e-Newsletter - September 2022

Department Events

Guidance on GATE Exam: GATEway to Higher Studies

A guidance session has been arranged in association with the EFFECT Student body of the electrical department on “GATEway to Higher Studies” for SE Electrical Division: A and B students and staff of the department on 12/9/2022. The Resource Person was Mr. Vishal Patil, GATE forum Nashik. A total of 86 students and faculty members attended the session. This session encouraged students to prepare for GATE. The session was coordinated by Prof. Pooja Raut.

 

Expert lecture on “Basics of Power System Protection” on 1^st September 2022

An Expert lecture has been arranged in association with the EFFECT Student body of the electrical department on “Basics of Power System Protection” for TE Electrical Division: A and B students and staff of the department on 01/9/2022. The Resource Person was Mr. Mangesh Dalvi, Additional Executive Engineer, MSETCL, Nashik. A total of 116 students and faculty members attended the session, this lecture helped students to acquire knowledge of different circuit breakers and different relays. The session was coordinated by Prof. Pooja Raut. 

 

Expert lecture on “Calibration Systems and Process” on 22^nd September 2022

An Expert lecture has been arranged in association with the IEEE Students Chapter of the electrical department on “Calibration Systems and Process” for SE and TE Electrical Division: A and B students and staff of the department on 22/9/2022. The Resource Person was Ms. Devyani Paraskar. A total of 68 students and faculty members attended the session. This session helped students to understand the meaning of calibration, how to carry out it and what are the related standards. The session was coordinated by Prof. Pooja Raut. 

International FDP on “Advanced Topics in Control System” from 22^nd September to 24^th September 2022

Department of Electrical Engineering in association with IET Nashik Local Network organized three days International Faculty Development Program on “Advanced Topics in Control Systems”. The speakers were Dr. Vineet Vajpayee, Dr. Mohammad Hosein, Dr. Vidya Sagar Yellapu, Dr. Nalin Kumar, Dr. Aniket Khandekar, and Dr. S. P. Sadala. Topics and affiliations of the speaker are given in the flyer below. This FDP was arranged specially for Ph.D. Scholars and faculty members. The speakers delivered excellent talks regarding different advanced controllers and EV Applications. This FDP was conducted in online mode. Total of 102 Participants including Ph.D. Scholars and various college faculty members took gain through the lecture. This FDP was coordinated by Prof. Dr. R. K. Munje and Prof. Merin John.

Webinar on ‘Changing Trends in Electrical Power Systems in the 21st Century' on 10^th September 2022

Department of Electrical Engineering has organized an online webinar on “Changing Trends in Electrical Power Systems in the 21st Century" by Dr. Ujval Sonone, Sr. Manager, Technology Center-AIS, ABB India Ltd., Nashik, on 10th September 2022. In this session, Dr. Ujval guided on changing trends in Electrical Power Systems in the 21st Century. The session was open to all the graduating students. A total of 40 students from various colleges and faculty members attended the session. This event was coordinated by Prof. Dr. M. P. Thakre.

Panel Discussion on “Scope, Opportunities, and Trends in Electrical Engineering” On 21st September 2022

Department of Electrical Engineering has organized a Panel Discussion on “Scope, Opportunities, and Trends in Electrical Engineering” by Mr. Shrikant Karode, Mr. Sandeep Kulkarni, Mr. Pankaj Patil, Mr. Manoj Deore, Mr. Vinod Halge on 21^st September 2022 from 3:00 PM to 5.00 PM. The panel discussion was moderated by Mr. Omkar Buwa. The panelists put their views on Scope, Opportunities, and Trends in Electrical Engineering. A total of 350 prospective students and their parents, engineering students, Ph.D. scholars, and various college faculty members from Engineering and Diploma College took part in this session. This session was coordinated by Prof. S. K. Shinde and Prof J. D. Patil.

