同步相量量測器應用準確的GPS同步時間，達到廣域的電力即時同步量測，為一新型電力品質監測裝置，其在未來大量再生能源併網的新型智慧電網，可即 時及全面的了解整個電力系統之狀態，進而提昇電網的安全性及可靠性。安裝至 電網之PMU可能採購自不同的製造商，產品品質良莠不齊，而且當廣域量測系 統能夠正常運轉之後，PMU和一般的量測儀器一樣，也需要定期校正，以確保其 量測的準確性。因此，在PMU出廠前、電網上用於廣域量測系統之PMU運轉前 及運轉後定期維護時都必須確認PMU是否符合國際標準規範的要求。鑑於台灣 智慧電網PMU之檢測需求，國家度量衡標準實驗室建置了PMU自動化檢測系 統。此系統依照IEEE Std C37.118.1-2014 PMU標準進行檢測。檢測結果可以了解 PMU的量測性能，以確保智慧電網安全性及可靠性。

Based on the accuracy GPS synchronized time, PMUs can achieve the real-time wide area measurement. PMUs are a new type of power quality monitoring systems, and they could real-time and completely understand the condition of whole power system when a large amount of renewable energies is interconnected into the smart grid in the future. Thus, the safety and reliability of smart gird could be improved. These PMUs installed in the smart grid may be sourced from different manufacturers, and their product quality varies greatly. Moreover, as general measurement instruments, PMUs also need to be periodically calibrated and tested after they normally operate in the wide area measurement system (WAMS). Therefore, PMUs are required to conform to the international standard before they are sold out and used in WAMS, and when they are periodically maintained. In consideration of PMU test and calibration requirements, this research set up a PMU test system in the national measurement laboratory. This test system can carry out a series of compliance tests according to IEEE Std C37.118.1-2014. The test results could be used to know the measurement performance of PMUs, to ensure the safety and reliability of smart grid.