綠色革命！中國企業打造世界首創軸帶永磁發電系統

近日，江蘇源上船舶電氣有限公司（以下簡稱：源上船舶）聯合湖南中車尚驅電氣有限公司（以下簡稱：中車尚驅），共同研發的世界首款500kW船用軸帶永磁全分半發電系統，已經順利完成裝船并經過試航驗證。這一創新成果不僅響應了國家的“雙碳”戰略，更以“連接世界，造福人類”的使命，為船舶行業的綠色低碳轉型提供了一種高效的能源解決方案。

源上船舶自2008年成立以來，始終扎根于江蘇蘇州張家港經濟開發區，專注于船舶電氣領域的升級改造。在“一體多翼”的品牌戰略規劃下，公司經過十五年的專注發展和技術探索，特別是在2017年對高壓岸電設備和軸發產品的重點研發投入，以及2019年“江蘇源上船舶電氣有限公司”的成立，標志著公司在產品加服務的雙輪驅動發展模式上的深耕細作。源上船舶作為一家以電力電子和自動控制技術為核心的高新技術企業，致力于船舶自動化控制集成的開發與設計，其團隊在高壓岸電和軸發系統集成項目改造方面積累了豐富的經驗。

源上船舶軸帶永磁全分半發電系統為既有船舶提供了一種低成本、高效率、易于安裝且通用性強的綠色低碳升級改造方案。為實現不拆卸船舶螺旋槳傳動軸安裝軸帶永磁發電機，項目團隊在中車尚驅成熟的正向研發平臺基礎上，成功攻克了多項技術挑戰，包括分半軸套的安全可靠抱緊傳動軸、永磁轉子的分半模塊化設計、定子分半低諧波繞組設計、分半定子鐵心與水冷機座的可靠連接以及低熱阻傳熱等。在狹窄的船艙空間內，分半式永磁電機的安全、簡便安裝也是項目組攻克的難題之一。據統計，為解決這些問題，項目組開展進行了電磁、機械和熱管理等超過100個優化迭代方案的仿真，并召開了三十多次設計和工藝方案評審會議，確保最終方案能夠滿足高效節能、安全可靠、經濟性好、安裝簡便和通用性強等多重需求。

在對一艘超過5萬噸的散貨船進行改造后的實際測試中，與原有的輔機發電系統相比，新系統的軸帶永磁分半發電能夠每天節省約1.2噸輕燃油，且由于后期免維護，大大減少了發電機組的運行小時數和維護保養成本，預計兩年內即可收回改造成本。這一創新性的研發成果預示著它將對整個船舶行業的綠色低碳升級改造技術產生顛覆性影響，其推廣應用不僅將為船舶運輸行業帶來顯著的經濟效益，也將為全球減碳戰略目標的實現提供有力支持。

"Green Revolution! Chinese Enterprises Build the World's First Shaft Permanent Magnet Power Generation System, Leading the Low Carbon Transformation of the Shipping Industry"

Recently, Jiangsu Source Marine Electrical Co., Ltd. (hereinafter referred to as Source Marine) and Hunan CRRC Shangqu Electric Co., Ltd. (hereinafter referred to as CRRC Shangqu) jointly developed the world's first 500kW marine shaft permanent magnet fully split half power generation system, which has been successfully installed onboard and verified through sea trials. This innovative achievement not only responds to the national "Double-Carbon" strategy, but also serves the mission of "connecting the world for the benefit of humanity", providing an efficient energy saving solution for the green and low-carbon transformation of the shipping industry.

Since its establishment in 2008, Source Marine has always been rooted in Zhangjiagang Economic Development Zone in Suzhou city Jiangsu province China, focusing on the upgrading and retrofitting of the marine electrical field. Under the brand strategic plan of "One Body, Multiple Wings", the company has undergone fifteen years of focused development and technological exploration, especially the key R&D investment in high-voltage AMP and shaft generator productions in 2017， and the establishment of "Jiangsu Source Marine Electrical Co., Ltd." in 2019, marking the company's deep cultivation and meticulous work in the dual wheel drive development model of productions and services. As a high-tech enterprise with power electronics and automation technology as its core, Source Marine is committed to the development and design of ship automation control integration. Its team has accumulated rich experience in the renovation of high-voltage AMP and shaft generator system integration projects.

The marine permanent magnet split half shaft generation system provides a low-cost, high-efficiency, easy-to-install and versatile green and low-carbon upgrade and renovation solution for existing ships. In order to achieve the installation of a shaft permanent magnet generator without dismantling the ship's propeller, tail shaft and intermediate shaft, the project team has successfully overcome multiple technical challenges on the basis of CRRC Shangqu's mature forward research and development platform, including the safe and reliable clamping of the split half shaft sleeve to the intermediate shaft, the modular design of the permanent magnet rotor split half, the design of the stator split half low harmonic winding, the reliable connection between the split half stator core and the water-cooled machine base, and low thermal resistance heat transfer. The safe and easy installation of split type permanent magnet motors in narrow spaces is also one of the challenges that the project team has overcome. According to statistics, in order to solve these problems, the project team conducted simulations of over 100 optimization iterations in electromagnetic, mechanical, and thermal management, and held more than 30 design and process plan review meetings to ensure that the final plan can meet multiple requirements such as high efficiency, energy conservation, safety and reliability, perfect economy, easy installation, and strong universality.

In actual testing after the retrofitting a bulk carrier over 50000 DWT, compared with the original auxiliary generator system, the new system's shaft permanent magnet split half power generation can save about 1.2 tons of light fuel oil per day. Moreover, due to maintenance free operation in the later stage, the running hours and maintenance costs of the generator sets are greatly reduced. It is expected that the retrofitting cost can be recovered within two years. This innovative R&D achievement indicates that it will have a disruptive impact on the green and low-carbon upgrading and transformation technology of the entire shipping industry. Its promotion and application will not only bring significant economic benefits to the shipping industry, but also provide strong support for the achievement of global carbon reduction strategy goals.