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Article
Publication date: 12 March 2019

Prakash Chandra Sahu, Ramesh Chandra Prusty and Sidhartha Panda

The paper has proposed to implement gray wolf optimization (GWO)-based filter-type proportional derivative with (FPD) plus (1+ proportional integral) multistage controller…

Abstract

Purpose

The paper has proposed to implement gray wolf optimization (GWO)-based filter-type proportional derivative with (FPD) plus (1+ proportional integral) multistage controller in a three-area integrated source-type interlinked power network for achieving automatic generation control.

Design/methodology/approach

For analysis, a three area interconnected power system of which each area comprises three different generating units where thermal and hydro system as common. Micro sources like wind generator, diesel generator and gas unit are integrated with area1, area2 and area3 respectively. For realization of system nonlinearity some physical constraints like generation rate constraint, governor dead band and boiler dynamics are effected in the system.

Findings

The supremacy of multistage controller structure over simple proportional integral (PI), proportional integral, derivative (PID) and GWO technique over genetic algorithm, differential evolution techniques has been demonstrated. A comparison is made on performances of different controllers and sensitivity analysis on settling times, overshoots and undershoots of different dynamic responses of system as well as integral based error criteria subsequent a step load perturbation (SLP). Finally, sensitive analysis has been analyzed by varying size of SLP and network parameters in range ±50 per cent from its nominal value.

Originality/value

Design and implementation of a robust FPD plus (1 + PI) controller for AGC of nonlinear power system. The gains of the proposed controller are optimized by the application of GWO algorithm. An investigation has been done on the dynamic performances of the suggested system by conducting a comparative analysis with conventional PID controller tuned by various optimization techniques to verify its supremacy. Establishment of the robustness and sensitiveness of the controller by varying the size and position of the SLP, varying the loading of the system randomly and varying the time constants of the system.

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Article
Publication date: 17 July 2020

Sonalika Mishra, Suchismita Patel, Ramesh Chandra Prusty and Sidhartha Panda

This paper aims to implement a maiden methodology for load frequency control of an AC multi micro-grid (MG) by using hybrid fractional order fuzzy PID (FOFPID) controller…

Abstract

Purpose

This paper aims to implement a maiden methodology for load frequency control of an AC multi micro-grid (MG) by using hybrid fractional order fuzzy PID (FOFPID) controller and linear quadratic Gaussian (LQG).

Design/methodology/approach

The multi MG system considered is consisting of photovoltaic, wind turbine and a synchronous generator. Different energy storage devices i.e. battery energy storage system and flywheel energy storage system are also integrated to the system. The renewable energy sources suffer from uncertainty and fluctuation from their nominal values, which results in fluctuation of system frequency. Inspired by this difficulty in MG control, this research paper proposes a hybridized FOFPID and LQG controller under random and stochastic environments. Again to confer viability of proposed controller its performances are compared with PID, fuzzy PID and fuzzy PID-LQG controllers. A comparative study among all implemented techniques i.e. proposed multi-verse optimization (MVO) algorithm, particle swarm optimization and genetic algorithm has been done to justify the supremacy of MVO algorithm. To check the robustness of the controller sensitivity analysis is done.

Findings

The merged concept of fractional calculus and state feedback theory is found to be efficient. The designed controller is found to be capable of rejecting the effect of disturbances present in the system.

Originality/value

From the study, the authors observed that the proposed hybrid FOPID and LQG controller is robust hence, there is no need to reset the controller parameters with a large change in network parameters.

Details

World Journal of Engineering, vol. 17 no. 5
Type: Research Article
ISSN: 1708-5284

Keywords

Content available
Article
Publication date: 29 June 2020

Pooja Singh Negi and Ramesh Chandra Dangwal

Various scams and swindles in banks demand effective supervision and competent workforce, as it involves with workplace accountability and undertaking customer support…

Abstract

Purpose

Various scams and swindles in banks demand effective supervision and competent workforce, as it involves with workplace accountability and undertaking customer support services. The purpose of this paper is to examine the managerial effectiveness of selected public, private and foreign banks in India.

Design/methodology/approach

In total, 467 questionnaires from (middle and top-level) managers of (five public, five private and five foreign banks) fifteen banks have been considered. The descriptive statistics, t-test and ANOVA are used to differentiate each sector of banks.

Findings

The significant difference denoted in terms of managerial effectiveness among banks. The results revealed that managers of public banks are action-oriented and receptive to feedback, whereas the manager of private sector banks embodies self-disclosure and perceptiveness. The correlates, namely, action-orientation, self-disclosure and receptivity to feedback evident significant among foreign banks.

Practical implications

The consideration and application of such correlates would surely help managers, decision-makers and practitioners to enhance their effectiveness. Human resource professionals can use these results to develop programmes and policies for better management.

Originality/value

The study is imperative as it compares the behaviour of managers of public, private and foreign banks individually. The findings demonstrate that correlates of managerial effectiveness significantly differ among the banks.

