Parameter Optimization in Cooling Module in 700T Traction Drive System

[[abstract]]本論文主要以700T列車牽引驅動系統—主變換裝置之換流裝置（Converter）及變流裝置（Inverter）運作用以達到列車推進及煞車的能力。在驅動模式時，主變換裝置會根據由列車駕駛員操作主控制器所傳送的脈寬調變訊號（Pulse Width Modulation，PWM）來進行調變輸出功率。在煞車模式時，主變換裝置則會接收由煞車電子控制單元（Brake Electronic Control Unit，BECU）所傳送的訊號進行煞車控制。當列車進行再生煞車（Regenerative Brake）時，主變換裝置會將驅動馬達所產生之電力經由列車主變壓器及集電弓裝置回生至25KV架空電力線系統（Overhead Catenary System，OCS）。主變換裝置在運轉過程其相關控制元件會產生許多熱，因此必須經由散熱系統將這些熱帶出裝置外以降低設備溫度。因此本論文將利用實驗設計之田口方法及雙反應曲面法找出影響主變換裝置散熱系統出風口溫度之主要因子，其為設備運作里程、入口濾網型式規格及變流裝置輸入限定電流值等之最佳化組合設計，以獲得最佳散熱裝置的輸入溫度及出風口溫度。[[abstract]]This main research and explain 700T trainset of thesis draws the system of propulsion and traction Converter and Inverter operation are used to reach the train traction and brake ability In the traction mode Converter/Inverter equipment will be according to pulse width modulation(PWM) signal from the master controller and adjusting/change the output power In the brake mode Converter/Inverter equipment will be received from the signals of Brake Electronic Control Unit(BECU) operation When the trainset perform regenerative brake the power of Converter/ Inverter equipment will return to OCS system via main transformer of trainset While Converter/Inverter equipment operating its relevant to control component and device can transpire hot must make these hot to take the device out of via heat radiator system Moreover in this thesis three factors including load value of the equipment operation mileage inlet-filter type of the radiator and limited set current value will be selected to evaluate the optimal design so as to provide a preferred inlet temperature of the radiator system by using Taguchi method and dual response surface method respectivel