Abstract: The present disclosure proposes a decomposition-coordination voltage control method for wind power to be transmitted to a nearby area via flexible DC. The method includes: initializing parameters; sending the parameters to wind power farms; for each of the wind power farms, establishing a voltage control optimization sub-model; solving the voltage control optimization sub-model to obtain a first optimal result; for the control center, establishing a voltage control optimization main model; solving the voltage control optimization main model to obtain a second optimal result; calculating a determination index based on the first optimal result and the second optimal result; and determining whether the determination index is convergent to an admissible value, if no, updating the parameters and returning to establishing the voltage control optimization sub-model.

Abstract: An active power distribution network multi-time scale coordinated optimization scheduling method and storage medium are provided. The method includes the following steps: performing long-time scale optimization scheduling of an active power distribution network; performing short-time scale rolling optimization scheduling on the basis of MPC of the active power distribution network according to an optimization result of the long-time scale optimization scheduling of the active power distribution network. By using a model prediction control method, taking the long-time scale optimization scheduling result as a reference, and performing short-time scale rolling correction, the optimization scheduling of the active power distribution network is achieved, thereby reducing unfavorable influences of prediction precision of a distributed power supply and a low-voltage load on the optimization scheduling.

Abstract: Systems and methods are disclosed to control a power inverter by extracting photovoltaic (PV) maximum power under a plurality of operating conditions as one or more reference variables; predicting the future behaviors of a PV output voltage as one or more controlled variables based on a current operational condition; generating one or more control signals for the H5 inverter that minimizes an error between the reference variable and the controlled variables; and controlling the power inverter with the one or more control signals.

Abstract: The disclosure provides a mixed-mode temperature measurement communication phase conductor and a temperature measurement communication system. The mixed-mode temperature measurement communication phase conductor includes: a stainless sleeving optical unit and a support line hinged with the stainless sleeving optical unit, wherein an aluminum wire is hinged outside the stainless sleeving optical unit and the support line; the stainless sleeving optical unit includes: multiple single-mode fibers and at least one multi-mode fiber, wherein fibers in the stainless sleeving optical unit are mutually hinged. The disclosure realizes whole-distance temperature measurement of conductor by setting the single-mode fiber to perform communication and the multi-mode fiber to perform temperature measurement.

Abstract: A method and a device for processing geological information is disclosed. The method for processing the geological information includes acquiring multiple geological image graphs, determining the relation between the image coordinate and the ground coordinate of each of the multiple geological image graphs by an imaging mode of geological images, and joining the multiple geological image graphs together according to the relation between the image coordinate and the ground coordinate of each of the multiple geological image graphs. Accordingly, large-scale ground images can be acquired by processing the geological images.

Abstract: The disclosure provides a mixed-mode temperature measurement communication phase conductor and a temperature measurement communication system. The mixed-mode temperature measurement communication phase conductor includes: a stainless sleeving optical unit and a support line hinged with the stainless sleeving optical unit, wherein an aluminium wire is hinged outside the stainless sleeving optical unit and the support line; the stainless sleeving optical unit includes: multiple single-mode fibres and at least one multi-mode fibre, wherein fibres in the stainless sleeving optical unit are mutually hinged. The disclosure realizes whole-distance temperature measurement of conductor by setting the single-mode fibre to perform communication and the multi-mode fibre to perform temperature measurement.

Abstract: Disclosed in the disclosure are a method and a device for processing geological information. The method for processing the geological information comprises: acquiring multiple geological image graphs; determining the relation between the image coordinate and the ground coordinate of each of the multiple geological image graphs by an imaging mode of geological images; and joining the multiple geological image graphs together according to the relation between the image coordinate and the ground coordinate of each of the multiple geological image graphs. The large-scale ground images can be acquired by processing the geological images according to the present disclosure.