Irfan Ahmed Halepoto ¹, Anwar Ali Sahito ², Mansoor Soomro ², Sania Khaskheli ¹, Bhawani Shankar Chowdhry ¹

Affiliations
1 Department of Electronic Engineering, Mehran UET, Jamshoro, Sindh, PK
2 Department of Electrical Engineering, Mehran UET, Jamshoro, Sindh, PK

Abstract

Objectives: For the efficient and reliable operation, substation IEDs status must be monitored consistently and event information must be disseminated timely between substation levels. Methods/Statistical Analysis: Traditional power grid substations are facing infrastructural, operational, automation, systematic, monitoring and control issues. The smart grid concept and advancement in instrumentation and automation has open up the potential of substation automation system through which substation automation, intelligence and control is achieved, but devices interfacing, interoperability, time critical information exchange, substation devices status monitoring and data dissemination type issues are still in research phase. Findings: In this research work, substation bay level IEDs time critical data information dissemination model is designed by IEC 61850 standard using publisher subscriber communication. Based on IEC 61850 substation devices data object and interfacing models, a novel substation communication service mapping is proposed for the time critical data information dissemination. The proposed communication service mapping is based on abstract service communication interface technique by which an object oriented data and object models and communication service is directly mapped at Ethernet data link layer. Application/Improvements: To disseminate the data message using the proposed communication service an IEEE 802 based Ethernet frame structure is designed and configured using abstract syntax notation one technique.

Keywords

Data Dissemination, IEC 61850, IEEE Ethernet Frame, Publisher-Subscriber Communication, Substation.

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Irfan Ahmed Halepoto ¹, Sania Khaskheli ¹

Affiliations
1 Department of Electronic Engineering, Mehran University of Engineering and Technology,Jamshoro, PK

Abstract

Objectives: From an industry specific perspective, there is continuous pressure on manufacturing companies to reduce the operating expenditure by reducing the electricity cost by developing the energy efficient equipment and products especially conveyor systems. Methods/Statistical Analysis: Conveyor belts are the material handling equipment that is widely used in industry to move the material from the one place to another or from one process to next process. Conveyors are generally driven with electric motors. Conveyor systems are the one of the major consumers of electricity industries, which consumes up to 40% electricity of the total operating cost, while the remaining 60% is due to operational costs and maintenance. Findings: In this work, efficiency of a conveyor system is evaluated by integrating all the factors that have an influence on the electricity costs of the conveyor system. Using variable speed drive mechanism, an energy efficient conveyor system is developed by physically modeling the speed of the belt and conveyor loading dynamics mechanism under no load, marginally loaded and full loaded conditions. For the energy efficient conveyor system, different start-up of conveyor methods are evaluated as a baseline reason of generating the motor torque in comparison to rated voltage as an optimal energy management tool to develop a relationship across the power consumption, conveyor belt speed and belt loading dynamics. Application/Improvements: The design of energy efficient conveyor system model by controlling multiple drive units in industrial units.

Keywords

Conveyor Loading Dynamics, Conveyor System, Energy Efficiency, Variable Speed Drive.

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