32results about How to "Improve frequency stability" patented technology

The invention discloses a double-frequency constant-temperature crystal oscillator and a manufacturing method thereof, and relates to the technical field of crystal oscillators, and the double-frequency constant-temperature crystal oscillator comprises a ceramic base and a ceramic bottom plate which are integrally formed by adopting an LTCC (Low Temperature Co-Fired Ceramic) process; the high-frequency quartz crystal and the low-frequency quartz crystal are respectively arranged in independent closed cavities, and unified heating and accurate temperature control are realized through the high-heat-conduction diamond copper substrate, the metalized heat conduction holes and the partitioned temperature sensing chips; the two paths of signals are output through independent interconnection paths, and the crosstalk is lower than-50dBm. According to the invention, the dual-frequency high-stability low-noise output is realized under the similar volume, and the requirements of a flight control system on a high-integration-level and high-reliability frequency source are met.

The invention discloses a method, system, equipment and medium for an expansion generator set to actively support the inertia of a power grid, and belongs to the technical field of compressed air energy storage, and the method comprises the steps: collecting voltage and current signals of the power grid in real time, calculating the frequency value of the power grid from the collected signals, and obtaining the frequency data of the power grid; performing differential calculation on the obtained frequency data to obtain a frequency difference and a frequency change rate; calculating upper and lower limits of power grid rotational inertia and system adjustable rotational inertia resources in real time according to unit operation conditions in a regional power grid; according to the frequency difference and the frequency change rate, system rotational inertia margins under the maximum frequency difference condition and the maximum frequency change rate condition are calculated; and controlling the compressed air energy storage unit to perform active adjustment based on a calculation result. Inertia support is realized, the frequency fluctuation of the power grid can be quickly responded, the frequency stability of the regional power grid is enhanced, the acceptance capability of the regional power grid to renewable energy sources is improved, and safe and reliable operation of the power grid is ensured.

This application relates to the field of new energy technology, and in particular to a neural network-based frequency regulation method for compressed air energy storage. The method includes: acquiring the inlet mass flow rate of the compressor unit in the compressed air energy storage system, the frequency deviation of the power system, and the rate of change of the frequency deviation; determining whether the frequency deviation meets certain frequency regulation activation conditions of the compressed air energy storage system; when the frequency deviation meets the certain frequency regulation activation conditions, adjusting the output power of the compressed air energy storage system based on the inlet mass flow rate and a pre-trained neural network, and adjusting the frequency of the power system based on the adjusted output power until the frequency meets a preset frequency stability condition. This solves the technical problems in related technologies, such as the inability to fully utilize the intelligent processing capabilities of neural networks for multi-dimensional parameters, the inability to reflect the advantages of compressed air energy storage systems such as fast response speed and environmentally friendly high-quality transient frequency regulation power supply, and the low accuracy of active power control in compressed air energy storage systems.

This invention relates to a high-precision data acquisition, processing, and magnetic field drive system, mainly comprising a data acquisition module, a processing module, a magnetic field drive module, a power supply module, and a host computer. The data acquisition module converts external analog signals into digital signals and transmits them to the processing module. The processing module includes a processing unit, a high-stability temperature-controlled crystal oscillator, an external clock signal interface, a DDR chip, Flash memory, a high-speed connector, and a digital power supply module. This module performs digital processing such as filtering and phase-locked loop (PLL) on the signals. The host computer can communicate with the FPGA core processing module via both Ethernet and serial ports to control the bias, amplitude, and frequency of the signals generated by the magnetic field drive module, display the read-back online data, and generate real-time curves. This invention realizes a low-cost, high-precision NMR gyroscope magnetic field control system, achieving high-precision closed-loop control of the NMR gyroscope's magnetic field.

