Detection of Corona Discharge in Electric Networks (Studies in Systems, Decision and Control, 509)

Preface
About This Book
Contents
Editors and Contributors
Development of Approaches to the Quality of Electricity Supply
	1 Introduction
	2 Voltage Control in Power Supply Systems
	3 Frequency Control in Power Supply Systems
	4 Main Parameters of Electric Power Supply Quality
	5 Analysis of Power Quality Parameters in the Power Supply System
		5.1 Electricity Supply Quality Measurement Results
		5.2 Conclusions on the Measurement of Electricity Supply Quality
	References
Influence of Corona Discharge on Electric Power Supply Parameters
	1 Introduction
	2 Description of Corona Discharge and Its Peculiarities in Power Supply Systems
		2.1 Forms of Corona Discharge and Loss of Energy
		2.2 General Characteristics of the Power Loss on the Corona
	3 AC Corona in Bad Weather Conditions of Various Types
		3.1 Power and Energy Losses Per Corona During Rainfall
		3.2 Power and Energy Losses Per Corona Under Snow Conditions
		3.3 Energy Losses for Flicker Corona During Bad Weather of Other Species
	References
Detection of Corona Discharge in Power Supply System
	1 Different Types of Environmental Disturbance by Corona Discharge
	2 Ultraviolet Radiation of Corona Discharge
	3 Infrared Radiation with the Presence of Corona Discharge
	4 Electromagnetic Field Created by Corona Discharge
	5 Chemical Compounds Created by Corona Discharge
	6 Detection of the Presence of Corona Discharge Using the Method of Mechanical Work Detection
	References
Theoretical Principles of Acoustic Radiation Created by Corona Discharge
	1 Explanation of Mechanism of Acoustic Radiation by Corona Discharge
		1.1 Electric Field and Volumetric Charge Distribution in the External Corona Discharge Zone of the Alternating Current
		1.2 Ion Current and Flux in the Outer Zone of the Corona Discharge
	2 Experimental Measurements of Corona Discharge Acoustic Signals in Electric Power Supply Systems
		2.1 Laboratory Equipment for Acoustic Measurements of the Acoustic Corona Discharge Signal
		2.2 Performing Acoustic Measurements and Their Results
		2.3 Spectral Distribution of Corona Discharge Audio Signal
	References
Recognition of Corona Discharge Presence by Spectral Characteristics of Acoustic Radiation
	1 Analysis of Acoustic Corona Discharge Radiation with Mathematical Model
	2 Recognition of Corona Discharge by the Presence of Spectral Components
		2.1 Analysis of the Soundtrack of Documentary Film #1
		2.2 Analysis of the Soundtrack of the Documentary Film #2
	3 Recognition of Corona Discharge Presence in Terms of Acoustic Noise
		3.1 Noise Classification by Time Characteristics
		3.2 Noise Classification by Origin
		3.3 Levels of Acoustic Noise
		3.4 Acoustic Noise Spectra
	References
Instruments for Identification of Corona Discharge Presence by Spectral Characteristics of Acoustic Radiation
	1 Corona Discharge Detection by Uncontrolled Device
	2 Corona Discharge Detection by the Device on the Moving Platform
		2.1 Noise Analysis of DJI Mavic Pro Quadcopter
		2.2 Sound Noise Analysis of Quadcopter of Unknown Manufacturer
	3 Work Distance of Scanning System
	References
Theoretical Basis of Determination of Corona Discharge Coordinates by Acoustic Radiation
	1 Three-Dimensional Pressure Field of the Acoustic Wave of Corona Discharge
		1.1 Theoretical Information About the Acoustic Field of Corona Discharge
		1.2 Calculation of Equivalent Acoustic Pressure Levels
	2 Acoustic Intensity Curves of Acoustic Source of Corona Discharge
	3 Calculating Results of the Pressure Levels of the Acoustic Field from the Corona Discharge
	References
Instruments for Corona Discharge Coordinate Search as a Source of Acoustic Radiation
	1 Introduction
	2 Searching for Corona Discharge Coordinates with a Mobile Scanning Device
	3 Impact of Hindrance Shielding Acoustic Radiation
		3.1 Methods for Taking into Account the Reflection of Sound from Surfaces
		3.2 Calculation of Energy Characteristics with Reflecting Non-constant Noise Fields Based on Methods for Calculating Noise Levels
		3.3 Acoustic Source Shielding
		3.4 Effect of Reflection on Localization of Corona Discharge Source
	4 Impact of the Doppler Effect on Acoustic Measurements
	References
Prospects for the Development of Corona Discharge Detection Method by Spectral Acoustic Radiation
	1 Introduction
		1.1 Problems of Spectral Decomposition of the Fourier Transform
	2 Overview of Mathematical Models and Methods for Monitoring the Properties of Dynamic Processes
		2.1 Problem of Dynamic Process Monitoring
		2.2 Analysis of the Structure of Time Series to Identify Cause-and-Effect Relationships of Dynamic System
		2.3 Identification of the Moments’ Change in the Properties of the Time Series
		2.4 Optimization of Regulation and Quality Control
	3 Method of Singular Spectrum Analysis (SSA)
	4 Development of a Technique for Applying Singular Decomposition to Analyze Changes in the Properties of Time Series
	References
Economic Effect of the Use of the Method of Diagnosing the State of Power Lines at the Expense of UAVs
	1 Analysis of the Status of Energy Objects of Ukraine
	2 Calculation of Losses from Emergency Modes
		2.1 Damage Definition Structure
		2.2 Components of Economic Damage
	3 Measures to Reduce Losses from Emergency Modes Due to the Use of UAVs
	4 Calculating the Economic Effect of UAV’s Implementation
		4.1 Determination of the Income Part from the Implementation
		4.2 Loss of Energy Companies from Unearned Profit
		4.3 Consumer Losses from Destruction, Damage of Basic Funds and Property of Third Parties
		4.4 Total Losses
		4.5 Costs for the Purchase of UAV Complexes
		4.6 Current UAV Maintenance Costs
		4.7 UAV Implementation Efficiency
	References