Výsledky vyhledávání - "Antti Piippo"

Akademický článek

Experimental Study on the Effect of Calcium Aluminate Cement Addition on the Drying and Physical Properties of Refractory Castables Containing Colloidal Silica

Autor: Antti Piippo, Kyösti Ruotanen, Ville-Valtteri Visuri, Niko Poutiainen, Eetu-Pekka Heikkinen

Publikováno v: Materials, Vol 17, Iss 21, p 5308 (2024)

Colloidal silica-bonded castables offer several advantages compared to traditional calcium aluminate cement (CAC)-bonded castables, including lower torque values during mixing, superior drying properties, and a lower CaO content. Nevertheless, inform

Externí odkaz: https://doaj.org/article/864ff2742e5c4e0bb454a27d0204bfb9

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Combination of voltage model and high-frequency signal injection for sensorless permanent magnet synchronous motor drives

Autor: Antti Piippo, Marko Hinkkanen, Jorma Luomi

Publikováno v: Aalto University

The paper proposes a method for the rotor speed and position estimation of permanent magnet synchronous motors, applicable in a wide speed range including standstill. A modified voltage model is used at high speeds, and it is combined with a high-fre

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::f672f24393b172d12d73d32dca2fa56d
https://research.aalto.fi/en/publications/47bd4111-15f5-4431-8ffc-55bb7073a8ba

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