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1 – 2 of 2The power electronic converter is used for the satisfaction of reactive power demand of induction generator, when grid-tied. This paper aims to present an application of STATCOM…
Abstract
Purpose
The power electronic converter is used for the satisfaction of reactive power demand of induction generator, when grid-tied. This paper aims to present an application of STATCOM to reduce inrush transient caused by the connection of a squirrel-cage induction generator (SCIG) to the grid.
Design/methodology/approach
The power generation system consists of an uncontrolled prime mover, a SCIG and a power electronic converter connected to the grid. The three-phase Neutral Point Clamped (NPC) converter works as a STATCOM to satisfy a reactive power demand of the generator. A control scheme of STATCOM uses the x-y reference frame rotating synchronously with grid voltage vector and the p-q instantaneous power theory to calculate q component of grid power.
Findings
It is shown that the parallel converter, which works as a reactive power compensator allows decreasing transients during a grid connection of the induction generator.
Research limitations/implications
Transients during a grid connection of the induction generator are only partially decreased.
Practical implications
It is needed to compensate for the reactive power of a SCIG. The NPC converter works as a STATCOM. The converter partially reduces grid transients during generator connection. The laboratory tests are demonstrated by connection 7.5 kW induction generator to 8 kVA transformer.
Originality/value
The paper presents the mitigation of grid transients during connection of induction generator with the power electronic converter working as reactive power compensator.
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Michał Wilczewski, Zbigniew Wróblewski, Mariusz Wołońciej, Arkadiusz Gut and Ewelina Wilczewska
The purpose of this qualitative study is to explore the role of spirituality, understood as a personal relationship with God, in missionary intercultural experience.
Abstract
Purpose
The purpose of this qualitative study is to explore the role of spirituality, understood as a personal relationship with God, in missionary intercultural experience.
Design/methodology/approach
We conducted narrative interviews with eight Polish consecrated missionaries in Argentina, Bolivia, Ecuador, Peru and Paraguay. We used thematic analysis to establish spirituality in missionary experience and narrative analysis to examine sensemaking processes.
Findings
Missionary spirituality was defined by a personal relationship with God as a source of consolation, psychological comfort, strength to cope with distressing experiences, and Grace promoting self-improvement. It compensated for the lack of family and psychological support and enhanced psychological adjustment to the environment perceived as dangerous. Spirituality helped missionaries deal with cultural challenges, traumatic and life-threatening events. Traumatic experiences furthered their understanding of the mission and triggered a spiritual transition that entailed a change in their life, attitudes and behavior.
Research limitations/implications
Comparative research into religious vs nonreligious individual spirituality in the experience across various types of expats in various locations could capture the professional and cultural specificity of individual spirituality. Research is also needed to link spirituality with expat failure.
Practical implications
Catholic agencies and institutions that dispatch missionaries to dangerous locations should consider providing professional psychological assistance. Narrative interviewing could be used to enhance missionaries' cultural and professional self-awareness, to better serve the local community. Their stories of intercultural encounters could be incorporated into cross-cultural training and the ethical and spiritual formation of students and future expats.
Originality/value
This study captures a spiritual aspect of intercultural experience of under-researched expats. It offers a model of the involvement of individual spirituality in coping in mission.
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