71results about How to "Easy to implement modularity" patented technology

The invention provides a large-scale parallel system-based distributed communication system and a control method of the large-scale parallel system-based distributed communication system. According to the control method, at a time of the triangle-carrier wave peak of a PWM (pulse-width modulation) module, sub-controllers pack collected analog signals and digital signals of a corresponding converter cabinets into a user-defined one-frame data format, and transmit the packet to a main controller, and trigger start signals are generated after all the sub-controllers transmit the collected data to the main controller; the main controller is responsible for the control algorithm and the treatment of fault signals, reads the data transmitted by the sub-controllers after receiving the trigger signals, and transmits control command information to each sub-controller after the computing treatment; the sub-controllers control the corresponding PWM converter cabinets after receiving the control information. Namely, one transmitting and receiving process can be completed by the distributed communication control. By the system and the control method, the modularization and the parallel control of the wind power converter can be easily realized, the faults of the system can be easily positioned, and the circulation flow and the uneven flow of the parallel system can be effectively restrained.

Interconnection bus including longitudinal interconnection bus and transverse interconnection bus interconnected through reconfigurable switch network are setup between reconfigurable processing units arranged in array. Reconfigurable processing units are connected to each other longitudinally through basic unit data lines, which are connected to transverse interconnection bus through reconfigurable switch network. In transverse adjacent reconfigurable processing units at same stage of pipeline, their adders, shifters, accumulators, and register are connected through interconnection lines containing control switch. Reconfigurable processing unit itself of using COROIC algorithm possesses high reconfigurability, providing features of realizing wide used DSP algorithms, simple structure and rules, easy of modularized. Thus, the reconfigurable processing unit is suitable for being as core unit in reconfigurable chip.

The invention provides an automatic strawberry picking device based on the delta parallel mechanism, and belongs to the field of agricultural machines. The automatic strawberry picking device capableof achieving strawberry ridge culture comprises a supporting frame, a longitudinal moving device, a transverse moving device, the delta parallel mechanism, a picking execution device, an adsorbing device and a camera, wherein the longitudinal moving device and the transverse moving device are located at the upper end of the supporting frame, the delta parallel mechanism is located below the transverse moving device, the picking execution device is located below a movable platform of the delta parallel mechanism, and the adsorbing device is placed on the picking execution device. The suspensiontype is adopted in the automatic strawberry picking device, the occupied area is reduced, consequently the planting area is increased, more economic benefits are brought, and the automatic strawberrypicking device has the advantages of being capable of conducting automatic location and zero-damage pickup, high in efficiency, simple in structure and stable and reliable in work.

The invention provides a chained static synchronous compensator with an active power adjusting capacity. The chained static synchronous compensator with the active power adjusting capacity comprises three phases of cascading chain links, connection reactors and breakers. Each phase of the cascading chain link comprises n cascading units which are connected in series at the alternating current side. One ends of the three phases of the cascading units are connected to form a neutral point of the static synchronous compensator, and the other ends of the three phases of the cascading units are connected into a three-phase grid through the corresponding connection reactors and the corresponding breakers. The invention further provides a corresponding cascading unit. An STATCOM and a BESS are combined, the capacity of controlling active power and reactive power at the same time is achieved, grid connection of medium voltage and high voltage is achieved in a manner of cascading multiple cascading units, a power switch device which is low in voltage resistance is used for achieving energy conversion of high voltage levels, modularization and redundancy design are easy to achieve, the function of balancing a battery is achieved, meanwhile, a bidirectional DC / DC converter is introduced at the direct current side, and ensuring the cycle life of the battery is facilitated.

The invention discloses an asymmetric double-side type permanent magnet straight line synchronous motor which comprises a long stator and a short rotor. The short rotor comprises an armature and a magnetic pole which are arranged on a movable platform and are placed on the two sides of the long stator respectively. The magnetic pole is of a salient pole type structure or a non-salient pole type structure. The armature comprises an armature core and armature windings arranged on armature teeth in a sleeved mode. The magnetic pole comprises a magnetic pole iron core and a permanent magnet. The long stator is formed by a plurality of magnetism adjusting iron blocks which are arrayed in a straight line. The difference between the number of the armature teeth and the number of the magnetism adjusting iron blocks is 1-2. According to the motor, the armature and the magnetic pole are used as one side of the short rotor respectively, the advantage of a flux switching type structure is achieved, magnetic pole radiating difficulty is avoided effectively, the shortcoming that a magnetic circuit and an electric circuit compete is overcome, the using number of permanent magnets is greatly reduced, magnetic field adjusting capacity is improved, and system cost is lowered.

