Voltage sag monitoring device configuration method considering dynamic network reconfiguration (DNR)
A monitoring device and dynamic reconfiguration technology, applied in measurement devices, circuit devices, AC network circuits, etc., can solve problems such as reducing the observability of voltage sags, and achieve the effect of high engineering application value
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[0041] The present invention will be further described in detail below with reference to the drawings and specific embodiments.
[0042] As the economic loss of production caused by voltage sag is becoming more and more serious, it is necessary to install voltage sag monitoring device. However, due to cost issues, it is not necessary to install voltage sag monitoring devices on all bus bars. Therefore, it is of engineering significance to study the optimal configuration of voltage sag monitoring devices. Existing research is carried out under a certain grid topology when optimizing the configuration of monitoring points. However, the actual situation is that the application of DNR will directly affect the changes in the network topology, resulting in changes in the impedance matrix of the grid, and the formula for short-circuit calculation needs to be changed accordingly, which may reduce the observability of voltage sags. The present invention is a method for configuring a vol...
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