Research Of Three Phase Acvoltage Stabilizer Based On Delta Inverter

Three phase alternating current plays an important role in our daily lives. In some of thesituations requiring high power quality, harmonics neither exist nor have significant voltagefluctuations, but the AC often can not meet these requirements. Thus, three.phase AC voltagesource of this research can compensate for these shortcomings in ensuring a high power factorof the case to the system to increase the digital signal processing technology control modulelinks to enhance the speed and accuracy of the compensation voltage to ensure that the user safeand reliable electricity for stable industrial production has played a good role in safeguarding.AC voltage source of this research is based on a series Delta inverter technologycompensated three.phase AC voltage source. In Delta inverter technology is mainly used in theinstantaneous value of the voltage comparator incremental method, this method is by comparingthe standard voltage and the instantaneous value of the voltage waveform obtained after thepressure difference Δu as a modulation signal. This modulated signal is combined with thesystem of the triangular carrier wave is generated using bipolar SPWM collection method, thenSPWM wave to control the IGBT off by the amplified signal to thereby generate thecompensated voltage corresponding to the difference between the inverter circuit via a rectifiervoltage, and then through the series compensation compensation voltage transformer to themains voltage in superposition method to achieve compensation for voltage. The main circuituses the Delta inverter and SPWM retifier, they both can accurately adjust the voltage, and canalso make a two.way flow of electricity.Finally, with the help of SIMULINK simulation software to simulate the experimentalcontent, then the software platform through the relevant procedures for the test when themeasured value when the input voltage fluctuates between±76V (i.e.,380×20%), the outputvoltage can be stabilized in the range of380V×1%. Experimental results demonstrate that thesubject Delta inverter technology used is feasible, it can be used in high power qualityrequirements of the occasion, in order to achieve the protection of electrical equipment.