61 results about "Single loop" patented technology

The invention discloses a single-loop droop control method and system for a wind generating set, and the method comprises the following steps: constructing a doubly-fed fan-power converter-power grid three-module coupling model, and completing the dynamic adaptation of the characteristics of a doubly-fed fan of a single-loop droop control architecture without inner-loop current control; based on the input signal-model collaborative integration body and the adaptive architecture, MIMO-GBC is adopted to analyze a phase margin and a resonance peak value of an open-loop transfer function matrix eigenvalue of a dynamic small signal model, and double risks are identified in a full slip rate interval; aiming at the resonance risk, a current induction type virtual impedance strategy is adopted; aiming at insufficient phase margin, adopting a transient phase calibration strategy; and according to the real-time slip ratio of the DFIG and the stator power change, inter-partition linkage optimization is carried out on the virtual resistance and the phase calibration angle so as to minimize a dual-power step response fluctuation square mean value, a parameter setting period and a rotor side converter control period are synchronously matched, and all-working-condition stable control is realized.

The invention relates to the technical field of lightning protection of high-voltage transmission lines, in particular to a method for improving shielding failure lightning protection performance of a line in a single-loop alternating-current to direct-current scene, which comprises the following steps of: configuring positive and negative leads and a return line of a direct-current line by utilizing three lead channels of an original alternating-current line tower, the configuration of the positive and negative wires and the return wire of the DC line comprises the following steps: determining three candidate arrangement modes of the wires: the return wire is located in a tower window, the positive wire is located in the tower window, and the negative wire is located in the tower window; based on the statistical characteristic that 90% of thunder and lightning is negative polarity, shielding failure flashover rates of the direct-current line in the three candidate arrangement modes are calculated by combining shielding failure differences of positive and negative thunder and lightning on the direct-current line; according to the shielding failure flashover rate, the arrangement mode with the lowest shielding failure flashover frequency is screened to serve as the shielding failure lightning prevention optimal wire arrangement scheme in the single-loop alternating-to-direct scene, and the excellent shielding failure lightning prevention effect can be achieved under the condition that an existing iron tower structure does not need to be changed.

The application discloses a kind of multi-channel loop heat pipe and radiator, comprising: heat pipe body and heat pipe cover, heat pipe cover is set in the open side of heat pipe body cavity;Heat pipe body has evaporation cavity and multiple condensation cavities, multiple condensation cavities are evenly distributed in the outer circumferential side of evaporation cavity, each condensation cavity is communicated with evaporation cavity by corresponding steam passage and liquid passage, to form multiple circulation heat dissipation structure, each condensation cavity and each liquid passage are provided with liquid storage cavity between.The application adopts new type loop heat pipe of multiple condensation cavities sharing an evaporation cavity, not only compact overall structure, small space occupation, and, compared with single loop, heat dissipation effect can be increased by 3-4 times, greatly improve heat dissipation capacity;And can adapt to different orientation in gravitational field and acceleration field, can be applied in high-power computing power module heat dissipation and aerospace field heat dissipation.

The invention provides a hot stamping forming device and method for a large aluminum alloy thin-wall part. The device comprises a hot stamping die, a single-loop cooling unit and a control system. An integrally-machined variable cross-section cooling flow channel is embedded in the hot stamping die, and the flow channel is composed of a high-speed flow channel area, a low-speed flow channel area and a transition flow channel area which are different in hydraulic diameter. The single-loop cooling unit provides a cooling medium for the flow channel through a single variable-frequency hydraulic pump; and the control system is used for roughly adjusting the overall cooling strength by adjusting the pump power. Passive distribution of the flow velocity of a cooling medium is achieved through geometric differences of flow channel sections, a complex multi-loop active control system can be replaced with a single-loop system only, soft and hard gradient performance distribution is achieved on a formed part, and the system has the advantages of being simple in structure, high in reliability and low in energy consumption and maintenance cost.

