| Dynamic Uninterruptible Power Supply is one of the most important devices of Custom Power, which can quickly compensate voltage sag, voltage swell, harmonics and voltage fluctuations with a higher performance/price ratio. The merits and drawbacks of three compensated strategies, compensation according to voltage before sag, compensation according to phase angle and compensation according to optimal energy, are discussed in this paper, and so as their applicability and conditions; A compensation direct detection of DUPS considering fuzzy parameters self-correcting PID control is proposed, and its validity has been testified by MATLAB simulation results; Moreover, the main circuit topological structure of DUPS is analyzed and designed; The control method of DUPS is researched, and the deadbeat control algorithm is introduced; Finally, the hardware control circuit is introduced with a core of TMS320LF2407A slug, and software of control circuit is programmed with assembly language, its corresponding functions of the software are debugged with a platform of evaluated board. |
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