The electrical system renovation of the Rolls-Royce bow thruster (including tunnel side push TT, full rotation position side push AZ, permanent magnet motor side push PM-TT /AZ, etc.) is based on the original Helicon-X3 control platform and modular interface, aiming to solve the problems of low accuracy, slow response, frequent faults and weak linkage of the old analog/relay control. Through "digital upgrade + hydraulic-electrical linkage + intelligent monitoring + redundancy enhancement", it is adapted to the high-precision positioning and variable working condition requirements of port work vessels, offshore engineering vessels, cruise ships, etc. At the same time, it strictly follows the norms of classification societies and the original factory agreements to ensure stable compatibility and efficient operation after the transformation. The following is a full-process solution that can be directly implemented, covering core pain points, renovation directions, equipment selection, construction commissioning and fault avoidance for Rolls-Royce.

The electrical system renovation of Kawasaki servo propellers (including full-rotation propellers, fixed pitch/adjustable pitch CPP) aims to address the issues of low precision, slow response, frequent faults, and weak interlocking of outdated relays/analog control systems. This is achieved through "digital control upgrade + hydraulic-electrical interlocking + intelligent monitoring + redundant emergency reinforcement". It is adapted to the variable working conditions of engineering vessels, port work vessels, ferries, etc. At the same time, it strictly follows the standards of classification societies and the interface protocol with Kawasaki's original factory to ensure the stable compatibility of the system after the transformation. The following is a full-process solution that can be directly implemented, covering core pain points, renovation directions, equipment selection, construction commissioning and fault avoidance.

The modification of Kawasaki's head thrusters (including tunnel side push TTP, full rotation azimuth-direction side push AZP, permanent magnet motor side push AZP-PM series, etc.) takes the upgrade of the electrical system as the core and the optimization of hydraulical-mechanical coordination as the foundation, to meet the working conditions of berthing positioning and lateral ship movement for port work vessels, engineering vessels, offshore engineering vessels, and ocean-going cargo ships, etc. At the same time, we strictly follow the original hydraulic/mechanical interface specifications of Kawasaki and the requirements of CCS/ABS/LR classification societies to solve the core problems of low control accuracy, slow response, frequent faults, weak interactivity and high energy consumption of old equipment, and achieve the upgrade of "digitalization, intelligence, high reliability and low energy consumption". The following plan covers the core renovation dimensions, practical operation of subsystems, equipment selection, construction commissioning, and compliance acceptance. It is compatible with the mainstream bow thruster models of Kawasaki and can be directly implemented.

SMMC Controllable Pitch Propeller (CPP) for ships produced by Suchuan is a mainstream product in the field of special propulsion for ships in China. Its core advantage lies in the dynamic adjustment of the pitch of the blades, which is suitable for multi-condition navigation, improves control flexibility and energy efficiency. It is widely applied in military ships, engineering vessels, port operation ships, passenger ships, etc. The electronic control system of the CPP (Adjustable Pitch Propeller) thruster is the core for precise pitch adjustment, self-adaptation to working conditions, and navigation safety guarantee. The renovation mainly focuses on upgrading the old analog electronic control and relay control circuits, as well as optimizing the intelligence and reliability of the existing digital system. The core objective is to enhance the pitch control accuracy, achieve intelligent hydraulic-electrical linkage, strengthen fault early warning and emergency response capabilities, and at the same time meet the requirements of ship power integrated control and energy efficiency management

The modification of KAMEWA bow thrusters (including Ulstein silent side thrusters, tunnel side thrusters TT, and full-rotation azimutral side thrusters AZ series) takes the digital upgrade of the electrical system as the core, and the hydraulic and mechanical coordination and adaptation as the foundation. It deeply matches the original factory's technical characteristics of low noise, high thrust density, and DP positioning compatibility. At the same time, it adheres to the standards of CCS/ABS/LR classification societies and the original interface protocol of Rolls-Royce, solving the core problems of low control accuracy, slow response, frequent faults, weak interactivity and high energy consumption of old equipment, and achieving the upgrade goal of "precise control, intelligent monitoring, high reliability, low energy consumption and DP seamless linkage"

The electrical system transformation of MAN CPP (including Alpha/Beta/Gamma series, covering all tonnages of merchant ships, offshore engineering vessels, and ocean-going cargo ships, etc.) is based on matching the original mechanical and hydraulic core architecture of the factory, focusing on digital upgrade, closed-loop control reconstruction, and intelligent monitoring implementation. Address the pain points of the old system, such as low control accuracy, lagging response, frequent faults, weak interactivity, and high energy consumption. At the same time, strictly follow the CCS/ABS/LR classification society standards and the MAN original factory interface protocol, retaining its core characteristics of high thrust, high reliability, and adaptability to harsh working conditions. Achieve the upgrade goal of "precise control, intelligent operation and maintenance, high efficiency and energy conservation, and safety redundancy".

Shanghai Salvage Bureau of the Ministry of Transport Depulun BT Propeller Electrical System Upgrade

Singapore Ocean Shipping The BT electrical system renovation of the SILVA ship（KAWEMA）

新加坡PIL KOTA NEKAD Electrical system renovation of BT thruster（KAWASAKI）

Singapore PIL KOTA LAWA BT thruster Electrical Modification (Rolls-Royce) 新加坡PIL KOTA LAWA推进器电气改造