Activity on ‘Azadi Ka Amrit Mahotsav’ by EFFECT Student Body

Display of the poster of the event '75 School Students, 75 Ideas on Azadi Ka Amrit Mahotsav' by EFFECT Student Body of Electrical Department in association with the Institution's Innovation Council (IIC) and the AICTE-IDEA Lab of K. K. Wagh Institute of Engineering Education and Research, Nashik. In this, students of the electrical department guided 75 students of the school on the AICTE-IDEA lab facility of the Institute and encouraged them to come up with innovative ideas. Around 75 school students submitted 75 ideas.

Teachers Day Celebration

Teacher's Day was a celebration by EFFECT Student Body on 9^th September 2022.

 

Parents Meeting

Department of Electrical Engineering has organized an “Online Parents Meeting” on 13th September 2022 for all the parents of SE to BE students. Around 35 parents participated in this meeting. During this meeting, Dr. R. K. Munje informed all the parents about the exam pattern and preparation by the department for the coverage of the remaining curriculum. Prof. Shewale gave information on the schedule of practical and oral examinations and Prof. Dr. Dhamal informed parents about the internship and project activities. The overall event was coordinated by Prof. S. S. Khairnar.

Student Corner:

Student Placement:

The following students are placed in various multinational companies in September 2022. Congratulations to all the students!

Sr. No.	Name of the Student	Placement Date	Batch
1.	Darshana Supadu Suryawanshi	02/09/2022	2022-23
2.	Devang Vyas	02/09/2022	2022-23
3.	Sayyed Hujaifa Jabbar	02/09/2022	2022-23
4.	Khushbu Sunil Lengole	02/09/2022	2022-23
5.	Omprakash Deepak Pawade	02/09/2022	2022-23
6.	Pratham Atul Chudiwal	02/09/2022	2022-23
7.	Rahul Rajkumar Domkawale	02/09/2022	2022-23
8.	Nimse Rushikesh Balasaheb	02/09/2022	2022-23
9.	Sayaji Rajendra Tungar	02/09/2022	2022-23
10.	Siddhesh Sanjay Vyavahare	02/09/2022	2022-23
11.	Jalesh Vinod Pachpande	03/08/2022	2022-23
12.	Umesh Mahadu Govardhane	03/08/2022	2022-23

 

Students Achievement

In the academic year 2021–2022, the following students are toppers in the electrical department.

SE Toppers

A Division

B Division
 

 

TE Toppers

A Division
 

B Division
 

 

BE Toppers

A Division
 

B Division 

Industrial Visit:

1.      Industrial Visit of Third Year (Div. B) Students to 132 kV Takali Substation along with Prof. P. M. Vyavahare and Prof. Abhishek Shrivastava for the subject Electrical Installation Design and Condition Based Maintenance on 3rd September 2022. The industry expert Mr. Navnath Thube has guided the students.

 

2.      Industrial Visit of Third Year (Div. A) Students to 132 kV Takali Substation along with Prof. S. K. Shinde for the subject Electrical Installation Design and Condition Based Maintenance on 5th September 2022. The industry expert Mr. Navnath Thube has guided the students.

IET India Scholarship Participation

Our students Pranjal Jain, Prasad Rathod, and Tejas Rayate participated in the Regional Round of the Institution of Engineering and Technology (IET) India Scholarship Award 2022. They are the only ones to represent Nashik Local Network.

Alumni Visit

In September one of our past students, Ms. Barde Neerja Ashok visited our department with her father. She passed out in 2010. She was University Ranker in SE (5th Rank) and BE (5th Rank). Currently, she is in Dubai. We wish her great success in life.

Faculty Corner

Faculty Participation

Name of Faculty	Title of Event	Duration	Type of Event	Organized by
Ms. Shubhada A. Borade	Faculty Development Programme on “Smart Manufacturing”	6 day	FDP	AICTE IDEA LAB, K. K. Wagh Institute of Engineering Education and Research

Dr. R. K. Munje delivered a session on ‘Projects through AICTE-IDEA lab’ on 12^th September 2022, in the faculty development program on “Smart Manufacturing” organized by AICTE-IDEA lab of KKWIEER, Nashik 

Smart India Hackathon 2022

Prof. J. P. Shah mentored a team for the smart India Hackathon 2022 and won 1st Prize of Rs. 1 lakh. Congratulations to Prof. Shah and the whole team.

