32results about How to "Does not affect response speed" patented technology

The invention discloses a power control system of an excavator. The power control system is characterized by comprising a pressure sensor, a main pump displacement regulator, a revolution speed sensor and a loading calculation module, wherein the pressure sensor and the main pump displacement regulator are arranged on the outlet of a main pump, the revolution speed sensor is arranged on an engine, and the loading calculation module is arranged in the main controller; the pressure sensor, the revolution speed sensor and the main pump displacement regulator are respectively connected with the main controller and output engine revolution speed, throttle position and main pump displacement after being calculated by the loading calculation module to respectively control an actuating mechanism. The method is as follows: low load is a positive flow control mode; high load: a. when engine revolution speed is more than or equal to no-load speed* (1-7%), controlling by a constant power mode; and b. when the engine revolution speed is less than no-load speed* (1-7%), controlling by a limiting power mode. The invention controls by constant power comprehensive limiting power, gives consideration to the power output of a dynamic system on the premise of ensuring excavating force, dynamically adjusts the matching between the practical power of a hydraulic system and requirements, lowers power loss and reduces oil loss.

The invention relates to a log acquisition device and a log acquisition method. The device comprises at least one client for collecting logs and at least one server for recording the logs, wherein log information is transmitted between the client and the server through a network in real time. The method comprises that: the client generates the log information, writes the log information into a disk file of the client, reads the log information from the disk file of the client, and sends a connection request to the server; after receiving the request, the server establishes network connection with the client and receives the log information; the server sends the received log information to a server log writing module and a server log writing database module; the server log writing module writes the log information into the disk file of the server; and the server log writing database module writes the log information into the database. When the device and the method of the invention are used, the data analysis is more real-time, and the distributed acquisition of the logs is realized.

The invention discloses a visual word bag feature weighting method and system based on classification drive. The method comprises the steps that images are downloaded from the Internet, and an image database is established; the visual word bag features of all N images in the image database are extracted; the reverse index of the visual word bag features of all N images is established; N1 images and corresponding visual word bag features are extracted randomly from the image database; the N1 images are made to form C visual classes through a clustering algorithm; images are chosen randomly from each visual class to form a study sample set of the visual class; a weighting study sample set of the visual word bag features is established on the study sample set of the visual class for each visual class; the weighting study sample sets are used for training the visual classes to form supporting vector machine judging modules of the visual classes. The visual word bag feature weighting method and system based on classification drive can solve the technical problems that index precision is low, and the difference among different searching images can not be excavated in an existing method.

The invention provides a method and a device for ciphering and deciphering data in a management system. The method includes the steps: generating a public key and a private key of an RSA algorithm according to login passwords of a user when the user login management system uploads data; ciphering a secret key randomly generated by the management system by the RSA algorithm according to the public key to generate a secret key ciphertext, ciphering the data uploaded by the user according to the secret key ciphertext by a reversible algorithm and storing the ciphered data when the user login management system uploads the data, and deciphering the secret key ciphertext according to the private key by the RSA algorithm to obtain the secret key when the user login management system downloads the ciphered data; deciphering the ciphered data according to the deciphered secret key by the reversible algorithm; downloading the data after obtaining the deciphered data. By the method and the device, data ciphering security can be improved, support of a client is not needed in the data ciphering process, and the user can cipher and decipher the data without redundant operations.

The invention provides a servo positioning control system which comprises a position ring control unit, a position instruction receiving unit, an instruction residue calculation unit and an interpolation displacement calculation unit. The position instruction receiving unit is used for receiving position instructions from an upper computer according to the communication cycle T, the instruction residue calculation unit is used for calculating the position instruction residues in the current communication cycle in an iterative mode according to the position instructions received from the upper computer, the interpolation displacement calculation unit is used for calculating the interpolation displacement value, produced each time when the cycle is scheduled, in the current communication cycle according to the position instructions and the instruction residues, and the position ring control unit outputs position ring scheduling instructions with the interpolation displacement values according to the scheduling cycle T0, wherein T is equal to the product of n and T0 and n is a positive integer. The invention further provides a corresponding method. By rescheduling the position instructions in each communication cycle, the step change of the position instructions is avoided, and the speed can be stably changed.

