一种太阳能板发电异常测试方法包含：利用一电能转换器直接控制一太阳能电池模块而操作于数个预定电压点，并利用该数个预定电压点量测获得数个量测电流；利用该数个预定电压点及数个量测电流计算数个第一功率数据；及利用该数个第一功率数据与一第一发电特性曲线进行比对；或，利用该电能转换器直接控制该太阳能电池模块而操作于数个预定电流点，并利用该数个预定电流点量测获得数个量测电压；利用该数个预定电流点及数个量测电压计算数个第二功率数据；及利用该数个第二功率数据与一第二发电特性曲线进行比对，以测试该太阳能电池模块是否发电异常。

A power generation abnormality detection method includes: operating a power converter to controllably operate a solar cell module at a plurality of predetermined voltage points to obtain a plurality of measured currents; calculating the predetermined voltage points and measured currents to obtain a plurality of first power data; comparing the plurality of first power data with a first PV curve; or operating the power converter to controllably operate the solar cell module at a plurality of predetermined current points to obtain a plurality of measured voltages; calculating the predetermined current points and measured voltages to obtain a plurality of second power data; comparing the plurality of second power data with a second PV curve.