期刊名称：International Journal of Grid and Distributed Computing
印刷版ISSN：2005-4262
出版年度：2016
卷号：9
期号：9
页码：327-336
语种：English
出版社：SERSC
摘要：The uncertainty and fluctuation brought by distributed type of intermittent power
generation in micro grid bring huge challenges to power quality of micro grid in isolat
ing
operation and power control in parallel operation.
N
evertheless energy storage is able to
well solve this problem.
H
ybrid energy storage integrates the respective advantages of
storage battery and
supercapacitor
to have improved the performance of ener
gy storage
system. Service life of storage battery is tightly related to its charging/discharging times
and problem of frequent charging/discharging storage battery still exists in current
hybrid energy storage technology.
I
n this paper, it respectively pu
ts forward control
strategies for storage battery and supercapacitor. As to control strategy for storage
battery
, it uses double
-
layered control strategy, namely, single loop control and power
hysteresis
control, to feedback low
-
frequency fluctuation of po
wer and reduce
charging/discharging frequency of
storage
battery.
A
s to control strategy for
supercapacitor, it uses inner loop current with power to control voltage in outer loop so
as to feedback high
-
frequency fluctuation of power and it is able to well
maintain stability
of DC bus voltage.
S
imulation results suggest the validity of aforesaid control strategies.
关键词：Micro Grid; Hybrid Energy Storage; Supercapacitor; Storage Battery;
Power Feedforward
