植基於燃料電池與鋰離子電池混合動力之電動車研製

本研究開發智慧電動車之直流電源供電系統，構想以一創新的質子交換膜燃料電池與鋰離子電池混合供電的架構來提供電動車所需的動力。混合動力中的質子交換膜燃料電池提供電動車所需的基載或續航力，並搭載鋰離子電池供應電動車所需的尖載或瞬間加速動力。藉著本創新的混合控制電路結合燃料電池與鋰離子電池可以互補兩種電源的不足，讓各電源的優點有效發揮，為能主動控制燃料電池出力，本專題使用合適的雙向轉換器，藉此雙向轉換器來控制燃料電池與鋰離子電池混合供電的電流潮。本供電系統需要一智慧型電力管理平台將控制燃料電池出力在固定的電壓操作點上，此智慧型電力管理平台要能即時提供電動車負戰所需的電力，也要兼顧燃料電池的發電效率與鋰離子電池的蓄電量狀況（SoC）。智慧型電力管理平台也包含鋰離子電池的管理系統，用來監控鋰離子電池充放電並做適當的保護，同時提供混合發電系統控制器即時殘留電量。本專題將所開發的先進混合動力系統安裝在一高爾夫電動車上做測試，測試結果顯示本先進混合動力系統可兼顧電動車的續航力與瞬間加速的高動力。

關鍵字

混合動力系統；質子交換膜燃料電池；鋰離子電池；雙向直流轉換器

並列摘要

This study developed a DC power system for a hydrogen powered EV. An innovative hybrid power system composed of PEMFC and lithium ion battery was proposed and tested in the project. In the hybrid power system, PEMFC provided the base load or cruise power for the EV. Lithium ion battery was controlled to meet the peak load or acceleration power for the EV. The current hybrid system intended to fully utilize good traits of fuel cell's high energy density and lithium ion battery's high power density to power the EV. A power management system was designed and implemented to manage the power flows of both electrochemical power sources used in the current study. In order to actively control the power flow of the fuel cell, this study used a two-way converter. This two-way converter was designed to maintain a constant DC bus voltage of the system and facilitate the power flow in and out of the lithium ion battery. An advanced battery management system was also developed in the current study mainly to monitor the state of charge of the battery for better protection. This advanced hybrid power system was installed on a commercial golf car and extensive tests were conducted to evaluate the performance of the hybrid system. Tests showed good drivability by adopting the current hybrid system in both high covered range per charge of hydrogen and good response for acceleration and climbing slopes.

並列關鍵字

Hybrid Power System ； PEMFC ； Lithium Ion Battery ； Two-Way Converter

國際替代計量

植基於燃料電池與鋰離子電池混合動力之電動車研製

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