Search results

1 – 2 of 2
Article
Publication date: 17 March 2016

Trung-Son Nguyen, Tung Le Duc, Son Thanh Tran, Jean-Michel Guichon and Olivier Chadebec

To synthesize equivalent circuit obtained from reduced order model of large scale inductive PEEC circuits.

Abstract

Purpose

To synthesize equivalent circuit obtained from reduced order model of large scale inductive PEEC circuits.

Design/methodology/approach

This paper describes an original approach for reducing and synthesizing large parasitic RLM electrical circuits coming from inductive Partial Element Equivalent Circuit (PEEC) models. The proposed technique enables the re-use of the reduced order model in the time domain circuit simulation context.

Findings

The paper shows how to use a synthesis method to realize an equivalent circuit issued from compressed PEEC circuits.

Originality/value

The coupling between methods PEEC and a compressed method as Fast Multipole Method (FMM) in order to reduce time and space consuming are well-known. The innovation here is to realise a smaller circuit equivalent with the original large scale PEEC circuits to use in temporal simulation tools. Moreover, this synthesis method reduces time and memories for modelling industrial application while maintaining high accuracy.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering , vol. 35 no. 3
Type: Research Article
ISSN: 0332-1649

Article
Publication date: 13 February 2017

Chinh Luu, Jason Von Meding and Sittimont Kanjanabootra

One of the main strategic targets in the national power development plan of Vietnam is to give priority to hydropower. However, there is evidence that the most “at risk” in…

Abstract

Purpose

One of the main strategic targets in the national power development plan of Vietnam is to give priority to hydropower. However, there is evidence that the most “at risk” in Vietnamese society have, to date, broadly failed to benefit from hydropower development but rather have become more vulnerable. This paper aims to broaden the perspective of decision makers (government agencies, investors and banks) in the hydropower industry regarding the environmental and social impacts of unrestrained development and the critical need to not only reduce disaster risk for communities but also provide a sustainable model for Vietnam’s energy demand.

Design/methodology/approach

This position paper presents a critique of public policy in Vietnam related to hydropower industry, undertaken alongside an analysis of socio-economic community resilience and disaster risk reduction literature.

Findings

Small hydropower investment must be delayed until measures are put in place to ensure that multi-stakeholder risk is a central component of the investment dialogue. Current pricing policies are not aligned with the hydropower development management, and this erects barriers to environmentally and socially conscious decision-making.

Practical implications

This paper suggests that the development of small hydropower projects must be curtailed until new measures are put in place. This has practical implications for investors, policy makers and residents of affected areas. The authors argue for a significant shift in government strategy toward building resilience as opposed to growth and profit at any cost.

Social implications

Conscious of Vietnam’s energy demands and development goals, this paper investigates the context of increasing disaster risk and ecological pressures, as well as social injustice relating to the hydropower industry. This kind of analysis can support future efforts to reduce disaster risk and the vulnerability of marginalized groups in Vietnam.

Originality/value

The authors present a comprehensive review of Vietnamese hydropower from a disaster resilience perspective and provide analysis that will be useful in further research in this emerging area.

Details

International Journal of Disaster Resilience in the Built Environment, vol. 8 no. 1
Type: Research Article
ISSN: 1759-5908

Keywords

1 – 2 of 2