Power   grid frequency detection accuracy

<0.003Hz or   <0.002Hz

0.001Hz

Primary   frequency modulation

start   time

Wind   power：≤2s，Photovoltaic：≤1s

Wind power：≤2s，Photovoltaic：≤1s

Primary   frequency modulation response time

Wind power：≤9s，Photovoltaic：≤5s

Wind power：≤5s，Photovoltaic：≤4s

Primary   frequency modulation regulation time

Wind   power：≤15s，Photovoltaic：≤15s

Wind   power：≤5s，Photovoltaic：≤4s

Frequnency change rate calculation time

100ms≤t≤200ms

Satisfy

Frequnency   change rate calculation accuracy

≤0.05Hz/s

≤0.03Hz/s

Station   inertia response time

≤1s

≤1s

Station   active power control accuracy

≤1%Pn

≤1%Pn

Station   voltage control accuracy

≤0.5%Un

≤0.3%Un