin,CAI Zhibin,et al.A modeling method for a converter based on harmonic state space[J].Power System Protection and Control,2021,49(11):141-147[点击复制] |
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| 摘要: |
| 谐波状态空间(HSS)建模因其强大的谐波分析能力越来越受到关注，但由于其复杂的建模过程及庞大的模型尺寸限制了其在电力电子系统中的应用。以基于正弦脉宽调制的三相电压源型变换器为例说明了一种便于使用的方法来获得电力系统开环大信号HSS模型。基于三相平衡关系提出了在保持与原模型同样的结构和变量、不影响HSS建模精度的条件下减小模型尺寸的HSS降阶模型。通过在Simulink中搭建变换器仿真，并与HSS模型计算结果对比，验证所提模型的有效性。 |
| 关键词: 谐波状态空间 变换器 建模 开关函数 |
| DOI：DOI: 10.19783/j.cnki.pspc.200958 |
| 投稿时间：2020-10-08修订日期：2021-02-16 |
| 基金项目:国家重点研发计划项目资助(2017YFB0903100)；国家电网公司科技项目资助(521104170043) |
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| A modeling method for a converter based on harmonic state space |
| ZHANG Guorong,XU Chenlin,CAI Zhibin,GAO Kai,TANG Bin,WANG Taiwen |
| (School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, China) |
| Abstract: |
| Harmonic State-Space (HSS) modeling, because of its considerable ability in undertaking harmonic analysis, is gaining increasing attention, but the complex modeling process and the large size of model limits its application in power electronic systems. This paper illustrates a convenient method to obtain the open-loop large signal HSS model of a power system by taking the three-phase voltage source converter with SPWM as an example. An HSS reduced order model with the same structure and variables as the original model is proposed based on the three-phase equilibrium relationship. By constructing a converter simulation in Simulink, the effectiveness of the proposed model is verified by comparing with the calculated results of the HSS model.
This work is supported by the National Key Research and Development Program of China (No. 2017YEB0903100) and the Science and Technology Project of State Grid Corporation of China (No. 521104170043). |
| Key words: harmonic state space converter modeling switching function |
