22 Jun 2011
UM’s power electronics research team receives a national invention patent
澳大電力電子研究獲國家發明專利

(From left) Core members of UM's power electronics research team PhD candidate Mr. Lam Chi Seng, Dr. Wong Chi Kong, master graduate Mr. Lok Io Keong, Prof. Wong Man Chung, and Dr. Dai Ningyi.
(左起) 澳大電力電子研究團隊主要成員:博士生林智聲、黃志剛博士、碩士生陸耀強、黃民聰副教授、戴寧怡博士


"Capacitive-Coupling STATCOM and Its Control" and "DC Voltage Self-balancing Soft-switching Three-level Inverter", both developed by the Power Electronics Laboratory (PE Lab) of the University of Macau (UM), recently were granted Macao's first National Invention Patent in the field of power electronics technology and the National Patent for Utility Model by the State Intellectual Property Office of the People's Republic of China.

In technologically advanced countries like the United States and Japan, traditional static synchronous compensators (STATCOM) are widely used for power system reactive power compensation, in order to enhance the efficiency and stability of the power system. The "Capacitive-Coupling STATCOM and Its Control", developed by Prof. Wong Man Chung, PhD candidate Mr. Lam Chi Seng and Dr. Dai Ningyi of the Department of Electrical and Electronic Engineering, Faculty of Science and Technology, can greatly reduce the DC capacitor voltage requirement of traditional STATCOM, thereby reducing the initial cost and switching losses of the compensators.

The "DC voltage Self-balancing Soft-switching Three-level Inverter", developed by master graduate Mr. Lok Io Keong, Prof. Wong Man Chung, Dr. Dai Ningyi and Dr. Wong Chi Kong, can simultaneously balance the three-level inverter dc capacitor voltages and lower the switching losses without affecting the inverter output performance during operation.

UM's power electronics research team began the two projects in 2006 with the great support of the Science and Technology Development Fund of Macao SAR and the University of Macau Research Fund. The objective of these two projects is to reduce the initial cost of the compensator, reduce its losses, and optimize its performance and efficiency. Many years of efforts finally bore fruit. These two national patents signal an important step for UM in power electronics, and also lay a solid technical foundation for the further development of power electronics and energy saving techniques in Macao.

澳門大學兩項電力電子研究成果"通過容性阻抗連接的靜態同步無功補償裝置及控制方法"及"直流電壓自平衡軟開關三電平逆變器",通過國家知識產權局嚴格的審批,分別獲得國家發明專利及實用新型專利。前者為本澳在高科技電力電子研究領域的首個國家發明專利。

在科技先進的國家如美國、日本等地,傳統的靜態同步無功補償裝置(STATCOM) 被廣泛應用於電網的無功補償,從而提升電網的效率及穩定性。澳大科技學院電機及電子工程系黃民聰副教授、博士研究生林智聲和戴寧怡博士共同研發的"通過容性阻抗連接的靜態同步無功補償裝置及控制方法"能大大減小傳統靜態同步無功補償裝置(STATCOM)的直流電容電壓,降低整個裝置的成本以及開關損耗,因而獲國家知識產權局授予發明專利。

另外,由碩士生陸耀強、黃民聰副教授、戴寧怡博士和黃志剛博士研發的"直流電壓自平衡軟開關三電平逆變器"獲國家知識產權局授予實用新型專利。該逆變器能在運作時不影響逆變器輸出效果的情況下,同時實現平衡三電平逆變器直流電容電壓及降低開關損耗的目的。

自二○○六年起,在澳門科學技術發展基金和澳大的大力支持下,澳大電力電子研究團隊展開了這兩個研究項目,目標在於降低補償裝置成本、減小損耗、優化裝置性能及效率。經過多年努力,最終獲得兩項國家專利權,是澳大在電力電子研究發展的重要一步,同時為澳門在電力電子科研及節能技術發展奠定了穩健基礎。