The invention relates to a double-stator synchronous phase modifier of a rotor energy storage type, and the synchronous phase modifier comprises a power electronic device and a phase modifier. The power electronic device includes an AC / DC converter and a DC / AC converter which is connected with the DC side of the AC / DC converter. The phase modifier includes stators and a rotor, and the stators include an outer stator and an inner stator. Switches are respectively connected between one end of the outer stator and one end of the inner stator and between the other end of the outer stator and the other end of the inner stator. One end of the outer stator and the AC side of the AC / DC converter are connected with a power grid, and one end of the inner stator is connected with the AC side of the DC / AC converter. The invention also relates to a control method for the double-stator synchronous phase modifier. The outer rotor connected with the power grid remains the synchronous with the power grid without affecting the conventional reactive power compensation and the normal operation of the phase modifier. When the frequency is constant at 50 Hz, the phase modifier performs the active powerconsumption for the grid, enlarges the application range, and facilitates the normal and stable operation of the phase modifier in the power grid.

The invention, which relates to the technical field of smart home, further discloses a smart home controller based on the Internet of Things. The smart home controller comprises a controller body anda housing. The housing sleeves the outside of the controller body. Four insertion rods are arranged outside the controller symmetrically; clamping slots corresponding to the insertion rods are formedin the housing symmetrically; and clamping mechanisms are connected inside the clamping slots in a sliding manner. Reset mechanisms sleeving the outsides of the clamping mechanism are fixedly connected to the outside of the housing. A heat dissipation mechanism attached to the controller body is fixedly connected to the inside of the housing; and ventilation mechanisms arranged between the two insertion rods at the same side are symmetrically arranged. With the smart home controller based on the Internet of Things, problems that the disassembly and assembly modes of connecting the smart home controller with the housing are tedious in the application process of smart home controller and the controller is easy to damage due to the poor heat dissipation effect of the housing are solved.

The invention designs a spatially-orthogonal all-optical modulation three-port device. A method comprises the steps that (1) a flame heating method is utilized to draw single-mode optical fibers, andthe manufactured micro-nano optical fibers are thin enough to make the ratio of evanescent waves high enough; (2) the micro-nano optical fibers are covered with graphene with a certain length; (3) themicro-nano optical fibers, two FC connectors and a lenticular lens are assembled for formation; (4) pump light and signal light are input to the three-port device; (5) according to a spectrum obtained by an output port of the three-port device, the modulated bandwidth, modulation depth and response time are measured. According to the device, the signal light is modulated by utilizing a spatial coupling mode, the spatially-orthogonal all-optical modulation three-port device is a novel three-port modulation device and has the advantages that the spectral width is extremely high, the output signal light is clean, the selectivity of the pump light is wide, the response speed is high, and the response time is not limited by the covering length of graphene, and the device can play an excellentrole in all-optical communication.

The invention relates to an asynchronous replication method based on zfs send. The asynchronous replication method comprises the following steps of: 1) executing a replication function, and starting a client; 2) switching initial messages between a local storage system and a remote backup system; 3) sending a breakpoint file by the client, which comprises the following steps of: establishing a thread group by the client; reading the thread group for reading snapshot contents and storing the contents in a high-speed cache; writing the thread group for generating a breakpoint file through snapshot contents stored in the high-speed cache and further writing the breakpoint file into a low-speed magnetic disk, and judging whether the occupied high-speed cache reaches a maximum value or not; sending the thread group for sending the breakpoint file in the high-speed cache to a server through a network interface; driving the thread groups through the messages, and forwarding the messages to a next thread for continuous processing after the job of a current stage is completed by the thread; and) receiving the breakpoint file by the server, and returning a replication result. Compared with the prior art, the asynchronous replication method has the advantages of high backup efficiency and the like, and data consistency is effectively ensured.

The invention relates to an ion migration tube in an ion migration spectrometer, in particular to an ion migration tube with an internal electric field of an ionization region being a non-uniform direct-current electric field. The internal electric field intensity of the ionization region is non-uniformly distributed along the direction from an ion source to the ion gate. By means of the forming mode of the direct-current electric field, the difference of movement speeds of ions in direct-current electric fields with different intensities can be fully utilized, sample ion flow generated in theion source is subjected to space concentration, the concentration of sample ions in front of the ion gate is increased, and detection sensitivity of the ion migration spectrometry is improved on thepremise that response speed ofthe ion migration spectrometry is not affected.