The present invention relates to a method for predicting the steady-state temperature of a three-phase multi-circuit tunnel cable core, and an electronic device. The method comprises: establishing a single-phase single-circuit tunnel cable steady-state thermal circuit model, and using the constructed single-phase single-circuit tunnel cable steady-state thermal circuit model to obtain the steady-state temperature of a core of a single-phase single-circuit cable; using a correction method to obtain the steady-state temperature of a cable core arranged in a three-phase single circuit; for a single-phase four-circuit arrangement situation, incorporating the influence of a mutual thermal effect between circuit cables on the temperature of the cable core into equivalent mutual-heating thermal resistance, and introducing the equivalent mutual-heating thermal resistance into the single-phase single-circuit tunnel cable steady-state thermal circuit model, so as to form an improved thermal circuit model to predict the steady-state temperature of a cable core of a single-phase multi-circuit cable; and using a three-phase multi-circuit cable as the combination of single-phase single-circuit, three-phase single-circuit and single-phase multi-circuit, and predicting the temperature of a cable core of the three-phase multi-circuit cable. Compared with the prior art, the present invention has advantages such as quickly and accurately predicting the steady-state temperature of a three-phase multi-circuit tunnel cable core.

The invention relates to the technical field of petrochemical engineering, in particular to an efficient material conversion device and method for multi-head driving heat removal. The technical problems are as follows: the problem of uneven temperature distribution caused by volume increase of a reactor in the prior art is solved; according to the technical scheme, the efficient material conversion device and method achieving multi-head driving heat transfer comprise a material conversion unit, a multi-head driving heat transfer unit and a heat recovery unit, the multi-head driving heat transfer unit comprises at least two sets of independent circulation loops, and each set of loop corresponds to a heat transfer subarea of the material conversion unit; the reactor is divided into a plurality of independent temperature control areas through the multi-head driving heat transfer unit, and the accurate matching of the heat transfer intensity of each area is realized in combination with the dynamic regulation and control of the temperature sensor array and the central controller, so that the technical defect that the traditional single-loop heat transfer system cannot adapt to the dynamic change of the heat load is overcome, and the heat transfer efficiency is improved. The temperature distribution uniformity of the material conversion equipment is improved, the side reaction occurrence rate is reduced, and continuous and stable operation of the device is guaranteed.

This utility model discloses a split-type control circuit for aviation obstruction lights, belonging to the field of control circuit technology. The control loop can select parameters according to the power of the light fixture. The control circuit includes an AC power supply, a light fixture power switch QF1 and a control power switch QF2, a cyclic time relay KA, and solid-state contactors KM1 and KM2. Through the split-type control design, the flexibility and applicability of aviation obstruction lights are significantly improved. After separating the light fixture from the control loop, the selection of light fixtures is no longer limited by the control circuit. LED lights of different power and colors can be selected according to actual needs, breaking through the limitation of traditional aviation lights with a power of no more than 50W. It can also flexibly adjust the flashing frequency by replacing components, solving the problems of fixed flashing and susceptibility to weather interference in traditional equipment. Through the multi-loop time-sharing control design, the system redundancy is effectively improved. Even if a single loop fails, other loops can still operate normally, making it suitable for scenarios with extremely high safety requirements, such as airports and high towers.

This invention discloses a single-loop landscape tower, comprising a tower body, a first ground wire suspension point, a second ground wire suspension point, a first conductor suspension point, a second conductor suspension point, and a third conductor suspension point. The tower body is arch-shaped and includes a first main pole, a second main pole, a first crossarm, a second crossarm, a third crossarm, a fourth crossarm, and a fifth crossarm. The first main pole includes a first segment and a second segment connected sequentially in a vertical direction. The second main pole includes a third segment and a fourth segment connected sequentially in a vertical direction. The fifth crossarm is located between the first and third segments, with its two ends connected to the first and third segments respectively. The first and third crossarms are both located on the side of the first segment away from the third segment and are spaced apart sequentially in a vertical direction. The second and fourth crossarms are located on the side of the third segment away from the first segment and are spaced apart sequentially in a vertical direction. This single-loop landscape tower has advantages such as a novel and unique appearance and reduced investment costs.

The invention relates to the field of liquid level instruments, in particular to an anti-false-alarm water level control system based on dual-redundancy liquid level detection, and aims to solve the problems of false alarm and missing alarm risks, single-point failure hidden dangers, unreliable interlocking control and the like due to the fact that traditional water level monitoring adopts a single-loop system. A dual-redundancy detection mechanism formed by the heterogeneous liquidometers is adopted, interactive verification and quantitative evaluation of a redundancy signal processing module are combined, the reliability of water level control is remarkably improved, the false alarm risk is effectively reduced, data acquisition is conducted through the heterogeneous liquidometers with different principles and different installation positions, common cause faults are fundamentally avoided, and the reliability of water level control is improved. The method has the advantages that the accuracy and the representativeness of the final liquid level data are ensured by performing reasonable judgment and interactive verification on feedback signals and intelligently identifying invalid or wrong data, and finally risk assessment is performed based on the accurate final liquid level data, so that common false alarm conditions in the system are greatly reduced.