This invention discloses an optimized scheduling method for virtual power plants with multiple resource types, belonging to the field of virtual power plant technology. This method aims to solve the technical challenges of delayed scheduling response due to the strong volatility of distributed resource output, insufficient adaptability to multiple scenarios, and weak distribution network resilience under renewable energy access. The method establishes a multi-resource power adjustable range model based on real-time data, uses linear scaling and displacement algorithms to generate aggregated power domain boundaries, and adjusts the weights according to the different target types of the virtual power plant. It combines ridge regression conditional expectation correction and sub-Bruker optimization to construct a dynamic risk budget, optimizing generation plans and reserve capacity in the day-ahead phase. In the real-time phase, it responds in stages according to power deviation levels, triggering rapid energy storage compensation or emergency interruption of controllable loads. The model parameters are iteratively corrected through a closed-loop feedback mechanism. This method significantly improves the response accuracy and reliability of virtual power plants in frequency regulation, peak shaving, and self-balancing scenarios.

The invention discloses a cascade multi-level converter inertia support control method and device, and the method comprises the steps: building a mathematical model of a cascade multi-level converter, and calculating the capacitor voltage fluctuation components of sub-modules under different working conditions; the method comprises the following steps: detecting a frequency change rate in a power system frequency event, determining a cascaded multilevel converter sub-module capacitor voltage safety regulation domain according to sub-module capacitor voltage fluctuation components under different working conditions, and determining a sub-module capacitor voltage maximum regulation quantity; constructing a droop control link, and multiplying the frequency deviation of the power system by a droop coefficient to serve as a sub-module capacitor voltage change reference value; predicting the load variation of the power system by combining the inertia identification result of the power system, and solving the optimal droop coefficient by taking the condition that the capacitance voltage variation reference value of the sub-module is equal to the maximum capacitance voltage regulating variable of the sub-module as a constraint condition; through droop control, voltage control, current control and modulation links, the capacitor voltage of the cascaded multilevel converter sub-module is adjusted, and inertia support is provided for a power system. The device comprises a frequency change rate calculation module, a load prediction module, a droop control module, a voltage control module, a current control module and a modulation module. According to the cascade multi-level converter inertia support control method and device disclosed by the invention, capacitor voltage out-of-limit caused by capacitor voltage double frequency fluctuation during inertia support can be avoided, and the inertia support capability of the cascade multi-level converter is improved through optimal droop coefficient selection.

The invention provides a new energy unit transient stability optimization method and system based on active feed-forward, and belongs to the field of new energy power generation. The system includes a current command generator and a current controller. The method comprises the steps of collecting terminal voltage and current of a unit, calculating active power and detecting a transient fault; when a fault is detected, generating an active current instruction through active feed-forward control based on power grid voltage information obtained by an active power signal, a fault voltage amplitude signal and phase locking; meanwhile, a reactive current instruction is generated; a current reference instruction is synthesized, and a converter is driven through closed-loop control to provide power support. According to the method, an active feed-forward mechanism is introduced, so that the new energy unit can respond to the power shortage of the power grid in advance, active and reactive support is quickly provided, frequency drop and power oscillation in the transient process are effectively inhibited, and the transient stability of the power system under the access of high-proportion new energy is remarkably improved.

The invention discloses a displacement sensor based on electromagnetic induction and a displacement measuring method, the sensor comprises a sensing and signal generating unit, a signal conditioning and converting unit and a digital processing and resolving unit, the sensing and signal generating unit comprises a multi-path analog switch and an LC oscillating circuit, inductance elements in the LC oscillating circuits are composed of displacement sensitive elements, and the multi-channel analog switch is used for selectively connecting the displacement sensitive elements to the corresponding LC oscillating circuits. The signal conditioning and converting unit is used for shaping the oscillation signal into a digital pulse signal; and the digital processing and resolving unit can measure the frequency of the digital pulse signal by adopting an equal-precision frequency measurement method and resolve the displacement according to the change of a frequency value. According to the invention, stable output amplitude and high frequency stability are maintained in a wide frequency range, and the stability of signals is ensured; in addition, measurement errors of a traditional frequency measurement method at low frequency are eliminated, and high-precision measurement in a full-scale range is guaranteed.

