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Home > Electrical & Electronics > Electrical Control System > Woodward 5501-365 Electronic Governor

Woodward 5501-365 Electronic Governor

Woodward 5501-365 Electronic Governor photo-1

Woodward 5501-365 Electronic Governor photo-2

Negotiable MOQ: 1 Piece (Price negotiable depending on order volume and customization)

Key Specifications

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Material:

Other, Global universal model

Condition:

Other, Global universal model

Task:

Other, Global universal model

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Guizhou Yuanmiao Automation Equipment Co., Ltd.

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Port of Shipment:

China

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Delivery time depends on order quantity.

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Material Other, Global universal model

Condition Other, Global universal model

Task Other, Global universal model

Mathematical Model Other, Global universal model

Signal Other, Global universal model

Customized Non-Customized

Structure Other, Global universal model

Power Requirements DC 24V or AC 110/220V

Control commands 4-20mA/0-10V

Dimensions 120×100×60mm

Woodward 5501-365I. Functional Positioning

The Woodward 5501-365 is an electronic speed governor or controller, primarily used for precise speed and load control of power equipment such as diesel engines and gas turbines. Its core function is to dynamically adjust fuel supply by collecting sensor signals (e.g., speed, load) and external commands, ensuring stable operation under set conditions. It is particularly suitable for industrial scenarios with high requirements for speed regulation accuracy and response speed (e.g., generator set paralleling, marine power systems).

II. Technical Parameters

Parameter Type	Detailed Description
Power Requirements	- Supports DC 24V or AC 110/220V (voltage fluctuation range ±10%) - Power consumption: ≤40W, low-power design
Input Signals	- Speed feedback: Receives frequency signals (0-20kHz) from magnetoelectric sensors and encoders - Control commands: 4-20mA/0-10V analog signals, or MODBUS/CANopen digital signals
Output Signals	- Fuel regulation: 4-20mA or PWM signals to drive actuators (e.g., Woodward 8273 series) - Status feedback: Real-time feedback on parameters like speed and load (4-20mA/Modbus)
Control Accuracy	- Speed regulation accuracy: ±0.1% of rated speed (for high-precision scenarios like grid frequency modulation) - Response time: ≤30ms for rapid adaptation to sudden load changes
Operating Temperature Range	-40°C to +85°C, wide-temperature design for harsh environments (outdoor, engine rooms, etc.)
Protection Level	Standard IP54, customizable to IP65 (dustproof and water splash-resistant)
Communication Interfaces	RS485/RS232, Ethernet (Modbus RTU/TCP), supporting integration into DCS/SCADA systems
Mechanical Characteristics	- Housing: Aluminum alloy (vibration-resistant 10-500Hz, ≤5g) + electromagnetic shielding design - Installation: Panel/rail mounting, dimensions approx. 120×100×60mm

III. Working Principle

The Woodward 5501-365 achieves precise speed regulation based on advanced PID closed-loop control combined with feedforward compensation logic, through the following processes:

1. Signal Acquisition and Processing

Speed and Load Monitoring: Reads frequency signals from reluctance sensors (e.g., engine flywheel tooth pulse) in real time, compares them with set values (e.g., rotational speed corresponding to 50Hz grid frequency) to generate deviations.
External Command Reception: Receives load commands from DCS systems (e.g., power distribution signals during paralleling) or manual setpoints.

2. Control Algorithm Operation

PID + Feedforward Control: Built-in adaptive PID algorithm (proportional, integral, derivative parameters customizable), combined with feedforward compensation to predict sudden load changes (e.g., increasing fuel supply in advance when load surges) to reduce overshoot.
Dynamic Parameter Optimization: Supports automatic adjustment of control parameters based on engine types (e.g., high-speed diesel engines/gas turbines) to enhance adaptability.

3. Execution and Feedback Loop

Output Drive: Drives fuel actuators (e.g., Woodward 8273-1011) via 4-20mA signals to adjust fuel valve openings and change fuel flow.
Real-time Feedback: Monitors actuator position through LVDT displacement sensors or potentiometers to form a closed-loop control, ensuring regulation accuracy (error ≤±0.5%).

4. Protection and Diagnosis Functions

Multiple Protections: Built-in overspeed protection (triggers shutdown when exceeding 115% of rated speed), undervoltage protection, and sensor disconnection detection.
Fault Self-Diagnosis: Outputs fault codes via LED indicators or communication interfaces (e.g., "E01" for speed sensor abnormality) for easy maintenance.

IV. Application Scenarios1. Power Generation Industry

Speed control for diesel/gas turbine generator sets (maintaining grid frequency stability), supporting load distribution during parallel operation of multiple units (e.g., power plant peak shaving, emergency power supply).
As a governor for backup power engines in photovoltaic/wind power complementary systems, ensuring no frequency fluctuation during switching.

2. Oil & Chemical Industry

Speed control for engines driving oil pumps and natural gas compressors, adapting to pipeline pressure changes (e.g., booster stations in long-distance pipelines).
Stable control of generator sets in oilfield well sites, resisting load fluctuations from oil pumps.

3. Marine & Offshore Engineering

Speed control systems for marine main engines (diesel engines), resisting wave impacts and propeller load changes (e.g., sudden headwind during full-speed navigation).
Frequency stability control for offshore platform power stations, supporting parallel operation of multiple units.

4. Industrial Drive Equipment

Speed regulation for engine-driven fans and pumps (e.g., constant pressure water supply systems), adjusting speed according to process requirements (e.g., variable frequency control of boiler induced draft fans).

V. Comparative Advantages over Similar Products

High-precision Control: ±0.1% speed regulation accuracy, superior to traditional mechanical governors (±1%) and most similar electronic governors (±0.5%), suitable for grid-level frequency modulation scenarios.
Intelligent Integration: Supports industrial communication protocols like Modbus/TCP, enabling integration into industrial internet platforms for remote monitoring and parameter optimization (e.g., via Woodward ProAct software).
Adaptive Capability: Built-in multiple engine models (e.g., Cummins, Caterpillar), adapting to different models without complex debugging, reducing engineering commissioning time.
High Reliability: Industrial-grade components (MTBF ≥80,000 hours), vibration-resistant and electromagnetic interference-resistant design, suitable for harsh environments like offshore platforms and mines.
Convenient Maintenance: Supports online parameter modification and fault code display; some models allow hot-swapping, reducing downtime maintenance costs.

VI. Typical Matching Solutions

Controller + Actuator Combination: 5501-365 paired with Woodward 8273-1011 actuator forms a "signal processing-mechanical execution" closed-loop system, widely used in 100kW-5MW generator sets.
Redundancy Design: In critical scenarios (e.g., nuclear power plant backup power), dual-machine hot standby (automatic switching between primary and backup 5501-365) can be configured to enhance system reliability.

Product Tags: 5501-365 , 8273-1011 , 1MRB150011R1