Transcript Slide 1

Hybrid Solar Project
Gujarat Institute of Solar Energy (GISE) run by GIM Education Foundation,
which is affiliated to SDIC, Ministry of Labour & Employment, Government
of India and providing technical Vocational training Programs on Solar
Power Technologies and is established to support organizations and
individuals who are looking for self-employment and want to make a career
in solar energy field. The main objective of the institute is to produce skilled
manpower for Solar Energy Sector in India. Gujarat Institute of Solar
Energy has already created necessary training infrastructure.
Gujarat Institute of Solar Energy (GISE) is an ISO 9001:2008 certified
educational institute.
The Beauty of Collaboration Between Institutions Is The
Combine Strength With Wisdom… !
Gujarat Power Engineering &
Research Institute, Mehsana
Pandit Deendayal Petroleum
University, Gandhinagar
Gujarat Power Corporation
Limited, Gandhinagar
The Scopes of The MoUs Are Resource Sharing And
Exchange Programs In Context of Faculty, Vocational
Training, Workshop, Laboratories, Etc.
GISE Students
Equipment Facilities
Project By
Mr. JAY THAKAR
(Project Head)
Engineering participants of GISE
MANIPRASAD RATNAPURAM
VIPUL PAREWA
SANYAM INDURKHYA
RIDDHI THAKAR
SURYA PRAKASH PAREEK
ISHAN VAIDYA
HARSHIL PATEL
ABHINANDAN TRIPATHI
Guidance By
Mr. SOHEL PATEL
Mr. JWALANT A. MEHTA
Hybrid Solar Project
 INTRODUCTION
 OBJECTIVE
 THINK TANK SLD
 COMPONENTS
 SYSTEM WORKING PLANS
Introduction
In solar power plant, the normal efficiency is up to 10-15%. The efficiency of solar
power plant changes due to the change in insolation. So, the output of the plant also
varies. The maximum power is delivered only in the peak hours of the insolation i.e.
from 12 p.m to 3 p.m.
This will result in moderate unit generation per day which directly impacts on the
output of the plant. And during sudden loading i.e. the load on the plant is more than
the capacity of the plant. Therefore the plant cannot reach or meet the required
demand due to high demand from load side, high amount of current drawn from the
source.
Introduction
A synchronous motor is installed in the system to maintain the consistency in the
power supply to give out required power according to the demand. This project will
give out detailed description of soft drive & the synchronous motor application as
well as their performance and plant output before & after installation.
Objective
To Get Continuous Electricity Output Through Solar Photovoltaic Plant
To Maintain Grid Synchronism & Increasing Reach
To Achieve Fastest Payback Period
To Get More No. Of Units In A Day, Ultimately Which Will Convert Into More
Income
Our
Think-tank Proposed Single Line Diagram
Of
Solar Hybrid Photo Voltaic Plant
1 MW
SOLAR PV
PLANT
DC
DISTRIBUTION
BOX
ACB
ACB
BATTERY
BANK
SOFT
DRIVE
INVERTER
ACB
CHARGE
CONTROLLER
600 KW
ACB
200 KW
MECHANICAL
COUPLING
ALTERNATOR G
500 KW
500 KW
500 KW
M
M
SYNCHRONOUS
MOTOR
200 KW
C
VCB
VCB
VCB
11 KV TO
YARD
11 KV TO
YARD
11 KV
TO
YARD
Operation of the Plant
SOLAR PLANT : During day time, based on insolation the generated power is collected
by the DC distribution box & fed to the inverter which converts the power from DC to AC.
VFD : A VFD is installed at the output side of the inverter. It controls as well as monitors
the voltage & frequency levels of the synchronous motors.
SYNCHRONOUS MOTORS : Two synchronous motors are installed parallel in the
plant which makes them to operate at same voltage levels. Squirrel cage is attached to
maintain same direction of rotation. One motor will be loaded by a generator & the other
one will be kept at no load, which in turn makes it to generate as much power as the
motor on load consumes. Half of this power will be fed to the battery & remaining half
will be supplied to the grid.
ALTERNATOR : An alternator is connected to the synchronous motor 1. The rating of
the motor is 500 kw. By considering losses, we have the output of 400 kw which is
directly fed to the grid.
BATTERY BANK : The battery bank is of 600 kw. The battery bank is a back up power
to the hybrid solar plant. During the day hours the battery bank is charged through the
synchronous motor. The synchronous motor which is on no load feeds 50% of power to
the battery which is controlled by automation. This power is used to run the plant during
night hours.
CHARGE CONTROLLER : The charge controller is the controlling device at the
battery bank to maintain moderate operation & balanced voltage & power levels during
faulty condition.
How Our Proposed System
Works ?
Case – 1 ( Day Cycle )
The solar plant will generate electricity during the day time & it is fed to run the
synchronous motors via the variable frequency drive, the variable frequency
drive will control the speed of the synchronous motor by varying the frequency
& voltage levels as well as maintains power quality. The unloaded synchronous
motor caters its 50% power to the battery bank via charge controller & 50% to
yard. Whereas the loaded motor will directly feed the power to the grid by
means of an alternator. Automation is provided to maintain unidirectional
operation of the motors. The VFD will monitor the voltage, frequency & quality
of power at load.
