@article{MAKHILLJEAS2020151019394,
    title = {Analysis of Frequency and Voltage Control in Isolated Micro Grids},
    journal = {Journal of Engineering and Applied Sciences},
    volume = {15},
    number = {10},
    pages = {2212-2217},
    year = {2020},
    issn = {1816-949x},
    doi = {jeasci.2020.2212.2217},
    url = {https://makhillpublications.co/view-article.php?issn=1816-949x&doi=jeasci.2020.2212.2217},
    author = {Safaa and},
    keywords = {acceptable power,Distribution network,PV penetration,scenarious,operation},
    abstract = {Renewable energy supply is environment
friendly and promises a sustainable energy for future
generation. However, connecting renewable energy
resources to exiting power grid may cause technical issues
which needs to be solved. The architecture of existing
electricity power networks is based on large centralized
power generations whereas renewable energy resources
are relatively small, distributed and connected to the
medium or lower voltage sides. Most renewable energy
resources, e.g., PV systems, employ power electronic
converters for power conditioning and interface with the
grid. Further, renewable energy generation (e.g., from
solar and wind) is intermittent in nature and hard to
predict. These issues create a challenge for the integration
of renewable energy sources into the grid as they can
make power system operation and control more
complicated and maintaining high quality of supply more
difficult. Therefore, new power dispatching strategies and
inverter control systems are essential in renewable power
energy applications. A distribution network model has
been developed in MATLAB/Simulink and implemented
to evaluate the voltage profiles and power flow for
different levels of PV systems. This will help in
evaluating the impact of high penetration levels of
small-scale grid connected PV systems on the power
quality for a residential distributed network in the UK.
Different penetration scenarious are variable load
conditions are considered. The computer model developed
has been validated by comparison with a reliable model
that was developed using ERACS Software package. The
result obtained confirmed that maintaining a stable
operation and acceptable power quality in distribution
networks are possible with a wide range of PV penetration
levels.}
    }