PV DG Controller
Optimize solar generation & Protect the DG
SuryaLog PV-DG Controller for Solar Power Plants
The SuryaLog PV-DG Controller for solar power plants is designed to coordinate solar PV generation with Diesel Generator (DG) operation in hybrid power systems. Functioning as a PV-DG synchronization controller, it is developed by SuryaLogix and regulates solar generation according to site load requirements while maintaining the required DG spinning reserve. In PV-DG applications, excess solar generation can affect DG operation when solar power exceeds the allowable operating requirement. As a PV-DG controller, SuryaLog regulates solar generation while the DG is running and maintains a spinning reserve of approximately 25–30% when the load is lower than the available solar power. This supports coordinated operation between solar generation, DG supply, and site load. The controller monitors solar, DG, and load parameters and helps protect the DG from excess solar power. Operating as a PV-DG synchronization controller, it supports greater utilization of available solar energy and helps reduce the possibility of frequent DG tripping associated with solar generation by regulating the solar plant’s contribution. SuryaLog also provides user-interface-based configuration, allowing relevant control parameters to be adjusted according to system requirements. These settings include step increment, spinning reserve, hysteresis, boot-up command, and summation functions — core to how this PV-DG controller adapts to different site configurations.

Why choose SuryaLogix PV-DG Controller?
- Supports coordinated hybrid operation
- Helps protect the DG
- Improves solar utilization
- Maintains spinning reserve
- Provides system visibility
- Offers flexible configuration
Specifications & Features
- Solar generation control during DG operation
- Configurable DG spinning
- Adjustable control settings
- Multi-unit support
- User-interface-based operation
Frequently Asked Questions (FAQs) About PV DG Controller
A PV-DG Controller regulates solar PV power when PV and diesel generators operate together. It maintains safe DG loading and stable solar-diesel hybrid plant operation.
DG synchronization enables solar PV and diesel generators to operate safely on a common electrical network. It helps balance solar generation, DG output, and site load.
A PV-DG Controller limits solar generation according to DG loading and site demand. It helps prevent reverse power flow, low DG loading, and unstable operation.
A suitable PV-DG Controller should provide fast PV control, DG loading protection, reverse-power prevention, and reliable communication. SuryaLogix PV-DG Controller is designed for reliable solar-diesel hybrid plant control.
A PV-DG Controller maintains safe DG loading in a solar-diesel hybrid system. A Zero Export Controller (ZED) prevents excess solar power from being exported to the utility grid.
Solar PV can operate with a DG using suitable inverters, metering, protection, and a PV-DG Controller. The controller monitors DG, PV, and load power and regulates solar output accordingly.
A DG may trip when high solar generation causes very low DG loading, reverse power, or unstable conditions. A PV-DG Controller regulates PV output to keep the DG within safe limits.
The number of MFMs depends on the plant architecture, DG incomers, load feeders, and monitoring points. MFMs are installed at required locations to accurately measure DG, load, and power flow.
