Junhong CHEN1, Yi WU1,*, Yingqiao WANG1, Weibin LI1..., Yuhong CHEN1, Yali WANG1, Xiaopeng ZHANG1, Xue ZHENG1, Chunguang ZHANG1, Weimin XUAN1, Lieying YAO1, Hao TAN1, Wenwu LUO2,3, Peihai ZHOU2,3, Xianming SONG2,3, Shaoxuan LIU2,3, Zequn SUN2,3, Zijian CONG2,3, Enwu YANG2,3, Xingxin GE2,3 and Xiang GAO2,3|Show fewer author(s)
Author Affiliations
1Center for Fusion Science, Southwestern Institute of Physics, Chengdu 610041, China2ENN Science and Technology Development Co., Ltd, Langfang 065001, China3Hebei Key Laboratory of Compact Fusion, Langfang 065001, Chinashow less
DOI: 10.11889/j.0253-3219.2024.hjs.47.050013
Cite this Article
Junhong CHEN, Yi WU, Yingqiao WANG, Weibin LI, Yuhong CHEN, Yali WANG, Xiaopeng ZHANG, Xue ZHENG, Chunguang ZHANG, Weimin XUAN, Lieying YAO, Hao TAN, Wenwu LUO, Peihai ZHOU, Xianming SONG, Shaoxuan LIU, Zequn SUN, Zijian CONG, Enwu YANG, Xingxin GE, Xiang GAO. Development of power supply system of EXL-50U magnet coils[J]. NUCLEAR TECHNIQUES, 2024, 47(5): 050013
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Fig. 1. Current and voltage waveforms of different configurations (a) Single-null, (b) double-null, (c) snowflake
Fig. 2. Power supply system diagram
Fig. 3. 12-pulse (a) and 24-pulse (b) scheme for TF power supply
Fig. 4. Current harmonics between 12-pulse and 24-pulse schemes for TF power supply
Fig. 5. 12-pulse scheme for CS and PF power supply
Fig. 6. Control diagram of power system
Fig. 7. Actual current waveforms of TF (a) and CS (b) power supply
Fig. 8. Actual current waveforms of magnetic coils power supplies (a) Shot:1615, (b) Shot:1731, (c) Shot:1638
Fig. 9. current waveforms of magnetic power supplies (shot:1968) (a) Plasma current and TF coil current, (b) CS coil current, (c) PF coils current
| 参数Parameters | EXL-50 | EXL-50U |
|---|
中心离子温度Ti Center ion temperature Ti / keV | 1.0 | 6.0 | 中心密度ne Center density ne / m-3 | 2.0×1019 | 1.0×1020 | | 磁场B0 Magnetic field B0 / T | 0.46 | 1.2 | | 大半径R0 Major radius R0 / m | 0.58 | 0.73 | | 环径比A Aspect ratio A | 1.4 | 1.7 | 等离子体电流Ip Plasma current Ip / MA | 0.5 | 0.9 |
|
Table 1. Comparison of parameters of EXL-50 and EXL-50U
| 电源名称Power supply | TF | CS | PF1/PF2 | PF3/PF4 | PF5/PF6 | PF7/PF8 | PF9/PF10 |
|---|
| 电压Voltage / V | 500 | ±1 500 | ±400 | ±300 | ±300 | ±600 | 600 | | 电流Current / kA | 150 | ±40 | ±13 | ±16 | ±16 | ±13 | 16 |
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Table 2. Parameters of EXL-50U magnetic field power supplies
| 额定电压Rated voltage / kV | 额定电流Rated current / kA | 额定功率Rated power / MVA | 额定频率Rated frequency / Hz | 发电机转速Generator speed / r∙min-1 |
|---|
| 2×3 | 2×12.4 | 100 | 100~66 | 6 000~3 960 |
|
Table 3. Parameters of MG100
变压器移相角度 Transformer phased angle / (°) | 频率Frequency / Hz | 额定脉冲容量Rated pulse capacity / MVA | 额定线电压Rated line voltage / V | 额定线电流Rated line current / kA | 绕组Windings |
|---|
| ±22.5，±7.5 | 100~66 | 21.4 | 3 000/383 | 4.5/32.7 | 2 |
|
Table 4. Parameters of TF transformers
| 额定电压Rated voltage / kV | 额定电流Rated current / kA | 额定功率Rated power / MVA | 额定频率Rated frequency / Hz | 发电机转速Generator speed / r∙min-1 |
|---|
| 2×3 | 2×12 | 125 | 100~80 | 3 000~2 400 |
|
Table 5. Parameters of MG125
| 电源Power supply | 变压器移相角度 Transformer phased angle / (°) | 频率Frequency / Hz | 额定脉冲容量Rated pulse capacity / MVA | 额定线电压Rated line voltage / V | 额定线电流Rated line current / kA | 绕组Windings |
|---|
| CS | ±15 | 100~80 | 16.1 | 3 000/1 137 | 3.1/8.2 | 2 | | PF1-2 | ±15 | 100~80 | 5.6/2.8/2.8 | 3 000/303/303 | 1.1/5.3/5.3 | 3 | | PF3-6 | ±15 | 100~80 | 5.2/2.6/2.6 | 3 000/225/225 | 1.0/6.7/6.7 | | PF7-8 | ±15 | 100~80 | 8.4/4.2/4.2 | 3 000/455/455 | 1.6/5.3/5.3 | | PF9-10 | ±15 | 100~80 | 10.3/5.2/5.2 | 3 000/455/455 | 2.0/6.5/6.5 |
|
Table 6. Parameters of CS, PF transformers
| 类型Type | 信号名称 Signals name | 信号来源 Signals source |
|---|
事故 Fault | 变压器原边交流过流 AC overcurrent of primary side from transformers | 交流开关柜内电流互感器 Current transformers from AC switchgear | | 变压器副边交流过流AC overcurrent of secondary side from transformers | 变流器柜内电流互感器 Current transformers from converters | 变流器单桥直流过流 DC overcurrent of single bridge from converters | 变流器柜内电流传感器 Current sensors from converters | | 电源输出总直流过流DC overcurrent of current summation from converters | 变流器柜内电流传感器 Current sensors from converters | 变压器过温 Over temperature of transformers | 变压器内部温度传感器 Temperature sensors from transformers | 急停按钮 Stop signal | 控制室的急停按钮 Stop button from center control | 警告 Warning | 变压器副边交流过压 AC overvoltage of secondary side from transformers | 变流器柜内交流电压传感器 AC voltage sensors from converters | 变流器单桥直流过压 DC overvoltage of single bridge from converters | 变流器柜内直流电压传感器 DC voltage sensors from converters | 电源输出总直流过压 DC overvoltage of converters | 变流器柜内直流电压传感器 DC voltage sensors from converters | 熔断器故障 Fuse signal | 快熔指示开关 Fuse buttons | 桥臂过温 Over temperature of bridge arms | 母排温度传感器 Temperature sensors from bus |
|
Table 7. Classification of fault, warning
