7results about How to "Reduce power generation efficiency" patented technology

The application relates to an implementation method and system of an electric brake, wherein the method comprises the following steps: when a brake pedal is triggered, requesting a brake power generation torque to be transmitted to a motor controller through a vehicle domain controller; based on the power generation torque, traversing a target query table to obtain a target direct-axis current and a target cross-axis current of a permanent magnet synchronous motor; based on the motor controller, converting the target direct-axis current and the target cross-axis current into energy, and distributing the converted energy to the motor and a battery system; when the voltage in the battery exceeds a preset value, based on the target query table, obtaining new target direct-axis current and new target cross-axis current of the permanent magnet synchronous motor, and distributing the new target direct-axis current and the new target cross-axis current to reduce the voltage in the battery system. The application timely converts brake force into heat to be consumed, reduces energy recovery, and reduces the wear of a mechanical brake.

The invention discloses a floating type offshore photovoltaic platform. Comprising a bottom frame; the first floating cylinders are mounted on the bottom frame; the top mounting frame is arranged above the bottom frame, is provided with a flexible cable and is used for mounting a photovoltaic panel; the upper ends of the stand columns are connected with the corners of the top mounting frame respectively, and the lower ends of the stand columns are connected with the corners of the bottom frame respectively; the upper ends of the reinforcing rods are connected with non-corners of the top mounting frame, and the lower ends of the reinforcing rods are connected with non-corners of the bottom frame. The vertical columns are arranged at the corners of the top mounting frame and the bottom frame, meanwhile, the reinforcing rods are additionally arranged to connect the non-corner areas of the top mounting frame and the bottom frame, and a three-dimensional supporting system of the corner vertical columns and the non-corner reinforcing rods is formed. Stress caused by sea wave impact, water flow disturbance and wind load can be dispersed, bending deformation and vibration amplitude of the top mounting frame are reduced, fatigue damage of the frame structure is avoided, and the overall structural strength of the platform is improved.

The invention belongs to the technical field of trap lamps, and particularly relates to a trap lamp convenient to collect insects and a using method, the trap lamp comprises a trap lamp body, a supporting rod, an adjusting rod and a photovoltaic panel, the trap lamp body is installed on one side wall of the adjusting rod, the photovoltaic panel is installed at the top end of the adjusting rod, the adjusting rod is connected to the top end of the supporting rod, and the supporting rod is connected to the top end of the adjusting rod. The supporting rod is vertically installed on the ground, an arc-shaped light reflecting plate is arranged in the trap lamp body and located at the top end in the trap lamp body, the top end of the trap lamp body is connected with a screw, and the screw penetrates through the trap lamp body to be fixedly connected with the arc-shaped light reflecting plate. According to the insect trapping lamp, the arc-shaped light reflecting plate is stably installed in the insect trapping lamp body through cooperation between the arc-shaped light reflecting plate and the screws, then the illuminance is increased and the illumination distance is increased when the insect trapping lamp body works, and therefore the use cost is reduced, and the insect collecting efficiency is improved.

The invention provides a power distribution-traffic network coupling optimization configuration method and system considering extreme weather, and the method comprises the steps: firstly constructing a power distribution-traffic network coupling node optimization configuration model which considers the influence of a multi-element mixed traffic flow in a traffic network and traffic waves caused by intersection traffic lights on the road traffic density distribution; the influence of different types of extreme weather on the electrified road is reduced; and solving the optimal configuration model of the power distribution-traffic network coupling nodes to obtain an optimal configuration scheme of electrified roads, energy storage and special transformers of the power distribution-traffic network coupling nodes. According to the method, a mode of combining an electric vehicle dynamic wireless charging system and a pavement paving photovoltaic system is adopted, a road with relatively large overall traffic flow is selected as a candidate coupling node to configure an electrified road, land occupation and power grid dependence of an independent charging station are greatly reduced, and on the premise of ensuring that the charging requirement is met, the charging efficiency is greatly improved. And the dynamic wireless charging service profit of the system is maximized.

The application discloses a kind of area grazing device of demarcation wheel area, including mobile part, control module, data acquisition device, sound simulation module and battery module, wherein, control module data acquisition device, sound simulation module and battery module are all set on the mobile part, the mobile part is moved along the preset route by control module control, data acquisition device the control module remains connection, to collect the real-time data of field of pasture, sound simulation module is connected with control module, and the sound played through the sound simulation module can make the sensitive response of herd, to drive herd, battery module provides power for the data acquisition device, control module and sound simulation module described above.The present application monitors herd in real time through image acquisition probe, at the same time, NDVI probe monitors the pasture height of pasture demarcation, so as to drive herd to the next pasture round area when the pasture height reaches the minimum preset height, and then realize unmanned grazing, reduce workload, reduce grazing cost.

This invention provides a method, apparatus, control device, and diagnostic system for diagnosing photovoltaic (PV) power generation systems. The method, based on a differential power processing device in the PV power generation system, includes: acquiring a terminal voltage signal and a current signal output in response to a preset excitation voltage signal from the PV panel under test based on a fault diagnosis trigger signal; matching the terminal voltage signal and current signal with a preset diode model of a solar cell to determine the values ​​of various modeled circuit parameters corresponding to the terminal voltage and current signals in the diode model of the preset solar cell; and performing fault diagnosis on the PV panel under test based on the values ​​of these modeled circuit parameters. This invention can avoid the reduction in PV power generation efficiency caused by faults that are difficult to detect in a localized manner over a long period; and it does not require additional device costs.

The invention relates to a multifunctional ecological enclosure for lake submerged vegetation restoration, and relates to the technical field of vegetation ecological restoration, the enclosure comprises a first hollow rod and a second hollow rod which are vertically inserted in a peripheral water body of an enclosure object, and an enclosure net connected to the side, away from the enclosure object, of the first hollow rod and the second hollow rod, and the enclosure net is circumferentially arranged around the enclosure object; the light supplementing mechanism is connected between the first hollow rod and the second hollow rod and close to the bottom face side of the water body, and the light emitting face of the light supplementing mechanism horizontally emits light towards submerged vegetation in the peripheral water area of the enclosure object. The scouring turbulent flow mechanism is arranged between the first hollow rod and the light supplementing mechanism, water is pumped from the upper layer of the periphery and sprayed to the light emitting face from bottom to top, and turbulent flow is formed between the light emitting face and the submerged vegetation. Through the structure, favorable illumination can be provided for submerged vegetation, algae attachment and impurity deposition are inhibited, meanwhile, the thickness of a leaf boundary layer is improved, water body substance exchange is promoted, and the photosynthesis efficiency and the growth environment stability are improved.