本論文提出一應用於內藏型永磁馬達驅動之混合式儲能系統，此儲能系統可根據馬達的操作狀態切換不同動作模式，減少電池的充放電次數，實現節能及電池壽命的延長。本文之混合式儲能系統由電池、雙向錯相式兩相直流轉換器，以及超級電容組成。當馬達在加速時，電池經由直流轉換器提供穩定的輸出電壓給馬達驅動器。同時，超級電容也直接對驅動器釋放能量，協助電池分擔馬達加速時所需的大電流。當馬達操作在高定速運轉時，電池經由旁路二極體直接對驅動器供電，減少直流轉換器的開關損失，達到節能效果以利長時間運行。當馬達操作於再生制動模式時，煞車減少的動能會轉換成電能對超級電容或電池充電。若將馬達產生的電流直接對電池回充，會使電池壽命減短。為避免此狀況，此時產生的電流由超級電容先吸收。若超級電容已充飽，再經由直流轉換器提供低漣波的穩定電流對電池回充。
為設計混合式儲能系統的控制邏輯，故以Simulink®模擬一應用於內藏型永磁馬達之具弱磁機制的磁場導向控制，分析驅動系統特性。然後設計雙向錯相式兩相直流轉換器規格及元件，並以Simplis®驗證參數設計。分析驅動系統及直流轉換器特性後，將電池、直流轉換器以及超級電容結合成一儲能系統來模擬。控制邏輯則根據轉速命令與超級電容的電壓切換動作模式，達到節能並延長電池壽命的目的。最後，實作一1 kW雙向錯相式兩相直流轉換器雛型電路，量測其關鍵波形及不同負載電流下的電路效率。

This thesis presents the HESS (Hybrid Energy Storage System) for an IPMSM (Interior Permanent Magnet Synchronous Motor) drive, which can switch different modes based on the motor operating conditions to reduce the charge/discharge time of batteries for saving energy and extending the batteries lifetime. The HESS is composed of batteries, a bidirectional interleaved two-channel DC-DC converter, and a super-capacitor. When the motor is accelerating, batteries provide steady voltage to the inverter through bidirectional converter. In the same time, the super-capacitor also releases energy to inverter to share large load current. In high constant speed mode, the battery provides energy to inverter through the shunt diode to save energy for long-term operation. During regenerative braking, the current generated by motor is charged into the super-capacitor. If the current is directly charged into batteries, the lifetime will be shortened. Once the super-capacitor is fully charged, the super-capacitor will discharge through bidirectional converter, which can provide low-ripple voltage for batteries.
To design the control algorithm for HESS, an FOC with flux-weakening for IPMSM is simulated with Simulink® to analyze the motor drive system. Then the bidirectional interleaved two-channel DC-DC converter is designed and simulated by Simplis® to verify the parameters design. After analyzing the drive system and converter, HESS with control algorithm is simulated, which can switch different modes based on speed command and super-capacitor voltage to achieve saving energy and extending the batteries lifetime. Finally, a 1 kW prototype circuit of bidirectional interleaved two-channel DC-DC converter is implemented and tested to measure the key waveforms and verify the efficiency at different load conditions.

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