32results about How to "Achieve equalization" patented technology

A generating controller of this invention performs minimum power generation via reducing engine torque fluctuations caused by load of power generation. A crank rotating angle using engine speed (Ne) and an upper stopping point as standard are detected based on pitch singles input from a crank rotating angle sensor (12). Functions of the engine speed (Ne) corresponding to the route having minimal friction force in whole circulation is used for pre-storing charge periods with different lengths. A charge period determining unit (18) compares the crank rotating angle and the charge period and inputs a charge control signal into an AND gate (104) when the present crank rotating angle is judged as the predetermined charge period. A duty determined by a regulated voltage control block (102) is set in a duty ratio setting unit (103) and is input to a switch circuit (7) when the AND gate (104) is opened.

An equilibration and flexible temperature rising test device of thyristor valve consists of three-phase to single phase conversion transformer CTPSPCT for converting three phase power to be single phase power, output winding adjustable temperature rising transformer and adjustable load reactor for adjusting current at power supply outlet .It is featured as using three-phase iron core to form primary and secondary edge wire structure of TPSPCE with its primary side being three-phase V form wiring and secondary side being single output ,applying 0.5:1:0.5 as current ratio of TPSPCE three-phase inlet wire for realizing equilibration of inlet wire current .

The invention discloses a map notation model and a notation method thereof, including: finally determining the flow direction, position and area of ​​the notation by controlling the map content density. Describe the optimal position of the annotation. Transform the characteristics and state of water flowing between ridges and valleys into the characteristics and state of map annotations, so that the position and density of map annotations and elements on the map can be transformed from visual perception to digital calculation in the model , to evaluate the distribution of map annotation and features. The map annotation water flow model describes the distribution and complexity of map annotations from a quantitative perspective, and accurately expresses the distribution and quantitative relationship between map annotations and elements. The invention has the advantages of: overcoming the drawbacks of the existing technology based on single-element annotation, effectively solving the problem of overlaying multi-layer annotation; realizing the balanced layout of the entire map and the equalization of map content; improving the Cartographic efficiency; enrich the theoretical and technical methods of quantitative map making.

A new broadband dual-polarization array antenna unit belongs to the field of antenna technology. The top of the antenna unit is grounded through a metallized through hole around the unit boundary, which effectively reduces the fluctuation of the active standing wave ratio of the unit during the array scanning process, which is beneficial to Realize impedance matching under wide scanning angle, improve the beam scanning characteristics of the array antenna unit; use the radiation patch combined with the reflective patch to increase the bandwidth of the antenna unit, and realize the equalization of the E-plane and H-plane radiation patterns; A grounding hole is added in the middle of the radiation patch of the antenna unit, so that the center of the radiation patch becomes a zero potential point, combined with the method of switching the position of the feed point with a strip line, the two port positions required by the dual-polarization antenna unit are realized The flexible selection of is beneficial to the integration of the antenna unit and the TR component.

A power apparatus applied in an SST structure includes a first AC-to-DC conversion unit, a first DC bus, an isolated transformer, a DC-to-AC conversion unit, a second AC-to-DC conversion unit, and a second DC bus. The first AC-to-DC conversion unit has a first three-level bridge arm and a second three-level bridge arm. The first DC bus provides a first DC voltage. The isolated transformer has a primary side and a secondary side. The DC-to-AC conversion unit has a third three-level bridge arm and a fourth three-level bridge arm. The second AC-to-DC conversion unit has a fifth three-level bridge arm and a sixth three-level bridge arm. The second DC bus provides a second DC voltage.