A review of stabilization methods for DCMG with CPL, the role of bandwidth limits and droop control

Protection and Control of Modern Power Systems

Sarah Ansari¹  Jing Zhang¹  Rajat Emanuel Singh² 

[1] Engineering and Information Technology, University of Arkansas, Little Rock, Little Rock, USA;Northwestern College, Orange City, Iowa, USA;

关键词: DC microgrids;    DC distribution generation units;    Stability;    Constant power loads;    Bandwidth;   

DOI  :  10.1186/s41601-021-00222-x

来源: Springer

【 摘 要 】

DC microgrids (DCMGs) integrate and coordinate various DC distribution generation units including various renewable energy sources and battery storage systems, and have been used in satellites, the International Space Station, telecom power stations, computer power supplies, electric aircraft, and electric ships. However, the presence of constant power loads (CPLs) can cause instability in DCMGs. Thus, this paper reviews the stabilization techniques that can resolve instability caused by CPLs, as well as various parameters of CPLs, such as bandwidth, and the frequency of the CPLs that can stabilize the DCMGs. It also discusses recent trends and future work in finding stability limits using the parameters of CPLs. It should be useful for directing research towards appropriate mathematical and experimental approaches for the stability of DCMGs with CPLs.

【 授权许可】

CC BY