| 引用本文: | 尹晨旭,刘 邦,熊 璇,皮一晨,孙建军,查晓明.基于并网逆变器混合实时仿真系统的PWM脉冲宽度误差分析与建模[J].电力自动化设备,2016,36(2): |
| YIN Chenxu,LIU Bang,XIONG Xuan,PI Yichen,SUN Jianjun,ZHA Xiaoming.Analysis of PWM pulse width error and modeling of grid-connected inverter in HIL simulation system[J].Electric Power Automation Equipment,2016,36(2): |
|
| 摘要: |
| 由于混合实时仿真系统中数字仿真器采样环节产生的PWM脉冲宽度误差造成数字仿真器中的逆变器模型开关延时动作，对混合实时仿真系统的稳定性与仿真精度具有一定影响，基于此，以并网逆变器闭环控制系统为例，引入相平面法建立更加逼近实际的混合仿真模型。仿真结果验证了所提建模方法和稳定性分析方法的正确性和有效性。 |
| 关键词: 混合仿真技术 PWM 脉冲宽度误差 非线性环节 相平面法 逆变器 建模 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金资助项目（51277137） |
|
| Analysis of PWM pulse width error and modeling of grid-connected inverter in HIL simulation system |
|
YIN Chenxu1, LIU Bang1, XIONG Xuan2, PI Yichen1, SUN Jianjun1, ZHA Xiaoming1
|
|
1.School of Electrical Engineering，Wuhan University，Wuhan 430072，China;2.Maintenance Company of State Grid Hunan Electric Power Company，Changsha 410015，China
|
| Abstract: |
| The PWM pulse width error induced by the sampling section of digital simulator in HIL（Hardware-In-the-Loop） simulation system may delay the switching operation of the inverter model in the digital simulator，which impacts on the stability and accuracy of HIL system. With the close-loop control system of grid-connected inverter as an example，the phase plane method is introduced to build the hybrid simulation model closer to actual system for the HIL simulation system. The correctness and effectiveness of the proposed modeling method and stability analysis method are verified by the simulative results. |
| Key words: hardware-in-the-loop pulse width modulation pulse width error nonlinear element phase plane method electric inverters model buildings |
