當電力轉換器使用於電力系統時，由於其非線性的特性會為系統
帶來諧波，而諧波透過系統傳遞，將造成系統損耗增加，降低電力品
質，隨著現代電力系統中電力轉換器的使用不斷增加，對於用以系統
規劃及諧波分析的整合電力轉換器諧波潮流分析工具需求因此相應
而生。
本文提出一個整合諧波潮流分析工具JOHNPBO(Joint Harmonic
Net-flow Program Based on OpenDSS)，JOHNPBO 建置於Matlab 以及
OpenDSS，其中系統的電力轉換器模型均建模於Matlab，而電網建模
於OpenDSS，藉由兩個模型的整合，可以在各種情況下準確處理的諧
波問題，為了驗證本文所提出諧波潮流分析工具，將模擬結果與
PSCAD/EMTDC 進行比較對照後，也展現了兩者間模擬結果高度的
對應。

Due to the non-linearity of power converter, it is one of the main
harmonic sources in the power system. Harmonics propagating through the
system will increase system power losses and reduce power quality. With
ever increasing use of power converters in the modern power system, a
harmonic power flow program incorporating multiple power converter is
needed for system planning and harmonic analysis.
This thesis proposes an integrated harmonic power flow analysis
program, called JOHNPBO (Joint Harmonic Net-flow Program Based on
OpenDSS). JOHNPBO is built upon OpenDSS and Matlab. All the power
converter are built in Matlab while a power network constructed in
OpenDSS. By interfacing the two models, one is able to obtain accurate
harmonic problem under various condition. To demonstrate the validity of
the proposed harmonics power flow analysis program, all the results are
compared with PSCAD/EMTDC, and highly agreeable results between the
two tools are shown.

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