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Yaskawa signs five-year marine supply contract with ABB

By on September 8, 2022 0

16 permanent magnet shaft generators to be installed for ABB Marine & Ports in dry cargo container ships

The Switch PMM2000M permanent magnet shaft generator has electric propulsion potential to accelerate the marine industry’s green transition. (Photo: Yaskawa Environmental Energy/The Switch)

Marine electrical transmission specialist Yaskawa Environmental Energy/The Switch has announced that it has signed a five-year global supply agreement with ABB Marine & Ports in Shanghai for its next-generation PMM2000M permanent magnet machines for use as shaft generators in large container ships. The first order for 16 machines, each with an output of more than 4 MW, will be installed as permanent magnet shaft generators (PMSG) for dry cargo container ships.

The PMM2000M direct-drive in-line switch is specially designed for large container ships powered by two-stroke engines, where the shaft generator output power is often 4-5MW. The PMM2000Ms over 5 meters in diameter has an operating speed of approximately 50-80 rpm. As a PMSG, it offers advantages such as low weight, high efficiency and high power density, as well as simple installation.

Benefits of PMSGs

The company originally marketed The Switch direct-drive PMMs for the wind industry, where the machines have dramatically improved turbine efficiency. It then entered the marine market with its marine PMSGs featuring 1000mm frame size targeting bulk, chemical and car carriers with single and dual propulsion. Later, he proposed the newly developed frame size of 1,500 mm machines for LNG carriers.

Vessels using PMSGs can reduce energy consumption and emissions, while increasing the amount of electricity available for other fuel-saving systems, such as air compressors for air lubrication of the hull, the company said. In addition, ships will not need an additional source of electrical power during long ocean voyages.

“It reduces the wear and tear on the generator sets because the generator sets can stay off,” said Risto Ahvo, key account management manager at Yaskawa Environmental Energy/The Switch. “Its mechanical simplicity also increases reliability and reduces maintenance requirements. Another characteristic is the low level of vibration.

The PMM2000M can be equipped to comply with the parameters of the EEXI and CII regulations coming into force in 2023.

Growth Opportunities

The stators will be produced in China and the other components in the EU. Due to their complexity, all unit assembly work will take place at The Switch’s Large Drive Test Center (LDTC) in Lappeenranta, Finland.

“We will then test the machines using ABB frequency converters to verify the electrical and thermal performance of all drive elements. This is typical at LDTC, where we can test solutions using our own or our customers’ drives and components,” Ahvo said. “The tests involve string tests and consecutive full-load tests. We will then ship the machines to China and also send engineers to supervise the installation.

The contract with ABB represents the first long-term supply agreement for Yaskawa Environmental Energy/The Switch targeting large merchant vessels. “It proves our agility in creating new machines adapted to different markets. The PMM2000M is designed from the ground up and, like all of our innovations, stands on its own merits,” commented Ahvo.

“The contract also takes us deeper into the Asian market,” he noted, “where there is a lot of growth potential given the wave of new orders in China, Korea and Japan thanks to the rates. freight of hot containers”.

Ahvo sees this type of supplier-supplier collaboration on energy efficient equipment as an optimal way to accelerate the green transition. “The PMM2000M has enormous potential as electric propulsion is gradually replacing conventional diesel-mechanical propulsion. With a PMM2000M propulsion motor, it is possible to achieve power up to 12 MW per propulsion line. propulsion lines, the power can reach almost 50MW, which is sufficient even for the largest vessels,” Ahvo said. “PMSGs are just the beginning.”