Off-normal Situations Related to the Operation of the Electron-VM Oxygen Generation System aboard the International Space Station

Kurmazenko, E. A.; Samsonov, N. M.; Gavrilov, L. I.; Farafonov, N. S.; Belavencev, Ju. E.; Pavlova, N. V.; Proshkin, V. Ju.; Romanov, S. Ju.; Geleznyakov, A. G.; Ryabkin, Aleksandr M.; Lyubimov, G. A.; Kirushin, O. V.

doi:10.4271/2005-01-2803

Cited by 7 publications

(2 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Russian electrolytic oxygen generator uses strong corrosive lye as the electrolyte, it has caused great difficulties in on-orbit maintenance and replacement of parts [18]. The US electrolytic oxygen generator in the ISS adopts the technical solution of solid polymer electrolyte (SPE) water electrolysis [19], and the US electrolytic oxygen generator adopts a standard cabinet-style installation method to facilitate on-orbit maintenance and replacement. The EOGS in China's future space station adopts the same method as the United States.…”

Section: Introductionmentioning

confidence: 99%

UKF-Based State Estimation for Electrolytic Oxygen Generation System of Space Station

et al. 2021

Applied Sciences

View full text Add to dashboard Cite

Electrolytic oxygen generation system (EOGS) is the only system that can provide oxygen for astronauts in a physicochemical regenerative way in a long-term manned spacecraft. In order to ensure that the astronauts in the cabin can obtain a continuous and enough oxygen supply, it is necessary to carry out real-time condition monitoring and fault diagnosis of the EOGS. This paper deals with condition monitoring and fault diagnosis of the EOGS. Firstly, the dynamic model of the system is established based on the principle electrolysis for actual oxygen production system and the state observer of the system has been designed by using unscented Kalman filter (UKF). The total pressure in the cabin and the partial pressure of oxygen in the electrolytic cell can be observed. Then, considered the actual conditions of the manned space mission with one more astronaut, i.e., 3 astronauts, the simulation experiment is carried out. The simulation results show that the method can effectively estimate the system state, and it is of great significance to ensure the normal operation of the electrolytic EOGS system in the space station.

show abstract

Section: Introductionmentioning

confidence: 99%

UKF-Based State Estimation for Electrolytic Oxygen Generation System of Space Station

et al. 2021

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…Various countries have developed differing atmosphere revitalization systems, but they share the same basic system configuration [1][2][3] . The current system used aboard the International Space Station uses a chemical reaction to separate carbon dioxide from cabin air and produces lithium hydroxide as a waste byproduct.…”

Section: Introductionmentioning

confidence: 99%