2012-05-21 - The vast majority of ships and floating platforms run an onboard 60Hz power supply and require a frequency converter to connect to local 50Hz supplies. Armada D1 vessel, located off Mumbai cost in India, has a different setup. It will operate mostly from gas turbine generators at 50Hz, while some of the ship's equipment will need a 60Hz supply. ABB’s state-of-the-art PCS100 static frequency converter (SFC) will supply the required 60Hz loads. The product's reliability, small footprint and high serviceability make it an ideal solution for this application.
The product's reliability, small footprint and high serviceability were the key factors in the customer's decision making process. The serviceability - a major advantage for any offshore application - is guaranteed by the modular nature of the SFC.
The tropical climate imposed additional requirements on the thermal design of the e-house. Accumulation of heat in an enclosure is potentially damaging to electrical and electronic devices. Overheating and humidity can shorten the life expectancy of electrical components and lead to unreliability. ABB’s design team made sure that environment inside the e-house is carefully controlled.
The SFC (16 module pairs of inverters and rectifiers in six converter cabinets) is configured to share the load with two diesel generator supplies. The implementation is straightforward with no additional synchronizers needed due to the advanced generator emulation control feature of the product. The built-in n+1 redundancy enhances reliability and availability: If one module shuts down, the system continues to operate with slightly reduced but still sufficient capacity for the application. Bumi Armada was impressed with the features of the PCS100 SFC and its ability to meet the demanding requirements of this application. This is a new reference for the PCS100 SFC that marks the continued success of the technology in the FPSO arena.