In some examples, a graphics processing method for processing electronic data for display on a display screen is provided, the method comprising: evaluating distances between objects of a display scene to be rendered and displayed on the display screen using an aligned and vectorized data structure in a Gilbert-Johnson-Keerthi algorithm running on a single instruction multiple data (SIMD) processor, the structure comprising a separating axis, a position and a rotation of a local coordinate system, and a position of each point in a convex hull; implementing the Gilbert-Johnson-Keerthi algorithm using only a support function and a single loop, wherein the support function comprises loop-free and branch-free functions to support a mapping function, and the single loop repeats the algorithm until an optimal point of a shortest distance between two objects is identified.

The application provides an asynchronous parallel quantum chip automatic calibration software design method and system, comprising: a quantum chip calibration scheduler; two task queues are set in the scheduler: a ready task queue and a waiting task queue; when the tasks in the waiting task queue meet the conditions that can be executed, the tasks are added to the ready task queue; the scheduler schedules the tasks in the two queues in a non-blocking manner; the task is defined as a single loop scanning process of the quantum chip calibration process; for different parameter calibration of a single quantum bit in the quantum chip, the calibration process without a predecessor node in the directed acyclic graph is added to the ready task queue, and the calibration tasks of the remaining nodes are put into the waiting task queue; for calibration of a parameter of multiple quantum bits in the quantum chip, the scanning values of each quantum bit need to be calculated separately; for calibration of different parameters of multiple quantum bits in the quantum chip, the calibration strategy is customized according to the structure of the quantum chip.

The utility model relates to the field of lightning conductor support, especially lightning conductor support for distribution network overhead single loop line, lightning conductor pole top support is divided into middle end support and terminal support, which are installed on the stand, U type hanging ring is installed on the middle end support and terminal support, and the bottom of U type hanging ring is installed with overhang wire clamp; the pole top support in the terminal support is inserted with aluminium clad steel strand, the overhang wire clamp is inserted with drainage strand, and the aluminium clad steel strand and drainage strand are connected through parallel groove clamp. In the utility model, through the setting of terminal support and middle end support, the multiple drainage strands and aluminium clad steel strands can be connected together through parallel groove clamp, and the drainage strands are connected and installed together with grounding round steel through grounding wire terminal, so that the grounding wire installation of aluminium clad steel strand can be realized, and the installation mode is simple and convenient, which is convenient for user operation.

The utility model discloses a lightning stroke protection device of single loop straight line tower relates to power equipment protection technical field. This lightning stroke protection device of single loop straight line tower, including base, the top of base is fixedly connected with lightning arrester, the top of base is fixedly connected with installation subassembly and reinforcing component, through setting up the installation subassembly who constitutes by fixed plate, insert block, spring and fixed block, when installing lightning arrester, only need to press first handle and drive insert block to contract, after loosening handle with connecting piece clamping groove aiming at insert block, spring pushes fixed block and drives insert block to be inserted into clamping groove, and spring continues to provide the thrust and makes insert block and clamping groove keep the close clamping state of joint, avoids the loosening of lightning arrester in the lightning process due to vibration, can complete the fixed connection of lightning arrester and base fast, when disassembling, can separate also by pressing handle, reduces installation maintenance time cost, prolongs the service life of lightning arrester, improves installation efficiency, is convenient for lightning arrester overhaul or replacement.

The invention discloses a hearth negative pressure dynamic compensation control method and device, electronic equipment and a storage medium, relates to the technical field of equipment control, and aims to dynamically adjust the proportion and integral coefficient of an induced draft fan regulator in combination with hearth pressure deviation and change rate thereof so as to avoid the limitation that fixed PID parameters are difficult to adapt to dynamic working conditions; in addition, an enhanced feed-forward signal containing an air feeder public instruction and a pressure change rate feed-forward item can be generated, a coupling compensation mechanism under the dynamic working condition is supplemented, meanwhile, the dynamic upper and lower limits of a frequency conversion instruction are calculated according to the load for boundary constraint, and pressure fluctuation caused by instruction abnormity is prevented. The technical problems that combustion instability is caused by hearth pressure fluctuation and improvement of boiler operation efficiency is restricted due to the fact that existing single-loop control adopts fixed PID parameters and a single feedforward signal and lacks a dynamic coupling compensation mechanism can be solved. The technical effects of stabilizing the hearth negative pressure, avoiding combustion instability, improving the boiler operation efficiency and enhancing the hearth pressure control adaptability under the dynamic working condition are achieved.

