photovoltaic monitoring system with transformerless grid connectivity

1. PHOTOVOLTAIC MONITORING
SYSTEM WITH
TRANSFORMERLESS GRID
CONNECTIVITY
Presented by: Ankit Kumar Prajapati
VISHWAVIDYALAYA ENGINEERING COLLEGE
(A COCNSTITUENT COLLEGE OF C.S.V.T.U, BHILAI)
Guided by: Pulkit Tiwari(Assistant Profesor)

2.  Amongst the renewable supply of energy, the
photovoltaic power systems are gaining
popularity, with significant demand within the
power sector and to scale back environmental
pollution around caused because of excessive
use of a non-renewable supply of energy

3.  Amongst the renewable source of energy,the photovoltaic power
systems are gaining popularity, with heavy demand in energy sector
and to reduce environmental pollution around caused due to excess
use non-renewable source of energy. Transformerless inverter
topologies are introduced for small scale grid connected PV system
due to their high efficiency, lower cost, and high power density.
However, leakage current is the main concern in these inverters
which needs to be addressed carefully.
 Data logging are an important aspect in a modern day
measurement and instrumentation system

5.  Utility-scale
 Terrace, mobile, and portable
 Building-integrated

6.  Wafer-Based crystalline Silicon (c-Si)
technology: we can use two type of silicon one
single translucent silicon other is multi-glass
translucent. The proficiency of glasslike silicon
modules goes from 19% to 24%
 Thin-Film PV technologies: Slight Film PV
cells are made of a flimsy layer of
semiconductor. They have lower creation
expenses and lower cell efficiencies than wafer-
based PV cells. They for the most part
incorporate three fundamental families

7. I = Iph – Is (e(qV/Akt)-
ID = Is (e(qV/Akt)-
where Iph is the photocurrent (depends on the solar irradiance and cell
temperature),
ID denote diode current, Is denote diode saturation current,
q denote electron charge, k denote Boltzmann constant,
T denote PV cell temperature(Kelvin), and A denote diode ideality constant

8.  DC flows might be delivered in the infused AC
current
 Transformers get warmed
 The size of the transformer increments as the
voltage increments

9. Block diagram of PV grid connected inverter

14.  The intention of this research work is to
improve the efficiency and enhance the
performance of single stage transformer less
PV grid connected system