DEIF Delomatic 4 Offshore/Ocean Platform Dedicated Generator Power Management System DM-4

DEIF Delomatic 4 Offshore/Ocean Platform Dedicated Generator Power Management System DM-4

Basic Information

Model: dm-4-marine-data-sheet 4921240294-uk.pdf

Product: DEIF Delomatic 4 Offshore/Ocean Platform Dedicated Generator Set Power Management System DM-4

Positioning: A comprehensive control, protection, and power management system for distributed modular power stations targeting ships, offshore drilling platforms, and offshore energy; Supporting integrated control of diesel/gas/turbine generators, shaft generators, busbar interconnection switches, and shore power cabinets, all certified by mainstream classification societies, with high seismic and harsh environmental resistance.

Core features: Only 4 types of hardware modules are needed to build a complete power station solution, with a distributed architecture that can manage up to 15 units per system. The software and hardware are highly customized for project delivery.

Applicable application scenarios

Various commercial vessels: propulsion powered DP2/3 positioning vessels, supply vessels, multi diesel unit vessels, and vessels with shaft generators (capable of generating electricity/electric dual working conditions);

Offshore drilling platforms, offshore oil and gas facilities, and turbine generators;

Multi segment busbars, multi bus tie circuit breakers, and multi-channel shore power grid connected systems;

Combined heat and power generation, multi-source hybrid distributed offshore power station, compatible with multiple operating mode combinations.

Overall system architecture design

1. Distributed DGU unit

Each generator is equipped with a set of DGU plug-in boxes (rack mounted controller units), and each DGU communicates with each other through a dedicated DM-4 LAN internal bus to jointly complete power distribution and linkage start stop.

A maximum of 15 DGUs can be connected to a single system;

Each DGU independently completes local measurement, protection, speed and voltage regulation, and circuit breaker control;

All DGU underlying software is unified, relying on hardware coding to distinguish between unit/bus/shore power roles, and spare parts are universal.

2. Human computer interaction system

DU split display screen: Up to 3 external DGUs can be connected to a single DGU, and the cabinet door is embedded for real-time display of three-phase power, fault alarms, and parameter settings;

AOP extension operation panel:

AOP-1: Standard host local panel, 0.5m short line direct connection to DU, 8 buttons+16 status LED;

AOP-2: CAN bus remote type, up to 200m away, with a maximum of 5 blocks mounted on a single CAN bus, supporting factory wide mode switching and status indication.

3. Internal communication DM-4 LAN

PCM4-1 (basic type): Single twisted pair bus architecture;

PCM4-5 (high-end redundant type, optional dual network redundancy);

Long distance scenarios can be connected to an external fiber optic conversion module;

External communication channels: RS485 Modbus RTU, Ethernet Modbus TCP, CANopen, compatible with shore based SCADA and ship control systems.

PC upper tool USW (free software): USB directly connected to PCM, supports parameter up and down installation, firmware upgrade, real-time monitoring, alarm recording, trend curve, and clock synchronization.

Hardware rack and four core modules

The whole machine only has 4 standardized modules, which can be freely combined with different slot racks; The rack has a dual EU height of 6HE specification, with 4 sizes available: 24TE/30TE/42TE/60TE.

1 PCM main control module (system core, two models)

PCM 4-1 (Basic, 8TE)

Integrated system power supply, main CPU, IO routing;

Interface: 3 CAN buses, 1 RS485, DM-4 LAN, USB debugging port; Only single bus without Ethernet.

PCM 4-5 (redundant high-end, 8TE)

Dual DM-4 LAN redundant bus;

Interface upgrade: 2 x CAN, 2 x RS485, Ethernet TCP/IP, USB; Support remote upper level networking.

General Electric: Power supply 24VDC (allowable fluctuation of -25%~+30%), maximum 6A; battery voltage measurement accuracy ± 0.5V (20 ℃); CAN speed is 125/250kbps.

2 IOM-41 Universal IO Modules (6TE)

Integrated hybrid input/output board, unified jumper switching channel type:

16 inputs: Single channel optional 4~20mA/0~10V analog, passive binary switch, supports wire breakage detection; Analog accuracy level 1;

12 relay outputs: 250VAC/24VDC 8A passive isolated contacts, automatically normally open upon power loss;

2-channel isolated analog output: 0/4~20mA, with short-circuit protection, maximum load of 500 Ω, accuracy level 0.5.