The application relates to an active load response system based on low communication demand, wherein a central control module and a plurality of frequency modulation modules are connected through distributed control communication; the frequency modulation module comprises a data receiving and transmitting unit, a data processing and storage unit and an active load response adjusting unit; the data receiving and transmitting unit is used for obtaining operation data of the central control module, other frequency modulation modules and power loads; the data processing and storage unit is used for determining consumed power of the active load response adjusting unit according to the operation data obtained by the data receiving and transmitting unit and the operation state of the active load response adjusting unit; and the active load response adjusting unit is used for adjusting consumed electric energy of the load through a communication mode or a direct adjustment mode of load power voltage and frequency. The application solves the technical problems of a large number of devices, small capacity and wide distribution in the prior art, improves the technical performance of device clusters, and provides frequency support and adjustment for a power system.

This invention relates to the field of infrared spectroscopy measurement technology, and particularly to a method and system for generating high-precision reference light for a Fourier transform infrared (FTIR) spectrometer. The high-precision reference light generation system for a Fourier transform infrared spectrometer includes a DFB laser module, a frequency stabilization feedback control module, a current drive module, a temperature control module, and a reference signal generation module. This invention also provides a high-precision reference light generation system for a Fourier transform infrared spectrometer, which, based on the instrument's linear function frequency doubling technique, generates a high-precision reference signal with an arbitrarily variable reference frequency. This invention uses a DFB laser as the light source, possessing significant advantages such as no need for high-voltage drive, small size, compact structure for easy integration, full utilization of DFB semiconductor laser development, and low price. Furthermore, it effectively overcomes the problems of low frequency stability and low reference frequency of DFB lasers, and has good application value.

The invention discloses a high-coherence double-frequency fiber laser with physically separable frequency and a method, and belongs to the technical field of lasers. The laser comprises a common-path gain section; the clockwise resonant branch and the common-pass gain section form a clockwise optical resonant cavity; the anticlockwise resonant branch and the common-pass gain section form an anticlockwise optical resonant cavity; an independent and adjustable loss control unit exists in at least one of the clockwise resonance branch and the anticlockwise resonance branch and is used for controlling the loss of the resonant cavity by changing the loss of the branch, so that the clockwise and anticlockwise resonant cavities obtain unidirectional and bidirectional laser; and the single-frequency implementation unit is arranged in the common-pass gain section and / or the resonance branch and is used for implementing single-frequency selection. The problem that single frequency in small-frequency-difference double-frequency light is difficult to separate can be solved, high-coherence double-frequency light can be achieved, high-signal-to-noise-ratio beat frequency is generated, the full width at half maximum of the single-frequency light and the full width at half maximum of the beat frequency are narrow, and the device has structural flexibility and excellent output performance.

A power generation and injection lock-in combining system and adjustment method are disclosed, belonging to the field of radio frequency and microwave power technology. The power generation and injection lock-in combining system includes an external signal source, N power units, a power combining network, and a dynamic adjustment module. The external signal source is connected to the output terminals of the N power units, providing a unified reference signal and injecting the reference signal into each power unit. The power combining network is connected to the output terminals of the N power units, superimposing the output signals of the N power units into a single signal. One part of this signal is used as a high-power output, and the other part is sent to the dynamic adjustment module through a directional coupler. The dynamic adjustment module performs real-time detection of the output of the power combining network through the directional coupler and the outputs of the N power units through the directional coupler, and adjusts the power and phase of each power unit according to the real-time detected power and phase to ensure that the power and phase of each power unit are consistent.