 

Prof. Priya Vyavahare mentored a team for the smart India Hackathon 2022 and gave their best for the competition. Congratulations to all!

 

 

Student Articles:

Footstep Power Generation Using  Piezoelectric Sensor

Avhad Harshal Dnyandev             ,                      , SE-DIV B,(Electrical)

harshal05avhad@gmail.com

1.    INTRODUCTION

Day by day, the population of the country is increasing and the requirement for power is also increasing. At the same time, the wastage of energy also increased in many ways. So reforming this energy back to usable form is the major solution. As technology is developed and the use of gadgets, electronic devices also increased. Power generation using conservative methods becoming deficient. There is a necessity arises for a different power generation method. At the same time, energy is wasted due to human locomotion and many ways. To overcome this problem, energy wastage can be converted to usable form using the piezoelectric sensor. This sensor converts the pressure on it to a voltage. So by using this energy-saving method that is the footstep power generation system we are generating power. This project is used to generate voltage using footstep force. The proposed system works as a medium to generate power using force.

 

2.    NEED OF SYSTEM
5.      WORKING
The main components of the system include piezoelectric sensors, voltage boosters, voltage regulators, a PIC microcontroller, a battery, LCD, LDR, and a socket for mobile charging.

 

            i.            The Utilization of Waste Energy foot Power With human motion is very important and highly populated countries.

          ii.            India and China where the roads railway stations, temples, etc., are all over-crowded and millions of people move around the clock.

 

3.    WHAT IS A PIEZOELECTRIC SENSOR?

A piezoelectric sensor is a device that uses the piezoelectric effect to measure changes in pressure, acceleration, temperature, strain, or force by converting them to an electrical charge

When a force is applied to a piezoelectric material, an electric charge is generated across the faces of the crystal. This can be measured as a voltage proportional to the pressure (see diagram to the right). A given static force results in a corresponding charge across the sensor.

Flex motions, touch, vibrations, and shock measurements all use piezoelectric sensors. They are used in sectors such as healthcare, aerospace, consumer electronics, and nuclear instrumentation

 

4.    CIRCUIT DIAGRAM OF PIEZOELECTRIC SENSOR

                                  

Fig 1. 1.  Circuit Diagram of Piezoelectric Sensor

In the system, two voltage boosters are used to boost the voltage to get the desired output. The output from the piezoelectric sensor is in the range of 3 V to 4 V. It has to be boosted to a range of 9 V to 12V with the help of voltage boosters.

A constant output voltage irrespective of fluctuations will be maintained by a voltage regulator. This regulated voltage is stored in the battery and is fed to the microcontroller. The LCD which is interfaced with the microcontroller in turn displays the amount of charge stored by the battery.

In this system, the power generated has been used for two applications such as lighting a street light and charging a mobile phone. An LDR is used to indicate the street light application

For a PIC microcontroller, 5 V is required for its working. The mobile charging socket also requires 5 V for its operation. A pull-down resistor is used in the socket to pull down the voltage to 5 V.

6.  CONCLUSION

In this project, we are generating electrical power as a non-conventional method by simply walking or running in the foot-step. The non-conventional energy system is very essential at this time to our nation. Non-conventional energy using foot-step is converting mechanical energy into electrical energy. By using this energy conservation theorem and Piezo sensor we are proposing a new method for power generation. Proposal for the utilization of waste energy of foot power with human locomotion is very much relevant and important for highly populated countries like India and China where the roads, railway stations, bus stands, temples, etc.

What is EV Charging and how does it work?

 

 

Shahu Anokh Rahan, Electrical Engineering (SE-A)

rahaneshahu@gmail.com

I know. You probably want to say, "Just plug it in!" However, it gets a bit more complicated when you dive (a bit deeper) into the answer. Hopefully, this short article can serve as a quick tutorial for those interested, in fact, forward this along to anyone interested in learning the basics of EV charging. Just like a cell phone, EVs need to be charged in order to have enough power to continue to run. EV charging is the process of using EV charging equipment to deliver electricity to the car’s battery. An EV charging station taps into the electrical grid to charge an EV. The technical term for EV charging stations is electric vehicle supply equipment (EVSE).

