臺灣博碩士論文加值系統

本論文旨在實現車用空調散熱系統之直流無刷馬達驅動器的研製，應用於重型拖運卡車不運轉散熱系統冷凝器風扇的驅動，其直流無刷馬達驅動器為一具有霍爾位置感測器並採用180度導通方式，使其直流無刷馬達於散熱系統運轉效率近80%，並依據空調系統的散熱需求及其所提供的PWM訊號來驅動風扇轉速。

車用空調直流無刷馬達驅動器必須符合車輛電子系統操作環境的特性要求，本文提出直流無刷馬達驅動器的研製其具備主動式斷路器，以防止車用蓄電池逆極性使用及靜態電流的抑制於直流無刷馬達驅動器電源輸入端，以降低直流無刷馬達驅動器於車輛閒置時功率的損耗，並結合主動式暫態突波電壓保護，以避免車輛電子系統而來之暫態突波電壓及負載突降。經由實驗結果得知所研製的直流無刷馬達驅動器，符合車輛空調散熱系統操作環境的性能要求。

The objective of this thesis is to design and implement Brushless DC Motor (BLDCM) drives for automotive Heating Ventilation and Air Conditioning (HVAC) system which is used for fan driving application of condenser in heavy duty trucks with No-Idle Thermal Environment (NITE) system. The BLDCM drives are with Hall position sensors and 180° six-step commutation method. The efficiency is up to 80%. The fan is driven by BLDCM drive via PWM control signal based on the requirement of HVAC cooling system.

The designed BLDCM drives for HVAC system should meet the requirement of vehicle electrical characteristics. The implemented BLDCM drives consist of active breaker for battery reverse polarity protection and quiescent current to reduce the power consumption when the BLDCM of vehicle is in idle mode. This BLDCM drive is integrated with active transient voltage protection which can avoid surge voltage and load dump. The experimental results confirm that design and implementation of BLDCM drive meet the requirement of automotive HVAC cooling system.

目 錄

中文摘要 i
ABSTRACT ii
誌 謝 iii
目 錄 iv
表目錄 v
圖目錄 vi

第一章 緒論 1
1.1 研究動機 1
1.2 研究目的 7
1.3 內容大綱 8

第二章 車用空調直流無刷馬達構造及原理 9
2.1 車用空調直流無刷馬達構造及驅動器原理 9
2.1.1 車用空調直流無刷馬達結構及特性 9
2.1.2 車用空調直流無刷馬達驅動器原理 13
2.1.3 車用空調直流無刷馬達之磁極位置感測器 22
2.2 車用空調直流無刷馬達之電路方程式與動態方程式 27
2.3 車用空調直流無刷馬達性能要求及風扇散熱特性 31

第三章 車用空調直流無刷馬達驅動器的研製 38
3.1 車用空調直流無刷馬達驅動器架構及功能 38
3.2 車用空調直流無刷馬達之霍爾感測器的對位 42
3.3 主動式斷路器之蓄電池逆向電源極性保護的設計 44
3.4 主動式暫態突波電壓保護的設計 47
3.5 車用空調直流無刷馬達驅動器過電壓及過電流保護的設計 50
3.6 車用空調直流無刷馬達驅動器靜態電流抑制的設計 59
3.7 車用空調直流無刷馬達驅動器速度控制的設計 62

第四章 實驗系統與結果 68
4.1 實驗系統及規範 68
4.2 實驗結果 74
4.2.1 車用空調直流無刷馬達驅動器的穩態特性實驗 74
4.2.2 車用空調直流無刷馬達驅動器電氣特性的暫態響應實驗 106

第五章 結論與未來工作 116
5.1 結論 116
5.2 未來工作 116

參考文獻 117
附錄 120

參考文獻


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