The invention relates to an energy storage system parameter design method and device based on network construction multi-module cooperative control, a storage medium and equipment, and the method comprises the following steps: obtaining a control strategy of a lithium battery type energy storage device, and calculating the active frequency response characteristic of the lithium battery type energy storage device; designing the overall active frequency response characteristic of the system according to the frequency stability requirement of the power grid; according to the active frequency response characteristics of the lithium battery type energy storage device and the whole system, solving the active frequency response characteristics of the super capacitor type energy storage device; a function expression between the voltage of the super capacitor and the system frequency is established by combining the relation between the voltage of the super capacitor and the output power, and a control strategy of the super capacitor type energy storage device is obtained through backstepping; and calculating control parameters of the lithium battery type energy storage device and the super-capacitor type energy storage device according to the set system frequency track parameters. Compared with the prior art, the method has the advantages that the frequency stability of the weak-inertia power grid can be improved, and the like.

The present application relates to the technical field of cooperative control, and particularly relates to a kind of based on power response and distributed optimization's storage and filling cooperative control method and system.The method comprises the following steps: obtaining microgrid operation data;According to microgrid operation data, flexible load slice is carried out, and flexible load data is obtained;Flexible load data is evolved in heterogeneous communication timing, and heterogeneous communication data is obtained;According to heterogeneous communication data, virtual synchronous machine control is carried out, and synchronization compensation data is obtained;According to synchronization compensation data, cooperative optimization is carried out, and cooperative control data is obtained.The present application is jointly modeled by responding to the characteristics of flexible load and heterogeneous communication timing, and combined with virtual synchronous machine compensation mechanism and distributed cooperative optimization, realizes the time sequence coordination regulation between energy storage system and charging load, thereby effectively reduces the power over-compensation and control oscillation problem caused by equipment response difference, improves the power regulation stability and storage and filling cooperative control efficiency of microgrid in communication environment.

The application discloses a frequency adjustment method and device of an alternating current power grid, a storage medium and computer equipment. The method comprises the following steps: monitoring the power grid frequency of the alternating current power grid, determining the frequency fluctuation range of the power grid, and comparing the frequency fluctuation range with three preset fluctuation ranges; when the frequency fluctuation range exceeds the first preset fluctuation range and is less than the second preset fluctuation range, performing voltage outer loop current inner loop control of a full-power converter based on frequency feedback control, so as to adjust the active power output by the full-power converter and reduce the frequency fluctuation range of the alternating current power grid; and when the frequency fluctuation range exceeds the third preset fluctuation range, performing voltage outer loop current inner loop control of the full-power converter based on frequency feedback control and virtual voltage feedback control, so as to adjust the active power output by the full-power converter and reduce the power grid frequency fluctuation range of the alternating current power grid. The above method can improve the stability of the alternating current power grid.

The utility model belongs to the technical field of crystal oscillators, and particularly relates to a constant-temperature damping device of a crystal oscillator, which comprises a buffer tank and further comprises a tank cover detachably connected to the inner side of the top of the buffer tank; the buffer assembly is arranged around the inner wall of the buffer box; the storage assembly is arranged on the inner side of the buffer box, and the periphery of the storage assembly is filled with damping liquid; the oscillation host is arranged on the storage assembly; the cooling assembly is arranged at the bottom of the buffer tank; the spraying assembly is arranged on one side in the cooling assembly, and the water outlet end is arranged at the top of the air inlet end of the cooling assembly; according to the constant-temperature damping device of the crystal oscillator, the vibration host is damped and buffered through the electromagnet, the damping effect can be accurately controlled, high-frequency or sudden vibration can be rapidly responded, the stability of the oscillator is kept, the frequency stability and the long-term reliability are improved, and different from a traditional damping mode, the electromagnet is not affected by temperature changes, and the service life is prolonged. And moreover, the design is compact, and the adjustment is easy.