The invention relates to a spring buffer type pneumatic executing mechanism. The spring buffer type pneumatic executing mechanism comprises an existing conventional piston type pneumatic executing mechanism, wherein the piston type pneumatic executing mechanism comprises a cylinder block, an upper cylinder cover, a lower cylinder cover and a piston. The spring buffer type pneumatic executing mechanism is characterized in that a plurality of upper spring buffer units which are uniformly distributed along the circumferential direction are arranged on the inner plane of the upper cylinder cover; the upper spring buffer units are matched with the upper surface of the piston, and are used for buffering the upward action of the pneumatic executing mechanism; a plurality of lower spring buffer units which are uniformly distributed along the circumferential direction are arranged on the inner plane of the lower cylinder cover; the lower spring buffer units are matched with the lower surface of the piston, and are used for buffering the downward action of the pneumatic executing mechanism. The spring buffer type pneumatic executing mechanism is skillful in structure, is reasonable in design, can be applied to the occasion of rapid and frequent actions, is accurately controllable in buffer stroke, has a small buffer stroke, and does not influence the response speed of the pneumatic executing mechanism; the pneumatic executing mechanism has a spring buffer function at the starting point and end point of the stroke.

The invention discloses an InGaAs detector chip and a preparation method thereof. The InGaAs detector chip sequentially comprises a substrate, an N-type semiconductor layer, an absorption layer and aP-type semiconductor layer. The N-type semiconductor layer is an n+ doped InP layer, the P-type semiconductor layer is a p+ doped InP layer, the absorption layer comprises a p+ doped P-type InGaAs absorption layer and an n+ doped N-type InGaAs absorption layer, and the P-type InGaAs absorption layer is adjacent to the P-type semiconductor layer. The N-type InGaAs absorption layer is adjacent to the N-type semiconductor layer, the thickness of the P-type InGaAs absorption layer is smaller than that of the N-type InGaAs absorption layer, and the doping concentration of the P-type InGaAs absorption layer is greater than that of the N-type InGaAs absorption layer. By optimizing the thicknesses and doping of the absorption layers, the high-low doped two-layer InGaAs absorption layers is adopted, the junction capacitance of a PN junction can be increased, the anti-static capability of the detector chip is greatly improved, and the reliability of the chip is ensured.

The invention discloses a novel one-way valve buffer structure, and belongs to the technical field of hydraulic valves. The lower end of a valve element hole of a valve body is an oil port P, and the upper end of the valve body valve element hole is a spring cavity; a screw plug is arranged at the end of the spring cavity, a valve element is arranged in the spring cavity in a sliding mode, and a spring is arranged between the valve element and the screw plug; the lower end of the valve element abuts against the inner wall of the valve element hole of the valve body in a matched mode; an axial conical oil channel is formed in the circumferential face of the lower end of the valve element, the sectional area of the conical oil channel is gradually reduced from top to bottom, and the upper portion of the conical oil channel communicates with the spring cavity through an oil through hole; an oil port A is formed in one side of the valve body and communicates with the valve element hole of the valve body, and the conical oil channel is opposite to the oil port A in the radial direction of the valve element hole of the valve body. An oil way is simple and compact in structure, easy to machine and operate and high in practicability, the impact force of opening of the one-way valve on the screw plug is reduced, the risk of oil leakage at the screw plug is eradicated, and the response speed of the one-way valve is not affected.

The invention discloses a damping valve. The damping valve comprises a valve body, a valve core, a spring and a thread sleeve; the lower part of the valve body is provided with an opening A, the upperpart of the thread sleeve is provided with an opening B, and the thread sleeve is in fixed threaded connection with the valve body; the valve core and the spring are arranged in an inner cavity of the thread sleeve, the upper end of the spring abuts against a ladder-shaped place of the inner cavity of the thread sleeve, and the lower end of the spring abuts against the valve core, so that the lower end of the valve core keeps a trend of extending into the opening A, and the lower end of the valve core is in clearance fit with the opening A of the valve body; when oil liquid flows from the opening A to the opening B, the lower end of the valve core can gradually move upwards to reduce the length of clearance fit of the lower end of the valve core and the opening A of the valve body, and the oil liquid in the opening A flows into the opening B through a clearance between the valve core and the opening A of the valve body; and when the oil liquid flows from the opening B into the openingA, the lower end of the valve core completely extends into the opening A, and the oil liquid flows from the opening B into the opening A through the clearance between the valve core and the opening Aof the valve body. The damping valve is simple in machining and can effectively buffer load-sensitive pressure fluctuation.