The invention discloses an output voltage sampling method and system for a flyback converter based on primary feedback. Through voltage information of an auxiliary winding, the output voltage feedback quantity of the current period is adjusted according to the output voltage feedback quantity of a previous switching period of the flyback converter and the voltage information of the auxiliary winding of the current switching period, and thus the output voltage can be accurately sampled. The sampled output voltage feedback quantity is used for generating a switching signal for controlling a switching tube to work, and thus constant-voltage output of the flyback converter can be achieved. An additional sampling hold circuit is not needed, modularization and integration are easy to achieve, and sampling cost is reduced.

The invention discloses a low-grade heat energy driven electrode liquid self-circulating hydrogen production method, and belongs to the technical field of new energy. Low-grade heat energy serves as driving force, and continuous hydrogen production is achieved through the concentration change of a working solution. The low-grade heat energy driven electrode liquid self-circulating hydrogen production method comprises the steps: firstly, the low-grade heat energy is converted into chemical potential energy of the working solution through a low-temperature multi-effect distillation method; thenthe chemical potential energy is converted into the potential difference between two electrodes of a cell stack based on the reverse electrodialysis principle; and then hydrogen and oxygen are produced through a reduction reaction or an oxidation reaction occurring on the hydrogen production electrode and the oxygen production electrode in the same electrode liquid. The waste solution losing partof the chemical potential energy is recycled after flowing out from the cell stack, and then regenerated under driving of the low-grade heat energy; the electrode liquid is self-circulated between a hydrogen production electrode liquid cavity and an oxygen production electrode liquid cavity in the two ends of the cell stack; the low-grade heat energy can be continuously, efficiently and steadily converted to be utilized; a hydrogen production system does not need to operate at the high temperature and high pressure, mechanical moving parts are few, and capacity configuration is flexible; and the single-type electrode liquid is adopted and is in an electrolyte closed cycle, and long-time operation can be achieved only by supplying deionized water.

The invention discloses an asymmetric double-stator cylindrical permanent magnet linear motor which comprises a short stator and a long rotor. The short stator is of a double-stator asymmetric structure, one side of the short stator is provided with an armature, the other side of the short stator is provided with a magnetic pole, the armature and the magnetic pole are fixed to a working platform, relatively rest, are independent from each other and are located on the different sides of the rotor. The long rotor is located between the two stator bodies. The advantages of a flux switching structure are achieved, and the defects that the magnetic pole is difficultly radiated, and a magnetic circuit and a circuit compete with each other are effectively avoided. The short stator armature portion is directly fixed to the working platform, the short stator magnetic pole portion is fixed to a long shaft, and a required gas length is kept between the long rotor and the short stator through a sliding bearing. According to the asymmetric double-stator cylindrical permanent magnet linear motor, the armature and the magnetic pole are used as the stator bodies in the short stator, so that the usage of a permanent magnet is greatly reduced, the radiating condition of the permanent magnet is not affected, and the asymmetric double-stator cylindrical permanent magnet linear motor is applicable to application occasions where the low-cost linear motion is needed in the fields of industry, civil use, medicine and the like.

The invention belongs to the technical field of hybrid robot processing, and particularly relates to a novel five-degree-of-freedom hybrid mechanism with a reconfigurable adjustment device. The novelfive-degree-of-freedom hybrid mechanism comprises the reconfigurable adjustment device, five PUS driving movement branch chains of the same structure, an intermediate PRPU driven movement branch chainand a movable platform. The reconfigurable adjustment device comprises five PRR driving movement branch chains of the same structure and an intermediate platform. The reconfigurable property of the novel five-degree-of-freedom hybrid mechanism is achieved mainly through the structural inclination angle of the reconfigurable adjustment device; the tail-end movable platform can achieve three-dimensional movement and two-dimensional rotation mainly by connecting the PUS driving movement branch chains and the intermediate PRPU driven movement branch chain with the intermediate platform and the movable platform,, and the overall hybrid mechanism has a large movement stroke along the Z axis. The hybrid mechanism integrates the advantages of a series-connection mechanism and a parallel-connection mechanism, has the advantages of large working space, high rigidity, good structural symmetry, high motion flexibility, high carrying capacity and the like, and is suitable for machining large-sizedand complex structural assemblies in the fields of aerospace, ships, military industries and the like.

