DEIF Completes 3.6 MW Project

DEIF with its experience and expertise in the field of power generation control solutions introduced the Automatic Solar Controller…

DEIF India Pvt. Ltd. – a subsidiary of DEIF A/S, has installed its solar solution – the Automatic Solar Controller, ASC in the northern and western parts of India. Recently DEIF has completed a 3.6 MW project of India’s largest integrated solar company that has commissioned EPC projects of 175 MW till date. The project is spread across three different client sites namely, Pune, Rohtak and Kasna for India’s largest – and Asia’s third largest paint company, with a turnover of 141.83 billion rupees and with global presence.

DEIF’s scope of supply included concept designing, engineering, getting it approved, manufacturing and supply, FAT, commissioning, SAT, training and documentation, working closely with EPC, Inverter supplier, vendors and the end customer, thus providing a comprehensive solution that exceeded customer’s expectation.

Application challenge

The customer was keen to use solar power even in the absence of utility supply. The backup power was delivered by diesel genset – and the solar systems were to be designed to supply power along with the diesel genset and the load had to be shared between the two groups. An inappropriate design could cause burning of excess diesel by the genset or a varying load could cause an inadvertent reverse power in the genset.

Solar black diagram…

Project highlights

• 3 sites at different locations, total installed solar PV capacity 3.6 MW
• Maximum solar penetration, fast ROI
• Intuitive and user-friendly Advanced Graphical Interface system
• Display of single line diagram of the Solar PV system with status of breakers and busbar condition
• Display of real time kW reading of the Solar PV, Mains incomers
• Real time graphical view of the Active Power (kW), Reactive Power
(kVAR) and Apparent Power
• Monitoring of alarms and source of alarms
• Less diesel consumption, reduced emission leading to decreased maintenance and operation cost.

The DEIF solution – first of its kind

DEIF with its experience and expertise in the field of power generation control solutions introduced the Automatic Solar Controller – ASC, which provides integrated solution for systems with utility, diesel and solar power source.

The Automatic Solar Controller serves as an interface between solar and the diesel/gas genset controllers/Utility Power, namely Advanced Genset Controllers AGC-4, over the CAN bus to adjust power output to meet the load requirement such that the solar system takes the maximum load share. This solution enables you to share the load between solar PV group and diesel genset with or without presence of utility power with maximum solar penetration, thus resulting in maximised savings even during utility failure.

The system uses power management features of DEIF viz., fixed power mode and mains power import/export mode to achieve relevant operation philosophy. If the solar power output decreases due to bad sunlight, the deficit will be met by diesel genset through the CAN bus communication between ASC and AGC-4, thus ensuring reliable supply of power to the paint plant in all conditions.

Case Diagram (2 MW Solar power plant)…

A graphical interface solution to each of the ASC and the AGC mains is provided by connecting the same to DEIF’s AGI-110. All the TCP/IP output of the ASC and AGC mains is connected to an Ethernet switch and from the Ethernet switch AGI is connected to monitor the ASC. A case diagram for one of the plant is depicted below for your reference.


For further information: india@deif.com

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