scholarly journals Design and Implementation of a Multi-Phase Induction Machine Operating in generating Mode for Power Generation

2015 ◽  
Vol 131 (10) ◽  
pp. 28-33
Author(s):  
Alok Kumar ◽  
K.B. Yadav
Author(s):  
Alok Kumar Mohanty ◽  
K B Yadav

<em>Multi-phase machines are considered serious contenders as compared to the three phase machines for variable applications in generating mode. </em><em>This paper presents the transient performance analysis of a multi-phase induction machine operating in six-phase mode for power generation. In this paper the simulation and experimental analysis of a six-phase machine in generating mode have been made. The simulations are made and the machine functionality was investigated during no-load and when subjected to different types of loads. Experimental results are provided to confirm the ability of these models to represent during no load as well as during load period and the result were found to be satisfactory for power generation</em>.


Author(s):  
Kurt Plotts ◽  
Evangelos Diatzikis

Siemens has been on the cutting edge of the power generation business for over a century and has been providing diagnostics systems design and implementation since the early 1980s. Siemens Power Diagnostics® Services is designed to maximize plant performance, availability and profitability. Engineering knowledge, combined with the use of sophisticated tools, provides trending and analysis capabilities to address a broad range of operating needs specific to each customer. The goal of Power Diagnostics® is to enhance Siemens assistance to our customers through the detection of impending operational problems thereby helping to minimize unplanned outages and maximize power generation availability. A variety of new technologies are being harnessed to further this goal. A survey and discussion of these technologies will be the goal of this paper. Some of the projects discussed will be; Advances in the Power Plant Automated Diagnostics Systems, Blade Vibration Monitor (BVM), Fiber Optic Vibration Monitor (FOVM), and the Radio Frequency Monitor (RFM). The development and verification phases of research projects have often been conducted at customer sites. Many aspects of these technologies are new and will be of interest to gas turbine engineers as they are not widely applied yet. It is hoped that the reader will gain a new appreciation for the scope of modern diagnostic methods for power generation systems.


Author(s):  
David Collier ◽  
Paula Orr

Contemporary approaches to the design and implementation of consultation programmes have come a long way from the days of ‘decide-announce-defend’. However success in expanding involvement and combining different participation methods, especially within a complex multi-phase programme, still poses major challenges. This paper discusses one of them: processing the much increased volume and variety of contributions received and then combining them with other forms of input in a rigorous, balanced, auditable and transparent manner. It is no longer sufficient, if indeed it every really was, for someone simply to work their way through a stack of comments with a highlighter, altering a draft text where he or she judged that clarification was required. We illustrate the nature of the challenge and the response of the Environment Agency of England and Wales by considering some specific issues, including the following. • Applicability of systematic approaches to text and transcript analysis; • Use of qualitative data management systems; • Transparency vs confidentiality; • Inconsistencies between stakeholder/public concerns and regulatory boundaries; • Integration of different types of input; • Deciding what to take into account; judging validity and weight; • Implications for quality management, documentation and resources; • Approaches to programme evaluation.


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