The invention discloses a control method of modular fully-bridge grid-connected inverters capable of parallel operation, belonging to the control field of inverters. A control circuit of the method comprises a control part and a modulation part. The closed-loop regulation is respectively carried out on currents of two output filtering inductors behind the full-bridge grid-connected inverters, fundamental wave components of currents of a live wire and a zero wire which are connected in parallel at the output side of each inverter are equal to ensure that no current coupling relationship exists among the inverters, thereby enabling the full-bridge grid-connected inverters to work in parallel by sharing a direct current bus. The full-bridge grid-connected inverters controlled by the invention is easy to modularize, omits a power frequency isolation transformer at the output end of each inverter, reduces the volume and the weight of an integral machine, saves the system cost, and is especially suitable for application of a photovoltaic grid-connected generating system.

The invention discloses a pedal type lower limb rehabilitation training device comprising two groups of pedal rotating mechanisms, a knee-hip joint moving mechanism and an ankle joint moving mechanism. Each pedal rotating mechanism comprises a pedal and a pedal shaft, wherein one end of the pedal shaft is connected with the pedal, the other end of the pedal shaft is connected with a leg-knee-hip joint moving mechanism and the ankle joint moving mechanism. The knee-hip joint moving mechanism comprises a central shaft, a transmission wheel and two connecting rods, wherein the two connecting rods are same in structure and connecting mode, and are symmetrically arranged relative to the central point of the central shaft. The ankle joint moving mechanism comprises a left sleeve, a right sleeve, an input transmission mechanism, a left transmission mechanism, a right transmission mechanism and two groups of output transmission mechanisms, wherein the transmission directions of the left transmission mechanism and the right transmission mechanism are opposite. The device realizes the transmission that a knee-hip joint and an ankle joint can move around the same central line, realizes the positive and passive rehabilitation training of six joints of a lower limb of a patient, has a compact structure, high space utilization, and accurate control, and is easy to realize modularization of the device.

A control system comprises main control device including multipath switch, microcontroller, circuits of signal driving, crystal oscillation, reset and power, slave control device including microcontroller, circuits of signal rectification, driving crystal oscillation, reset, and power, and bus. It is featured as collecting switch data and converting it to be control data then sending it to bus by main control device, receiving control signal from bus, driving the load to work by slave control device after the control signal continuously checked.

The invention discloses a multifunctional mixed power electronic transformer based on an MMC (multimedia card) matrix converter and a control method. The power electronic transformer comprises a powertransformer and an MMC matrix converter, a primary winding of the power electronic transformer is connected with a power grid, a secondary winding is connected with an input end of the MMC matrix converter in a star manner, an output end of the MMC matrix converter penetrates an LC filter and is connected with an isolation transformer, one end of the isolation transformer is connected with the secondary winding, and the other end of the isolation transformer is connected with a load. According to the transformer, the electric energy conversion efficiency of the power electronic transformer isimproved, compactness of the transformer is improved, the MMC matrix converter in transformer topology is based on a modular multilevel structure, so that the transformer is applied to high-voltage high-power occasions, voltage compensation can be achieved when the power grid is faulted, the electric energy quality of the power grid is improved, arm paths of a matrix converter structure are relatively independent, and flexibility of control strategies is improved.

The invention discloses an incident light angle continuous adjusting device and an angle continuous adjusting method, the incident light angle continuous adjusting device comprises a plane mirror, anelectric rotary table and an off-axis oval mirror, and the plane mirror is fixed on the electric rotary table; the center of the reflecting surface of the plane mirror coincides with the rotating center of the electric rotating table, the reflecting surface of the plane mirror faces the inner wall of the off-axis oval mirror, a non-rotating oval conjugate reflecting surface is established on the off-axis oval mirror, and the non-rotating oval conjugate reflecting surface is provided with two focuses. Wherein one focus coincides with the center of the reflecting surface of the plane mirror, andthe other focus is converged to the to-be-measured surface of the sample. According to the device, the incident angle of the light path can be continuously adjusted within a certain angle range, thestructure is simple, the adjustment method in the implanted light path system is convenient, and the incident point of the light path can be ensured not to be fixed in the continuous adjustment process.

