SMC MKB32-20R-A73HL ST公司的STEVAL-ISV001V1是采用STP160N75F3的1 kW太陽能逆變器解決方案，輸入電壓20 V到28 V，交流正弦波輸出電壓230 Vrms（50 Hz），輸出功率1kW，效率90％，DC / DC轉換部分開關頻率100kHz時，DC / AC部分開關頻率16kHz的。本文介紹了離線UPS系統方框圖，PV轉換中的DC / AC轉換器方框圖以及STEVAL-ISV001V1評估板主要指標，方框圖，電路圖，材料清單和1 KW逆變器PCB元件布局圖。
在UPS系統中，始終使用DC-AC轉換器將來自電池的DC電源轉換為用于為負載供電的AC電源。基本方案還包括電池組，將來自電網的交流電轉換為直流電的電池充電器，以及在線路電壓下降或發生故障時從市電或儲能元件提供負載的轉換開關。
圖1.離線UPS系統
框圖圖2的框圖顯示了另一個始終需要DC-AC轉換器的應用。在這種情況下，該轉換器是獨立光伏系統中常用的轉換方案的一部分。附加的DC-DC轉換器充當電池充電器，同時執行功率點跟蹤算法（MPPT），這對于化PV陣列的能量產出是必不可少的。當存在太陽輻射時，電池組始終存在以存儲能量，并在夜間或日照低時釋放能量。
圖2.PV轉換中的DC / AC轉換器框圖
STEVAL-ISV001V1評估板
STEVAL-ISV001V1演示板實現了1 kW雙級DC-AC轉換器，適用于電池供電的不間斷電源（UPS）或光伏（ PV）獨立系統。該轉換器由20 V至28 V的低直流輸入電壓供電，并且能夠在單相交流負載上提供高達1 kW的輸出功率。雙級轉換拓撲可滿足這些功能，包括高效的升壓推挽式DC-DC轉換器，可產生穩定的高壓DC總線和正弦H橋PWM逆變器產生50 Hz，230 Vrms的輸出正弦波。擬議系統的其他相關特征是在寬輸出負載范圍內的高功率密度，高開關頻率，電流隔離和效率大于90％。
圖3.1 KW逆變器機箱圖
1 KW逆變器系統指標：
該STEVAL-ISV001V1電路板實現了一個1 kW的雙級DC-AC轉換器，適用于電池供電的不間斷電源（UPS）或光伏（PV）獨立系統。
該轉換器由20至28 V的低直流輸入電壓
供電，并且能夠在單相交流負載上提供高達1 kW的輸出功率。借助包括高效升壓推挽式DC-DC轉換器在內的雙級轉換拓撲，這些特性得以實現，該轉換器可產生穩定的高壓DC總線和正弦HBridge PWM逆變器，以產生50 Hz，230 Vrms的輸出正弦波。提出的系統的其他關鍵特性是在寬輸出負載范圍內的高功率密度，高開關頻率和高于90％的效率。
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