| Description |
1 online resource (ix, 83 pages) : illustrations |
| Series |
Synthesis lectures on power electronics, 1931-9533 ; #4 |
|
Synthesis lectures on power electronics ; #4.
|
| Contents |
1. Introduction |
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2. Overview of photovoltaics -- 2.1 Operation of a photovoltaic cell -- 2.1.1 Electrical parameters of a photovoltaic cell/module -- 2.1.2 Resistive losses in a solar cell -- 2.1.3 Bypass diodes in a PV module -- 2.1.4 Effect of temperature and irradiance -- 2.2 Modeling of photovoltaic modules -- 2.2.1 The Sandia model -- 2.2.2 The five-parameter model -- 2.2.3 Comparison of the Sandia and the five-parameter models -- 2.3 Photovoltaic array topologies -- 2.4 Summary |
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3. Causes performance degradation and outage -- 3.1 Shading -- 3.1.1 Bypass diodes -- 3.2 Module mismatch -- 3.2.1 Mismatches in current -- 3.2.2 Mismatches in diode parameters -- 3.3 Module soiling -- 3.4 Ground fault -- 3.5 DC arc fault -- 3.6 High-resistance connections -- 3.7 Inverter failure -- 3.8 Islanding -- 3.9 Summary |
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4. Fault detection methods -- 4.1 Current methods in photovoltaics -- 4.2 Anomaly detection and statistics -- 4.2.1 The Euclidean distance -- 4.2.2 The Mahalanobis distance -- 4.2.3 The minimum covariance determinant (MCD) -- 4.2.4 K-nearest neighbor methods -- 4.3 Machine learning methods -- 4.3.1 Feed-forward neural networks -- 4.3.2 Drawbacks of neural networks -- 4.3.3 Support vector machines -- 4.4 Summary |
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5. Array topology optimization -- 5.1 Fixed array topology design -- 5.1.1 Sizing stand-alone PV arrays -- 5.1.2 Sizing grid connected PV arrays -- 5.2 Need for reconfigurable topology -- 5.2.1 Increasing inverter uptime -- 5.2.2 Improving array output -- 5.3 Existing reconfiguration methods -- 5.3.1 Irradiance equalization -- 5.3.2 Adaptive banking -- 5.3.3 Other methods -- 5.4 Requirements for reconfigurable PV systems -- 5.5 Summary |
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6. Monitoring of PV systems -- 6.1 The need for AC side monitoring -- 6.1.1 Prevent outages -- 6.1.2 Islanding protection -- 6.1.3 Improve power quality -- 6.1.4 Performance evaluation -- 6.2 The need for DC side monitoring -- 6.2.1 Identify faults -- 6.2.2 Evaluating trends -- 6.3 Existing methods of monitoring -- 6.4 Monitoring system considerations -- 6.4.1 Sensor measurements -- 6.4.2 Sensor to server communication -- 6.4.3 User interface -- 6.5 Summary |
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7. Summary -- A. Matlab code -- Sandia performance model -- Parameters for Sharp NT175U1 -- IV curve for Sandia performance model -- Bibliography -- Authors' biographies |
| Summary |
Although the solar energy industry has experienced rapid growth recently, high-level management of photovoltaic (PV) arrays has remained an open problem. As sensing and monitoring technology continues to improve, there is an opportunity to deploy sensors in PV arrays in order to improve their management. In this book, we examine the potential role of sensing and monitoring technology in a PV context, focusing on the areas of fault detection, topology optimization, and performance evaluation/ data visualization. First, several types of commonly occurring PV array faults are considered and detection algorithms are described. Next, the potential for dynamic optimization of an array's topology is discussed, with a focus on mitigation of fault conditions and optimization of power output under non-fault conditions. Finally, monitoring system design considerations such as type and accuracy of measurements, sampling rate, and communication protocols are considered. It is our hope that the benefits of monitoring presented here will be sufficient to offset the small additional cost of a sensing system, and that such systems will become common in the near future |
| Analysis |
photovoltaic systems |
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electrical fault detection |
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condition monitoring |
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circuit optimization |
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wireless sensor networks |
| Bibliography |
Includes bibliographical references (pages 73-79) |
| Notes |
Title from PDF title page (Morgan & Claypool, viewed Oct. 8, 2012) |
|
English |
| Subject |
Photovoltaic power systems.
|
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Electric fault location.
|
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TECHNOLOGY & ENGINEERING -- Electrical.
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Electric fault location
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Photovoltaic power systems
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| Form |
Electronic book
|
| Author |
Braun, Henry
|
| ISBN |
9781608459490 |
|
1608459497 |
|
9783031024979 |
|
3031024974 |
|
