NDLI: Effect of ambient temperature variations on estimation of proximity of the voltage collapse point

Content Provider	IET Digital Library
Author	Burle, Trinadha Chintapalli, V. V. S. Bhaskara Reddy
Abstract	Due to deforestation, greenhouse gases and increasing air conditioner systems, the temperatures are changing drastically and the effects are prominent in summer and winter seasons. These ambient temperature variations are affecting the transmission system parameters and also the voltages at various buses. Changes in the transmission line parameters have non-negligible impact on system performance and present Energy Management applications are not considering these temperature variations in the power system state estimation. In this paper, impact of temperature variations on the power system Voltage Stability assessment is considered. Voltage stability assessment methods make use of the load flow results. Load flow results without considering the temperature variations are inaccurate in the real-time and leading to the erroneous results in the voltage stability assessment. In view of this, studies have been carried out on IEEE 30-bus, 118-bus and 300-bus systems, incorporating the seasonal temperature variations on various types of conductors, and also demonstrated the impact with conventional and ZIP type load models. In this paper, four voltage stability indices NLVSI, L m n , FVSI and VCPI(power) are used for identifying the proximity of voltage collapse point, critical line, critical bus voltage, critical bus angle, total system active power loss, total system reactive power loss etc.
Starting Page	6382
Ending Page	6396
Page Count	15
ISSN	17518687
Volume Number	14
e-ISSN	17518695
Issue Number	Issue 25, Dec (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2020.0270
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/14/25
Journal	IET Generation, Transmission & Distribution
Publisher Date	2020-11-18
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	A.c. Transmission Accurate Behaviour Air Conditioner System Air Conditioning Air Pollution All Aluminum Alloy Conductor Type Cables Aluminium Alloys Aluminium Conductor Steel Reinforced Type Cables Aluminum Conductor Alloy Reinforced Type Cables Ambient Temperature Variations Conductors (electric) Control of Electric Power System Critical Bus Loading Critical Bus Voltage Critical Line Loading Electricity Supply Industry Energy System Environmental Factors Four-line Based Voltage Stability Indices Greenhouse Gases IEEE 118 Bus System IEEE 30 Bus System IEEE 300 Bus System Load Flow Load Flow Study Power Flow Power Industry Power System Control Power System Economics Power System Managemen Power System Operation Power System Stability Power System State Estimation Power Transmission Cables Power Transmission Line Reactive Power Requirement For Energy: Ecological Aspects Season Wise Average Temperature Data Seasonal Temperatures Stability in Control Theory Stability Parameter Steel Temperature Effect Total System Active Power Loss Transmission Line Parameter Transmission Network Transmission System Parameter Voltage Collapse Point Estimation Accuracy Voltage Control Voltage Regulators Voltage Stability Analysis ZIP Load Model
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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