NDCU-12C 64804031 Overview

The ABB Drive Control Unit NDCU-12C 64804031 is a drive control unit designed for the grid-side converter in wind turbine systems. It acts as the core controller, managing the IGBT-based converter to regulate the DC link voltage. It communicates with the rotor-side converter via a fiber optic link to ensure synchronized, high-performance power conversion. 

High-Resolution Measurement

Control Unit: Serves as the grid-side converter control unit in drive systems.

Measurement Inputs: Monitors two line currents and the DC link voltage for control.

Control Method: Utilizes the Direct Torque Control (DTC) method for IGBT management.

Communication: Links to the rotor-side converter via a dedicated fiber optic connection.

Core Function: Manages the DC link voltage regulation, typically set to line-to-line peak value.

Component Integration: Features the RMIO-12C board as part of its internal hardware architecture.

FAQ

Q1: What is the primary function of the NDCU-12C?

A1: It serves as the core control unit for the grid-side converter in a drive system.

Q2: How does it communicate with the main system controller?

A2: It communicates via a dedicated fiber optic link connected through an RDCO communication module.

Q3: What key electrical parameters does it measure?

A3: It measures two line currents and the DC link voltage for precise control.

Q4: What control method does it use for the converter?

A4: It utilizes the Direct Torque Control (DTC) method to manage the IGBT power semiconductors.

Q5: What is its main control objective?

A5: Its primary control objective is to regulate and maintain the DC link voltage.