Correlation between Reliability and Weather Scenario: In Perspective of Bangladesh Power System

Abstract

This paper presents the correlation between the reliability and the weather scenario of Bangladesh Power System (BPS). Reliability of the power system is one of the major features of power quality. The variation of electrical demand above its base value is its common characteristic. The weather dependent variation of demand, especially where the weather is severe in nature, requires a significant reserve margin to ensure an acceptable level of reliability of the generation system. In Bangladesh, a significant difference in demands of winter and summer is generated due to weather variation. As a result the utility has to ensure an additional seasonal generation reserve capacity to maintain an acceptable level of reliability. This paper determines the correlation between the weather variables, namely temperature and relative humidity, and the reliability of Bangladesh Electricity Network. It also investigates the additional generation requirement during summer season to maintain an acceptable reliability level.