The application discloses a kind of dual-frequency constant temperature crystal oscillator and its manufacturing method, it is related to crystal oscillator technical field, it includes ceramic base and ceramic bottom plate, both are integrally formed using LTCC process;High-frequency quartz crystal and low-frequency quartz crystal are respectively placed in independent sealed cavity, and unified heating and precision temperature control are realized by high-thermal-conductivity diamond copper substrate, metallized heat-conducting hole and partition temperature sensing chip;Two-way signal is output through independent interconnection path, and crosstalk is lower than-50dBm.The application realizes dual-frequency high-stable low-noise output under similar volume, meets the demand of high-integration, high-reliability frequency source for flight control system.

The invention discloses a wind power plant energy storage virtual inertia control method and system based on fuzzy active disturbance rejection control. The method comprises the following steps: monitoring a power grid frequency deviation and a change rate thereof in real time; inputting the monitored data into a fuzzy active disturbance rejection controller; estimating the total disturbance of the system in real time by using an extended state observer; dynamically setting parameters of the extended state observer based on a fuzzy rule; virtual inertia response power which should be provided by the energy storage system is calculated according to the output of the extended state observer and nonlinear state error feedback; the virtual inertia response power serves as an additional active power reference instruction to be issued to the energy storage system; and the energy storage system executes the power reference instruction and provides frequency support for the power grid. According to the method, the energy storage system can quickly respond to the frequency change of the power grid, the lowest point of the frequency is effectively improved, the frequency fluctuation is inhibited, the operation stability of the system is ensured, and the method has the advantages of quick response, strong robustness and good adaptive capacity.

The invention discloses a frequency response model and method based on a physical information neural network, belongs to the technical field of power system frequency prediction, and takes a transfer function of the frequency response model as a loss function of the physical information neural network. Normalizing the frequency curve of each generator under different scenes and different disturbances, the inertia center frequency of the power system, the unbalanced active power and each coefficient of the frequency response model as training data; the output of the physical information neural network comprises various coefficients and unbalanced active power of a frequency response model transfer function. The output of the physical information neural network is substituted into the frequency response model containing unknown parameters, and the frequency change of the power system in various disturbance scenes can be quickly and accurately predicted, so that the frequency safety and stability of the complex power system are enhanced.

This invention relates to the field of power optimization technology, specifically disclosing a virtual power plant optimization operation method based on multi-energy coupling. The method includes: extracting the thermal damping characteristics of each target node in a building complex and calculating the energy repayment demand; simulating the power superposition effect of simultaneous startup of multiple nodes, verifying safety constraints by combining grid transformer capacity limitations and ramp rate, and extracting the rebound risk time window; analyzing the user's thermal comfort tolerance limit and energy repayment demand, and dividing the heterogeneous recovery echelons; performing time-series optimization on each echelon to determine the optimal start-stop time group; analyzing latent cooling potential energy in real time and performing conflict analysis with remaining sensible heat demand, and predictively intercepting and dynamically reducing oversaturated redundant nodes. This invention helps to smooth out the rebound peak during the load recovery period and utilizes building thermal inertia, ensuring both grid safety and user comfort.

The utility model discloses a three-phase program-controlled alternating current power source, which relates to the field of three-phase program-controlled alternating current power sources and comprises a digital DSP (digital signal processor) controller + large-scale FPGA (field programmable gate array) module, a three-phase alternating current power output module, a three-phase remembered sine wave generating circuit, a touch screen, a liquid crystal display module, a low-pass filter A, a low-pass filter B and a low-pass filter C, and the touch screen and the liquid crystal display module are connected with the digital DSP controller and the large-scale FPGA module. According to the utility model, the three-phase power source adopts a DSP + FPGA technology, a large-scale FPGA with powerful and flexible functions, an internal and external phase-locked closed-loop control technology, a high-speed and high-precision D / A and a high-fidelity power amplifier to form a new-generation high-precision standard power source, the frequency stability is high, the continuity is good, the precision of output voltage and current can reach 0.01 level, and a single-phase 0-380V, three-phase three-wire, high-precision and high-precision standard power source can be provided. And the three-phase four-wire alternating current voltage is 0-380V.

