Smart Solar Inverter with Reactive Power Compensation

Electrical Research and Development Association (ERDA)

Grid tied solar inverter is one of the main component in the solar photovoltaic (PV) system. Currently, majority of inverters that are used to connect the PV to the electric power grid operate at unity power factor and hence can inject a fixed amount of active power at the point of common coupling (PCC) of the grid depending upon the amount of available solar irradiance. With the dramatic increase in the deployment of renewable based Distributed Energy Resources (DERs), reactive power drawn from the grid as compared to active power has increased considerably.  Thus, the power factor of the grid supplied by the PV system that uses inverters injecting only active power, will go to a lowest value. Moreover, in order to supply the reactive power required for connected loads, utilities need to install capacitor banks and various types of FACTS devices which adds to operational complexity and additional cost to the system. In addition to above listed points, the solar inverter does not get utilized upto its rated capacity as the output of the solar inverter varies in direct proportion to the solar irradiance which varies invariably throughout the day and does not remain constant. This lead to underutilization of solar inverter when the irradiance is low. Above listed demerits of solar inverter operation at unity power factor can be addressed by incorporating the feature of reactive power compensation in solar inverter. In addition to carrying out standard function, reactive power compensated solar inverter has the capability of performing communication with the electrical grid and can improve the power factor of the grid and also improves the capacity utilization of solar inverter. The smart solar inverter has a feature of reactive power generation (both lag and lead) and can operate in various modes of reactive power compensation.

ERDA has developed technology of Reactive power compensated solar inverter. The main features of the developed technology are as follows:

  • Reactive power compensation feature in grid tied solar inverter
  • Available modes for VAR compensation:
    • Fixed Q mode
    • Fixed pf mode
    • Volt-VAR mode
  • DSP based digital design
  • MPPT tracking with tracking efficiency greater than 99% 
  • Reliable grid synchronization
  • Built in output isolation transformer 

Figure: Prototype of Reactive power compensated solar inverter (5 kVA)

ERDA's

Leadership Team

Dr. Satish Chetwani

Director

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01.

Dr. Uday Puntambekar

Asst. Director & Head of Division Mechanical and Insulating Materials, Rajahmundry, Purchase

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02.

Mr. Rajib Chattopadhyay

Sr. Manager & Head of Division PETE II (Impulse, Cable, CT-PT, Calibration), Rabale, Narol, ERDA North, Maintenance, (Electrical & Civil)

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03.

Mr. Anil Khopkar

Asst. Director & Head of Division Business Development & CRM, Corporate (Accounts & Finance, P&A, HR)

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04.

Mr. Anil Aswani

Asst. Director & Head of Division SEC (Third Party Inspection, Energy Meter, EMI/EMC, Appliance, Lamps & Luminaries, Motor & pumps, Power Systems)

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05.

Mr. Yashinkhan Pathan

Sr. Manager & Head of Division PETE I (Transformers, Switchgear, Short Circuit – Makarpura & Savli)

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06.

ERDA's

VISION

An Internationally Renowned Laboratory and Center of Excellence in R&D for Electrical Industries and Utilities.

ERDA's

MISSION

To Achieve Excellence by Virtue of Competence through R&D, Testing, Calibration, Training and Information Dissemination to Improve Quality and reduce the cost of Equipment, Materials and Services for Electrical Industries, Utilities and Users of Electricity.

ERDA's

VALUES

  • Attitude to Excellence
  • Dedication to Satisfy Customer Through Competitive Quality Services in Minimal Lead Time
  • Confidence in Integrity of Results
  • Loyalty & Pride for the Organization
  • Work as Family
  • Respect Dignity / Potential of Individuals
  • Motivate Each Other
  • Strengthen Membership and Industry Links
  • Develop Linkages with Foreign Research Organizations
  • Marketing at International Level

