Could u please explain me how to do the earth mat design for 220/132/33 kV Outdoor GSS which have 5 steps (135m, 138m, 141m, 144m, 147m). Can’t do the Earth mat.
Jianguo Zhu . 2. 01. Multidisciplinary Design Optimization Methods for Electrical Machines and Drive Systems, Springer. Islam, M. R., Guo, Y. Power Converters for Medium Voltage Networks, Springer. View/Download from: UTS OPUSThis book examines a number of topics, mainly in connection with advances in semiconductor devices and magnetic materials and developments in medium and large- scale renewable power plant technologies, grid integration techniques and new ..
Many of the handouts will be in Portable Document Format (PDF). If you don't already have a viewer for PDF files, you can Download the Foxit Reader or Download the.
C(2952, 9.691%) C-band ==> C
Chapters. Zhu, J. G., Islam, M. R., Hu, J. F., Prasetya, S., Zhan, Y. D., Jafari, M., Pham, H. D. 2. 01. 5, 'Distributed Energy Resource with PEV Battery Energy Storage in the Smart Grid' in Vehicle- to- Grid: Linking Vehicles to the Smart Grid, The Institution of Engineering and Technology, UK, UK. View/Download from: UTS OPUS or Publisher's site.
This chapter presents various aspects of grid- connected distributed generation systems with electric vehicle, including the historical growth of two dominating renewable energy sources, i. Recent development of grid integration technologies, converter topologies, and control techniques are the foremost intention of this chapter. Islam, R., Guo, Y. Multilevel converters for step- up transformer- less direct grid integration of renewable generation units with medium voltage smart microgrids' in Hossain, M. J. 1. 27- 1. 49. View/Download from: UTS OPUS or Publisher's site. For grid integration of renewable generation units, a power frequency transformer operated at 5. Hz is generally used to step- up the low output voltage (usually less than or equal 6.
V) to the medium voltage level (typically 6 to 3. V). Because of the heavy weight and large size of the power frequency step- up transformer, the grid integration system can be expensive and complex for installation and maintenance. To achieve a compact and lightweight direct grid connection, a medium voltage multilevel converter may be an alternative approach. Different multilevel converter topologies with switching and control issues are analyzed for their medium voltage applications. The practical implementation issues are also reported in this chapter. It is expected that the medium voltage multilevel converter would have great potential for future renewable generation and smart microgrid applications. Islam, R., Guo, Y.
Power converters for wind turbines: Current and future development' in Mendez- Vilas, A. View/Download from: UTS OPUSThe wind turbine generator system requires a power conditioning circuit called power converter that is capable of adjusting the generator frequency and voltage to the grid. Several types of converter topologies have been developed in the last decades; each of them has some advantages and disadvantages. Mainly two converter topologies are currently used in the commercial wind turbine generator systems.
Most of the proposed converters require line filters and transformers to improve the power quality and step- up the voltage level, respectively. These heavy and bulky components significantly increase the tower construction, and turbine installation and maintenance costs. Recent advances in power semiconductors and magnetic materials have led to the development of new structure of converters, which would be a possible solution to reducing the size, weight, and cost of power converters.
In this chapter, a comprehensive study of power converter technologies, current research and development is conducted. Guo, Y., jin, J., zhu, J. G. 2. 01. 3, 'Performance Analysis of a Linear Motor with HTS Bulk Magnets for Driving a Prototype HTS Maglev Vehicle' in Applied Mechanics and Materials – Linear Drives for Industry Applications XI, Trans Tech Publications, Switzerland. Conferences. Zhang, Y., Peng, Y. Efficient model predictive power control for three- level AC/DC converters', 2.
International Conference on Electrical Machines and Systems, ICEMS 2. International Conference on Electrical Machines and Systems (ICEMS), Thailand, pp.
View/Download from: UTS OPUS or Publisher's site& copy; 2. IEEE. Conventional model predictive power control (C- MPPC) requires a large amount of calculations, which is an obstacle for its application, especially in the multilevel converters. To solve this problem, this paper presents an efficient MPPC (E- MPPC) for three- level AC/DC converters by eliminating the complicated power predictions. As a result, the execute time and computational burden are reduced significantly while the control performance is not affected.
Furthermore, the suppression of neutral point potential fluctuation and avoidance of high voltage jumps are also taken into account. A comparative study of the proposed E- MPPC and prior C- MPPC are presented in this paper. The effectiveness of the proposed method is validated by simulation and experimental results.
Zheng, L., Zhu, J. G. 2. 01. 6, 'A comparative study of battery balancing strategies for different battery operation processes', Transportation Electrification Conference and Expo (ITEC), 2. IEEE, IEEE Transportation Electrification Conference and Expo (ITEC), IEEE, Dearborn, Michigan, USA, pp. View/Download from: UTS OPUS or Publisher's site. To reduce the effect of cell inconsistencies and improve battery pack capacity, battery balancing techniques are essentially required in battery management systems (BMSs). This paper presents a comparative study of four battery balancing strategies for different battery operation processes. These balancing strategies are developed from the state- of- the- art battery balancing circuits and algorithms reported in recent literature.
The performance of balancing strategies is evaluated and compared by battery pack maximum available capacity, state of charge (SOC) variances at the end of charge (EOC) and end of discharge (EOD). The comparative result is helpful for BMSs developers to employ optimal balancing strategies in actual applications.
Xu, W., Wang, Z. Y., Lei, G. Multi- layer windings effect on performance of flux- switching permanent magnet machines', 2. IEEE International Conference on Applied Superconductivity and Electromagnetic Devices, ASEMD 2. Proceedings, pp. 7. View/Download from: Publisher's site& copy; 2. IEEE. Flux- switching permanent magnet machines (FSPMMs) with fractional- slot concentrated windings (FSCWs) are good candidates for electric vehicle applications due to their simple construction and strong robustness. Although the FSCW can reduce the end- winding overlap and deliver near- sinusoidal back- EMF, it contains a large amount of harmonics, so as to result in, more losses.
In this paper, the effect of number of winding layer on key electromagnetic indexes of FSPMMs with FSCW is analyzed based on finite element analysis (FEA). Comprehensive simulations demonstrate that significant reduction can be got on torque ripple, total harmonic distortion (THD) of back- EMF and losses with higher number of winding layer. Teng, Q. F., Li, G. F., Zhu, J. G., Guo, Y. G. 2. 01. 6, 'ADRC- based model predictive current control for PMSMs fed by three- phase four- switch inverters', 2. IEEE 8th International Power Electronics and Motion Control Conference, IPEMC- ECCE Asia 2. View/Download from: UTS OPUS or Publisher's site& copy; 2.
IEEE. A novel automatic disturbances rejection control (ADRC)- based model predictive current control (MPCC) strategy is developed for permanent magnet synchronous motors (PMSMs) fed by three- phase four- switch inverters, an after- fault- topology for fault- tolerant three- phase six- switch inverters. The mathematical model of a PMSM fed by a three- phase four- switch inverter is built firstly. Then the ADRC and MPCC are respectively designed, with the former being used to realize disturbance estimation and disturbance compensation while the latter being used to reduce stator current ripple and improve the quality of the torque and speed control.