The invention relates to the technical field of lighting, in particular to a single-loop lighting control method and circuit and lighting equipment. The single-loop lighting control method comprises the following steps: acquiring an input control signal, performing frequency modulation digital coding processing on the input control signal to generate a modulation control signal, and outputting a PWM (Pulse Width Modulation) signal corresponding to the modulation control signal; a PWM signal is adopted to drive an NMOS tube to work so as to transmit a modulation control signal and power supply electric energy to the drive circuit module; and the driving circuit module demodulates the modulation control signal transmitted by the switching action of the NMOS tube to obtain an illumination control signal, and drives the illumination module to work based on the illumination control signal. According to the application, the modulation control signal and the power supply electric energy can be transmitted to the driving circuit module in a single loop formed by connecting the control circuit module, the driving circuit module and the power supply module in series, an independent loop does not need to be additionally arranged for a complex illumination control signal for transmission, and abundant illumination functions can also be realized.

The application relates to an energy storage system and a control method thereof, which comprises an energy supply system, an energy storage module and a user unit. By introducing the energy storage module, the matching of the energy supply side of the energy supply system and the demand of the user side is improved, the volume and cost of the energy supply system are reduced, the irreversible damage of the energy supply system caused by frequent start and stop is avoided, and the service life of the energy supply system is prolonged. By adopting the mode of flow distribution and energy distribution of the first energy carrying medium entering the energy storage system in a single loop, and by adopting the mode of the first energy carrying medium supplying energy for cooling the second energy carrying medium and adjusting the in-out position of the first energy carrying medium and the second energy carrying medium in the storage tank in a double loop, it is ensured that one way of the energy carrying medium can directly input the energy supply system to supply power for the user unit, so that the cold start can be quickly realized. Meanwhile, by utilizing the temperature difference and density difference of the energy carrying medium in the storage tank and the characteristics of natural convection, the temperature of the energy storage module is uniform, and the energy storage effect is good.

The application discloses a method and system for collaborative control of fuel quantity and air blast quantity of a lime rotary kiln based on multi-target dynamic optimization. A layered architecture is adopted: the upper layer is triggered according to a first period, three target functions and constraint and preference modes are constructed, an adaptive multi-target particle swarm algorithm is run to output a Pareto frontier, and optimal temperature set values and optimal air-fuel ratio set values are selected; the lower layer is triggered according to a second period, a model predictive controller adopts a two-input two-output dynamic matrix model, a rolling optimization calculation is performed on a control increment, and the control increment is output to a coal injection valve and a fan frequency converter to drive a rotary kiln body, and optimal set values and NOx concentration feedback closed loops are output. The application realizes three-target Pareto collaborative optimization, can improve the qualified rate of activity, and reduce comprehensive energy consumption and NOx emission. The application solves the problem that existing control only focuses on a single temperature index, adopts a fixed air-fuel ratio or a single-loop PID, and cannot take into account three targets of lime activity, comprehensive energy consumption and NOx emission.

The utility model belongs to the technical field of charging system power supply control, and discloses a multi-loop power supply circuit for a charging pile, a charging device and charging equipment. The multi-loop power supply circuit comprises a power supply end, a Q1 power supply switch, a Q2 power supply switch, a KM1 alternating current contactor and a QF1 load switch; the KM1 alternating current contactor comprises a normally-open main contact, a normally-closed main contact and an A1 coil, the Q1 power supply switch input end and the Q2 power supply switch input end are both connected with the power supply end, the Q2 power supply switch output end is connected with the normally-open main contact of the KM1 alternating current contactor, the Q1 power supply switch output end is connected with the normally-closed main contact of the KM1 alternating current contactor, and the Q1 power supply switch output end is connected with the normally-closed main contact of the KM1 alternating current contactor. A normally-closed main contact and a normally-open main contact of the KM1 alternating current contactor are connected with the input end of a QF1 load switch, the output end of the QF1 load switch is used for being connected with a load, the input and output end of an A1 coil is connected with the output end of a Q2 power supply switch, and the technical problem that in the prior art, a charging pile is powered off from a single loop, and when the loop is powered off or breaks down, all terminals cannot operate is solved.

Upon determining calibration parameters for a single-loop controller that minimize a difference between an input to the single-loop controller and a response from the single-loop controller, calibration parameters for a cascade controller are determined based on the determined calibration parameters for the single-loop controller. The cascade controller includes a secondary controller and a primary controller. The calibration parameters for the cascade controller are provided to a second computer in a vehicle.

