32results about How to "Reduce load imbalance" patented technology

Computing process with a computational expression is executed using seed information including at least one of destination information and source information associated with a received packet. It is preferable to select a physical port for transmission of the received packet based on the result of the computation. It is also preferable to select a port group for transmission of the received packet based on the result of the computation. Here, the computational expression is capable of being modified. Meanwhile, the physical port for transmission of the received packet is selected from a plurality of candidate ports among the plurality of physical ports. The port group for transmission of the received packet is selected from among a plurality of port groups including a mutually different candidate port.

Systems and methods for implementing per-session load balancing of packets that increase traffic sharing and reduce systematic unequal distribution of traffic are provided by virtue of one embodiment of the present invention. A method for operating a selected router is provided that uses a load balancing algorithm that is configured to de-correlate distribution of sessions among the active paths at the selected router relative to distributions of sessions of other algorithms at other routers of said network. Packets arriving at the selected router are assigned to an output path according to the load balancing algorithm. A method of routing a packet received at a router having an associated identifier is provided. The source address and a destination address of the packet are obtained. An output path is selected according to a load balancing algorithm that uses the associated identifier, the source address, and the destination address as inputs, and the packet is routed to the output interface associated with the selected output path. A look-up table that is configured using the identifier can be used in selecting the output path. A router storing an identifier assigned to the router is provided; the identifier is used in determining per-session routing of incoming packets.

The invention discloses a railway photovoltaic energy storing system and control method for regenerative braking energy recovery. Real-time online detection and processing are carried out on all kindsof running data of a photovoltaic side, traction side and energy storing side, a comprehensive judgement is carried out on running conditions based on a calculation result, control schemes under multiple scenes are selected through a judging result, an energy storing unit is taken as an energy transferring station, the coordinated control of a back-to-back converter, photovoltaic power generationunit and energy storing unit is achieved, and the electric energy elective exchange under the multiple scenes is completed. The system and method are conductive for photovoltaic power energy nearby consumption and railway system green development, can effectively recover the regenerative braking energy of haulage motors and the photovoltaic power energy which cannot be consumed, increases systemeconomic benefits, stabilizes photovoltaic side output and power energy fluctuation of the traction side under the regenerative braking conditions, and compensates for negative sequence functions of atraction power supply system.

The invention discloses an AP access load balancing method. The method comprises the following steps: S1, predicting an AC user network flow condition at the next moment according to the AP number, the user number and the AC user network flow at the current moment; S2, judging the load conditions of ACs according to the AC user network flow condition at the next moment, and setting priorities for the ACs according to the load conditions; and S3, selecting the AC with high priority to access by an AP according to the priorities of the ACs. Through the adoption of the method disclosed by the invention, the influences of the AP number, the user number, and the AC user network flow and other factors at the current moment are sufficiently considered, the load condition of the AC are globally mastered, and the imbalance of the AC load is reduced.

The invention discloses an implementing method for load balancing, applied to a storage system with a plurality of storage control appliances. In the method, the storage control appliances acquire the load connection number of themselves and load connection number of the remote side; the remote side is any one of the other storage controllers in the storage system; the storage control appliances judge whether the difference of the load connection number of themselves and load connection number of the remote side is greater than or equal to the preset threshold, if so, migrating part of the self load connection into other storage control appliances in the storage system, so as to make the difference of the load connection number of themselves and load connection number of the remote side after migrating is less than the preset threshold. The present invention also discloses a storage control appliance and a storage system. Use of the invention can achieve dynamic load balancing.

The present invention relates to switching power supply and is circuit for reducing unbalance of multi-output power source loads. The technological scheme includes the positive pole of input voltage,L1, transformer primary side, MOSFET and the negative pole of input voltage constitute one serial loop; C1 is connected across the joint of L1 and transformer primary side and input voltage negative pole; MOSFET has its drain connected serially with the transformer and source connected to input voltage negative pole and C1 is connected to the input voltage negative pole; two transformer secondarywindings separates the output circuit into two braches, I and II; and the control circuit has input from the output of branch I and produces drive puls as the drive signal of MOSFET in transformer primary side and connected to the grid of MOSFET.

