Harmonics analysis of the ITER poloidal field converter based on a piecewise method

Xudong WANG (王旭东); Liuwei XU (许留伟); Peng FU (傅鹏); Ji LI (李冀); Yanan WU (吴亚楠)

doi:10.1088/2058-6272/aa86a5

Plasma Science and Technology > 2017 > 19(12): 125602. > DOI: 10.1088/2058-6272/aa86a5

Xudong WANG (王旭东), Liuwei XU (许留伟), Peng FU (傅鹏), Ji LI (李冀), Yanan WU (吴亚楠). Harmonics analysis of the ITER poloidal field converter based on a piecewise method[J]. Plasma Science and Technology, 2017, 19(12): 125602. DOI: 10.1088/2058-6272/aa86a5

Citation:

PDF (956 KB)

Harmonics analysis of the ITER poloidal field converter based on a piecewise method

1 Institute of Plasma Physics, Chinese Academy of Science, Hefei 230031, People’s Republic of China 2 University of Science and Technology of China, Hefei 230026, People’s Republic of China 3 Maintenance Company, State Grid Anhui Electric Power Company, Hefei 230061, People’s

More Information

Received Date: May 30, 2017

Graphical Abstract

Abstract

Abstract

Poloidal field (PF) converters provide controlled DC voltage and current to PF coils. The many harmonics generated by the PF converter flow into the power grid and seriously affect power systems and electric equipment. Due to the complexity of the system, the traditional integral operation in Fourier analysis is complicated and inaccurate. This paper presents a piecewise method to calculate the harmonics of the ITER PF converter. The relationship between the grid input current and the DC output current of the ITER PF converter is deduced. The grid current is decomposed into the sum of some simple functions. By calculating simple function harmonics based on the piecewise method, the harmonics of the PF converter under different operation modes are obtained. In order to examine the validity of the method, a simulation model is established based on Matlab/ Simulink and a relevant experiment is implemented in the ITER PF integration test platform. Comparative results are given. The calculated results are found to be consistent with simulation and experiment. The piecewise method is proved correct and valid for calculating the system harmonics.
- harmonics,
- PF converter,
- piecewise method

FullText(HTML)

References (17)

References

[1]	Tao J et al 2011 ITER coil power supply and distribution system Proc. IEEE/NPSS 24th Symp. on Fusion Engineering (Chicago, IL: IEEE)
[2]	Fu P et al 2013 Fusion Sci. Technol. 64 741
[3]	Song Z Q et al 2016 IEEE Trans. Plasma Sci. 44 1677
[4]	ShengZC,XuL WandFuP2012 Plasma Sci. Technol. 14 338
[5]	Yang W et al 2009 Plasma Sci. Technol. 11 493
[6]	Task Force on Harmonics Modeling and Simulation, IEEE PES Harmonic Working Group 2001 IEEE Trans. Power Deliv. 16 791
[7]	Singh G K 2009 Eur. Trans. Electr. Power 19 151
[8]	Arrillaga J, Bradley D A and Bodger P S 1985 Power System Harmonics (New York: Wiley)
[9]	Fukuda S, Ohta M and Iwaji Y 2008 IEEE Trans. Power Electron. 23 1270
[10]	Rice D E 1994 IEEE Trans. Ind. Appl. 30 294
[11]	Xu W 2003 Status and future directions of power system harmonic analysis IEEE Power Engineering Society General Meeting (Toronto: IEEE)
[12]	Biringer P P and Slonim M A 1980 IEEE Trans. Ind. Appl. IA?16 242
[13]	Slonim M A and Biringer P P 1980 IEEE Trans. Ind. Appl. IA?16 248
[14]	Tooth D J, Finney S J and Williams B 2001 IEEE Trans. Aerosp. Electron. Syst. 37 109
[15]	YuanH W et al 2014 J. Fusion Energy 33 269
[16]	Yuan H W et al 2014 Study on the four quadrants operation of ITER poloidal ?eld converter system IEEE Int. Power Electronics and Application Conf. and Exposition (Shanghai: IEEE)
[17]	YuanH W et al 2014 Plasma Sci. Technol. 16 1147