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| Content Provider | IET Digital Library |
|---|---|
| Author | Xiao, Dongping Xie, Yutong Ma, Qichao Zheng, Qi Zhang, Zhanlong |
| Abstract | With the development of smart grid, the demand for voltage measurement along the overhead transmission lines is increasing. However, the installation of voltage transformers in the existing lines entails numerous difficulties. This study proposes a new non-contact measurement method by inversely calculating the voltages on AC overhead transmission lines based on the power-frequency electric field measurement data. To improve the calculation accuracy, the 3D model of transmission lines is built, and the relations between the 3D electric fields and voltages are presented. An improved algorithm that intermingles with the particle swarm algorithm and genetic algorithm is developed to ascertain optimal inverse solutions, meanwhile to improve the convergence speed and calculation stability. To further reduce the computational complexity, the constraint relations between the voltages and electric fields are derived, thereby the simplification from three decision variables to one is achieved. Then, some simulation cases with different measurement errors and voltage running states are conducted to show the good robustness and high accuracy of the proposed inversion method. Finally, a three-phase experimental system is built and the actual measured data are used to inversely calculate, which verifies the practicability of the proposed non-contact voltage measurement method. |
| Starting Page | 2952 |
| Ending Page | 2957 |
| Page Count | 6 |
| ISSN | 17518687 |
| Volume Number | 12 |
| e-ISSN | 17518695 |
| Issue Number | Issue 12, Jul (2018) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-gtd/12/12 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2017.1849 |
| Journal | IET Generation, Transmission & Distribution |
| Publisher Date | 2018-04-04 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | 3D Mathematical Model 3D Real-time Electric Field Measurement Devices AC Overhead Transmission Line Asymmetrical Simulation Computational Complexity Convergence Speed Electric Field Electric Field Inverse Calculation Electric Field Measurement Data Genetic Algorithm Inverse Calculation Inverse Problem Measurement Error Multiple Decision Variables Network And Transmission Line Calculations Noncontact Voltage Measurement Method Optimal Inverse Solutions Optimisation Algorithm Optimisation Technique Overhead Power Line Particle Swarm Optimisation Particle Swarm Optimization Algorithm Potential Transformer Power Overhead Line Selection Strategy Single Decision Variable Smart Grid Development Smart Power Grid Three-phase Overhead Transmission Line Three-phase Symmetrical Simulation Transformer And Reactors Voltage Measurement Voltage Parameter Measurement Voltage Transformer |
| Content Type | Text |
| Resource Type | Article |
| Subject | Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering |
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