1.    HOW DO YOU CHARGE AN ELECTRIC CAR?

Charging your electric car is even more convenient than refueling a traditional ICE car (except for time, but we’ll get to that later). Your primary option would be to have an electric car charger at your residence which would allow you to charge the car overnight. This means that you wake up every morning with an almost full battery. Of course, not everyone has that option.  For those who live in multi-unit dwellings (apartments, condos, etc.) it can be more difficult but charging there is definitely doable. And there are new initiatives making it easier than ever before. Also, when you're away from home, there's a multitude of public electric car charging stations currently being built to further expand worldwide charging infrastructure. Tesla's Supercharger network is a great example of what the future holds for the industry. Your daily route shouldn't, and won't have to change in order to charge your electric car. 

2 WHERE DO YOU CHARGE AN ELECTRIC CAR?

While currently there are not as many electric car charging station companies as there are petroleum companies (at least not in the United States), more and more are popping up to provide energy for electric cars as time goes on. Just to name a few (non-Tesla) networks that are already around and expanding rapidly: EVgo, ChargePoint, Greenlots, IONITY, e.on, and Electrify America.

To make navigating all of the different electric car charging stations easier, we recommend that you look into PlugShare which lists every company’s charging stations in one convenient map. If you have a Tesla, it's even easier. Tesla's navigation will also point the driver to the company's Superchargers and Destination Chargers along any given route. What are the different levels of electric vehicle charging?

Above: A look at a Tesla Supercharger station (Source: EVANNEX; Photo by: Casey Murphy)

3   HOW FAST DOES AN ELECTRIC CAR CHARGE?

Two primary factors determine how fast electric vehicle charges; the amount of energy the charging station can dispense, and the amount of energy your particular EV can accept. As for the supply, there are three "levels" of EV charging.

3.1 LEVEL 1

To start off, we have a Level 1 charger, which is essentially just plugging in your car into your standard household wall outlet. Level 1 charging presents the slowest charging speed as it only provides around 1 kW of power (meaning if you wanted to fill up a 50 kWh battery, it would take you at least 50 hours). Although, this can still be helpful if you own a plug-in hybrid with a very small battery you don't drive your EV very far daily. 

3.2 LEVEL 2

Next up, we have Level 2 chargers which are commonly found in parking lots, at businesses, and in private homes. This is the type of charger you would likely install in your garage if you plan on charging your electric car at home. These level 2 chargers provide anywhere from 3-20 kW of power. Meaning that if your charger is anywhere on the higher end of the range, your electric car can be charged to 100% overnight. Most homes in the US have the electric capacity to install a level 2 charger without significantly costly electric service upgrades.

3.3 DC FAST CHARGE (AKA LEVEL 3)

Then, we have DC fast chargers (sometimes referred to as Level 3). These are the chargers that you most likely find on the side of highways and highly-populated electric car areas. These provide anywhere from 20 kW up to 350 kW of power on some of the newest stations being built, such as the Electrify America and IONITY networks. Tesla's new V3 Superchargers can deliver up to 250 kW and are just beginning to proliferate. When charging at these new ultra-high-speed charging stations, you could charge from 0-80% in about 20 minutes. 

But hold up, we say possibly because not every car is capable of charging at these maximum speeds. A BMW i3 or Nissan LEAF, for instance, can only accept a maximum of 50 kW, meaning that you cannot reap the benefits of ultra-fast 350 kW charging. So before you buy an EV, make sure you know the maximum charging rate so you're not surprised about that important factor after you get the car home. In fact, there's no car currently on the market that can take advantage of that 350 kW maximum charging speed. Currently, the only vehicles that can charge over 100 kW are the Jaguar iPace, Audi e-tron, the Porsche Taycan, and the Tesla Models S/X/3/Y. However, the Model Y and Model 3 hold the record for the fastest Tesla charging rate of 250 kW — you'll just need to find one of Tesla's new Supercharger V3 stations that can deliver such power.