ERDA's

Middle Management Team

Name of Employee
Mr. Mehul Patel
Sr. Manager
HR
Mr. Pratik Shah
Asst. Manager
Accounts & Finance
Mr. Pranav Parikh
Dy. Manager
Business Development
Mr. Shailesh Patel
Sr. Manager
Cables, CT-PT, Capacitors & PD
Mr. Ravi Nandwana
Sr. Engineer
CT-PT & Capacitors
Mrs. Vidya Kapse
Dy. Manager
Customer Relationship Management
Mr. Puran Gajera
Dy. Manager
EMI/EMC
Mr. Nitin Chitte
Asst. Manager
Impulse – Makarpura
Mr. Anil Solanki
Sr. Manager
Information Technology
Mr. Jaydeep Sheth
Dy. Manager
Liquid Dielectric
Mr. Ravi Singh
Dy. Manager
Motors & Pumps, Solar Pump & Converters
Mr. Anil Suthar
Dy. Manager
Mechanical
Mr. Bhavesh Vasiyani
Manager
Non Destructive & Energy Management
Mr. Mitesh Prajapati
Sr. Engineer
Quality System
Mr. Sandeep Soni
Manager
Short Circuit 3– Savli
Mr. Amar Shah
Dy. Manager
Third Party Inspection
Mr. Asheesh Dhaneria
Manager
TM5(A) NPT Electronics,
TM5 (B) NPT Electrical
Mr. Munaf Patel
Manager
Short Circuit 2 – Makarpura
Mr. Pankaj Chawla
Manager
ERDA (North)
Name of Employee
Mr. Laxman Bhekare
Sr. Manager
Admin
Mr. Rakesh A Patel
Dy. Manager
Appliance
Mr. Brijesh Sachdeva
Manager
Business Development ERDA (North)
Mrs. Sheetal Panchal
Dy. Manager
Cables
Mr. Nirav Taunk
Manager
Calibration
Mr. Umesh Soni
Manager
Electrical Diagnostics
Mr. Tejas Mistri
Dy. Manager
Energy Meter
Mr. Tirthashankar Vishwakarma
Manager
Impulse – Savli
Mr. Nitin Patel
Dy. Manager
Lamps & Luminaires & Solar
Mr. Pramod Patel
Dy. Manager
Maintenance (Civil & Electrical)
Mrs. Sneha Sheth
Manager
Solid Dielectrics
Mrs. Bhoomi Patel
Dy. Manager
Metallurgy
Mr. Shailesh Modi
Sr. Manager
Power Systems
Mr. Jeetendra Tahilwani
Sr. Manager
Transformers & Short Circuit 2 – Makarpura
Mr. Goutam Som
Manager
Switchgear & IP
Ms. Shefali Talati
Dy. Manager
TM4 Power Systems (R&D), Documentation
Mr. Kapil Sharma
Dy. Manager
Transformers
Mr. Nitin Doshi
Sr. Manager
ERDA (West)
Mr. Rajesh Marri
Dy. Engineer
ERDA (South)

Where else are we located?

These services are provided through its 28 state-of-the-art centres located at its head office in Vadodara and three regional laboratories located

ERDA's

Code of Conduct

Our Mission and Values statement clearly declares that we shall achieve excellence in our areas of operation. Achieving this excellence is not possible if we do not act with Integrity, Honesty, Impartiality, Dignity, Loyalty and Pride for the organization. We must always ensure that we live out those values every day.

One of our primary objectives is to help our customers, meet quality standards for virtually any market in the world and protect them against risk by ensuring compliance with local, national and international laws. The accuracy and validity of reports and certificates that we provide and maintaining the trust and confidence of our customers, their customers and others impacted by our work, are therefore important factors which contribute to our success.

Our objective is to achieve excellence by virtue of competence through R&D, testing, calibration, training and information dissemination to improve quality and reduce cost of equipment, materials and services for electrical industries, utilities and users of electricity.

ERDA's

CLIENTS & TESTIMONIALS

ERDA collaborates with Manufacturers, Distribution & Transmission Companies, Power Plants & Process Plants across India and Globe to meet their requirement for laboratory evaluation and contract research. Our state of the art laboratories along with highly competent manpower ensures proper evaluation of our client’s products and to get greater market access. With “Customer First” centric approach, more than 10,000 customers are part of ERDA family.

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