The invention provides a closed-loop regulated high-precision super-audio pulse power supply, which comprises a main circuit, a super-audio pulse current amplitude regulating circuit, a super-audio pulse current frequency and duty ratio closed-loop regulating circuit, a touch screen man-machine interaction circuit and a coupling circuit. According to the invention, high-precision output of the pulse current frequency and the duty ratio of the super-audio frequency (greater than or equal to 20kHz) is realized through a closed-loop regulation method. A contactor is connected to the output end ofa base value direct-current power supply in parallel, the connection is simple, the operation is convenient, and a higher current change rate can be realized. Because of the adoption of an external parallel coupling mode, the super-audio pulse power supply is easy to realize modularization, and can realize external parallel coupling with any type of plasma spraying direct-current power supply. Bycollecting the base value direct current output by the base value direct-current power supply, automatic coupling and control of the super-audio frequency pulse current in plasma spraying can be realized.

The invention discloses a fault-tolerant linear motor capable of reducing and saving a permanent-magnet material, belonging to the technical field of motor manufacturing. The fault-tolerant linear motor capable of reducing and saving a permanent-magnet material comprises a primary stage and a secondary stage, wherein the secondary stage is in a projecting pole structure having equal tooth width; an air gap is formed between the primary stage and the secondary stage; the primary stage comprises armature teeth of a projecting pole structure and fault-tolerant teeth of a projecting pole structure; the armature teeth and the fault-tolerant teeth are alternately arranged in a staggered mode; each armature tooth is wound with a concentrated winding; a permanent magnet is adhered to the end part of each armature tooth; the width of the permanent magnet is half of the tooth width of the armature tooth; and the magnetizing directions of the permanent magnets on all the armature teeth are the same and are parallel to the central axis of each armature tooth. According to the invention, the problem of serious magnetic leakage of the traditional flux reversal linear motor is solved to some extent, the utilization ratio of the permanent magnet is improved, and the manufacturing cost of the motor is indirectly reduced; and meanwhile, the flux reversal linear motor is endued with high fault-tolerant property, and thus, the fault-tolerant linear motor has favorable application prospect in wheel-rail transportation having high reliability requirement.

The invention discloses a low-grade heat energy driven electrode liquid self-circulating hydrogen production method, and belongs to the technical field of new energy. Low-grade heat energy serves as driving force, and continuous hydrogen production is achieved through the concentration change of a working solution. The low-grade heat energy driven electrode liquid self-circulating hydrogen production method comprises the steps: firstly, the low-grade heat energy is converted into chemical potential energy of the working solution through a low-temperature multi-effect distillation method; thenthe chemical potential energy is converted into the potential difference between two electrodes of a cell stack based on the reverse electrodialysis principle; and then hydrogen and oxygen are produced through a reduction reaction or an oxidation reaction occurring on the hydrogen production electrode and the oxygen production electrode in the same electrode liquid. The waste solution losing partof the chemical potential energy is recycled after flowing out from the cell stack, and then regenerated under driving of the low-grade heat energy; the electrode liquid is self-circulated between a hydrogen production electrode liquid cavity and an oxygen production electrode liquid cavity in the two ends of the cell stack; the low-grade heat energy can be continuously, efficiently and steadily converted to be utilized; a hydrogen production system does not need to operate at the high temperature and high pressure, mechanical moving parts are few, and capacity configuration is flexible; and the single-type electrode liquid is adopted and is in an electrolyte closed cycle, and long-time operation can be achieved only by supplying deionized water.

The provided arbitrary-travel high-precise direct driver comprises: based on bionic motion principle, applying piezoelectric ceramic as basic motion executive element, high-tension high-toughness mono-strand or multi-strand ring rope as output element, lateral / vertical shrinking unit as drive element. Wherein, the control precision can achieve up to 50nm, output force up to 50-100N or more. This invention has wide application, special to anthropomorphic robotic.

The invention provides a scanning electron microscope demonstration method not adopting an optical lens. According to the method, a material is prefabricated into a light path model of a specific shape, the light path model is matched with a sample model for use, the whole process including the rotation, focusing and deflection of electron beams in the scanning electron microscope, the interactionwith the sample, and the sample collection is simulated by virtue of the mechanism of attraction for soft magnetic materials of an electromagnet, and the adverse effects caused by using the optical lens for simulation are avoided. The invention further provides a scanning electron microscope demonstration device not adopting the optical lens. The device is placed in a transparent lens cone and asample bin, the demonstrated part is convenient to observe and also is very convenient to arrange and refit. The method and the device have the beneficial effects that the whole process of imaging ofthe scanning electron microscope can be demonstrated, namely, the whole process from the generation of electron beams to signal receiving and the profound principle contained in the whole process aredemonstrated; the whole demonstration process is intuitional and visual, so that the principle is very easy to understand, and the device also has the advantages of low cost, simplicity in refitting and the like.

