6 results about "Control banding" patented technology

The invention discloses a drilling track real-time monitoring and intelligent deviation correction control method, device and equipment, and aims to construct a multi-sensor fusion drill attitude measurement technology to realize high-precision track deviation detection and error compensation; performing potential energy accumulation on the negative deviation component to generate a deviation energy pool by adopting a positive and negative deviation decomposition technology of a track deviation vector; establishing a chaos control band framework, analyzing and identifying a stable boundary and an unstable boundary through energy fluctuation characteristics, and extracting an optimal response interval to guide deviation correction control; determining an active deviation rectification vector, and controlling a hydraulic cylinder to generate deflection torque through a composite deviation rectification instruction; an oscillation feature extraction technology is introduced, a stability index is generated based on system oscillation parameters and position mapping of a chaos control band, a chaos edge control field is constructed, and precise regulation and control of complex nonlinear drilling dynamics are achieved; the energy conversion efficiency is obtained and the chaos edge control field is combined to generate a real-time deviation correction control quantity, so that a closed-loop intelligent deviation correction control loop is formed.

A sealing assembly, a well system, and a method are disclosed. The sealing assembly, in one aspect, includes a mandrel and a sealing element positioned about the mandrel, the sealing element having a radial inner and outer surface. The sealing assembly, according to this aspect, further includes a deployable control band positioned radially outside the radial inside surface, a first collar sleeve coupled proximate a first end of the sealing element, and a second collar sleeve coupled proximate a second end of the sealing element, wherein the first and second collar sleeves are configured to axially translate relative to one another along to move the sealing element between a radially retracted state a radially expanded state, and further wherein the deployable control band is configured to deploy from an undeployed state to a deployed state as the sealing element moves from the radially retracted state to the radially expanded state.

A method and apparatus for controlling compressors in a cascade vapor compression system. The process may include controlling the operation of a first compressor based on a constant band control, and controlling the operation of a second compressor based on a proportional band control. Controlling the first compressor based on the constant band control may include operating the compressor at a constant setting if first measurements are within a range associated with a first setpoint. It may also include proportionally adjusting the operation of the first compressor if the first measurements are outside the range. Further, controlling the second compressor based on the proportional band control may include operating the compressor based on one of a plurality of proportional bands, each proportional band having a different proportional factor. Controlling the second compressor operation may further include switching between these proportional bands based on a second measured parameter.

The invention provides a pulse-controlled band sawing machine which comprises a base, a cross beam is arranged on the base, a band saw wheel and a band saw motor are arranged on the cross beam, a band saw blade is installed on the band saw wheel, a guide arm is arranged on the cross beam, a discharging table is arranged below the cross beam, and the pulse-controlled band sawing machine further comprises a pulse control device. The pulse control device is connected with the guide arm; the pulse control device comprises a fixing frame connected with the guide arm and a roller in contact connection with the band saw blade, the roller is connected with a vibration rod, the outer side of the vibration rod is sleeved with a first spring, the top end of the vibration rod is provided with a vibration rod connecting end, the vibration rod connecting end is connected with a holder, and the holder is connected with a second spring. The holder is fixed to the upper end face of the fixing frame, the holder is further connected with an iron core, a coil is arranged on the iron core, and a threaded sleeve is arranged on the upper end face of the iron core. The band saw blade chip breaking device has the advantages that vibration chip breaking of a band saw blade can be achieved, the vibration frequency is adjustable, the structure is simple, and operation is easy.

The invention discloses a control method and system for an L-band amplitude limiter, and relates to the technical field of control methods, a plurality of amplitude limiting characteristics are determined based on the identification of multi-modal data, and the amplitude limiting mode of the L-band amplitude limiter is determined according to the plurality of amplitude limiting characteristics and the model and use scene of the L-band amplitude limiter. And the accuracy of the amplitude limiting mode of the L-band amplitude limiter is improved. Therefore, the amplitude limiting range of the L-band amplitude limiter is determined based on the current working data of each electronic component and the current working data of the L-band amplitude limiter, and a main amplitude limiting path and a secondary amplitude limiting path are determined according to the amplitude limiting range, the amplitude limiting mode and the corresponding working path of the L-band amplitude limiter; the working efficiency of the L-band amplitude limiter is determined based on the current working data of the L-band amplitude limiter, and the amplitude limiting control level of the L-band amplitude limiter is determined according to the working efficiency of the L-band amplitude limiter, the main amplitude limiting path and the secondary amplitude limiting path, so that the accuracy of the amplitude limiting control level of the L-band amplitude limiter is improved.

The application discloses a drilling trajectory real-time monitoring and intelligent deviation correction control method, device and equipment, constructs a multi-sensor fusion drill bit posture measurement technology, realizes high-precision trajectory deviation detection and error compensation; a positive and negative deviation decomposition technology of a trajectory deviation vector is adopted, a negative deviation component is accumulated to generate a deviation energy pool; a chaotic control band framework is established, stable boundaries and unstable boundaries are identified through energy fluctuation characteristic analysis, an optimal response interval is extracted to guide deviation correction control; an active deviation correction vector is determined, a deflection torque is generated by a composite deviation correction instruction control hydraulic cylinder; an oscillation characteristic extraction technology is introduced, a stability index is generated based on system oscillation parameters and position mapping of the chaotic control band, a chaotic edge control field is constructed, and accurate regulation and control of complex nonlinear drilling dynamics is realized; through acquisition of energy conversion efficiency and combination of the chaotic edge control field, a real-time deviation correction control quantity is generated, and a closed-loop intelligent deviation correction control loop is formed.