DEIF DELOMATIC 400 GAS Modular Gas Engine Control and Monitoring System

DEIF DELOMATIC 400 GAS Modular Gas Engine Control and Monitoring System

Basic Product Information

DELOMATIC 400 GAS is a fully gas engine control and monitoring system developed by DEIF A/S, with document number 4921240452. Its core positioning is a modular process controller, based on a 25 year proven generator control system for ship applications. It is designed specifically for gas engine/turbine energy stations, perfectly adapting to the harsh environment, remote deployment, and unmanned operation needs of dispersed energy generation on land and sea. It supports local/remote TCP/IP PC monitoring, integrates emission control, combined heat and power supply control, governor, generator monitoring, and other full functions, and also has built-in power grid fault protection mechanism.

Hardware Configuration and Specifications

The system hardware consists of a rack, core functional modules, and peripherals. All modules come with their own processors, work independently, and communicate through the rack backplane. The core hardware parameters are as follows:

Standard Rack

We provide three industrial standard rack specifications with a protection level of IP20, which comply with multiple international temperature vibration and impact standards. The specific parameters are shown in the table below:

Rack specifications can accommodate modules, working temperature storage, temperature vibration/shock certification

24 TE 2 module+power/processor module -25~70 ℃ (IEC 60068-2-1/2) -40~85 ℃ (IEC 60255-1) DNV A+C, IEC 60255-21 series, 20g impact/50g impact

42 TE maximum of 4 modules+power/processor module as above as above

60 TE maximum of 8 modules+power/processor module as above as above

The rack material is UL94-V0 plastic joint, aluminum shell, steel cover plate, EMC/CE compliant with EN 61000-6-2/4 and IEC 60255-26, with safety standards reaching EN 61010-1 Class III overvoltage (690 Vac) and pollution level 2.  

Core functional modules

The system consists of four core modules, each with independent power supply and complementary functions. The key parameters are shown in the table below:

Module model, core functions, dimensions, and core parameters

PCM 4 ∙ 3 main power supply+main control module, providing power to the rack, controlling backplane data exchange, including application programs and communication interface 8TE (40.64mm) power supply of 18-36 Vdc/6A; 3-channel CAN, 1-channel RS422/485, 1-channel ARCNET, 1-channel 100Mbps network; 180MHz processor, Linux 2.6 system, 64MB SD RAM

PCM 4 ∙ 4 expansion rack controller, communicating with the main PCM through ARCNET 8TE (40.64mm) power supply of 18-36 Vdc/6A; 3 CAN channels, 1 RS422/485 channel, 1 ARCNET channel; 256000 Baud USB service port, 2MB RAM

IOM 4:2 40 channel multifunctional IO module, optoelectronic isolation protection, suitable for harsh environments 6TE (30.48mm) 12 digital inputs, 4 frequency inputs, 10 digital outputs, 6 temperature inputs, 4 analog inputs, 4 analog outputs; Temperature sensing resolution of 0.1 ° K, analog input with 16 bit resolution

SCM 4:1 0.5 level AC measurement and protection module, three-phase electrical parameter acquisition for power grid/generator, with synchronous inspection and tripping relay 6TE (30.48mm) for direct measurement of 690Vrms three-phase voltage, supporting CT/PT expansion; Measurement accuracy of 0.5 level, capable of measuring 500Hz harmonics; 3.25kV voltage isolation, 2-channel relay output (8A/230Vac)

Peripherals

The standard configuration includes a 12 inch touchscreen PC that supports USB, TCP/IP direct/remote access, serving as the core human-machine interaction end of the system.

Core Functions (Standard Configuration)

The system covers three dimensions of measurement, protection, and control, providing comprehensive management and control for gas engines/generators/power grids. Among them, gas engines have exclusive customized functions:

Full dimensional measurement function

Electrical parameters: generator/grid three-phase voltage (L1-L3/N), three-phase current, phase separation/total active/reactive power, active/reactive energy metering;

Operating parameters: device operating time, number of circuit breaker operations;

Process parameters: temperature and pressure of the entire plant area, temperature and pressure of the gas pipeline, exhaust temperature after the turbocharger, etc;

Acquisition accuracy: SCM 4:1 electrical parameter measurement at level 0.5, IOM 4:2 temperature resolution at 0.1 ° K, analog accuracy at 0.5% full-scale.

Multiple protection functions

Power grid protection: vector jump, frequency change rate (df/dt), voltage/frequency anomaly protection;

Generator electrical protection: over/under voltage, over/under frequency, current asymmetry, overload, reverse power, minimum power, overcurrent, thermal overcurrent, overexcitation, demagnetization;

Exclusive protection for gas engines: lubricating oil pressure monitoring, coolant temperature monitoring, gas leak detection, gas valve opening time monitoring, exhaust back pressure monitoring, coolant water level limitation, etc;

General safety protection: overspeed protection, circuit breaker position disconnection monitoring, emergency stop, hardware safety chain (with reset), configurable fault input, starter gear to gear monitoring.

Full scene control function

Basic control: speed controller (with acceleration control, no external speed controller required), voltage regulation/power factor control, grid synchronization (with voltage regulation and time monitoring), operation of electric circuit breakers, pre operation/post operation of auxiliary equipment;

Gas engine control: fully automatic start stop, preheating control, operation after shutdown, multi parameter based load regulation, mixture control, emission control (optional lambda sensor/intake manifold temperature and pressure/combustion chamber temperature), cooling/emergency cooling/heating circuit control;

Energy management control: cogeneration control (thermal demand control power output), peak shaving, CH4 value/gas level/pressure control operation, temperature/air valve/exhaust bypass valve control in the machine room;

Smooth operation: Power ramp function (achieving smooth start stop), configurable simulated power setpoint.

Human machine interface and operation and maintenance functions

The system is equipped with a visual user interface and supports local and remote full process operation and maintenance. Its core features include:

Data display: All measured values are displayed in both graphical and numerical formats, with visual protection status and real-time display of component status changes on equipment P&I diagrams;

Data recording: a log book with timestamps (200+records), trend analysis function;

Operation configuration: supports parameter adjustment, multi-user access (touch screen/laptop USB/TCP/IP), remote TCP/IP access;

Operation and maintenance reminder: Based on the configurable maintenance reminder of runtime, it can quickly diagnose faults and restore operations.

Communication Capability

The system supports multi protocol and multi interface communication, and can interface with external devices such as ignition systems, anti explosion systems, and gas mixing control systems. The core communication method is:

Module to module: rack backplane, ARCNET (main/expansion rack);

Equipment room: CAN (125/250 kbps), RS422/485 (4800-57600 Baud);

Remote/Local: Ethernet (10/100 Mbit TCP/IP), USB;

Other: ARCNET (electrical/optical connection, 2.5 Mbit), Display port (TTL).