The invention discloses an InGaAs detector chip and a preparation method thereof. The InGaAs detector chip sequentially includes a substrate, an N-type semiconductor layer, an absorption layer, and a P-type semiconductor layer, and the N-type semiconductor layer is n+ doped The P-type semiconductor layer is a p+-doped InP layer, and the absorber layer includes a p+-doped P-type InGaAs absorber layer and an n+-doped N-type InGaAs absorber layer, and the P-type InGaAs absorber layer is in phase with the P-type semiconductor layer Adjacent, the N-type InGaAs absorbing layer is adjacent to the N-type semiconductor layer, the thickness of the P-type InGaAs absorbing layer is smaller than the thickness of the N-type InGaAs absorbing layer, and the doping concentration of the P-type InGaAs absorbing layer is greater than that of the N-type InGaAs absorbing layer. impurity concentration. The present invention optimizes the thickness and doping of the absorbing layer, adopts two layers of InGaAs absorbing layer with high and low doping, can increase the junction capacitance of the PN junction, and greatly improves the resistance of the detector chip without affecting the response speed of the chip. Electrostatic capability ensures the reliability of the chip.

The invention provides an SOC (system on a chip) achieving quick start-up and a realization method of the SOC. The SOC achieving the quick start-up comprises a CPU (central processing unit) and a cache, wherein the CPU is connected with an external memory by the cache; the CPU and the cache are connected with a power path controller; the CPU reads program instructions required for the start-up into the cache from the external memory during shutdown; and during second start-up, after the CPU is reset, the CPU reads the program instructions required for the start-up in the cache. According to the SOC and the realization method, since start-up programs are stored in the cache during the shutdown, the most consumed time, namely external memory handling time, is saved during the second start-up, and the start-up can be accelerated greatly.

The invention discloses a method and a system for online display of mass data. The method comprises the following steps that a server creates a base map service and a thematic map service; a client calls the base map service and the thematic map service; the base map service of the server generates a base map picture; the thematic map service generates a thematic map picture; and the client acquires the base map picture and the thematic map picture from the server, and superimposes the thematic map picture onto the base map picture for display. The system comprises the client and the server, wherein the client is connected with the server, and used for calling the base map service and the thematic map service of the server, and superimposing the thematic map picture acquired from the server onto the base map picture for display, and the server is used for creating the base map service and the thematic map service, and generating the base map picture based on the base map service, and the thematic map picture based on the thematic map service. According to the method and the system for the online display of the mass data, a large amount of point, line and surface data can be displayed on a browser on the premise that a running speed is not influenced.

The invention discloses a compensation control circuit and a compensation control method for a switch-type regulator and the switch-type regulator, and the compensation control circuit comprises the steps: detecting the conduction time information of a switch control signal of a switch tube, so as to achieve the compensation of the switch tube under the condition that the conduction time ratio meets a threshold value; the slope compensation signal is superposed at the rising stage of the inductive current or the slope compensation signal is superposed at the falling stage of the inductive current, so that the influence of noise on the system is reduced under the condition that the response speed of the system is not influenced when the conduction time is relatively long in the whole switching period, and the switching type regulator system which is high in response speed and good in stability is obtained.

The invention provides a method and a device for ciphering and deciphering data in a management system. The method includes the steps: generating a public key and a private key of an RSA algorithm according to login passwords of a user when the user login management system uploads data; ciphering a secret key randomly generated by the management system by the RSA algorithm according to the public key to generate a secret key ciphertext, ciphering the data uploaded by the user according to the secret key ciphertext by a reversible algorithm and storing the ciphered data when the user login management system uploads the data, and deciphering the secret key ciphertext according to the private key by the RSA algorithm to obtain the secret key when the user login management system downloads the ciphered data; deciphering the ciphered data according to the deciphered secret key by the reversible algorithm; downloading the data after obtaining the deciphered data. By the method and the device, data ciphering security can be improved, support of a client is not needed in the data ciphering process, and the user can cipher and decipher the data without redundant operations.

