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
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) |
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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.
Precision Wire India Ltd. HAPPY CLIENT
“….On behalf of our company, I would like to congratulate & appreciate you on being able to successful completion of testing & witness of CTC/PICC & CCCR. It is because of the hard work & dedication of your team that made it possible to get the project done on the pre-decided deadline. I wholeheartedly appreciate the way you worked on this project & made it a success. We express our sincere gratitude to you & your team. Thank you for your cooperation & looking forward to more years to come…”
GR Power Switchgear Ltd. HAPPY CLIENT
“…Thank you so much for your kind support and prompt response towards completion of testing and immediate reports. We appreciate your capability and commitment towards customer satisfaction.
Keep up the good work….”
Radiant Enterprise HAPPY CLIENT
“…Once again you have proved that ERDA team is one the best in business and it is only possible due to strong, experienced, and dedicated work force like yours. Please accept our appreciation and we look forward to have more business in future…’’
Hitachi Energy HAPPY CLIENT
“…We at Hitachi Energy India Limited Bengaluru would like to appreciate the excellent support offered by the ERDA team (HV Division) during the compliance testing of our products.”
Dakshin Haryana Bijli Vitran Nigam Limited HAPPY CLIENT
“…DHBVN is pleased to appreciate the efforts of ERDA team for providing the test report on very short notice in an emergency. We hope for the same cooperation & dedication from the officers be continued in future…”
Schneider Electric HAPPY CLIENT
“…Thank you ERDA team for your incredible work in Impulse testing. All of you provided good support. Thank you once again for your selfless assistance…”
R.B.Commercial Corporation HAPPY CLIENT
“…We are hereby very much thankful to ERDA- Savli team which have fully co-operated & helped us in getting our items tested & also providing immediately final test reports within a day by considering our emergency.
Truly entire ERDA – Savli team is so active & hard working in providing service to customer by considering their needs. We are thankful to entire ERDA team for their immediate help & co-operation to us…”
