2results about How to "High stability" patented technology

The utility model discloses a stable high-elasticity FPC connector, comprising a housing, the inner side surface of the housing is provided with a plugging groove, the interior of the plugging groove is plugged with a signal contact, the outer surface of the middle section of the housing is provided with an anti-deformation opening, and the outer surface of the housing is provided with a protection structure. And the signal contact is protected through the protection structure and is prevented from being separated from the insertion connection with the insertion connection groove. According to the stable high-elasticity FPC connector, the anti-deformation opening is formed in the opening of the shell, so that the horizontal distance between the position where the signal contact is inserted into the shell and the anti-deformation opening is reduced, and even if the shell deforms, the deformation of the shell can be reduced under the support of the signal contact; the height difference between the signal contact and the inner wall of the housing is kept consistent, and the protection housing protects and limits the signal contact, so that the signal contact is not separated from the housing or does not shake, and the overall stability of the connector during use is ensured.

The application provides a power grid frequency modulation method and device based on MMC bridge arm capacitor multiplexing, and relates to the technical field of power grid frequency control. In view of the function conflict problem between the participation of the MMC bridge arm capacitor in power grid frequency control and voltage stabilization and filtering, the MMC bridge arm sub-module is transformed in a full-bridge type multiplexing mode, the MMC power throughput capacity is enhanced in a parallel super capacitor mode, the regulation and control of the bridge arm capacitor on voltage fluctuation is enhanced, and the support capacity on the power grid frequency is simultaneously improved; the principle and method of the participation of the MMC in the power grid frequency support are analyzed by simulating the frequency characteristics of a synchronous machine, the power grid frequency modulation model of the participation of the MMC in the MTDC system is constructed, the power grid frequency modulation method of the participation of the MMC in the MTDC system is optimized, the frequency deviation generated when the active power of the power grid and the load demand are unbalanced is taken as the input of the frequency modulation model, and corresponding frequency modulation strategies are adopted based on the frequency modulation demand of the MTDC system. The application can realize the reasonable distribution of the power required for frequency modulation, and improve the comprehensive stability characteristics of the new power system.