Power Conditioning Unit
(PCU) is a very vital piece of equipment in any solar PV system and is also called solar power conditioning unit. The main
components of any solar PV system are PV panels, charge controller, battery
bank, inverters, cables, switches and the protection.
"Power Conditioning Unit (PCU) is a combined unit consisting of a solar charge controller, an inverter and a grid charger integrated in a single unit."
Role of Power Conditioning Unit (PCU)
Power Conditioning Unit (PCU) is usually a DSP based PWM technology using
IGBT and MOSFET. It facilitates the charging of battery bank through either
solar PV panels or the grid/DG system. All the solar PCU has the ability to
continuously monitor the state of battery, solar power output and the load. They
not only monitors the state of affairs but even displays vital parameters such
as PV voltage and current, load percentage, overload percentage, charging
current etc.
The solar energy is intermittent
in nature and therefore a balance has to be made between the solar generation
and the demand. When excess energy is generated the extra kWh is to be either
fed into the grid, which is possible only in case of grid tied system, or to be
stored into the battery bank. Due to over usage of power, if the battery
voltage goes below a pre-defined level, the PCU will automatically transfer the
load to the utility grid and simultaneously charges the batteries through the grid supply.
Once the batteries attain a given voltage, the PCU cuts off the grid power to the system and returns back the load on to the solar system. The rest of the battery charging is now done by the solar PV system. In this way the PCU gives priority to the solar power over the grid, and uses the grid power only when the solar power and the battery power of required level is not available.
Once the batteries attain a given voltage, the PCU cuts off the grid power to the system and returns back the load on to the solar system. The rest of the battery charging is now done by the solar PV system. In this way the PCU gives priority to the solar power over the grid, and uses the grid power only when the solar power and the battery power of required level is not available.
Significant advantages of PCU
The significant advantages of PCU are pure sine wave output with low Total Harmonic
Distortion (a measure of power quality), higher efficiency, data logging
monitoring etc. The commercially available PCU have efficiency more than 85%
and nearly 5% Total Harmonic Distortion (THD) for linear loads. These units
come with the deep discharge protection and thus ensure the health of
batteries. PCUs have nearly 300% overload facility for a few milliseconds which
helps during the starting of heavy loads. Thus these units have the inbuilt overload and short-circuit protection and therefore no need to worry about overloads and short circuits. Remote monitoring of the unit can be
done with the help of RS232, Ethernet, GSM and GPRS.
Very good post to read about solar PCU system. Solar PCU is an integrated unit consists of a grid charger, inverter, MPPT solar charger. It continuously monitors battery and solar voltage as well as grid and output voltage with their currents. To Learn more click here - Solar PCU manufacturer in India.
ReplyDeleteAll over Virginia, House holders are attempting to safeguard the state's normal magnificence by changing to solar power assets. Nu Solar power is the one and only best company in USA which provides Virginia solar program to the people of Virginia, So they live happy green life.
ReplyDelete"50kW Solar System | 50kW Solar Panels Systems Quote | Smart House Solar
ReplyDelete50kW Solar System, 50kW Solar Panels Systems at Smart Solar House is one of the best Solar PV Module manufacturers in Queensland, Australia. We also specialize in providing Rooftop solar power plants."
solar panel manufacturing company in india.
ReplyDelete