Power System Technology Jan HVDC BASED ON VOLTAGE SOURCE CONVERTER A NEW GENERATION OF HVDC TECHNIQUE

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1 7 Vol. 7 No. 00 Power System Technology Jan TM7 C HVDC 006 HVDC BASED ON VOLTAGE SOURCE CONVERTER A NEW GENERATION OF HVDC TECHNIQUE WEN Jun, ZHANG i-gong, HAN Min-xiaoXIAO Xiang-ning (North China Electric Power Univercity, Beijing 006, China) PCC HVDC VSC 0 0 HVDC PCC 88 M.kW.~kV 7km [6][9] 78% [] PCC HVDC [9] 94 HVDC Gotland 0MW00kV 96km97 Eel RiverHVDC HVDC 0MW 80kV HVDC 0Hz 60Hz HVDC 70 HVDC [] 0Hz 600km PCC HVDC [4] 400kV 000MW 6~0Hz 9 80~90 HVDC 888

2 48 Power System Technology Vol. 7 No. 700km 40km [8] HVDC 9%7.7% HVDC 4 [67] kv 00 kv % PCC HVDC 0kV 6 HVDC (VSC) HVDC GTO %0%40%60% 4 [] (IGBT) IGBT SPWM VSC u c u tri u i PCC HVDC 4 u i PCC IGBT 4 IGBT VSC Fig. One phase diagram of a VSC with IGBT PCC HVDC + u o = / u o = / + u o ± / u o u c u s u tri u c u o + u i + + u 0 u s

3 7 49 u c u o u s 80 kv70 km Gotland u c u o u s VSC u i u c u tri (a) (b) u tri t t VSC 0 kv40 km Fig. Characteristics of a VSC with IGBT New Mavend Connecticut UsU o P = sin δ X 6Murraylink 00 MW 0 kv 80 km Victoria U U U s ( s o cosδ ) Q = 00 4 X U o U s VSC u o VSC HVDC δ u o u s X PCC HVDC VSC [] [4] Hellsjon VSC MW 0 kv 0 km 0 kv Hellsjon Grangesberg 4 0kV 0kV +0kV ~ u u 0 0 ~ 0kV u s u s [0] Directlink : 80 MW 6 km Queensland New South Wales 999 Tiaereborg 7. MW 9 kv 4. km Tiaereborg Eagle Pass : 6 MW.9 kv, (Texas) Cross-Sound 0 MW VSC 4 P= MW, I d =0A 4 0 t Hellsjon VSC based HVDC project [] Gotland : 0 MW 0 MW 0 kv

4 0 Power System Technology Vol. 7 No. 0 m [, 9] [6]~ [8] 6 VSC [9] 4 [,4], 0kV 00MW 6 VSC [6] 7 / 0~60km / (VSC) PCC [] 0% kv70km 00kV 00MW 4 [] Asplund G, Eriksson K, Svensson K. DC transmisson based on voltage source converters[c]. CIGRE SC4 Colloquium in South Africa, 997. [] Stendius L & Eriksson K. HVDC light an excellent tool for city center infeed [C]. PowerGen Conference, Singapore, September 999 [] Weimers L. New markets need new technology [J]. IEEE Trans on Power Delivery, 000:

5 7 [4] Vassilios G. Agelidis, Lie Xu. A novel HVDC system based on flying capacitor multilevel PWM convertors [C]. CIGRE Conference, Wuhan, China 00:80-8. [] [6]. [M]. [0] Axelsson U Holm A Liljegren C et al. The gotland HVDC light project 98. [7]. [M] Publication No.48. IEE 00. [8]. [M]. [] Eriksson Ket. al. Gotland HVDC light transmission-world s first 998. [9]. [M] [0]. [M]. [] Byggeth Met. al. Gotland HVDC light-the world s first commercial 999. []. HVDC [M]. August []. [C]. IEEE Trans on Power Delivery, 000: [4] Imal EBagriyanik Met al. A FACTS technique for converting existing []. [M]. AC transmission into HVDC (and back) [J]. IEEE Trans on Power 000. [4]. [J]. 997 [] Ruderval R Carpentier J Sharma R. High voltage direct current (HVDC) -6. []. [J] [6] Thiringer T. Integration of large sea-based wind parks-how much power electronic devices are needed in order to avoid power quality problems on the grid [J]. IEEE Trans. on Power Delivery, 000: [7] Gardner P. Offshore wind energy: Resources, technology and grid connection[c]. International Workshop on Feasibility of HVDC Transmission Networks for Offshore Wind Farms, Stockholm, Sweden, March 0-, 000 [8] Ronsten Get al. Evaluation of loads, power quality, grid interaction, meteorological conditions and power performance of the first swedish offshore wind farm at bockstigen[c]. Offshore Wind Energy in April - Mediterranean and other European Seas, OWEMES 00, Syracuse, Italy, April -4, 000 [9] Weimers L. HVDC Light: A new technology for a better environment[c]. IEEE Power Engineering Review, August 998:9-0. experiences from trial and commercial operation [C]. CIGRE Conference commercial small scale DC transmission [C]. Presented at CIRED, Nice, France, June 999. extruded HVDC cable system [C]. Presented at CIGRE, Paris, France, [] Asplund G. Application of HVDC light to power system enhancement [J]. Delivery, 00:9-6. transmission systems[c]. Technology Review Paper, Presented at Energy Week 000, Washington, USA, March 7, continued from page 46 m.6 m=~ 007()~ 4 [6] 6 ()6~8 [] Ma JDawalibi FOn the equivalence of uniform and two-layer soils to multiplayer soils in the analysis of grounding systems[j]iee Proc Gener Transm Distrib9964()49 [] ANSI/IEEE Std 8-98 IEEE Guide for Measuring Earth Resisti-vity Ground Impedance and Earth Surface Potentials of a Ground System[S] [] [J] [4] Leonard Chow ang Jianjun Gregory E Howard Complex images for electrostatic field computation in multilayered me-dia[j]ieee Trans on Microwave Theory and Techniques999(7)0 [] Zhang BoZhao ZhibinCui Xiang et aldiagnosis of breaks in substations s grounding grid by using the electromagnetic me-thod[j]ieee Trans on Magnetics008()47~476 [6] [J] IEEE

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