The application discloses a container top-mounted energy storage double-loop thermal management liquid cooling unit and a temperature control method, and belongs to the field of energy storage thermal management. The unit adopts a top-mounted horizontal layout, integrates an inverter PCS side temperature control loop and a battery Pack side temperature control loop, realizes double-loop heat cooperation through a water-water heat exchanger, and realizes multi-working-condition temperature control in cooperation with a refrigeration cycle. The application does not occupy the ground and internal space of the container, can simultaneously precisely control the temperature of the inverter PCS and the battery Pack, has the functions of automatic heat dissipation, heat recovery and forced refrigeration, solves the problems of large occupied area and single function of the existing vertical single-loop unit, avoids the risk of rodents through top-mounted installation, is suitable for outdoor energy storage scenes, and meets the efficient integration demand of the container energy storage system.

The application relates to the technical field of three-dimensional motion mechanisms, in particular to a single-loop two-branch-chain three-translational parallel robot, which comprises a static platform, a dynamic platform, a simple branch chain one and a simple branch chain two, the simple branch chain one is composed of a moving pair one, a rotating pair one, a rotating pair two and a rotating pair three which are sequentially connected in series, the simple branch chain two is composed of a moving pair two, a rotating pair four, a rotating pair five and a rotating pair six which are sequentially connected in series, one end of the dynamic platform is connected with the rotating pair three, and the other end is connected with the rotating pair six, the moving pair one and the moving pair two are arranged on the static platform, and the moving direction of the moving pair one is perpendicular to the moving direction of the moving pair two, the application is composed of only two simple branch chains to form a loop, the required part quantity is small, the cost can be reduced, and the application has obvious advantages such as simple structure, convenient design and manufacture which are composed of only rotating pairs and moving pairs, difficulty in interference between the branch chains, large working space and the like; meanwhile, the application has motion decoupling and symbolic position direct solution.

The utility model relates to ship control technical field, specifically disclose a kind of columned wind oil remote cut-off control system, including main distribution board and the direct current distribution board of with the main distribution board electric connection, the isolating switch is arranged on the main distribution board, the fan emergency cut-off switch and oil pump emergency cut-off switch of several with the isolating switch electric connection are arranged on the main distribution board, the direct current distribution board is provided with several remote cut-off buttons, every fan emergency cut-off switch and oil pump emergency cut-off switch are respectively with two remote cut-off buttons electric connection.The utility model adopts redundancy line and columned design, can branch control fan and the cut-off of oil pump, reduce cut-off range, guarantee the power required by ship, once ship occurs, such as single distribution board, single equipment electrical failure or fire or single loop failure or short circuit, at this moment, only need to cut off the fan and oil circuit of single side busbar, avoid the whole ship power failure and lead to the loss of power of ship, good safety.

The technical scheme of the invention discloses a design method of an interlocking control loop suitable for a multi-loop low-voltage ship shore power system, which is characterized by comprising the following steps of: dividing circuit breakers in an equivalent circuit of the multi-loop low-voltage ship shore power system into unit circuit breakers, in-box circuit breakers and wharf circuit breakers; according to the method, on-off states of a unit circuit breaker, an in-box circuit breaker and a wharf circuit breaker are judged, whether parameters of a wharf power supply and parameters of a ship power supply are adjustable or not are combined to select a proper control loop, so that ship-shore power conversion is achieved, the parameters of the wharf power supply comprise adjustable parameters and non-adjustable parameters, and the parameters of the wharf power supply comprise adjustable parameters and non-adjustable parameters. The ship power supply parameters comprise adjustable parameters and non-adjustable parameters. The interlocking control loop suitable for the low-voltage ship shore power system is not only suitable for interlocking design of a single-loop low-voltage ship shore power system, but also suitable for interlocking design of a multi-loop low-voltage ship shore power system.

The invention relates to a heat collection field loop heat transfer medium flow balance adjusting method which comprises the steps that pressure loss calculation is conducted on a plurality of heat collection loops through fluid resistance characteristic modeling, and loop pressure loss distribution data are obtained; according to the loop pressure loss distribution data, Cv value calculation is carried out with the maximum pressure loss loop as a reference value, and Cv distribution results of the multiple loop inlet adjusting valves are obtained; performing single-loop flow boundary calculation on the process temperature range parameters through a temperature flow inversion algorithm to obtain a Cv deviation allowable range of the regulating valve; and based on the Cv deviation allowable range, the opening degrees of a plurality of loop regulating valves are subjected to graded regulation according to the Cv distribution result, and a loop outlet temperature deviation control result is obtained. According to the invention, the hierarchical valve adjustment of the parallel loop is realized, and the operation stability of the parallel heat collection loop type photo-thermal power station is improved.

