1. Overview

2. Main Technical Parameters

3. Product Features

• High Reliability: Adopts modular design, and core components are industrial-grade high-reliability devices, suitable for harsh power station environments.
• Advanced Control Algorithm: Supports multiple excitation control modes (such as static, semi-static, dynamic), which can quickly respond to grid voltage changes.
• High Integration: Integrates rectification, inversion, voltage stabilization and other functions, with small size and low installation space requirements.
• Remote Monitoring: Supports remote data collection and control of SCADA system, and can real-time monitor key parameters such as excitation current and rotor temperature.

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4. Structure and Composition

• Main Control Unit: Responsible for executing the excitation control algorithm and outputting excitation current commands.
• Power Electronic Converter: Converts DC power into DC current required for excitation.
• Communication Interface Module: Provides a communication interface with upper computer or protection device.
• Protection Relays: Built-in protection functions such as overvoltage, overcurrent and loss of excitation.
• Cooling System: Usually integrated with the generator’s cooling system, using cooling water for heat dissipation.

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5. Application Fields

• Hydropower Generator Sets: Such as generator sets above 600 MW in large hydropower stations like the Three Gorges Left Bank Power Station.
• High-Voltage Generators: Suitable for power stations with high voltage level above 500 kV.
• Power Distribution and Transmission: Used at key nodes that require high-precision voltage control.

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6. Installation and Maintenance

Installation

• Usually installed inside or beside the generator’s Excitation Box.
• The interface adopts a standard card-type design and plug-in connection, without complex wiring.
• The installation location must ensure good heat dissipation conditions, usually connected to the cooling water pipeline.

Maintenance

• Regular Inspection: Including cooling system inspection (no leakage, normal flow), power supply voltage inspection, and wiring tightening.
• Fault Diagnosis: Use HMI (Human-Machine Interface) or SCADA system to monitor excitation current, rotor temperature and alarm information.
• Spare Parts Replacement: Core power electronic components (such as IGBT) are usually equipped with hot-swappable spare parts for quick replacement.