The Porsche Taycan actually can accept the highest charging rate of any EV currently available, at 270 kW. Porsche has even promised to up that charge rate to as high as 350 kW at some point in the future.  As you can see, charging speeds have progressed drastically over the past decade and it might only be a matter of time before charging your electric car will be faster than refueling a gas-powered one.

4     WHERE DO YOU CHARGE A TESLA?

Charging a Tesla is not too different from any other electric car. However, while most North American and European electric cars use a CCS Combo plug, and Japanese electric cars (except Honda) use a CHAdeMO plug, Tesla uses a proprietary plug for their cars.

As such, only Tesla owners can use the company's massive Supercharger Network. Meanwhile, Tesla owners can also use an adapter if they prefer (note: newer Tesla's have built-in hardware already) to use a charger with the CHAdeMO plug. In Europe, Tesla also offers an adapter for the European version of the CCS plug called CCS2. However, in North America, we use CCS1 plug and Tesla hasn't yet developed an adapter to allow US Tesla owners to utilize public CCS stations. 

Keep in mind, Tesla's Supercharger Network is the most extensive in the country (and the world). However, there's been a bit of a shift (for increased versatility) in the Tesla charging hardware over the years. After the release of the Model 3 on European shores, Tesla opted to equip the Model 3 with a CCS2 plug, also. Tesla is also retrofitting European Superchargers to also have a CCS2 plug in order to provide more optionality.

5. HOW FAST DOES A TESLA CHARGE?

The DC fast charge arms race is definitely happening, and that's good news for EV consumers. Tesla has been enjoying a long lead in regards to charge rate with a rate of 120 kW for its Model S and Model X which allowed an 80% charge in about 30 to 40 minutes. There was a short period where the Audi e-tron took the crown with a charge rate of 150 kW. Then Porsche came along with the Taycan's 270 kW rate. It was not long thereafter, however, before Tesla introduced Supercharger V3 which allows for 250 kW charging on Model 3/Y and 200 kW charging on Raven powertrain Model S/

There are three main types of electric vehicle charging: Level 1, Level 2, and Level 3, mostly known as DC fast charging or rapid charging. 

Level 1 charging can be done through a standard 120-volt wall plug, which can be found throughout U.S. homes and garages. Level 1 charging is extremely slow and is typically reserved for home charging during overnight hours. It can more than 24 hours to fully charge an EV battery through Level 1 charging. 

Level 2 chargers use 240-volts and are usually found in homes and public charging stations. A Level 2 charger is much faster than a Level 1 charger – up to 15 times faster! Level 2 EV charging stations need a dedicated 208-/240-volt outlet, which is the type of outlet used for an electric clothes dryer. Most homes don’t have an extra outlet of this kind in the garage or driveway and need a dedicated circuit installed by an electrician.  DC fast chargers or rapid chargers use 480+ volts and are the fastest way to charge an electric car. 

Level 1 and Level 2 chargers deliver alternating current (AC) to an electric vehicle, which is converted to direct current (DC) by the EV battery. An EV battery can only accept DC power. On the other hand, a DC rapid charging station delivers DC directly to the electric vehicle and the electrical current does not need to be converted. Level 1 and Level 2 chargers recharge EVs much slower due to the AC/DC conversion process.

There are three types of Level 3 charging or DC fast charging: Combined Charging System (CCS), CHAdeMO (“CHArge de MOve”), and Tesla Supercharger. CCS allows AC/DC charging through the same port, cars with CHAdeMO have a separate port for AC charging.

Not all EVs can charge through a DC fast charger. DC fast chargers are only used in commercial applications and cannot be installed in homes for several reasons – homes don’t have the electrical capacity for a DC rapid charger, EV drivers don’t need that quick of a charge for overnight home charging, and a DC fast charging installation is much more expensive than a Level 2 due to the electrical infrastructure improvements necessary. On the other hand, when it comes to commercial applications a DC fast charging station may be the ideal EV charging solution for a business. For example, DC rapid chargers are perfect for fleet charging and for highway public charging stations.