The invention discloses a tower type solar fused salt heat absorber heat preservation structure. The tower type solar fused salt heat absorber heat preservation structure comprises an inlet / outlet container heat preservation module and a straight segment pipe row heat preservation module. The inlet / outlet container heat preservation module is arranged outside an inlet container and / or an outlet container of a heat absorber and comprises a box body structure unit, a box body heat preservation unit and a first electric heating unit. The straight segment pipe row heat preservation module is arranged at the backlight side of a straight segment pipe row of the heat absorber and comprises an inner protection plate, a second electric heating unit and a second heat preservation assembly. Accordingto the tower type solar fused salt heat absorber heat preservation structure, a double-seal structure is adopted at the contact position of a heat preservation box and the straight segment pipe row of the heat absorber, so that air leakage of a contact surface is avoided; it is guaranteed that a heat-absorbing tube expands and contracts freely, and the heating effect and the heat preservation effect of an electric heater are guaranteed; meanwhile, the fixation mode of a heat preservation material is optimized, and the heat preservation structure is simplified; and in addition, by means of theheat preservation structure, modularization can be achieved easily, site construction can be conducted conveniently, and difficulty of overhead work is lowered.

The invention discloses a magnetic latching type solenoid control microwave switch driving system, which mainly comprises an upper coil assembly, a lower coil assembly, a magnetic steel array group, an iron core group and a yoke group, wherein the upper coil assembly and the lower coil assembly consist of upper and lower groups of coils, of which the parameters are the same, and the encircling direction of the current of the upper and lower groups of coils are opposite; the magnetic steel array group comprises a plurality of pieces of block-type magnetic steel which are arranged along the circumference and homopolarly centripetal; the iron core group consists of a transmission shaft and an iron core relatively fixed with the transmission shaft; the magnetic steel array group encircles the iron core; the iron core group passes through the axes of magnetic stele arrays; and yokes covers a whole mechanism. Under the condition that the coils are not powered on, the driving system can keep an upper stable state and a lower stable state of the iron core group; when a pulse signal passes through the lower coils, the iron core group moves upwards from the lower state; when the pulse signal passes through the upper coils, the iron core group moves downwards from the upper state; and the travel change of the iron core group reflects switch on and switch off of a travel control microwave switch of an execution mechanism. The magnetic latching type solenoid control microwave switch driving system has the characteristics of large travel, energy saving, compact structure, small volume and the like.

The invention belongs to the field of active frequency support of new energy power generation equipment, and particularly discloses an active support control method of new energy power generation equipment for power grid frequency. The method comprises the steps of acquiring a power grid angular frequency deviation signal in real time through a phase-locked loop; processing the angular frequency deviation signal through a compensation link to obtain a compensation angle signal after amplitude limiting, and subtracting the compensation angle signal from an original phase angle signal output by the phase-locked loop to obtain a phase-locked angle signal; and generating a control signal by a control loop of the new energy power generation equipment based on the phase-locked angle signal so as to achieve active support of the new energy power generation equipment on the power grid frequency. According to the method, the power grid angular frequency deviation is introduced into the output phase angle of the phase-locked loop through a compensation link, so that the new energy power generation equipment has the active frequency support capability, is suitable for various new energy power generation equipment comprising the phase-locked loop under traditional vector control, can effectively provide active frequency support when frequency disturbance occurs in the power grid, is high in portability, and is easy to realize the modular design of the frequency support function.

The invention discloses a lithium ion storage battery single battery equalization circuit and an equalization method. The circuit comprises a switch element, an equalization element, and a power dissipation element connected in series; a first single body voltage sampling circuit; a current-limiting control circuit; a first driving circuit; a second single body voltage sampling circuit; a linear control circuit; and a second driving circuit. The current-limiting control circuit outputs control voltage for controlling the work state of the switch element according to sampling voltage of a single battery, the first driving circuit controls the turn-on or turn-off of the switch element according to the control voltage of the current-limiting control circuit, the linear control circuit controls the control voltage for controlling the work state of the equalization element according to the sampling voltage of the single battery, and the second driving circuit controls the work state of the equalization element according to the control voltage of the linear control circuit and controls the single battery in an equalization manner. According to the circuit and the method, the voltage of each single battery of a battery pack is equalized via equalization control, and big difference of performances of single batteries due to inconsistent voltages between single batteries of the battery pack is prevented.

