| 詳細參數 |
|---|
控制器：按設定的程序工作，控制輸出方波的幅度與脈寬，使疊加為近似正弦波的交流電，驅動交流電動機。
控制
低壓通用變頻輸出電壓為380～650V，輸出功率為0.75～400kW，工作為0～400Hz，它的主電路都采用交—直—交電路。其控制經歷了以下四代。
1U/f=C的正弦脈寬調制(SPWM)控制：
其特點是控制電路結構簡單、成本較低，機械特性硬度也，能夠一般傳動的調速要求，已在產業(yè)的各個領域廣泛應用。但是，這種控制在低頻時，由于輸出電壓較低，轉矩受定子電阻壓降的影響比較顯著，使輸出大轉矩減小。另外，其機械特性終究沒有直流電動機硬，動態(tài)轉矩能力和靜態(tài)調速性能都還不盡如人意，且性能不高、控制曲線會隨負載的變化而變化，轉矩響應慢、電機轉矩利用率不高，低速時因定子電阻和逆變器死區(qū)效應的存在而性能下降，性變差等。因此人們又研究出矢量控制變頻調速。
【公 司】： 福建鴻飛達自動化科技有限公司福建省福州市高新區(qū)新保路正榮財富中心SOHO B幢8樓
產品價格以電話或者QQ詢價為準，發(fā)布價格不做參考，圖片也一樣
FR-HC2-55K
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FR-HC2-H110K
FR-HC2-H15K
FR-HC2-H160K
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FR-HC2-H75K
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FR-HEL-H0.4K
FR-HEL-H0.75K
FR-HEL-H1.5K
FR-HEL-H11K
FR-HEL-H15K
FR-HEL-H18.5K
FR-HEL-H2.2K
FR-HEL-H22K
FR-HEL-H3.7K
FR-HEL-H30K
FR-HEL-H37K
FR-HEL-H45K
FR-HEL-H5.5K
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FR-L740-0.75K-CHT
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FR-LU08
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FR-PU07BB-L
FR-RC-H15K
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FR-S520E-0.4K
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FR-S520E-1.5K
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FR-V7CBL15
FR-V7CBL30
FR-V7CBL5
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