4results about How to "Improve frequency response" patented technology

The invention discloses a cooperative control method for a floating type photovoltaic-hybrid energy storage system, and the method employs a flexible connection and semi-tensioning mooring design, and is suitable for a 0-degree head wave long-period working condition. Improving maximum power tracking control, and inhibiting power point oscillation based on a partition variable step size and a prediction power algorithm; hybrid energy storage power is distributed through a low-pass filter, a storage battery and a super capacitor cooperatively process high / low frequency fluctuation, and the service life is prolonged by combining charge partition management; a virtual synchronous generator VSG adaptive control strategy is provided, an improved particle swarm optimization algorithm is adopted to optimize a J / D initial value, and frequency fluctuation is dynamically suppressed; an optical storage grid-connected system is established for verification, and the VSG technology enables the power frequency fluctuation to be quickly stabilized, thereby guaranteeing the stable operation of the system.

The utility model discloses a guide mechanism of a vibration test bench. The guide mechanism comprises an upper guide mechanism and a lower guide mechanism. The upper guide mechanism comprises a plurality of tension spring guide assemblies and a plate spring guide assembly, each tension spring guide assembly comprises a tension spring body, each plate spring guide assembly comprises a plate spring body, and the lower guide mechanism comprises a guide column. The vibration test bench further comprises a bench body, an inner drive and a moving coil, at least part of the moving coil is located in the bench body and can move in the vertical direction, the moving coil is connected with an upper cover plate of the bench body through plate spring guide assemblies and tension spring guide assemblies which are evenly distributed in the circumferential direction of the moving coil, and the vertically-arranged guide columns are inserted in the inner drive. According to the utility model, the movement direction of the moving coil can be limited, so that the vibration test bench has good lateral ratio, uniformity and frequency response when in use, and the precision of the vibration bench during testing is improved.

This application relates to the technical field of electronic filtering, and in particular to a miniaturized ceramic dielectric filter capable of handling high power. The filter includes a ceramic cover plate, a cavity, an insulating kit, an inner conductor sheet, and a connector. The ceramic cover plate is silver-plated and sealed to the top of the cavity. Each side of the cavity has an interface penetrating the side wall. Two insulating kits are located inside the cavity, each corresponding to one of the interfaces. The inner conductor sheet is housed within the insulating kit. The connector passes through the interface, and its end connects to the inner conductor sheet. This application improves transmission efficiency, reduces losses, lowers heat dissipation, and extends product lifespan. The insulating dielectric completely encapsulates the inner conductor, effectively increasing the filter's power output. Compared to conventional ceramic dielectric filters ranging from a few watts to tens of watts, this filter can handle high-current, high-frequency signals, thus broadening its application scope.

The utility model relates to an urban geological safety tremor early warning system probe, which comprises a probe shell, a sensor assembly and a signal processing circuit, the sensor assembly and the signal processing circuit are arranged in the probe shell, the sensor assembly comprises a broadband MEMS sensor, and the signal processing circuit is integrated with a sigma-delta A / D digital quantity filter and a sigma-delta A / D modulator. The broadband MEMS sensor is electrically connected with the sigma-delta A / D modulator through an MEMS sensor electric connection pin, the sigma-delta A / D digital quantity filter is electrically connected with the sigma-delta A / D modulator, and the sigma-delta A / D digital quantity filter is electrically connected with the probe cable. The system has the capabilities of high-sensitivity vibration detection, environmental noise suppression, automatic inclination correction and remote monitoring, significantly reduces the false alarm rate of geological disasters, and is suitable for long-term deployment in cities and remote areas.