Integration of solar PV Plant to utility grod by improving its power quality

1. INTEGRATION OF SOLAR PV
PLANT TO UTILITY GRID BY
IMPROVING ITS POWER QUALITY

2. WHY WE CHOOSE THIS TOPIC
Solar PV is one of the fastest-growing renewable
energy technology.
However, it has few limitations like low generating
voltages, difficulty in tracking MPP, poor power quality.
By employing require devices, it can overcome from
these limitations.

3.  Renewable power injection to existing utility grid is becoming
essential to meet the electricity demand in the future.
 To overcome the limitations of low voltage generation, poor power
quality, for tracking the MPP(Max. power point). Following devices
used-
I. PV array
II. High gain DC-DC boost converter
III. 3-level 3-phase VSC
IV. Filter circuit
V. Three-phase coupling transformer(star grounded and delta)

4. PV
ARRAY
A PV array is a linked assembly of modules. ...
Each photovoltaic (PV) module is made of
multiple interconnected PV cells. The cells
convert solar energy into direct-current electricity.
PV modules are sometimes called solar panels,
although that term better applies to solar-thermal
water or air heating panels.

5. High Gain DC-DC BOOST CONVERTER
A boost converter (step-up converter) is a dc to dc
boost converter that steps up voltage (while
stepping down current) from its input (supply) to its
output (load). DC–DC boost converters are utilized
to match low voltages of the PV system at the
common dc-link bus terminals. The drawbacks
with the conventional dc–dc converters are sudden
rise in input current, high power loss during
switching, and maximum diode reverse current [6].
Hence, dc micro grid associated with the
conventional converters suffers from more losses,
high strain, and less efficiency.

6. Three-level Three-phase voltage source conver
The main advantage of VSC power
transmission is the high controllability, the
ability to control independently active and
reactive power at each terminal and the
possibility for linking with dead networks. A
voltage source converter or VSC is a device
that converts unidirectional voltage waveform
into a bidirectional voltage waveform, .
And by using this 3 level VSC we can get
three levels of voltages with improved
harmonic level and controlled response.

7. LC FILTER
LC filters refer to circuits consisting of a
combination of inductors (L) and capacitors (C)
to cut or pass specific frequency bands of an
electric signal.
Capacitors block DC currents but pass AC more
easily at higher frequencies. Conversely,
inductors pass DC currents as they are, but pass
AC less easily at higher frequencies.
In other words, capacitors and inductors are
passive components with completely opposite
properties. By combining these components with
opposite properties, noise can be cut and
specific signals can be identified.

9. •The massive penetration of renewable energy sources (RES) can reduce the use of
fossil-fuel as well as protect the environment from greenhouse gas emission.
• These factors are the driving force for the researchers to orient their research work
toward integration of RES to the utility grid along with their operation and control.
•Integration of RES to the utility grid is very much essential for the present power
scenario to reduce greenhouse gas effect.
•Therefore, an accurate and faster controller is required for the operation of grid-
connected converters.
•Also, a filter circuit is required for removing the harmonics generated by the power
electronic components.
•Hence, the PV power conversion requires better power quality by regulating the
voltage and frequency deviations

10. MATLAB

11. • Improved Power Quality in a Solar PV Plant Integrated Utility Grid by Employing a
Novel Adaptive Current Regulator V. Narendra Kumar, Narendra Babu P , R.
Kiranmayi, Pierluigi Siano , Senior Member, IEEE, and Gayadhar Panda, Senior
Member, IEEE.
•Integration of Solar PV Systems to the Grid: Issues and Challenges Harish Kumar
Khyani, Associate Professor Department of Electrical Engineering, Jodhpur Institute of
Engineering & Technology, Jodhpur, Rajasthan, India harish.khyani@jietjodhpur.com
Dr. Jayashri Vajpai, Associate Professor Electrical Engineering Department, Faculty of
Engineering, J.N.V. University, Jodhpur, Rajasthan, India .
•Modeling and Power Quality Analysis of Integrated Renewable Energy System Rinchin
W. Mosobi Toko Chichi Sarsing Gao Department of Electrical Engineering, North
Eastern Regional Institute of Science and Technology, Nirjuli, Arunachal Pradesh INDIA
791 109.

12. • A new high gain DC-DC boost converter with continuous input and output currents by
Mohammad Eydi, Seyed Hossein Hosseini, Reza Ghazi.
•Harjai, Arjav, Abhishek Bhardwaj, and Mrutyunjaya Sandhibigraha. Study of maximum power
point tracking (MPPT) techniques in a solar photovoltaic array.
•Liu, Yushuang, et al. "Interaction of voltage and current control loop in three-phase voltage
source converter.

13. BY
RUCHI
GAUTAM