1 MW
SOLAR PV
PLANT
DC
DISTRIBUTION
BOX
ACB
ACB
BATTERY
BANK
SOFT
DRIVE
INVERTER
ACB
CHARGE
CONTROLLER
600 KW
ACB
200 KW
MECHANICAL
COUPLING
ALTERNATOR G
500 KW
500 KW
500 KW
M
M
SYNCHRONOUS
MOTOR
C
VCB
11 KV TO
YARD
200 KW
VCB
VCB
11 KV TO
YARD
11 KV
TO
YARD
Case – 2 ( Day Cycle )
During the night hours, the supply changes from solar panels to battery
bank by means of automation. Since the battery bank is charged at day
time, this charged power of battery bank is used during night hours to
maintain the continuity of power generation.
ACB
BATTERY
BANK
SOFT
DRIVE
INVERTER
ACB
CHARGE
CONTROLLER
600 KW
ACB
200 KW
MECHANICAL
COUPLING
ALTERNATOR G
500 KW
500 KW
500 KW
M
M
SYNCHRONOUS
MOTOR
200 KW
C
VCB
VCB
VCB
11 KV TO
YARD
11 KV TO
YARD
11 KV
TO
YARD
Calculation
CASE 1 : NORMAL CASE
Consider a 1MW solar plant.
for average peak sun hours taking reference
So, considering average peak sun hours at any particular location is
5 hours
Duration of energy production in day time : 5 hours
Therefore the generation = 1000 kw/hr, Which is 1000 units/hr
Therefore for 5 hours, it will be 5000 units.
That will make 5000 units a day.
That will make 5000 units a day.
CASE 2 : DURING DAY TIME
After installing synchronous motors & alternator along with soft drive in plant & a battery bank.
Let us take :
1) two synchronous motors of 500 kw
2) alternator of 500 kw
3) battery bank of 600 kw
When two synchronous motors are started by a soft drive; they will run at synchronous
speed on no load.
Let motor 1 is loaded with alternator & motor 2 is kept on no load.
Consequently the amount of power consumed by generator will be the same amount of
power generated by the motor which is on no load.
Now, taking losses into account for the alternator;
I/P of the alternator = 500 kwh
O/P of the alternator = 400 kwh
The synchronous motor which is on no load generates 400 kwh power.
Out of this 400 kwh; 200 kwh is fed to the grid & 200 kwh is supplied to the 600 kw battery
bank.
Eventually, during day time,
Power generated by solar panels = 500 units/hr
Power generated by synchronous motor which is on no load = 400 units/hr
Power generated by alternator = 400 units/hr
Therefore, total power generated = 1300 units/hr
So, aggregating for 10 hours = 13000 units
The plant generates 13000 units during DAY hours.
CASE 3 : DURING NIGHT TIME
The power generated by solar panels during night hours is nearly zero.
Therefore, the synchronous motors will run by 600 kw from the battery bank.
As the synchronous motor gets loaded with the alternator of 500 kw; energy generated by
synchronous motor operating at no load will be 400 kwh.
Supply from battery bank = 600kw
Alternator O/P = 400 units/hr
Synchronous motor O/P = 400 units/hr
Total power generated = 800 units/hr
For 14 hours of night;
Total power generated = 14 * 800
= 11200 units
The plant generates 11200 units during night hours.
THEREFORE TOTAL ENERGY GENERATED IN 24 HOURS
= Power generated during day time (10 hours)
+ Power generated during night time (14 hours)
= 13000 + 11200
= 24200 units
For 30 days; total power generation = 726000 units
For 300 days; total power generation = 7260000 units
Total power generated in 24 hours is 24200 units.
Conclusion
This is a kind of concept which helps us to achieve the productivity by using
hybrid technology. Application engineering is the main cause to make us able to
achieve Excellency in techno-commercial achievement. In brief we like to state
that it is very good usage of solar concept with tesla-nikola coil. The kind of
generation will be round the clock for 24 hours. Kind of overloading spikes &
dips at both the ends can be taken care . Even though weak sun rays, tracker
positioning time, and kind of sudden load in peak time will be Cater . Smooth
quality supply is achieved. The return over investment will be 36 months to 48
months. We can achieve our common goal .
“IT IS NOT IDLE ONLY WHICH IS NOT IN USE! THE THINGS CAN BE
CONSIDERED IDLE WHICH CAN BE BETTER UTILIZED!!”
Bibliography
System Inc USA ( Web Site )
Re Generation & Frequency Drive From HITACHI JAPAN
Adults Uk Guide Book For Synchronous Motor & Alternators.
 Few Indian Authors & Conventional System Are Also Referred For This
Project.
Contact Us
Gujarat Institute of Solar Energy
City Campus
1st Floor, Giriraj Complex,
Opp. Bank of Baroda,
Near Sardar Patel Statue,
Naranpura,
Ahmedabad - 380013.
Gujarat-INDIA
College Campus
Sector 20, Akshardham Temple,
Nr. Jain Temple,
Borij, Gandhinagar
Gujarat-INDIA
Thank You for Visit Us….!