The invention relates to an asynchronous replication method based on zfs send. The asynchronous replication method comprises the following steps of: 1) executing a replication function, and starting a client; 2) switching initial messages between a local storage system and a remote backup system; 3) sending a breakpoint file by the client, which comprises the following steps of: establishing a thread group by the client; reading the thread group for reading snapshot contents and storing the contents in a high-speed cache; writing the thread group for generating a breakpoint file through snapshot contents stored in the high-speed cache and further writing the breakpoint file into a low-speed magnetic disk, and judging whether the occupied high-speed cache reaches a maximum value or not; sending the thread group for sending the breakpoint file in the high-speed cache to a server through a network interface; driving the thread groups through the messages, and forwarding the messages to a next thread for continuous processing after the job of a current stage is completed by the thread; and) receiving the breakpoint file by the server, and returning a replication result. Compared with the prior art, the asynchronous replication method has the advantages of high backup efficiency and the like, and data consistency is effectively ensured.

The invention provides a communication system for an automobile air-conditioning controller and external equipment. The communication system comprises a serial communication interface circuit and a communication protocol of the air-conditioning controller and a CD player, wherein the interface circuit takes an optical coupler as the core, achieves isolation between an internal power supply and a port, also achieves the conversion between 5V and 12V levels, and has stable output and strong driving capability; the resistance current limiting technology is adopted to ensure that during normal operation of an IC (Integrated Circuit), the interface circuit can not be overburnt when short circuit occurs between the communication port and the 12V power supply, as well as between the communication port and the ground, and the current of the interface circuit is within the normal bearing range of the IC, so that the requirement of automobile self-protection function is satisfied, the formal definition of data transmission is simple and reliable, and the transmitting and receiving methods are reasonable; and as data checkout is added in the transmission process, accuracy of data transmission is ensured.

The invention provides a two-way pressure-compensated valve. The two-way pressure-compensated valve comprises a valve bush, a valve core, a thread sleeve, a spring and a damping valve assembly. The valve bush is provided with a port A, a port B and a port L. The valve core is arranged in the valve bush, a first flowing channel is formed in one end of the valve core, and the first flowing channel communicates with the port B. The thread sleeve is connected to the end, close to the first flowing channel, of the valve bush. The spring is located in an inner cavity of the thread sleeve, the lowerportion of the spring is connected to the upper end of the valve bush through a first gasket in a pressing mode, and the other end of the spring abuts against the valve core through a second gasket and a stop ring. The damping valve assembly is fixedly connected to the lower end of the valve bush, and a load feedback cavity is formed above the damping valve assembly. A first damping channel and asecond damping channel connected with the load feedback cavity and the port L are formed in the damping valve assembly, and damping of the second damping channel is higher than that of the first damping channel. The situation that the damping magnitude of oil fluid flowing in and out of the load feedback cavity is different is achieved through the damping valve assembly, thus influences of loadingpressure punctuation on the ports of the valve core are buffered, and rapid response is achieved. The two-way pressure-compensated valve is compact in structure, and can effectively buffer load feedback pressure punctuation while not affecting the response speed.

The invention belongs to the technical field of protection installation, and particularly relates to a smart home controller based on the Internet of Things. The smart home controller comprises a controller, a trip valve is rotatably connected to the interior of the controller, a connecting through groove is fixedly formed in the upper end of the controller, a fixed sleeving groove is fixedly formed in the bottom of the controller, the controller is fixedly connected with a fixing piece through the connecting through groove and the fixing sleeving groove, and the rear end face of the fixing piece is fixedly connected with a reinforcing piece. The fixing piece is fixed to the upper end and the lower end of the controller, so that the fixing pieces can integrally fix the controller, the controller is more stable during installation, the controller and the fixing piece can be stably fixed, and meanwhile the reinforcing piece is fixedly connected to the outer portion of the fixing piece, so that the fixing piece is fixedly connected with an external control box through a fixing bolt hole in the reinforcing piece, the stability of internal installation of the controller and the controlbox is improved, and the overall installation stability of the controller is improved.

This application provides a method for processing SDN packets based on user policies. The method for processing SDN packets based on user policies includes: generating a default flow table according to a user policy configuration file, the default flow table including a plurality of flow entries respectively corresponding to different priorities; between the SDN device and the SDN controller Establish a message transmission channel between; according to the relevant flow entry of the default flow table, transmit the high-priority user message to the SDN controller through the message transmission channel, and transmit the low-priority user message to the SDN controller The text is discarded directly. The present application provides an SDN device and an SDN system adopting the above SDN packet processing method.

