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http://dx.doi.org/10.7471/ikeee.2019.23.1.143

New VFT Grid-Connection System Including Reactive Power Compensation  

Oh, Jeong-Sik (Dept. of Electrical and control Engineering, Mokpo National University)
Park, Tae-Sik (Dept. of Electrical and control Engineering, Mokpo National University)
Kim, Sung-Hwan (Dept. of Electrical and control Engineering, Mokpo National University)
Kwak, No-Hong (Dept. of Electrical and control Engineering, Mokpo National University)
Park, Jang-Hyun (Dept. of Electrical and control Engineering, Mokpo National University)
Publication Information
Journal of IKEEE / v.23, no.1, 2019 , pp. 143-150 More about this Journal
Abstract
The back-to-back HVDC asynchronous grid interconnect technology has problems of high harmonic generation, high cost, and low scalability. To solve this problem, research on asynchronous grid interconnect technology using VFT is actively being conducted. However, the reactive power due to the inductance component of the VFT is generated, and the problem of additional installation of the reactive power compensating facility is inevitably generated. Therefore, in this paper, we aim to solve the reactive power compensation problem of existing VFT by designing rectifier AC-DC converter, which is an essential element of the asynchronous grid connection system using VFT, to compensate reactive power as well as active power supply. The performance was verified through simulation.
Keywords
Grid-Connection; VFT; AC-DC Conversion; Reactive Power; WRIM;
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