84results about How to "Reduce load fluctuations" patented technology

This invention relates to a system load control method of mobile exchange center. The procedures are that a overloading control process that independent run in system is built to initialize data and enter working state when the system is started or transferring of reserve machine to main machine. A super timer is set to send timer message to overloading control process in supporting system. CPU occupancy is detected and the system overloading or overloading release is determined unitedly to make sure whether to use overloading control and judge whether to accept or limit certain business. Businesses that allow accessing is set in schedule time interval to limit the exceeding business when the overloading control is needed. System load control complexity is reduced by this method and it is convenient to unified management and maintenance. Load fluctuation in load control is reduced and load control failure is avoided by this invention.

A maintenance-free moisture absorber comprises a connecting flange, an upper connecting base, a condensation cover and an air inlet and outlet module, moisture absorbing silica gel, a heating device and a control box, wherein the connecting flange, the upper connecting base, the condensation cover and the air inlet and outlet module are sequentially connected; the moisture absorbing silica gel and the heating device are arranged in the condensation cover; and the control box is positioned outside the condensation cover. A breathing tube communicated with the connecting end of the air inlet and outlet module through the moisture absorbing silica gel is arranged in the moisture absorbing silica gel, a condensation cavity is positioned in the upper connecting base, one end of the condensation cavity defined by an air duct is communicated with the top end of the breathing tube, and the other end of the condensation cavity is communicated with a flange opening of the connecting flange. A semiconductor refrigeration piece and a radiator are symmetrically arranged on the outer portion of the air duct, and the semiconductor refrigeration piece is connected to the refrigeration control end of the control box. A method for controlling the maintenance-free moisture absorber comprises collecting color information of the moisture absorbing silica gel in real time; comparing an RGB value at the set comparison moment and position on the day and a set RGB value; if the RGB value at the set comparison moment and position on the day is larger than the set RGB value, setting a night dehydration control mark, first starting to perform refrigeration and then performing heating; after the reduction process of the moisture absorbing silica gel is ended, first stopping heating and then stopping refrigeration; or else resetting.

The present invention relates to an oil pumping device with a pumping rod, including a motor (15), a reducer (17) connected with the motor, an underground oil pumping mechanism and an electric control cabinet (11). The present invention is characterized in that a roller lifting mechanism is added and connected between the reducer (17) and the underground oil pumping mechanism; the roller lifting mechanism includes a double-roller winch (10), an oil-pumping end steel rope (7), a counterweight end steel rope (7-1), a pulley bracket (9), a well mouth pulley (8), a bend pulley (12), a counterweight movable pulley (13), a counterweight (14) and a counterweight well (24). The oil pumping device with a pumping rod provided by the present invention, particularly suitable for a deep oil well, a dense oil well and a high wax content oil well, has the advantages of simple and reasonable structure, long stroke distance, convenient regulation, reliable operation and long service life, thus greatly decreasing the production cost and the material consumption and increasing the yield of crude oil when reducing the energy consumption.

The invention discloses a public building participated grid optimization operation method. The grid optimization operation method comprises the steps of S1, building a public building adjustable resource optimization operation control information base, wherein the information base contains all adjustable resources such as photovoltaic cells, wind power generation, EV and adjustable loads in public buildings; S2, establishing an adjustable resource optimization operation mode, and sending the adjustable resource optimization operation mode to the adjustable resources in the buildings, wherein the ith adjustable resource receives the notification and judges whether the optimization operation mode is allowed to be accepted or not; and S3, if not, updating the information base according to constraint conditions, if so, judging whether a multi-objective optimization objective is met or not, if so, performing an optimization operation according to the mode, and if not, continuing to update the information base according to the constraint conditions. Fluctuations of an output building overall load curve are enabled to be greatly reduced, an optimized load area is stable, and the difference between peak and valley is also obviously reduced.

