WASET
    Zhou Yingkun and  Xu Guorui and  Wei Siming and  Huang Yongzhang ,  Techno-Economic Analysis of Motor-Generator Pair System and Virtual Synchronous Generator for Providing Inertia of Power System.   journal   = {International Journal of Energy and Power Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2017, vol. 126(6). 665 - 669
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10007227.