Abstract
The power level of full-controllable devices has been improved as the fast-growing technology of high-power semiconductor device, which promotes the upgrade of the poloidal field power supply (PFPS). In this paper, a new PFPS is proposed by using full-controllable devices. It is composed of voltage source converter (VSC) and H-bridge converter. Then combining with the dual closed-loop control strategy, the unified power control strategy is presented. To verify the correctness and reliability of the proposed analysis and strategy, a series of simulations about the dynamic response speed and the stability of the intermediate capacitor voltage are carried out. And the results prove that the unified power control strategy effectively improves the performance of the new PFPS.
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