The invention discloses a multiple parallel method based on a characteristic line method. After radial MOC inhomogeneous calculation is carried out on each layer of a core of a reactor, the layering homogenization cross section of a lattice cell is obtained in a homogenization mode, three-dimensional transportation calculation is carried out, and then an axial leakage item for radial MOC inhomogeneous calculation is updated until iterative convergence is achieved. By means of the mode of analyzing the effects of the parallel efficiency of space, the parallel efficiency of angles and the parallel efficiency of characteristic lines on the total parallel efficiency at the same time, a multiple parallel optimization scheme is determined.

The invention relates to heat engineering, power engineering and the field of electric heating of liquids, water for instance; it can be used in circulation water heating systems and hot water supply, and as a universal device for diverse electric heaters. An object of the invention are to enhance the ease of fabrication, fabricability, and operability for block electrodes and electrode heating boilers on the whole, to increase the reliability of device both in static and dynamic modes ones. The invention meets an object of extended performance capabilities, versatility and flexibility of the device, potential diversification and enhancement of adaptability in solving particular problems. Moreover, the invention allows improvement of convection in water heating boilers and reduction of uniformity of sludge and rust deposition on electrodes thus increasing the heater effective performance time. The invention object comprises an improvement of protection against breakdowns between the electrodes as well, phase current load imbalance reduction, electrode protection against non-uniform deformation during operation in dynamic conditions. It is also an object of the invention to extend i the range of constructional capacity control without design and dimensional changes. FIG. 2 provides a schematic of electrodes (1) arrangement on the basis (3) located on the inner case (2) side with electrodes (1) slightly deviating from the longitudinal symmetric axis of the case (2) and irregularly spaced on the basis, electrode longitudinal axes deviating from each other at small angles. (4)—outer electrode terminals (1).

The invention discloses a magnetically-controlled static var compensator, which mainly solves the defects that in the prior art, the existing reactive compensation is stepped and low in accuracy, and cannot provide inductive reactive power or capacitive reactive power synchronously; the switching operation is frequent; the higher requirements of the electrical power system and users cannot be met. The magnetically-controlled static var compensator comprises a digital signal processor, a power supply, a capacitor bank or a filter bank, a keyboard, a liquid crystal displayer, a programmable logic controller, a reactive compensation unit, CSR (Controllable Shunt Reactors), and an AD (Analog-to-Digital) sampling circuit, wherein the output ends of the power supply, the capacitor bank or the filter bank and the keyboard are all connected with the digital signal processor; the input ends of the liquid crystal displayer, the programmable logic controller and the reactive compensator are all connected with the digital signal processor; the controllable shunt reactors are connected with the reactive compensation unit and the programmable logic controller; the input end of the AD sampling circuit is connected with the controllable shunt reactors, while the output end is connected with the digital signal processor. By virtue of the scheme, the magnetically-controlled static var compensator can reach the target of high cost performance and meet the actual demand, and is of high practical value and promotion value.

The invention discloses a user-base station bidirectional matching access method in a lift-off wireless network. The method comprises the following steps: initializing a non-accessed user set; calculating the satisfaction degree of any user to each lift-off base station; selecting a lift-off base station with the highest satisfaction degree; enabling the lift-off base station to determine whether to allow user access according to the revenue function; and if so, respectively updating the access user set and the non-access user set, and outputting a user access optimization result when the non-access user set is empty. Through two-way selection of the user and the base station, the problems of multi-user interference and load balancing faced by a traditional user access method are solved, and the user service quality is improved.

The invention discloses a flexible neutral section passing device for an electrified railway and a control method. Relates to the technical field of electrified railway traction power supply. Alternating-current ports are bridged among an alpha-phase power supply arm circuit, a beta-phase power supply arm circuit and an N neutral line circuit at the electric split-phase position of a traction power supply system, direct-current ports are arranged in the device and can be selectively connected with a direct-current source according to needs, and bidirectional circulation and ordered transfer of energy can be carried out among the ports and interconnection lines of the ports. And multi-end and multi-direction power fusion is realized. According to the control method, a power supply section of an electric split-phase position is divided into a plurality of state intervals, and different train operation positions correspond to different device control schemes.