The invention relates to an automatic unloading device for recrement, and belongs to material conveying equipment. The automatic unloading device only selects an automatic unloading segment of a track dumpbottom unloading mechanism, and completes unloading and resetting of automatic unloading components of the device in a reciprocating work mode of a transfer truck to realize recycling of the dumpbottom transfer truck; a back stroke sliding start lift angle (alpha) of the bearing surface of a carrier roller on the unloading segment makes the transfer truck automatically complete back stroke and simplifies power deployment; parallel unloading segments can improve production efficiency and reduce fluctuation of unloaded loads; and an accommodating cavity (7) connected with flow phase of unloaded materials, and a balance feeding machine (5) guide the transfer and circulation of the unloaded materials, and balance the output of the unloading device. The device has simplified structure and skillful and reasonable conception, is convenient to realize integrated automation of transfer, obviously simplifies operation and management, is equipped with prepositive conveying on an inlet of the device to provide bidirectional connection of bearing the unloading and delivering the empty transfer truck and facilitate obvious reduction of the whole transfer cost and great decrease of occupied area, and is verified by prototype tests.

The invention discloses a multi-hole type wind turbine energizer. The multi-hole type wind turbine energizer comprises a multi-hole guide plate with uniformly distributed holes, a pedestal, and a damping limiting device which is arranged between the multi-hole guide plate and the pedestal for buffering or limiting left-right rotation of the multi-hole guide plate, wherein the centre of the multi-hole guide plate is equipped with a main shaft; the multi-hole guide plate is connected with the pedestal through the main shaft and a rolling bearing; and the damping limiting device comprises a damping limiting device body, a plurality of baffle plates and a spring which is arranged between every two adjacent baffle plates. The multi-hole type wind turbine energizer can buffer and limit left-right rotation of the multi-hole guide plate, and the baffle plates are uniformly distributed on the main shaft and the damping limiting device body in a peripheral direction. The multi-hole type wind turbine energizer can efficiently utilize low-speed air energy below a wind turbine, can effectively improve wind turbine output power, also can reduce wind turbine load fluctuation, and can reduce influences of the environment to be smallest.

The invention discloses a multi-hole type wind turbine energizer. The multi-hole type wind turbine energizer comprises a multi-hole guide plate with uniformly distributed holes, a pedestal, and a damping limiting device which is arranged between the multi-hole guide plate and the pedestal for buffering or limiting left-right rotation of the multi-hole guide plate, wherein the centre of the multi-hole guide plate is equipped with a main shaft; the multi-hole guide plate is connected with the pedestal through the main shaft and a rolling bearing; and the damping limiting device comprises a damping limiting device body, a plurality of baffle plates and a spring which is arranged between every two adjacent baffle plates. The multi-hole type wind turbine energizer can buffer and limit left-right rotation of the multi-hole guide plate, and the baffle plates are uniformly distributed on the main shaft and the damping limiting device body in a peripheral direction. The multi-hole type wind turbine energizer can efficiently utilize low-speed air energy below a wind turbine, can effectively improve wind turbine output power, also can reduce wind turbine load fluctuation, and can reduce influences of the environment to be smallest.

The invention relates to an electric car charging control method and a charging pile. Two options, namely, accepting the demand response management and rejecting the demand response management, are provided for users. The method includes: determining whether the user accepts the demand response management or not through the charging pile according to user's operation, if so, then determining the charging power of the charging pile through an electric car demand response management system; if not, then determining the charging power of the charging pile through the car in charging; and further,charging the car needing to be charged according to the charging power of the charging pile. On the basis of full use of the existing distribution network resources, the method realizes orderly guideand dynamic adjustment control on output real-time power of the charging pile, guides the charging behavior of the electric car to transit into an ordered charging mode from a single-way out-of-orderrandomly charging mode, realizes peak shaving of the power grid, realizes charging on peak shifting, reduces load fluctuation of the power grid, reduces energy consumption of the power grid, improvesreliability of the distribution network and increases economic benefit thereof.

The invention relates to an automatic power generation control follow-up load disturbance test method for a thermal generator set, which is mainly and technically characterized by comprising the following steps of: setting rated power, an initial load value and a target load value of the thermal generator set, and entering a follow-up load disturbance mode; recording different moments of enteringload change and actual loads at the moment according to an automatic power generation control follow-up disturbance test load change curve; and checking whether the automatic power generation controlspeed regulation function, the control response time, the dynamic deviation and the static deviation are qualified or not under the follow-up test of the thermal generator set. The design is reasonable, the test time is shortened, the risk of unit load fluctuation and equipment outage is reduced, the working efficiency is improved, and scientific guidance can be provided for an automatic power generation control test.