DEIF DELOMATIC 3 Generator Set Control System

DEIF DELOMATIC 3 Generator Set Control System

In the field of generator automation control, the flexibility, reliability, and scalability of the system are the three core elements that users are concerned about. The DELOMATIC 3 multifunctional control system launched by DEIF provides a customized solution for ship power plants, land-based power plants, and cogeneration facilities with its modular design concept and powerful communication capabilities. This article is based on official technical data and provides a deep analysis of the system architecture, core modules, communication network, and technical specifications of DELOMATIC 3, helping engineers and technicians fully understand the unique value of this classic control platform.

Chapter 1 System Overview and Architecture Design

1.1 System positioning

DELOMATIC 3 is a powerful multifunctional system designed specifically for the control and protection of generator sets. It not only covers the basic functions of traditional generator control, but also integrates many advanced features, especially suitable for application scenarios with high requirements for distributed power control. The design philosophy of the system emphasizes "exactly meeting user needs", providing a complete functional package from basic protection to complex parallel control through flexible combination configuration.

This system can be widely applied to various types of power plants:

Ship power station: meets the requirements of classification societies and adapts to harsh marine environments.

Land based power station: used as a primary or backup power source to ensure power supply.

Local cogeneration: achieving cascade utilization of energy and improving overall efficiency.

Combined thermal power plant: generates electricity while providing heating, optimizing the energy structure.

1.2 Core Architecture: DGU and CP

The DELOMATIC 3 system consists of two core components:

DEIF Generator Unit (DGU)

DGU is the control core of the system, with one DGU configured for each generator set. It is a module assembly installed on a standard rack, with different functional modules inserted according to specific application requirements. DGU independently completes all control, measurement, and protection tasks for the generator set, and can work normally even without the higher-level system, ensuring the distribution and reliability of control.

Control Panel (CP)

CP, as a human-computer interaction interface, is a subordinate unit of DGU. Each DGU can connect up to 3 control panels, distributed in different operating positions for easy local monitoring. The subordinate design of CP means that even if the control panel malfunctions or disconnects, all settings and automatic control functions within the DGU remain valid and will not affect the normal operation of the generator set. The core functions of CP include:

Alarm display: Display all alarm information on the LCD screen.

Parameter adjustment: View and modify the internal parameter settings of DGU.

Data display: Display both measured and calculated operational data.

Status indication: 16 LED indicator lights are used to quickly display status and alarms.

Instrument interface: Supports connecting up to 16 analog instruments.

1.3 System Communication: ARC net Network

All communication between DGUs, as well as between DGUs and their affiliated CPs, is implemented through an independent ARC net network. ARC net is a token ring LAN technology with high real-time and deterministic characteristics, which is very suitable for industrial control scenarios.

Network characteristics:

Topology structure: Adopting a bus type structure, there must be only one starting point and one ending point, and parallel branch lines are not allowed.

Maximum capacity: A maximum of 8 DGUs (i.e. 8 generator sets) and their corresponding 24 control panels (up to 3 CPs per DGU) can be operated on an ARC net network.

Scalability: The network can also be connected to other terminal devices, such as higher-level alarm systems or graphical monitoring systems.

Transmission medium: RG-62 A/U coaxial cable is used, with an impedance of 93 ohms and a transmission rate of 2.5 Mbit/s.

Interference suppression: A ferrite magnetic ring must be installed approximately 0.1 meters before and after each BNC connector to reduce electromagnetic interference.

Terminal matching: Terminal resistors must be installed at both ends of the network to prevent signal reflection.

Transmission distance: Without repeaters, the maximum network length can reach 300 meters, and the minimum distance between nodes is 1.8 meters.

This specialized communication network design ensures real-time and reliable transmission of key data such as load distribution and synchronization instructions between units in complex operating conditions such as multi machine parallel connection.

Chapter 2 Detailed Explanation of Core Modules

The modular essence of the DELOMATIC 3 system lies in its rich library of functional modules. Each DGU rack can be combined and installed with different modules as needed to achieve customized functionality. All modules use pluggable terminals for easy installation and maintenance.