The invention relates to a multidirectional adjusting sliding table which comprises a bearing plate, a bottom plate, a middle plate, a top plate, a movable plate and an angle adjusting mechanism which are arranged in a stacked mode. The bottom plate is rotationally matched with the bearing plate; a first guide mechanism is arranged between the bottom plate and the middle plate, so that the middle plate and the bottom plate relatively slide along the first guide mechanism in a first direction; a second guide mechanism is arranged between the middle plate and the top plate, the top plate and the middle plate relatively slide along the second guide mechanism in a second direction, and the first direction is different from the second direction; the movable plate and the top plate are spaced and movably connected; and the angle adjusting mechanism adjusts the included angle of the movable plate relative to the top plate. The multidirectional adjusting sliding table can achieve rotation adjustment, multi-direction lateral sliding position adjustment and inclination angle adjustment, provides precise and multi-axial adjustment possibility for optical instrument production, flexibly solves the multi-axis adjustment problem of optical production, optimizes the space size and quality, can be installed on a high-precision Z-direction sliding table, and does not affect the movement precision and response speed of the sliding table.

The invention discloses a load sensing pressure filter valve. The load sensing pressure filter valve comprises a valve body and a first damping disk, a second damping disk, a steel ball, a spring anda thread sleeve that are arranged in the inner cavity of the valve body in sequence, wherein an opening A is formed in the lower part of the valve body; the first damping disk is arranged at the smallpore diameter position of the inner cavity of the valve body in a sliding manner; a first damping hole is formed in the first damping disk; a first valve opening and a second damping hole are formedin the second damping disk; an opening B is formed in the upper part of the thread sleeve; the steel ball and the spring are arranged in the inner cavity of the thread sleeve; the spring enables the steel ball to maintain a trend of blocking the first valve opening; when an oil liquid flows to the opening B from the opening A, the first damping disk slides upwards to block the second damping hole,and the oil liquid from the opening A flows into the opening B after flowing through the first damping hole and the first valve opening and pushing the steel ball away; and when the oil liquid flowsinto the opening A from the opening B, the first damping disk slides downwards, the oil liquid flows into the opening A from the opening B after flowing through the axial clearance among the second damping hole, the first damping disk and the second damping disk and the first damping hole. The load sensing pressure filter valve has the benefits as follows: the processing is simple, and the load sensing pressure fluctuation is effectively buffered.

The invention provides a two-way pressure-compensated valve. The two-way pressure-compensated valve comprises a valve bush, a valve core, a thread sleeve, a spring and a damping valve assembly. The valve bush is provided with a port A, a port B and a port L. The valve core is arranged in the valve bush, a first flowing channel is formed in one end of the valve core, and the first flowing channel communicates with the port B. The thread sleeve is connected to the end, close to the first flowing channel, of the valve bush. The spring is located in an inner cavity of the thread sleeve, the lowerportion of the spring is connected to the upper end of the valve bush through a first gasket in a pressing mode, and the other end of the spring abuts against the valve core through a second gasket and a stop ring. The damping valve assembly is fixedly connected to the lower end of the valve bush, and a load feedback cavity is formed above the damping valve assembly. A first damping channel and asecond damping channel connected with the load feedback cavity and the port L are formed in the damping valve assembly, and damping of the second damping channel is higher than that of the first damping channel. The situation that the damping magnitude of oil fluid flowing in and out of the load feedback cavity is different is achieved through the damping valve assembly, thus influences of loadingpressure punctuation on the ports of the valve core are buffered, and rapid response is achieved. The two-way pressure-compensated valve is compact in structure, and can effectively buffer load feedback pressure punctuation while not affecting the response speed.

The invention relates to a dual-stator synchronous condenser with rotor energy storage, including power electronic equipment and the condenser, the power electronic equipment includes an AC / DC converter, and a DC / AC converter connected to the DC side of the AC / DC converter. The converter and the condenser include a stator and a rotor. The stator includes an outer stator and an inner stator. A switch is connected between one end of the outer stator and one end of the inner stator, and between the other end of the outer stator and the other end of the inner stator. One end of the stator and the AC side of the AC / DC converter are connected to the grid, and one end of the inner stator is connected to the AC side of the DC / AC converter. The invention also relates to a control method of a double-stator synchronous condenser with rotor energy storage. The invention does not affect the conventional reactive power compensation function of the condenser itself, and the normal operation, the external stator connected to the power grid is kept in sync with the power grid, under the condition of constant 50Hz, it can also perform active power compensation to the power grid, expanding the scope of the power conditioner It is beneficial to the normal and stable work of the condenser in the power grid.