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工業技術研究院

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技術名稱: 無感測向量控制技術

技術簡介

因節能議題日漸重要,使得變頻驅動技術發展相當迅速。其中永磁同步馬達更是節能的關鍵。而驅動永磁同步馬達必須得知其轉子磁極位置, 一般使用霍爾元件或光編碼器取得。但由於空調系統中馬達放置於壓縮機內並無法使用感測元件來求得轉子位置,因此必須開發無感測驅動技術來帶動壓縮機內的永磁同步馬達。本技術以向量控制為整體架構,並以滑動模式觀測器來估測轉子磁極位置。向量控制與傳統方波控制最大差異在於其電流波形是正弦波,可有效的降低震動噪音。同時此技術已匹配渦卷式壓縮機在壓縮機壽測機平台完成測試驗證。

Abstract

An increasingly important topic due to energy-efficient in recent years, the inverter–fed technology has developed rapidly. Permanent magnet synchronous motor (PMSM) is the key for energy conservation. In order to drive the PMSM, the rotor magnetic poles location was generally obtained from the Hall element or optical encoder. However, in air-conditioning system, the motor placed inside the compressor cannot use the sensing element to obtain rotor location because the high-pressure high-temperature environment, so it must develop a so-called sensorless drive technology. The technology uses vector control for the overall structure and sliding mode estimator to get the rotor magnetic pole location. The greatest difference between the vector control and the traditional square-wave control for the current waveform is sine wave. The sine wave vector control can reduce the vibration noise effectively. Finally the scroll compressor with vector control was examined on the compressor cycling tester.

技術規格

最大功率:3kW,輸入電壓:單相220VAC/60Hz,輸出電流:20A,馬達驅動方式:無感測向量控制驅動,電源轉換:具升壓型功率因數修正器(功因0.95以上)。

Technical Specification

MAX POWER:3kW, Input voltage:220VAC, Output Current:20A Motor control:sensorless vector control, Converter:active power factor correc -tion(power factor≧95%).

技術特色

變頻驅動永磁同步馬達必須得知其轉子磁極位置,一般使用霍爾元件或光編碼器取得。但由於空調系統中馬達放置於高壓高溫的壓縮機內並無法使用感測元件來得知轉子位置,因此本技術以向量控制為整體架構,並以滑動模式觀測器演算法載入馬達參數、電流資訊及輸入端電壓資訊計算永磁同步電機之應電勢電壓,同時再以應電勢電壓變量估測轉子磁極位置。

應用範圍

密閉型壓縮機驅動、家用風扇馬達驅動

接受技術者具備基礎建議(設備)

冷凍空調或家電製造廠商

接受技術者具備基礎建議(專業)

電力電子技術及撰寫韌體能力

技術分類 02 J空調設備研究

聯絡資訊

聯絡人:黃亮橋 節能設備技術組

電話:+886-3-5917637 或 Email:liang.qiao@itri.org.tw

客服專線:+886-800-45-8899

傳真:+886-3-5820250

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