The invention relates to the field of fluorescence detection, and discloses a fluorescence detection optical system. The fluorescence detection optical system comprises an objective table, a light path module and an adjusting mechanism, the objective table is used for placing a sample to be detected, and the objective table is provided with a detection channel; the light path module is used for exciting and detecting a fluorescence signal of a to-be-detected sample, a detection light path is arranged in the light path module, and the detection light path is communicated with the detection channel; the adjusting mechanism comprises a first adjusting assembly and a second adjusting assembly, the first adjusting assembly is used for adjusting the to-be-detected sample to be aligned with the detection channel, and the second adjusting assembly is used for adjusting the to-be-detected sample to coincide with the focus point of the detection light path. The fluorescence detection optical system provided by the invention is simple, convenient and accurate in sample position calibration, simple in optical path structure, reasonable and compact in optical path layout, and easy to realize miniaturization and modularization.

The invention relates to a heat management system of a vehicle power battery. The heat management system comprises a compressor set, a four-way reversing valve, a condenser fan, an external heat exchanger, a battery heat exchanger and a battery cell unit, wherein the external heat exchanger and the battery heat exchanger are connected through a pipeline and are connected with the compressor set and a flash evaporation intermediate cooling unit through the four-way reversing valve, the compressor set comprises two compressors, the flash evaporation intermediate cooling unit is connected betweenthe two compressors; the two compressors form a series or parallel structure by controlling the on-off of each switching valve on the connecting pipeline, under the refrigeration working condition, the parallel mode is adopted, the cooling effect of the battery is enhanced, under the working condition of the heat pump, a series operation mode is adopted, the double-stage compression is achieved,so that the heating efficiency of the battery is remarkably improved under the low-temperature condition. The system has the characteristic that the battery is subjected to heat management independently of the vehicle, the technical bottleneck of rapid reduction of output of the power battery under the low-temperature condition in winter is solved, and meanwhile, the system development is easy tomodularize and standardize.

The invention discloses a voltage source inverter parallel control system. The voltage source inverter parallel control system comprises a plurality of voltage source inverter modules connected in parallel; each voltage source inverter module comprises a voltage source, a three-phase inverter main circuit and an LC filter circuit which are connected sequentially; the voltage source inverter modules are further connected to a load with a switch; the system further comprises a current acquiring module, a first voltage acquiring module, a second voltage acquiring module, a reference signal computing module, a phase synchronizing module and a voltage reference signal generating module, as well as a control module used for controlling the switch of the three-phase inverter according to the voltage reference signal, filter inductive current, and a pulse control signal generated according to voltage and carrier voltage output by the voltage source inverter modules. The voltage source inverter parallel control system has higher stability and reliability.

The invention discloses an input-parallel output-series dual-active bridge converter and a control method thereof. The converter comprises n DAB converter modules, n is an integer greater than or equal to 2; the input ends of the n DAB modules are connected in parallel to a DC micro-grid, and the output ends of the n DAB modules are connected in series to a medium-voltage direct-current power distribution network; by the phase shift ratio of each DAB converter module is changed, so that the transmission power of the input-parallel output-series dual-active bridge converter is controlled; and the output voltage balance of each DAB converter module is realized through voltage-sharing control. According to the input-parallel and output-series dual-active bridge converter and the control method thereof, interconnection between the direct-current micro-grid and the medium-voltage direct-current power distribution network can be achieved, bidirectional flow of energy is achieved; and when parameters between the DAB converter modules are different, output voltage balance of the DAB converter modules can be achieved through voltage-sharing control.

The invention discloses a Brayton cycle system modeling method based on nonlinear programming. The Brayton cycle system modeling method comprises the five steps of boundary condition determination, process division, parameter explicitation, local programming and overall programming. In local programming, three losses of a hot end, a cold end and a heat regeneration end are expressed as ab objective function, and a non-derivative local optimal algorithm is adopted so as to achieve a high convergence speed; and in overall programming, the flow deviation of the heat end, the cold end and the heat regeneration end represents the objective function, and a heuristic global optimization algorithm is adopted so as to find a global optimal solution as much as possible. According to the method, the global optimal solution of the hot efficiency and the losses can be found through one-time calculation through overall programming outer iteration and local programming inner iteration, equation closure discussing, initial value debugging and heuristic algorithm debugging are avoided, the solving difficulty is reduced, and multi-configuration and multi-variable synchronous optimization is achieved.