This invention relates to a flip-chip structure and underfill packaging method for miniaturized crystal oscillators. The structure includes a packaging substrate, a quartz crystal resonator, an oscillating IC chip, and a sealing cap. Both the resonator and the IC chip are flip-chip bonded to the substrate via conductive bumps, with the resonator bumps being higher than the IC chip bumps, forming a vibration gap. A low-modulus underfill adhesive layer is filled into the gap between the chip and the substrate to buffer stress and redistribute thermomechanical stress, ensuring the stability of the resonant frequency. The packaging method includes solder placement, chip mounting, reflow soldering, underfill adhesive injection and curing, and hermetically sealed packaging steps. This invention effectively suppresses frequency drift caused by temperature stress through the synergistic effect of the vibration gap design and the low-modulus adhesive layer, while achieving high integration, low electromagnetic interference, and high reliability in miniaturized crystal oscillator packaging through a fully flip-chip and sealed structure.

The application discloses a kind of thermal power unit electric power system primary frequency modulation load instruction control system and method, belong to the intelligent control technical field of thermal power unit.The application is by combining main steam pressure setting and DEH measured speed to participate in collaborative control, effectively shorten the frequency modulation instruction transmission and control response delay, realize frequency modulation advance fast action.Can fully release unit heat storage, quickly promote frequency modulation power output, can efficiently damp the frequency fluctuation of high frequency, large amplitude of power grid, avoid frequency sustained deviation out of limit.Effectively alleviate the contradiction between machine and furnace dynamic adjustment at the same time, on the premise of guaranteeing the operation safety of unit body, improve the response rate and regulation capacity of unit primary frequency modulation, enhance the stability of power grid frequency, reduce the risk of safe operation of power grid.

The invention belongs to the technical field of power systems, and relates to a new energy power system optimization method considering transient frequency security constraints. Comprising the following key steps: S1, constructing a power system frequency dynamic model, and determining a nonlinear expression of maximum frequency deviation constraint; s2, converting the nonlinear expression into a linear approximation form through variable replacement; s3, substituting the linear approximation obtained in the S2 into the original frequency lowest point constraint to obtain a second-order cone constraint SOC constraint form; and S4, integrating the second-order cone constraint into the frequency constraint optimization model, combining the second-order cone constraint with other constraints, and solving the target function by using a CPLEX commercial solver to obtain an optimization scheme. By implementing the method, on the premise that the complexity of the model is not increased, rapid solving of the frequency constraint optimization problem can be achieved, the frequency stability of the power system under large disturbance is improved, and the method is suitable for scenes such as power generation dispatching and standby planning.

The application discloses an intelligent feedback control system for compression depth frequency in a CPR process, and relates to the technical field of first-aid medical control systems.The system comprises a multimodal sensing integrated unit, an intelligent feedback control unit, a self-adaptive mechanical auxiliary unit, a remote data interaction unit and a dynamic calibration adaptation unit.The multimodal sensing integrated unit is used for integrating an accelerometer, a pressure sensor and an optical range finder, collecting compression depth, frequency and thoracic rebound data in real time, and sending the data to the intelligent feedback control unit.Through a multi-sensor fusion technology, the compression depth error is greatly reduced, and the frequency stability is significantly improved, so that the CPR quality is improved.The lightweight mechanical auxiliary design significantly reduces the cost of the device, facilitates popularization in public places, and thus improves the speed of first-aid response.In addition, the closed-loop optimization is realized in combination with physiological signals of a patient, an individualized CPR compression scheme is provided, and the treatment effect is improved.Furthermore, remote medical guidance and data sharing are supported.