The invention discloses a converter single-loop control method, system and equipment based on an all-drive system model, and belongs to the field of power systems, and the method comprises the steps: carrying out the coordinate transformation of the three-phase voltage and current of a converter and the output voltage of the last moment, and obtaining the two-phase voltage and current, the component of the two-phase output voltage on the d axis is determined as a first output voltage; performing estimation value calculation on the two-phase voltage, the two-phase current and the first output voltage based on the observation parameters, and driving an estimation error to converge to a zero value within a preset time through an observer so as to obtain a disturbance estimation value and a state estimation value of the converter; the disturbance estimation value and the state estimation value are calculated based on the control parameters of the controller established by the all-drive system model to obtain the current voltage, and the control signal is determined according to the current voltage to perform single-loop control on the three-phase converter, so that the disturbance suppression capability of the converter can be improved, and the stable operation of the converter is realized.

According to the novel low dropout linear regulator provided by the embodiment of the invention, the compensation of the voltage change output by the error amplifier and the voltage stabilization of the output end are respectively controlled through different loops, so that the voltage precision of the output end is determined by a single loop, and the precision can be very high; and the load adjustment rate and the linear adjustment rate are excellent. The PSRR and transient response performance of the architecture and the corresponding loop bandwidth are determined, and due to the fact that the corresponding loop bandwidth can be high, the PSRR and transient response performance are extremely good. According to the architecture, the loop bandwidth for adjusting the voltage precision does not need to be relatively high, so that the power consumption can be designed to be relatively low, the power consumption and the bandwidth of an external loop are increased along with the increase of the load, and the power consumption can be reduced to an nA level under a no-load condition.

The present application relates to heavy hydraulic machine technical field, the present application provides a kind of heavy hydraulic machine main frame's pre-tightening tool, pre-tightening assembly, heavy hydraulic machine main frame and the pre-tightening method of heavy hydraulic machine main frame, wherein pre-tightening tool is used to separately apply set pre-tightening force to each rope, rope is used to single loop around the outside of main frame, pre-tightening tool includes: two clamping tables, one clamping table is used to connect the first end of rope, another clamping table is used to connect the tail end of rope;Two two-link assemblies, each two-link assembly is located between two clamping tables, and the two ends of each two-link assembly are connected to the corresponding clamping table;Driving member, including fixed end and driving end, fixed end is arranged in one clamping table, and driving end is connected with two-link assembly, to drive another clamping table to move to tighten the rope.

The present application relates to the technical field of hydraulic control, in particular to a kind of multi-hydraulic actuator synchronous control method.Mainly includes: step one: complete single-hydraulic actuator closed-loop controller design;Step two: design synchronization deviation compensation link;Step three: debug deviation compensation gain.The present application can flexibly, efficiently adjust the synchronization control precision of multi-hydraulic actuator by increasing synchronization deviation compensation link between closed-loop controller output and control element, and can be suitable for large quantities of hydraulic actuator synchronization control;The single-loop closed-loop control of each hydraulic actuator of the present application and synchronization deviation compensation control are relatively independent design, and synchronization precision is adjustable through deviation compensation gain, can effectively improve the flexibility and control accuracy of multi-hydraulic actuator synchronization control.

The invention discloses a method for improving the qualified rate of coked concentrated ammonia water based on PID control, and belongs to the technical field of coking coal chemical industry. The problems that in an existing coking ammonia water recovery process, traditional single-loop PID control is difficult to cope with multivariable and strong-coupling complex working conditions, system fluctuation and control lag are likely to be caused, and therefore the stronger ammonia water product quality and the recovery efficiency are affected are solved. Cascade PID control is carried out on three groups of key parameters including the tower top temperature and the ammonia water reflux quantity of the desorption tower, the tower layer temperature and the steam flow of the desorption tower and the liquid level and the barren liquor temperature of the ammonia absorption tower, and automatic adjustment is carried out with the assistance of a water supplementing adjusting valve, so that quick response and cooperative stability among multiple parameters are realized, the accuracy of process control is effectively improved, and the production efficiency is improved. Finally, the purpose of remarkably improving the qualified rate of stronger ammonia water products is achieved.