Details

PSU Research Review, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2399-1747

Keywords

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Article
Publication date: 14 November 2016

Anurag Pandey, Ramesh Chandra Keshri and Yogesh Kumar

This paper aims to develop a good quality pork sandwich spread incorporated with different levels of antioxidant mixture [butylated hydroxyanisole (BHA) + butylated…

Abstract

Purpose

This paper aims to develop a good quality pork sandwich spread incorporated with different levels of antioxidant mixture [butylated hydroxyanisole (BHA) + butylated hydroxytoluene (BHT); 1:1] and to assess sensory, physico-chemical and microbiological properties of frozen product during storage.

Design/methodology/approach

Three levels of antioxidant mixture (BHA + BHT; 1:1) i.e. 100, 200 and 400 ppm were tried, and the product was compared for physico-chemical, microbiological and sensory properties along with the control during frozen storage (−18 ± 1°C).

Findings

pH and water activity decreased significantly (p < 0.05), whereas water holding capacity, 2-thiobarbituric acid reacting substances value, total plate count and psychrotrophic count increased significantly (p < 0.05) during storage period. No coliform, yeast and molds were detected throughout the study period. There was non-significant (p < 0.05) effect of antioxidant treatment on the scores of colour, texture, juiciness, adhesion ability and spreadability, but scores for flavour and overall acceptability significantly (p < 0.05) increased.

Research limitations/implications

Pork sandwich spread is envisaged to help in providing nutrition to a large section of needy population and will add a new dimension to the convenience foods.

Originality/value

Antioxidant mixture (BHA + BHT, 1:1) treatment improved the sensory and microbiological properties of pork sandwich spread at frozen storage (−18 ± 1°C). At the end of storage period (60 days), the pork sandwich spread was found safe for human consumption. Hence, BHA and BHT antioxidant mixture could be used to improve quality attributes of meat products during storage.

Details

Nutrition & Food Science, vol. 46 no. 6
Type: Research Article
ISSN: 0034-6659

Keywords

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Case study
Publication date: 29 March 2019

Meenakshi Sharma

The case concerns a situation where a manager finds that a candidate for the new position of supervisor for the Sports and Recreation Centre in the housing colony of the…

Abstract

The case concerns a situation where a manager finds that a candidate for the new position of supervisor for the Sports and Recreation Centre in the housing colony of the company is someone with whom she has a troubling history. She approaches the General Manager, HR and shares the details of her experiences and her concerns about this person's candidature, requesting that the candidate’s case not be processed further. She presents it as a serious matter with a potential threat to vulnerable women and young girls as the position involves close engagement with the residents of the colony. She provides details of her first-hand experience and familiarity with the candidate to build credibility for her position. However, the boss dismisses her concerns, reminding her that it was all in the past and advises her to move on. She requests him to consult the members of the Executive Committee of the Residents’ Association before taking a decision. He agrees to do so and sends an email to the team. She finds that he treats her concerns summarily in his email and frames the issue very differently from her, presenting a simple choice between two options. The HR manager is worried and wonders if there is anything she can do in the matter. The context would help generate discussion relating to persuasion, framing and managerial communication challenges.

Details

Indian Institute of Management Ahmedabad, vol. no.
Type: Case Study
ISSN: 2633-3260
Published by: Indian Institute of Management Ahmedabad

Keywords

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Book part
Publication date: 2 September 2019

Abstract

Details

The Impacts of Monetary Policy in the 21st Century: Perspectives from Emerging Economies
Type: Book
ISBN: 978-1-78973-319-8

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Book part
Publication date: 9 March 2021

Abstract

Details

Global Tariff War: Economic, Political and Social Implications
Type: Book
ISBN: 978-1-80071-314-7

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Book part
Publication date: 13 May 2019

Abstract

Details

The Impact of Global Terrorism on Economic and Political Development
Type: Book
ISBN: 978-1-78769-919-9

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Article
Publication date: 1 April 2005

Jim Love and Ramesh Chandra

The purpose of this paper is to test the export‐led growth hypothesis for South Asia, a diverse region consisting of one large country, India, surrounded by a number of…

Abstract

Purpose

The purpose of this paper is to test the export‐led growth hypothesis for South Asia, a diverse region consisting of one large country, India, surrounded by a number of medium and small countries such as Pakistan, Bangladesh, Sri Lanka, Nepal, Bhutan and Maldives.

Design/methodology/approach

To test this, the study employs cointegration and error‐correction modelling, using data from the International Financial Statistics of the IMF.

Findings

The study produces fairly mixed results, and does not find any conclusive evidence in favour of export‐led growth. While India, Maldives and Nepal exhibit export‐led growth, Bangladesh and Bhutan show the opposite result of growth‐led exports. In Pakistan and Sri Lanka no causality in either direction was found. The mixed nature of the results is further confirmed by taking a common time period since 1980.

Practical implications

South Asia is one of the poorest regions of the world; so success or otherwise of export‐led growth is of great interest for policy purposes. For example, the finding of export‐led growth for the largest economy of the region, India, is particularly heartening as, by opening up its markets further to the other countries of the region, it can fuel growth in the entire region.

Originality/value

This study tries to fill an important gap in the literature as it is the first comprehensive study of the region as a whole.

Details

Journal of Economic Studies, vol. 32 no. 2
Type: Research Article
ISSN: 0144-3585

Keywords

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Book part
Publication date: 13 May 2019

Abstract

Details

The Impact of Global Terrorism on Economic and Political Development
Type: Book
ISBN: 978-1-78769-919-9

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