DU Yan,YAN Mingming,WANG Xin,et al.Dynamic Power Control Strategy for Interlinking Converter Under Bilateral Inertia Constraints in AC/DC Subgrid[J].Automation of Electric Power Systems,2023,47(4):172-179.
DU Yan,YAN Mingming,WANG Xin,et al.Dynamic Power Control Strategy for Interlinking Converter Under Bilateral Inertia Constraints in AC/DC Subgrid[J].Automation of Electric Power Systems,2023,47(4):172-179. DOI: 10.7500/AEPS20220325007.
Dynamic Power Control Strategy for Interlinking Converter Under Bilateral Inertia Constraints in AC/DC Subgrid
With the extensive application of virtual synchronous generator technology
both AC and DC subgrids of the hybrid microgrid (HMG) have the inertia. When the AC and DC subgrids with different inertia characteristics are interconnected by an interlinking converter (ILC)
the dynamic characteristics of the subgrids are coupled by ILC. Therefore
this paper establishes a small-signal model of HMG with the inertia of both AC and DC subgrids
and analyzes the influence law of bilateral inertia of subgrids on the dynamic performance and stability of HMG. Aiming at the problems of power oscillation and the overshoot of change rate after the interconnection of AC and DC subgrids
a dynamic power control strategy of ILC considering bilateral inertia constraints is proposed. Taking the dynamic performance
system stability and power transmission limit of HMG as constraints
the parameters of the proposed dynamic power controller are designed and optimized. An HMG system built on StarSim semi-physical simulation platform verifies the effectiveness and adaptability of the proposed dynamic power control strategy and parameter design scheme under various operation conditions.
WEI Zhinong , PEI Lei , CHEN Sheng , et al . Review on optimal operation and safety analysis of AC/DC hybrid distribution network with high proportion of renewable energy [J]. Electric Power Automation Equipment , 2021 , 41 ( 9 ): 85 - 94 .
ORDONO A , UNAMUNO E , BARRENA J A , et al . Interlinking converters and their contribution to primary regulation: a review [J]. International Journal of Electrical Power & Energy Systems , 2019 , 111 : 44 - 57 .
ZHU Yongqiang , JIA Lihu , CAI Bingqian , et al . Overview on topologies and basic control strategies for hybrid AC/DC microgrid [J]. High Voltage Engineering , 2016 , 42 ( 9 ): 2756 - 2767 .
LOH P C , LI D , CHAI Y K , et al . Autonomous operation of hybrid microgrid with AC and DC subgrids [J]. IEEE Transactions on Power Electronics , 2013 , 28 ( 5 ): 2214 - 2223 .
LOH P C , LI D , CHAI Y K , et al . Hybrid AC-DC microgrids with energy storages and progressive energy flow tuning [J]. IEEE Transactions on Power Electronics , 2013 , 28 ( 4 ): 1533 - 1543 .
ZHU Yongqiang , ZHANG Quan , LIU Kang , et al . Segmented coordination control strategy for hybrid AC/DC microgrid [J]. Automation of Electric Power Systems , 2020 , 44 ( 6 ): 52 - 58 .
CAO Juerui . Research on control strategy of bidirectional interlinking converter in AC/DC hybrid microgrid [D]. Harbin : Harbin Institute of Technology , 2020 .
QI G X , CHEN A L , CHEN J . Improved control strategy of interlinking converters with synchronous generator characteristic in islanded hybrid AC/DC microgrid [J]. CPSS Transactions on Power Electronics and Applications , 2017 , 2 ( 2 ): 149 - 158 .
LI Feng , QIN Wenping , REN Chunguang , et al . Virtual synchronous motor control strategy for interfacing converter in hybrid AC/DC micro-grid [J]. Proceedings of the CSEE , 2019 , 39 ( 13 ): 3776 - 3788 .
LIU Ziwen . Studies of operation characteristics analysis and control methods of hybrid AC/DC microgrid under complicated operation conditions [D]. Wuhan : Huazhong University of Science and Technology , 2019 .
DING Xiaotong . Research on control strategy of inter-linking converters in AC/DC hybrid microgrid [D]. Hefei : Hefei University of Technology , 2020 .
ZHAO Ensheng , HAN Yang , ZHOU Siyu , et al . Review and prospect of inertia and damping simulation technologies of microgrids [J]. Proceedings of the CSEE , 2022 , 42 ( 4 ): 1413 - 1428 .
RAFIEE A , BATMANI Y , AHMADI F , et al . Robust load-frequency control in islanded microgrids: virtual synchronous generator concept and quantitative feedback theory [J]. IEEE Transactions on Power Systems , 2021 , 36 ( 6 ): 5408 - 5416 .
MENG Jianhui , GUO Yu , WANG Yi , et al . Adaptive virtual DC machine control strategy for dual active bridge DC-DC converter [J]. High Voltage Engineering , 2020 , 46 ( 5 ): 1497 - 1507 .
ZHU Jun , LI Ruisheng , WU Bingxin , et al . Virtual synchronous generator operation of interlinking converter between AC and DC microgrids [J]. Power System Protection and Control , 2017 , 45 ( 11 ): 28 - 34 .
SHI Jingrong , LI Yong , HE Li , et al . A comprehensive inertia control method for improving the dynamic characteristics of hybrid AC-DC microgrid [J]. Transactions of China Electrotechnical Society , 2020 , 35 ( 2 ): 337 - 345 .
LV Z , ZHANG Y , XIA Y , et al . Adjustable inertia implemented by bidirectional power converter in hybrid AC/DC microgrid [J]. IET Generation , Transmission & Distribution, 2020 , 14 ( 7 ): 3594 - 3603 .
MELATH G , RANGARAJAN S , AGARWAL V . A novel control scheme for enhancing the transient performance of an islanded hybrid AC-DC microgrid [J]. IEEE Transactions on Power Electronics , 2019 , 34 ( 10 ): 9644 - 9654 .
LU Xiaojuan , DUAN Jiangtao . A novel control strategy of hybrid micro-grid based on VSG technology [J]. Acta Energiae Solaris Sinica , 2021 , 42 ( 3 ): 243 - 250 .
WU Wenhua , CHEN Yandong , LUO An , et al . A virtual inertia control strategy for bidirectional grid-connected converters in DC micro-grids [J]. Proceedings of the CSEE , 2017 , 37 ( 2 ): 360 - 372 .
LIU Yili , LI Ding , LI Mingxian , et al . Inertia characteristic analysis of RoCoF droop control based direct-driven wind power system [J]. Journal of Power Supply , 2020 , 18 ( 6 ): 94 - 104 .
DU Yan , SU Jianhui , ZHANG Liuchen , et al . A mode adaptive frequency controller for microgrid [J]. Proceedings of the CSEE , 2013 , 33 ( 19 ): 67 - 75 .