问题描述：
英语翻译
The interest in the renewable energy sources to
relieve the problems of greenhouse emissions has been
promoted.Photovoltaic is one of the important renewable
energy sources.The grid-connected photovoltaic generation
system is the most important among the photovoltaic
applications.High efficiency power converter,maximum
power point tracking (MPPT) and islanding detection are
the key technologies of the power converter interface for
the grid-connected photovoltaic generation system.A novel
grid-connect photovoltaic generation system with a new
power converter control strategy,novel MPPT and
islanding detection methods are proposed in this paper.A 5
kW prototype is developed and tested to verify the
performance of the proposed grid-connected photovoltaic
generation system.The experimental results show that the
maximum power efficiency is 96.1 %,the MPPT can
effectively track the change of the generated solar power
and the islanding detection can meet the standards UL1741.
The interest in the renewable energy sources to
relieve the problems of greenhouse emissions has been
promoted.Photovoltaic is one of the important renewable
energy sources.The grid-connected photovoltaic generation
system is the most important among the photovoltaic
applications.High efficiency power converter,maximum
power point tracking (MPPT) and islanding detection are
the key technologies of the power converter interface for
the grid-connected photovoltaic generation system.A novel
grid-connect photovoltaic generation system with a new
power converter control strategy,novel MPPT and
islanding detection methods are proposed in this paper.A 5
kW prototype is developed and tested to verify the
performance of the proposed grid-connected photovoltaic
generation system.The experimental results show that the
maximum power efficiency is 96.1 %,the MPPT can
effectively track the change of the generated solar power
and the islanding detection can meet the standards UL1741.
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