当前位置: X-MOL 学术IEEE Trans. Power Syst. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Effect of Grid-Following VSC on Terminal Frequency
IEEE Transactions on Power Systems ( IF 6.5 ) Pub Date : 2023-01-03 , DOI: 10.1109/tpwrs.2022.3233761
Qingyuan Ma 1 , Lei Chen 1 , Luyang Li 1 , Yong Min 1 , Yu Gong 2 , Kai Liang 2
Affiliation  

Grid-following voltage source converter (GFL-VSC) does not establish frequency like synchronous generator (SG), but follows the frequency of the terminal bus using phase-looked loop (PLL). This letter demonstrates that GFL-VSC also affects the terminal frequency, rather than simply follows it, due to the dynamics of the PLL and outer control loops. The relationship between PLL frequency, d-axis current, and terminal frequency is derived. Both the PLL frequency and the d-axis current affect the terminal frequency in the form of their derivatives, which is completely different from conventional SG and the corresponding frequency divider formula (FDF). Time-domain simulation results validate the derived relationship.

中文翻译:

并网VSC对终端频率的影响

电网跟随电压源换流器(GFL-VSC)不像同步发电机(SG)那样建立频率,而是使用锁相环(PLL)跟随终端母线的频率。这封信表明,由于 PLL 和外部控制环路的动态,GFL-VSC 也会影响终端频率,而不是简单地跟随它。推导出PLL频率、d轴电流和端频率之间的关系。PLL频率和d轴电流都以其导数的形式影响终端频率,这与传统的SG和相应的分频器公式(FDF)完全不同。时域仿真结果验证了导出的关系。
更新日期:2023-01-03
down
wechat
bug