3 SCM-41 Basic Measurement Synchronization Module (6TE)

High precision 0.5 level three-phase power transmitter, equipped with synchronous and circuit breaker control as standard; Only control one generator GB.

Measurement specifications: Voltage 100~690V direct measurement, CT 1A/5A input; 2.5kV electrical isolation, measuring bandwidth up to 500Hz harmonics.

4 SCM-42 Enhanced Measurement Speed Control Module (12TE)

Includes all SCM41 measurement synchronization functions, with additional integration of speed regulating GOV and voltage regulating AVR analog/pulse output. It can simultaneously control one generator and multiple bus tie TBs, with a maximum of four synchronization circuits controlled by a single DGU.

Rack mechanical specifications

Four rack sizes (TE slot/depth/height):

24TE: 2 IO slots; 30TE: 3 IO slots; 42TE: 5 slots; 60TE: 8 slots;

Unified depth of 266mm, height of 190mm, steel frame; Weight: 3.2-8.3kg.

Protection and Environment: IP20 for the entire machine; Working temperature -25 ℃~+70 ℃; Meet DNV marine vibration standards; Plastic parts UL94-V0 self extinguishing; There are two installation methods: base and embedded.

Display panel opening: standard installation size of 222 × 115mm.

Core machine functions

（1） Single machine local control function

Engine start stop logic, multi-stage start attempts, idle/warm-up control;

Dynamic/static synchronous grid connection, complete interlocking of generator circuit breaker GB;

Speed control system: frequency closed-loop, symmetrical/asymmetrical active load sharing;

AVR voltage regulation: voltage closed-loop, reactive load sharing;

Complete set of ANSI standard timed generator/busbar protection;

Hierarchical control of overloaded equipment and multi-level unloading of non critical loads;

Engine CAN J1939 bus communication, reading ECU water temperature, oil pressure, and speed;

Local storage of 150 alarm events with time stamped fault records.

（2） Plant wide Power Management PMS (Distributed Core)

Load linkage automatic start stop unit, customizable start priority;

Multi unit active/reactive power balanced distribution, supporting fuel optimization equalization algorithm;

Automatic synchronous control of busbar contact circuit breaker TB and shore power circuit breaker;

Segmented busbar operation logic, black start, automatic switching of standby units;

Load grouping management, automatic shedding of secondary loads due to overload;

Quickly identify faulty units, reduce load and disconnect from the grid to prevent power loss throughout the ship; Optional fast load suppression function linked thruster.

（3） Programmable customization extension

Based on flexible IO and measurement systems, customized functions can be developed, including thruster linkage, dedicated load curves, special operating modes, and custom protection logic.

Complete ANSI timed protection checklist

All protections are time limited and can be independently configured with alarm/trip/shutdown fault levels, covering generators, busbars, busbars, and shore power:

ANSI Number Protection Name Position

15 overspeed monitoring 1

24 overexcitation 2 sections

25 Simultaneous Verification 1

27/27B Generator/Bus Undervoltage 1/2 Section

32/32R overload, reverse power 2 sections

40 demagnetization protection 2 sections

46 current imbalance 1

47 phase sequence error 1

50 instantaneous overcurrent in 4 sections

50BF circuit breaker failure 1

51V low voltage limited overcurrent (custom curve)

59/59B Generator/Bus Overvoltage Section 2

60 voltage imbalance 1

81/81B high and low frequency (2 segments each for generator/busbar)

86 fault lockout relay

90 frequency/power, voltage/reactive power regulation

94 Trip Exit

Advanced protection for 95 engine/governor/excitation system faults

Optional advanced protection: engine fault prediction, rapid load drop suppression, early isolation of faulty units to avoid system wide power outages.

Communication and supporting software

Internal DM-4 LAN distributed bus;

External: RS485 Modbus RTU, Ethernet Modbus TCP, CANopen;

The USW upper software is free to download, with functions including parameter reading and writing, real-time trend, alarm recording, firmware upgrade, and remote debugging.

Classification Society and Environmental Certification

Mainstream classification society full certification: DNV, GL, LR, ABS, BV, RINA, CCS, China Classification Society, etc;

2 vibration standards meet the DNV A+C ship vibration level;

3 EMC electromagnetic compatibility complies with EN61000 series industrial/marine standards;

Safety level EN61010, overvoltage class III, pollution level 2.