Open AccessDuplex PD inertial damping control paradigm for active power decoupling of grid-tied virtual synchronous generator
Author(s) -
Sue Wang,
Jing Li,
Saleem Riaz,
Haider Zaman,
Pengfei Hao,
Yun Luo,
Mohammad Alsharef,
Ahmad Alahmadi,
Nasim Ullah
Publication year - 2022
Publication title -
mathematical biosciences and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.451
H-Index - 45
eISSN - 1551-0018
pISSN - 1547-1063
DOI - 10.3934/mbe.2022560
Subject(s) - decoupling (probability) , control theory (sociology) , permanent magnet synchronous generator , inertia , transient (computer programming) , frequency deviation , automatic frequency control , frequency grid , grid , power control , transient response , ac power , power (physics) , small signal model , computer science , engineering , voltage , physics , control (management) , control engineering , mathematics , electrical engineering , telecommunications , geometry , classical mechanics , quantum mechanics , artificial intelligence , operating system
The growth of distributed generation significantly reduces the synchronous generators' overall rotational inertia, causing large frequency deviation and leading to an unstable grid. Adding virtual rotational inertia using virtual synchronous generators (VSG) is a promising technique to stabilize grid frequency. Due to coupled nature of frequency and active output power in a grid-tied virtual synchronous generator (GTVSG), the simultaneous design of transient response and steady state error becomes challenging. This paper presents a duplex PD inertial damping control (DPDIDC) technique to provide active power control decoupling in GTVSG. The power verses frequency characteristics of GTVSG is analyzed emphasizing the inconsistencies between the steady-state error and transient characteristics of active output power. The two PD controllers are placed in series with the generator's inertia forward channel and feedback channel. Finally, the performance superiority of the developed control scheme is validated using a simulation based study.