新穎的Buck-Boost型正弦交流穩壓器

摘要：新穎的Buck-Boost型正弦交流穩壓器電路結構，由輸入周波變換器、高頻儲能式變壓器、輸出周波變換器以及輸入、輸出濾波器構成，能夠將一種不穩定的劣質交流電變換成另一種同頻穩定的優質正弦交流電。本文對Buck-Boost型正弦交流穩壓器的電路拓撲、控制方案等進行了分析研究。原理試驗結果表明，Buck-Boost型正弦交流穩壓器具有強的負載適應能力、優良的穩壓性能和高質量的輸出正弦波形等優點。 敘詞：正弦交流穩壓器；Buck-Boost型；周波變換器 Abstract：Novel circuit configuration of the Buck-Boost mode regulated sinusoidal ac power supply is constituted of input cycloconverter, high frequency storage transformer, output cycloconverter, input and output filters. The unsteady input AC voltage with high harmonic can be transformed into the steady sinusoidal voltage with low harmonic. The circuit topology and control strategy are analyzed in this paper. Principle test results show that the Buck-Boost mode regulated sinusoidal ac power supply has many advantages such as strong load adaptability, perfect voltage-regulation performance and good output sinusoidal waveforms. Keyword：regulated sinusoidal ac power supply；buck-boost mode；cycloconverter