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1. There be no circulating current in main circuit.

2. A programmer is tested for calculating the circulating current, and the result is compared with experimentation to prove the correctness of the calculation.

3. Meanwhile, the influential factors of circulating current are discussed, and a new method to reduce the value is presented.

4. The results of the experiments prove that the circulating current method is feasible. It will bring mu...

5. Through simulation, It interpreted the relation between circulating current and amplitude difference, phase difference, frequency difference while inverters worked in parallel.

6. In this paper, the cause of non-productive winding circulating current and influence on the performance of electric motors were analysed and investigated.

7. In this paper, the instantaneous model of zero-sequence circulating current between parallel three-phase inverters with three-pole reactors and three-pole transformers is established.

8. DC SR without circulating current system are relatively wide range of applications, DLC is reversible without circulating current control of the core controller DC Speed Control System.

9. The macroscopic quantization of circulating current is an attractive property of superfluids.

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10. The generator stator winding parallel branches circulating current characteristics on air - gap eccentric fault were analyzed.

11. The harmonic losses, circulating current loss, eddy losses of the coils and eddy losses of the spider arms are calculated . The second harmonic losses of reactor are separated at last.

12. By comparison and analysis about circulating current and load current, a new approach for compensation of dead-time effects is presented.

13. The circulating current can be effectively inhibited by controlling the operation time for different zero vectors in each PWM cycle.

14. Thus the analytical expressions for calculating the length of voids and its circulating current loss ratio have been deduced.

15. Meanwhile in allusion to the problem of uniform triphase chopping circulating current in DC side, dynamic share current control strategy was employed.

16. By digital adjustment with high precision on the DC bias of reference sine wave, the DC bias contained in inverter output voltage can be adjusted to restrain DC circulating current.

17. Furthermore, it has satisfactory computation precision due to the use of multi- section method for the calculation of leakage magnetic field and the circulating current losses.

18. This control mode can effectively control phase difference of output voltage by the simulation, and circulating current can obviously be restrained, thus achieves the objective of sharing load power.

19. For a parallel inverter system without output isolating transformers, discrepancy in DC biases contained in the output voltage of each module can cause large DC circulating current among inverters.

20. Furthermore, the ZVZCS converter's efficiency is enhanced owing to its primary circulating current being eliminated basically.

21. The Vacon-patented method of synchronizing parallel inverter (Active Front-End) units minimizes the circulating current between the units.