A method of detecting the frequency of a power grid based on a reduced dimension observer and a measuring device
The invention belongs to the technical field of power grid frequency detection and provides a method of detecting the frequency of a power grid based on a reduced dimension observer and a measuring device. The method of detecting the frequency of a power grid based on a reduced dimension observer co...
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| creator | MA BOYUAN LI JIANWEN ZHANG JIE ZHANG JUXIANG NIE HONGXIANG DAI ZHIYONG HOU YE |
| description | The invention belongs to the technical field of power grid frequency detection and provides a method of detecting the frequency of a power grid based on a reduced dimension observer and a measuring device. The method of detecting the frequency of a power grid based on a reduced dimension observer comprises the steps of collecting a single-phase voltage of a power grid; building an observer and a self-adaptive law; calculating the frequency of the power grid. The measuring device comprises a voltage sensor, a signal amplifier, a filter, a frequency detector and a serial port output module. The voltage sensor collects a single-phase voltage of a power grid; the collected signals are processed via the signal amplifier and the filter and then sent to the frequency detector; via estimation of the frequency detector, the frequency of the power grid is output via the serial port output module. The research target of the method is a power grid with permanent magnet synchronous motors as driving motors; the power grid |
| format | Patent |
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The method of detecting the frequency of a power grid based on a reduced dimension observer comprises the steps of collecting a single-phase voltage of a power grid; building an observer and a self-adaptive law; calculating the frequency of the power grid. The measuring device comprises a voltage sensor, a signal amplifier, a filter, a frequency detector and a serial port output module. The voltage sensor collects a single-phase voltage of a power grid; the collected signals are processed via the signal amplifier and the filter and then sent to the frequency detector; via estimation of the frequency detector, the frequency of the power grid is output via the serial port output module. 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The method of detecting the frequency of a power grid based on a reduced dimension observer comprises the steps of collecting a single-phase voltage of a power grid; building an observer and a self-adaptive law; calculating the frequency of the power grid. The measuring device comprises a voltage sensor, a signal amplifier, a filter, a frequency detector and a serial port output module. The voltage sensor collects a single-phase voltage of a power grid; the collected signals are processed via the signal amplifier and the filter and then sent to the frequency detector; via estimation of the frequency detector, the frequency of the power grid is output via the serial port output module. The research target of the method is a power grid with permanent magnet synchronous motors as driving motors; the power grid</abstract><oa>free_for_read</oa></addata></record> |
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| title | A method of detecting the frequency of a power grid based on a reduced dimension observer and a measuring device |
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