Title: Model Improvement and Experimental Verification of Microturbine Generation System
作者: 王成山; 高 菲; 李 鵬; 郭 力; 黃碧斌; 丁承第
天津大學智能電網教育部重點實驗室，天津 300072
Author(s): WANG Cheng-shan; GAO Fei; LI Peng; GUO Li; HUANG Bi-bin; DING Cheng-di
Key Laboratory of Smart Grid of Ministry of Education，Tianjin University，Tianjin 300072，China
關鍵詞: ; 微型燃氣輪機; 暫態仿真; 實驗驗證
Keywords: ; microturbine; transient simulation; experimental verification
分類號: TM796
DOI: -
文獻標識碼: A
摘要: 對微型燃氣輪機發電系統的原動裝置、高速永磁同步發電機、整流器和逆變器及相應控制器、濾波器等各部分進行了數學建模和暫態仿真，并利用微型燃氣輪機系統的實驗數據分別對仿真系統穩態運行點和暫態過程的仿真模型進行了改進．將微燃機輸入改進為變量的非線性組合形式，并根據微燃機輸入輸出關系和實驗數據進行擬合確定相關參數，提高了微燃機穩態輸出的模擬精度．在微燃機和逆變器指令中增加速率限制環節，能夠有效地模擬出微燃機熱力學的延遲特性，在功率指令變化時提高暫態響應曲線的擬合度．最后對實驗數據和仿真結果進行比較，驗證了所提改進模型的適用性和有效性．
Abstract: The microturbine generation system，which was composed of microturbine，high speed permanent mag-net synchronous generator，converter，inverter，controller and filter，was modeled and simulated. The simulation model was improved both in steady operating points and transient process with the experimental data of a practical microturbine generation system. The microturbine input of variables nonlinear combination enhanced the microturbine output accuracy in steady state. The relevant parameters were calculated through data fitting based on the input-output relationship. The rate limiter，which reflected the delay characteristic of thermodynamic process，was applied in the power commands of the microturbine and inverter to improve the dynamic fit. Finally，the comparison between ex-perimental data and simulation results verified the applicability and effectiveness of the model proposed in this paper.
