We focus on PV inverter
R&D.Leadership in production, sales, and also services.Strong supply chain
with an ability of solar PV inverter.Certified by National High Tech Enterprise.
For more information visit us: http://www.senergytec.com/en/pv-inverter.html
PV Inverter prediction
systems are being urbanized that use algebraic methods as well as weather
forecasts plus real time data from a grid of adjacent smaller residential PV
sites to let for the commitment, scheduling as well as dispatching of
conventional generation sources in a more economical method.
Smart PV inverters
Conventionally,
PV inverters were deliberately intended to feed as much active power P (kW) as
was accessible from the solar array at unity power factor into the point of
common coupling (PCC). More lately, utilities as well as independent power
providers have shown wonderful interest in the three phase inverter’s ability
to also absorb as well as offer reactive power Q (kVAR) from and to the grid.
Over
ninety-five percent of the time a PV inverter is running
below its rated output current when converting DC solar power to AC active
power. The idle capacity of the inverter can then be put to exploit to generate
reactive power. The output of a smart PV inverter has both immediate as well as
active AC currents that adjoin geometrically to the apparent power S, which
will be limited by the current rating of the inverter.
The
flow of active power P as well as reactive power Q in the grid can be
considered as being independent from one another and largely requires diverse
control schemes. Active power control is tied to controlling grid incidence,
whereas reactive power control is associated with controlling the grid voltage.
Control of active power (kW) and
frequency
In
a transmission network, it is significant to keep the frequency as stable as probable
because the major generating resources, all of which are synchronous machines,
work at their most competent point at exactly 60Hz. Also, the speed governors
on these machines must function in lock-step to share the generation load
between machines to the particular schedule. For the frequency to remain stable
the generated vigorous power must match the power demand at all times.