The application discloses a kind of based on self-disturbance coordination gas turbine frequency control method, device, the method includes: real-time acquisition power grid frequency, calculates power grid frequency deviation and power grid frequency change rate;Power grid frequency deviation is input to frequency outer loop self-disturbance control unit;Power grid frequency change rate is input to inertia response enhancement link;Superimpose basic power regulation instruction, inertia response enhancement power instruction with steady-state reference power, generate comprehensive mechanical power reference instruction;Comprehensive mechanical power reference instruction is input to fuel flow inner loop self-disturbance control unit;According to fuel flow regulation instruction, adjust the fuel flow of gas turbine, so that the mechanical power output by gas turbine tracks comprehensive mechanical power reference instruction, realizes the fast support to power grid frequency.By the cooperation of frequency outer loop self-disturbance control, inertia response enhancement and fuel inner loop self-disturbance control, realize transient power active support, improve the frequency response speed of gas turbine grid-connected system.

The application provides a chip-level micro-heating structure MEMS resonator and a temperature control method thereof, and belongs to the technical field of temperature adjustment of resonators. The MEMS resonator comprises a package, a thermal isolation layer, a micro-heating layer, a heat-conducting metal, a resonant structure, a temperature sensor, an oxide layer, a connecting line and an ASIC chip; the oxide layer, the micro-heating layer, the oxide layer, the heat-conducting metal and the resonant structure are sequentially stacked above the thermal isolation layer; the temperature sensor is integrated at the edge of the resonant structure; the micro-heating layer contains a thermistor; the ASIC chip is integrated with a temperature comparator, a signal processing unit, a PID controller and a micro-heating circuit; the connecting line is used for connecting the ASIC chip with the temperature sensor and the thermistor; the package is used for wrapping all devices; and a temperature control method of the MEMS resonator is also disclosed. The frequency stability of the MENS resonator is improved, and the temperature drift can be controlled within 0.5ppm; and the application is suitable for high-precision clock sources, radio frequency filters and sensors and the like.

This invention belongs to the field of micromechanical resonator technology, and discloses a temperature-controlled micromechanical resonator and its temperature control method and preparation method. The resonator structure includes a micro-heating cavity and a resonant oscillator, and is symmetrical about the angle bisector of the crystal orientation of the resonant oscillator. This invention utilizes the difference in frequency offset-temperature curves of resonant oscillators with different crystal orientations to perform frequency temperature measurement, thereby achieving a higher precision temperature control function and improving the frequency stability of the resonator.

The invention discloses a gravity energy storage system of a wind power tower, a control method of the gravity energy storage system, equipment and a medium, and relates to the technical field of renewable energy source grid connection and mechanical energy storage. The system comprises a tower supporting structure, an energy storage mass module, a traction module, a winding drum-electro-mechanical conversion module, a power conversion and protection module and a monitoring and communication module. The energy storage mass module is suspended on a vertical axis in the tower drum supporting structure through the traction module and is connected with the winding drum-electromechanical conversion module through the traction module, and the winding drum-electromechanical conversion module is arranged at the top of the tower drum supporting structure; and a motor of the winding drum-electro-mechanical conversion module is connected with the traction module. Through the combination of a tower built-in gravity energy storage structure and a rapid control strategy, tower resonance and vibration can be suppressed, the frequency change rate of a power grid is reduced, and the operation stability and reliability of a wind turbine generator and a power system are improved.

The invention discloses a diesel-storage combined power supply system and a coordination control method thereof, and belongs to the technical field of power system control, and the method comprises the steps: obtaining operation state data, and determining the total load power; determining a working mode according to the total load power and a logic threshold value, and distributing the total load power into generator target power and energy storage target power; when the working mode is the energy storage independent power supply mode, a prime motor is stopped, and the output voltage is kept stable by adopting a voltage rotating speed control strategy; and when the working mode is the generator independent power supply mode or the diesel-storage combined power supply mode or the energy storage charging mode, a coordination control strategy is executed, and the output voltage is kept stable through coordination control of the first path and the second path. The problem of coupling of the power and the frequency of the induction generator is effectively solved, and the frequency stability and the dynamic impact resistance of the system are improved.