4S Platform

Goldwind’s new 4S platform capitalises on the scalability and supply chain of the 3S platform

Goldwind’s 4S Permanent Magnet Direct-Drive (PMDD) wind turbine capitalises on the scalability and supply chain of the 3S platform to bring turbines with a rated power range between 4.0 and 4.2MW. The latest Goldwind turbine for international markets is designed for wind class IIA and features rotor diameters up to 136 meters.

Scalable capacity. Through the scalable nature of the 4S platform, the rated output of the turbine can be scaled from 4.0MW to 4.2MW with a rotor diameter up to 136 metres. The adaptive nature of the 4S platform for low and ultra-low wind speeds, means the turbine can be extensively applied to projects with average wind speeds ranging from 5.5 to 8.5 m/s.

Scalable rated power and group control systems are two key elements for maximum energy production. With these two site-adaptive technologies combined, turbines synchronise closely with each other to compensate for any loss in total power output. The two technologies can also be utilised for decreasing noise emissions, to operate in special wind conditions, harsh terrain and extreme high/low temperatures.

Smart sensing. The 4S platform’s key components are monitored by multiple strategic sensors that enable predictive diagnostics and precision control.

Smart control. Based on Goldwind’s big data analysis of tens of thousands of installed direct-drive turbines and more than 20 years of wind energy expertise, Goldwind has partnered with Det Norske Veritas and Germanischer Lloyd (DNV-GL) and Energy research Centre of the Netherlands (ECN) to develop the most advanced optimised control algorithms for maximum energy capture.

Structured design. In addition to Goldwind’s overall optimised design features for unique operating conditions, the 4S’ modular approach features shared blade molds, a single blade erection method, and modular generator technology – all of which support efficiencies in logistics, installation, operations and maintenance over the life of the turbine.

Double-circuit design. Goldwind’s double-circuit design architecture for the 4S PMDD generator enables continued limited operation in the event of a circuit failure until a service technician is able to perform repairs. This partial power output approach results in more energy capture for the customer during periods in which the turbine would otherwise be out of service.