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Measurement for the parameters of Permanent Magnet Synchronous Motor
Published in Kennis Chan, Testing and Measurement: Techniques and Applications, 2015
STM32F407. We read the CCR1, CCR2, CCR3 to calculate the action time of each vector. Attention to depress the influence of dead time is set for avoiding Figure5 Voltage bias circuit the inverter short. The bus Figure5 Voltage bias circuit voltage of the inverter is more than ib should be filtered to reduce the A/D The ia , The In voltage make it fit is more than 300V. bus order toof the inverterfor A/D sampling, the sampling error. Using the data in the first 2.5ms can 300V. order to make it fit shown sampling, is isolationIn isolation and amplifier in Figure.6 the improve the accuracy of the results, as id is an index incircuit voltageand amplifieramplifierfor A/D shown inshown in Fig- accuracy of the results, as id is an circuit Figimprove the voltage The DC and circuit designed.isolation signal suffers the voltage divider cirure.6is then the operational signal signal theis com- curve that tends to bedesign flow charttime growth. time isdesigned. The The amplifier circuit voltage The overall software to bewith the with the designed. DC DC suffers suffersdex voltagethat tends stable stable is shown in the curve ure.6 cuit and divider TLV2372. then isolation operational cir- Figure.8. dividercircuit andand then thecircuit amplifieramplifier cir- overall software design flow chart is circuit The the operational compose by growth. The posed of cuit cuit iscan reduce of TLV2372. The inThecircuit.shown in Figure.8. composed of TLV2372. the circuit A7840iscomposed the mutual influenceisolationisolation circuit compose by A7840 can The Entrance compose by A7840 reduce the mutual influence influence for Inductance can reduce the mutual in the circuit. N Measuring in the circuit. The Working Time of
RAMI Analysis for PF Power Supply System of ITER
Published in Fusion Science and Technology, 2022
Li Jiang, Ge Gao, Zhengyi Huang, Jie Zhang, Peng Wu, Xuesong Xu
The RBD models are shown in Figs. 7, 8, and 9. There are six PF coils, with PF1 and PF6 supplied by one PF power supply unit. PF2, PF3, PF4, and PF5 are supplied by three PF power supply units which connect in series. CCR1 controls PF1 and PF6, CCR2 controls PF2, PF3, PF4, and PF5. Before the simulation in BlockSim software, the duty cycle is set to be 10% and the mission end time is 264 h (11 days), which is supposed to be a single plasma operating cycle of ITER. The simulation end time is 11 520 h based on the ITER requirement. The numbers of simulation are set to be 1000 for achieving more precise results.