永磁同步電機 |
超過IE4效率標準的OMP系列超高效節能永磁同步電機,采用高性能稀土永磁材料和變頻技藝,無編碼器矢量控製運行,內插磁鋼結構,具有節能省電,高效、運行可靠、安裝互換性好的優點。
商品優勢
2.該系列商品基本轉速為750~3000rpm,功率由1.5kW~450kW,SF=1.2,可衍生出轉速範圍80~10000rpm的變頻永磁同步電動機以及自啟動永磁電機。
永磁電機與異步電機的特性對比
永磁同步電動機的可靠性和穩定性
1.電機采用高性能的钕鐵硼永磁材料
2.選用耐溫較高的磁鋼牌號(耐溫可達155度、200度),確保電機即使適度過載或較高環境溫度時仍能穩定使用而不會退磁(電機溫升為B級)。
【註:特殊應用選型請聯絡我們】
3.電機與變頻器均帶熱保護元件。

商品應用範圍
商品技藝標準
特點 Characteristic |
異步電機 Asynchronous motor |
永磁電機 Permanent magnet motor |
效率 Efficiency |
低 Low~High |
高 Super High |
功率因數 Power factor |
低,無功電流大,加大了電網負荷,有時需増加電補償器。 Low PF, and with large inactive current. PF compensator capacitor could be needed. |
高,無轉子感應電流,電網中不需安裝補嘗器 Highest PF, no need for PF compensator.
|
控製特性 Control characteristics |
差 Poor |
好 Good |
體積 Volume |
大 Large |
小,正常縮小兩個核心高,重量輕,約相當於同功率異步電機重量的60%。 Small, usually two frame sizes of reduction, light weight, equivalent to 60% of the weight of the asynchronous motor with same rating. |
啟動性能 Start performance |
工頻電直接啟,起動電流大,對電網有沖擊,不允許多次啟停 Direct one line starting, large starting current, has impact to the electricity grid, and frequent starts are not allowed. |
變頻,恒轉矩啟動,允許多次啟停 Frequency drive, constant torque start, frequent starts are allowed.
|
轉子結構 Rotator structure |
簡單,鼠籠 Simple, squirrel cage
|
復雜,內貼或表貼磁鋼 Complex, in-slot or surface sticking of magnetic steel. |
總成本 Total cost |
初期投入少,後期用電多,總成本高 Low purchase cost but with large amount of electricity consumption in the later stage, high total cost.
|
初期投入貴,後期比異步省電,總成本低,運行200天可回差價。 Relative higher purchase cost however with lower total cost from the saving on electricity during operation. The return of price difference is about 100 operation days. |
商品使用環境
舉例說明(按0.5元/度計算,22KW永磁電機運行200天可節電1900元,相當於200天收回電機采購價差)
型號 Type |
功率 Power |
頻率 Frequency |
電壓 Voltage |
電流 Current |
效率% Efficiency |
功率因數PF |
以數量1臺,連續運行200天節電(度) Saving on electricity for 1pc of 22kw PM motor during operation for 100 days (KWH) |
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恒轉矩轉速 Constant torque speed |
負荷 (%) Load (%) |
||||||||||
3000 |
2100 |
900 |
100 |
50 |
25 |
||||||
OMP22-160 |
22 |
100 |
370 |
38.3 |
94.4 |
94 |
90.3 |
0.95 |
0.95 |
0.95 |
1899 |
IE2-180M-2 |
22 |
50 |
380 |
41.1 |
91.3 |
89.5 |
79.4 |
0.89 |
0.89 |
0.89 |
|
IE3-180M-2 |
22 |
50 |
380 |
40.5 |
92.7 |
91.2 |
83 |
0.89 |
0.89 |
0.89 |
873 |
以上純屬效率提升帶來的節電效益,不包括變頻降速帶來的節能,以風機負載為例的變頻節電詳見下圖
轉速n% RPM (n%) |
風量(Q%) Fluid Load (Q%) |
頻率 Frequency |
風壓F% Wind pressure |
軸功率P% Shaft power (P%) |
100 |
100 |
50 |
100 |
100 |
90 |
90 |
45 |
81 |
72.9 |
80 |
80 |
40 |
64 |
51.2 |
70 |
70 |
35 |
49 |
34.3 |
60 |
60 |
30 |
36 |
21.6 |
50 |
50 |
25 |
25 |
12.5 |
顯然,變頻控製系統的節能效果是十分突出的,請見下圖的比較曲線。
當風機效率一定,調節風量微小的變化時,轉速可成比例下降,則風機的軸功率成立方關系下降。在滿足工藝要求的前提下,若風機轉速有富余10%,將可節省電耗27.1%,若風機的轉速富余20%,將可節省電耗48.8%。由此可見,風機、水泵類負載,其節電效果將是非常明顯。
