ASYNOPSISONPOWER & ENERGY MONITORING

SUBMITTED IN THE PARTIAL FULFILLMENT FOR THE AWARD OFTHE DEGREE OF

BACHELOR OF TECHNOLOGYINELECTRICAL ENGINEERING

SESSION:-2014-2015IN THE GUIDENCE OF

Submitted to:Submitted by: Mr. Harpreet Singh Ashok Kumar Verma [Hod. of Electrical Department] (11eiaee013) INSTITUTE OF ENGINEERING AND TECHNOLOGYNORTH EXTENSION , M.I.A, ALWAR (301030)

INTRODUCTIONThe aim of the power system has always been to supply electrical energy to customers. Energy Auditmeans the verification, monitoring and analysis of use of energy including submission of technical report containing recommendations for improvingenergy efficiencywith cost benefit analysis and an action plan to reduce energy consumption.Energy auditis an important process to be carried out for energy conservation.

The Basic Energy Monitoring ModelsAIM The aim of this work is to develop a method that is suitable for efficient monitoring of power qualities in sustainable energy system like solar energy etc.

CAUSES OF POWER QUALITY PROBLEMSInternal causes Approximately 80% of electrical problems originate within a business facility. Potential culprits may include large equipments start or shut down, improper wiring and grounding, overloaded circuits or harmonics.External causes About 20% of power quality problems originate with the utility transmission and distribution system .The most common cause is a lightning strike; other possibilities include equipments failure, vehicle accidents, weather conditions, neighboring business and even normal operation of utility equipments.OBJECTIVES OF POWER & ENERGY MONITORINGThe objectives of a monitoring program determine the choice of measuring equipments and triggering thresholds. Proactive approach: This approach of monitoring is intended to characterize the system performance. A power producer may find this objective important because this helps to understand the system performance and then be able to match the system performance with customer needs. Reactive approach: This kind of monitoring is intended to characterize a specific problem. Many services solve power quality problems by performing short term monitoring at specific customers or at different loads.

POWER QUALITY MONITORS Portable monitor Permanently installed full system monitor Advantages Increased Comfort Cost Savings Environmental Impact Ensures power system reliability. Identify the source and frequency of events. Helps in the preventive and predictive maintenance. Determine the need for mitigation equipments. Reduction of energy expenses and risk avoidances. Process improvements monitoring systems allows to identify the most sensitive equipments and install power conditioning systems where necessary.APPLICATION For Home Energy Audit Industries Energy AuditCONCLUSIONPower qualities of sustainable energy are also affected due to increasing sensitivity of the equipments and devices used by the customers, and need proper monitoring and analysis for mitigation purposes. Traditional monitoring methods are based on the RMS measurements and constrained by their accuracies. The use of such advanced techniques makes the power quality monitoring system more accurate and the power system more reliable. FUTURE OF POWER QUALITYIn 10 years time, it may well be that equipment has become fully compatible with the power supply and does not cause any disturbance to the customers. However, there is no indication that this will happen soon. So right now the emphasis is on mitigation equipments and on intelligent power quality monitoring systems which enables the automatic classification and analysis of the measured data.References[1] D&R International Ltd, 2010 Building Energy Data Book.: U.S Departement of Energy DOE, 2011. [2] J.S.Haberl, M. Lui, J. Houcek and A. Athar David E. Claridge, "Can You Achieve 150% of Predicted Retrofit Savings: Is It Time for Recommissioning?," Washington, D.C, no. Vol. 5, pp. 73-87, summer 1994. [3] Konstantinos D. Patlitzianas, Konstantinos Iatropoulos and John Psarras Haris Doukas, "Intelligent building energy management system using rule sets," Building and Environment, Oct 2006.