超級電容器儲能特性研究

摘要：基于超級電容器等效電路模型，本文推導了超級電容器等效阻抗函數，研究了恒流充電時的超級電容器的儲能基本特性。并結合實驗方法，對超級電容器的端電壓波動、容量、循環壽命、漏電流進行了廣泛測量。在理論分析與實驗對比的基礎上，根據超級電容器的內部結構探討了部分特性變化的理論原因，為高效應用超級電容器的儲能研究提供了科學依據。 敘詞：超級電容 恒流充電 新能源 Abstract：Based on equivalent circuit models of a super-capacitor, this paper has proposed an equivalent-resistance function for super-capacitors and investigated basic characteristics under constant-current charging conditions. By use of experimental testing methodology, termination voltage ripples, capacitance, cycle-lifetime and leakage current have been tested and analyzed. By comparing both theoretical and experimental results, the reason for partial characteristics variation of super-capacitors internal structure has been investigated and discussed. These chievements are essential for some critical applications of super-capacitors. Keyword：super-capacitor, constant-current charging, new energy