- RN202 · 2026
DEIF-based power management and control system – 2026
DEIF PMS
Diesel generators
Solar PV
Grid import
PLC integration
6
DEIF CONTROLLERS
grid, gensets and solar
4
GENERATION SOURCES BALANCED
grid, 2 gensets, solar
1,436 kW
SOLAR CAPACITY UNDER CONTROL
existing plus new arrays
Real time
DEMAND-BASED RESPONSE
driven by site PLC load data
PROJECT SUMMERY
- SECTOR
- Agriculture
- LOCATION
- Regional VIC, Australia
- DISTRIBUTOR
- PowerCor
- SOLAR CAPACITY
- 1,436 kW
- REFERENCE
- RN202 · 2026
- PROTOCOLS
- Ethernet/IP · Modbus TCP
PROJECT DELIVERY SUMMARY 2026
This project involved the delivery of a DEIF-based power management and control system for a large agricultural facility in regional Victoria. The system was designed to automatically balance multiple power generation sources in response to changing electrical demand, improving power reliability and operational efficiency.
Using real-time load information from the site’s PLC, the DEIF control system independently regulates solar generation, two diesel generators, and grid power imports to maintain a stable and reliable power supply. The system also provides generation feedback to the PLC for coordinated site-wide operation.
The completed solution included the installation and configuration of six DEIF controllers: one at the grid connection point, two on the diesel generators, and three across the solar inverter systems. This architecture enables direct control of each generation source, accurate load sharing, and dependable overall system performance.
SYSTEM ARCHITECTURE
- Grid Mains
- 1 × DEIF controller
- PowerCor import
- Diesel Gensets
- 2 × DEIF controllers
- Sync & load share
- Solar PV
- 3 × DEIF controllers
- Set-point control
- DEIF Power Management System
- Load sharing · source prioritisation · demand-based dispatch
- Site PLC
- Supplies real-time load data · receives generation feedback · Ethernet/IP & Modbus TCP
- 1
- Grid mains
- Monitoring and control of grid import at the connection point.
- 2
- Diesel generators
- Start/stop, synchronisation and load sharing across both gensets.
- 3
- Solar inverter systems
- Curtailment and set-point control of the PV generation groups.
GENERATION SOURCES
What the system controls
- Grid import
- PowerCor supply, controlled at the mains
- Diesel generator 1
- Cummins genset, DEIF PM ID 1 — 1400 kVA
- Diesel generator 2
- Second genset under matched DEIF control
- Solar PV
- 10 × SMA STP-50, 10 × 27.6 kW and 6 × SMA-110 inverters
- Ethernet/IP
- PLC ↔ power management system data exchange
- Modbus TCP
- Controller, inverter and metering communications
PROJECT SCOPE
The project scope included
- 01
Installation and commissioning of DEIF controllers on the diesel generators.
- 02
Installation of a DEIF controller at the grid mains for monitoring and control of grid power.
- 03
Installation of DEIF controllers on the solar PV system.
- 04
Integration with the site's PLC to provide demand-based control of the grid, generators, and solar generation.
- 05
Verification of protection and communications using Ethernet/IP and Modbus TCP.
ON SITE
DEIF PM ID 1 — 1400 kVA genset controller
Cummins diesel generator under DEIF control
Commissioning DEIF PM ID 26 at the switchboard
SMA inverter hall — solar generation group
Inverters and main switchboard line-up
