Technology

Renowab Energi

Overview of Solar PV

Solar PV converts sunlight (not heat) to generate electricity through a photovoltaic process. A solar plant consists of,

  • Solar Panels – Mounted on the roof into DC power               
  • Mounting Structures – Together with its foundation, securely hold the solar panels during high wind speeds and cyclones
  • Inverter – Converts the generated DC power into AC power.
  • Storage (Off grid) – Batteries helps in grid stability, peak load management, system flexibility & reliability and meet crtical load requirement.
  • Balance of Systems (BoS) – All the other components of the solar plant, such as cables, junction boxes, fuses, earthing & lightning protection, metering, etc.

The lifetime of a solar PV plant is 25 years

Technology- I

We integrate our technologies to attain maximum output and maintain highest standards in,

  • Engineering Design through latest software and validation for
  • Site analysis using GIS (satellite imaging)
  • Existing structure analysis and validation for load
  • Mounting structure design (Fixed / Tracking /Rooftops)
  • Foundation/support structural design
  • Cable routing, earthing and lightning protection system
  • System design/ engineering for minimum power loss

 

Technology- II

Equipment Supply of reputed makes

  • PV Module with RFID tag
  • Inverter from German Technology
  • Mounting structure Hot dip of cold galvanized coat
  • Balance of plant supply
  • Energy meter as per MNRE / State Govt requirements
  • Protection as per IEC and IS standards
  • Civil construction
  • Erection and commissioning through inhouse expert professionals
  • Monitoring and supervising of O&M activity (Manually / Remote)

Our Collaborators

Our Collaborators

We have Collaborated with the following for Equipment Supply:

  • PV Modules – Trina, Vikram, Longi
  • Inverters – SMA, SunGrow, Hitachi, Bonfiglioli
  • Structures – Custom inhouse fabrication
  • Switchgears –ABB, Havells, Schneider
  • Scada Monitoring –LogX, Machineplus
  • Cables-Havells, Polycab
  • Meters-Secure Meters

We undertake supervising of O&M activity (Manually / Remote)

Our Collaborators- INVERTER

  • There are three prime functions involved: 
  • switching, filtering, and control of amplitude and frequency in Solar Inverter.
  • Capacitors – are used to filter ripple contents (undesirable phenomenon due to semi-conductor switching) on dc lines. It is also be used to keep the dc bus voltage stable and minimize losses between the PV array and the inverter.
  • Software and monitoring – the software designed to run on the inverter’s digital signal processor or microcontroller. Data monitoring is important since it lets owners and installers know its status and provides quick alerts if there are any faults.
  • Solid state switches – they are basically a combination of power semiconductors – IGBTs, Metal Oxide Semiconductor Field Effect Transistor (MOSFETs) or both in some cases – toinvert dc to ac power.

Magnetic components – these include the inductor and the transformer to filter the wave shapes and smoothening them and bring ac voltages to the correct levels for grid interconnection. They also provide isolation between the dc circuits and the ac grid.

 

An insulated-gate bipolar transistor (IGBT) is a three-terminal power semiconductor device primarily used as an electronic switch which, as it was developed, came to combine high efficiency and fast switching.

In a solar inverter, the IGBT performs the main role of converting the DC generated by the solar panels into AC required by the various electrical equipment.

Thus, the IGBT can be considered as the core and most important component of a solar inverter.

How does an IGBT convert a direct into an alternating current ?

The IGBT is like the power transistor, except that it is controlled by the voltage applied to its gate rather than the current flowing into its base, as in power transistors. The current flowing in the gate of an IGBT is extremely small because the impedance of the control gate is very high. This device is equivalent to the combination of a metal-oxide semiconductor field effect transistor (MOSFET) and a power transistor. Since the current required to control an IGBT is very small, it can be switched much more quickly than a power transistor.

In inverters, an IGBT uses multiple switches in specific configuration to convert a DC voltage to a square wave ac voltage.

Our Collaborators- INVERTER IGBT

 

An insulated-gate bipolar transistor (IGBT) is a three-terminal power semiconductor device primarily used as an electronic switch which, as it was developed, came to combine high efficiency and fast switching.

In a solar inverter, the IGBT performs the main role of converting the DC generated by the solar panels into AC required by the various electrical equipment.

Thus, the IGBT can be considered as the core and most important component of a solar inverter.

How does an IGBT convert a direct current into an alternating current ?

The IGBT is like the power transistor, except that it is controlled by the voltage applied to its gate rather than the current flowing into its base, as in power transistors. The current flowing in the gate of an IGBT is extremely small because the impedance of the control gate is very high. This device is equivalent to the combination of a metal-oxide semiconductor field effect transistor (MOSFET) and a power transistor. Since the current required to control an IGBT is very small, it can be switched much more quickly than a power transistor.

In inverters, an IGBT uses multiple switches in specific configuration to convert a DC voltage to a square wave ac voltage.

renowab energi

Our Collaborators- DC Cable

                PV Solar cables are designed for connecting photovoltaic power supply systems. They are dedicated to the photovoltaic system direct current (D.C.) side with a nominal D.C. voltage of a 1.5kV. These cables can be used indoor & outdoor for flexible and fixed installations with high mechanical strength in extreme weather conditions. cables are designed to withstand the demanding environmental conditions that arise in any fixed, mobile, roof or architecturally integrated photovoltaic installation.

ELECTRICAL PROPERTIES
  • Rated DC Voltage : 1.5 KV
  • Maximum Permitted DC/AC Voltage : 1.8 KV/1 KV
  • Spark Test (Spark testing is a method of determining the general classification of ferrous materials.): 6000 Vac (8400 Vdc)
  • Voltage Withstand : 6.5 KV AC & 1.5 KV DC.
DESIGN
  • Conductor – Flexible Electrolytic Tinned fine copper strands , acc. To IEC 60228,class 5
  • Outer Sheath & Insulation – Crosslinked Halogen Free & Flame Retardant UV and ozone resistant sheath in Black or Black with Red Strip.