醫療儀器電力諧波分析與改善

Analysis and Improvments of Medical Equipment Power Harmonic

黃傑文(Chieh-Wen Huang)

指導教授 ： 曾國雄

國立臺北科技大學/電資學院/電機工程系所/碩士(2012年)

摘要

隨著全民健康保險制度的全面推行、改革以及國人醫療需求的大幅成長，醫療機構為拓展業務量，紛紛採購高科技醫療儀器，利用高科技儀器來從事市場競爭。因此，大型化及大量運用電力電子的醫療設備如雨後春筍般，林立在醫療院所。然而，這對醫院原有的供電系統無疑是一種危害，這些非線性設備使得系統不平衡與諧波危害的現象日趨嚴重。本論文利用電力品質分析儀，對醫療機構的醫療儀器供電迴路進行諧波量測與分析。這些量測的樣本，可以提供跟醫療院所有關的機電維護人員快速瞭解醫療設備諧波屬性及對供電系統可能的危害程度，並能作為未來改善既有供電系統或設計新建系統的參考依據。另外，舉一實際案例做為改善個案，分別規劃被動式諧波濾波器及主動式諧波濾波器改善案，之後選擇主動式為執行方案並加以驗證。

關鍵字

電力品質 ； 諧波量測 ； 醫療設備諧波改善

並列摘要

As the implementation and the reformation of the National Health Insurance, along with the rising medical needs in Taiwan, medical institutions purchase high-tech medical equipment in order to increase business volume; using technology to engage in market competition. Therefore, large-size and extensively electronic-based medical facilities sprang up in hospitals. However, this is no doubt a threat to the original power supply systems. These nonlinear facilities will bring increasing deterioration of system unbalance and harmonics hazards. This paper measured and analyzed the medical facilities’ power supply system by using power quality analyzer. The measured samples can help the mechanical and electrical maintenance personnel quickly understand the harmonic properties and its possibilities to damage the power supply system of the medical equipment, and also become the reference for future improvement on the existing power supply system or designs for new systems. In addition, the paper planned improving program aimed at the measurement case; the improvement chose one of the power supply main circuits, including passive and active harmonic filters, as principal planning. After researching, the paper put one of the programs into actual implementation as improvement measures, and verified designed program’s accuracy and the results after modification.

並列關鍵字

Power Quality ； Harmonic Measurment ； the improvment of Medical Equipment Harmonic

參考文獻

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