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Solar Plant for 100 kW Installation

Introduction:


The solar plant plays a pivotal role in our daily activities. The degree of development of a country is measured by the amount of utilization of energy by human beings.



Energy demand is increasing day by day due to increase in population, urbanization, and industrialization.

The world's fossil fuel supply will be depleted in a few hundred years. The rate of energy consumption increasing, supply is depleting resulting in inflation and energy shortage.

This is called the energy crisis. Hence alternative or renewable sources of energy have to be developed to meet future energy requirements.

The principle of solar power plants is quite simple. They consist of a field of solar photovoltaic modules connected them in series and parallel and connected to one or more inverters.

Solar energy is directly transformed into electricity and then connected to the Low Voltage distribution grid in the academic area of IIT KGP.

Solar Plant for 100 kW Installation

Technical Specifications of The Plant:

























































Number of Modules400
PV TechnologyPolycrystalline 250Wp
Module ManufacturerPV Power Tech ECO
Series Connected3/3/4
Plant Rated power100kWp
Area648.4m2
Tilt23.4
Tracking SystemWithout Tracking System
Number of Inverters (PCU)2
Inverter ManufacturerKACO POWADOR 60.0 TL3(UPF)
Pin Assignment of the Input1/1/1
Number of MPPTs3

The basic block diagram of the 100 kW solar plant is shown in Fig 1.

This solar plant mainly consists of



  1. 400 Solar Panels

  2. DC String Array and Combiner Box

  3. Two Inverters (PCU)

  4. AC Distribution Box

  5. plant AC Energy Meter

  6. Data Acquisition System


PV Array:

The total solar PV array installed capacity is 100k W. Individual PV module rating is 250 watt. The PV array consists of framed multi-crystalline.

A suitable number of solar PV modules are connected in the series string and a suitable number of series strings are connected in parallel to formulate a series-parallel array.

The maximum DC output voltage of the array is nearly 600 V. Consists of impact-resistant low iron and high transmission toughened glass.

Fig.2: PV Array on the rooftop of academic building (IIT KGP)

For each of the solar panel, the corresponding data available are as below























VOC37 Volt
Is8.55 Amos
VMP30.95Volt
IMp8.08 Amps
Power Thermal-1.036 Watt/C

PCU:


Ther are two PCU use to convey the DC power produced by SPV modules into AC power and adjust the voltage and frequency levels to the local grid connection. Those PCUs are

fig:3 Insite view of PCU

from figure 3 is cleared that there are total MPPTs

Like another article: Nuclear Power plant, steam power plant.

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