摘要
近年來因科技快速發展，能源需求大增，電力電子控制架構已成為電力系統的重要組成的一部分，其中以串聯補償器提供了控制電網虛功潮流為最常見的方法，可以提高長距離大容量之輸電能力，也能增加系統的穩定性。在本文中可分為兩大部份，皆以一串聯電壓源型轉換器為主要架構，在PSCAD/EMTC模擬軟體建構出一組三相220V,2kVA的串聯同步補償控制器(Static Synchronous Series Compensator, SSSC)之模型，第一部分之功能為對線路補償所需之實、虛功功率，也能對轉換器直流側電壓進行控制，其控制架構為在同步框d-q軸中，建立內外雙迴圈之系統。實作以數位訊號控制器(Digital Signal Processor, DSP)作為主要控制器，建立一套小型實驗平台驗證其潮流補償效果，從實作結果可以知道設計之控制架構其補償效果可與模擬結果相互驗證，達到補償控制之目的。第二部份則於模擬軟體中模擬動態電壓恢復器(Dynamic Voltage Restorer, DVR)，以重複控制(Repetitive Control)理論作為設計補償命令控制之基礎，提高系統在故障發生時回至穩態之能力及消除線路之諧波成份。從模擬結果可以知道動態電壓恢復器能在系統發生故障時即時反應，補足負載端電壓減少的能量，而對諧波補償部分也有不錯的效果，使總諧波干擾(Total Harmonic Disturbance, THD)值從3%補償至0.5%。

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