Zobrazeno 1 - 10
of 2 784
pro vyhledávání: '"Active damping"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-17 (2024)
Abstract LCL filters are extensively utilized in Grid-connected inverters due to their exceptional capability in suppressing high-frequency harmonics. The active damping method is commonly employed to mitigate the resonance peak of the LCL filter. Ho
Externí odkaz:
https://doaj.org/article/399d011c60bb4b91ba3822f6eed76f9d
Autor:
Wenju Sang, Wenyong Guo, Gang Xu, Tongzhen Wei, Changli Shi, Zongjie Liu, Han Xue, Zhenning He, Junzhi Li, Jiazhen Shen, Ruiqi Min, Shaobo Song, Xiaoxu Li, Yun Hong
Publikováno v:
Frontiers in Energy Research, Vol 12 (2024)
LCL-type grid-connected inverters have been widely used in renewable power generation due to their size and cost advantages. However, the LCL filter has a problem of insufficient damping, which may lead to power system instability. Two common methods
Externí odkaz:
https://doaj.org/article/b2e628a49945492a9f600f30cd8a787f
Autor:
Shanwen Ke, Bo Liang
Publikováno v:
Sensors, Vol 24, Iss 18, p 6029 (2024)
The negative high-pass filter feedback of the grid current (NFGCF) can offer active damping for the LCL-type grid-connected inverter. Due to the control delay in digital control systems, this damping can cause the system to exhibit non-minimum phase
Externí odkaz:
https://doaj.org/article/3a943013bd284c0c91244aa51fe89054
Publikováno v:
发电技术, Vol 45, Iss 1, Pp 170-179 (2024)
The LCL-type grid-connected inverter (GCI) is a critical device for realizing energy transmission between distributed generation and the power grid. The current control of the GCI typically requires multiple sensors to enable active damping and grid-
Externí odkaz:
https://doaj.org/article/8cf8a39a19844dbfb322f9851020dec1
Publikováno v:
IEEE Access, Vol 12, Pp 161270-161282 (2024)
LC-equipped high-speed permanent magnet synchronous motors (LC-HSPMSM) effectively mitigates switching harmonics, but its stability region is narrowed by resonance phenomena. While active damping (AD) methods can extend this stability region, they of
Externí odkaz:
https://doaj.org/article/55810807401c4aefa71a5fe634ea73b1
Publikováno v:
IEEE Access, Vol 12, Pp 109793-109805 (2024)
High-speed permanent magnet synchronous motors face significant stator current harmonics issues due to small stator inductance and low carrier ratio. LCL topology family of filters are unable to ensure optimal filtering performance across the full fr
Externí odkaz:
https://doaj.org/article/cb0eec33a9084f9e8fe5ecfb5e8d0966
Publikováno v:
IEEE Open Journal of the Industrial Electronics Society, Vol 5, Pp 143-154 (2024)
In this article, a small-signal model of grid-forming (GFM) converters that takes into account the presence of ac shunt capacitors in the power grid is presented. It is revealed that the inclusion of shunt ac capacitors in GFM converters leads to the
Externí odkaz:
https://doaj.org/article/d365a022c0d3444496645fd049b72154
Autor:
Majid Hosseinpour, Soghra Ebrahimzadeh
Publikováno v:
مجله مدل سازی در مهندسی, Vol 21, Iss 74, Pp 1-19 (2023)
In the grid-tied PV inverter systems, the design of a proper power conditioning system is an important issue to ensure high-quality power injection to the grid. In the low-voltage distribution network, the grid impedance variations change the resonan
Externí odkaz:
https://doaj.org/article/43160184346e4917bf7c087bfa09270d
Publikováno v:
Shanghai Jiaotong Daxue xuebao, Vol 57, Iss 9, Pp 1105-1113 (2023)
The passivity-based control (PBC) based on energy function has been studied for grid-connected converters to achieve a better performance. However, traditional PBC method relies on the accurate mathematical model of grid-connected inverter. In previo
Externí odkaz:
https://doaj.org/article/05db25f0883747018b5ec490d699a30c
Publikováno v:
Energy Reports, Vol 9, Iss , Pp 422-431 (2023)
The low frequency oscillations that are raised by the interactions between the voltage source converter (VSC) and the weak grid, are becoming a critical threat to power system stability. Identifying the proper parameters for VSC is essential for prev
Externí odkaz:
https://doaj.org/article/6a48b091723d4175a7001bc8739ba96e