High-power wind power frequency active dynamic adaptive platform

By combining dynamic adaptive control and surge protection modules with advanced power conversion technology, the problem of unstable output of traditional wind power frequency converter platforms under unstable wind speed and surge power is solved, achieving efficient and reliable power conversion and heat dissipation.

CN122247157APending Publication Date: 2026-06-19CHENGDU HENGHE CONTROL SYST CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHENGDU HENGHE CONTROL SYST CO LTD
Filing Date
2026-05-14
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Traditional high-power wind power frequency converter platforms struggle to respond quickly and accurately to input power fluctuations caused by unstable wind speeds, resulting in unstable output power. Furthermore, they lack effective adaptive adjustment when facing surge power, impacting grid stability and equipment lifespan.

Method used

A dynamic adaptive control module is adopted, which combines a power sensor and a central controller to monitor changes in input power in real time and adjust conversion parameters through fuzzy control and neural network algorithms; a surge protection module and a heat dissipation module are set up to achieve adaptive control of multiple conversion modes and rapid suppression of surge effects, combined with advanced power conversion technology and soft switching technology.

Benefits of technology

It improves the stability of output power, protects internal electronic components, extends equipment life, reduces energy loss, reduces harmonic pollution, and achieves efficient and stable power conversion.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the technical field of power electronics, and in particular to a high-power wind power frequency converter active dynamic adaptive platform, comprising a power input module, a power conversion module, an active dynamic adaptive control module, a surge protection module, and a heat dissipation module. The power input module receives AC or DC input power from the wind turbine generator through an AC filter circuit and a DC voltage regulator circuit. For AC input, the AC filter circuit filters out harmonics and interference signals in the input AC power, and the AC filter circuit adopts a multi-stage LC filter structure. It achieves dynamic adaptive control of various conversion modes such as AC-AC, AC-DC, and DC-DC, effectively coping with input power fluctuations caused by unstable wind speeds, improving the stability of output power, achieving low-energy heat dissipation under normal temperature conditions, and high-power heat dissipation when the platform exceeds the set temperature, thus improving intelligent heat dissipation and reducing heat dissipation energy consumption.
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Description

Technical Field

[0001] This invention relates to the technical field of power electronics technology, and in particular to a high-power wind power frequency converter active dynamic adaptive platform. Background Technology

[0002] With the increasing global demand for clean energy, wind power, as an important renewable energy source, has been widely used and developed. In wind power systems, high-power power conversion is a key link that directly affects power generation efficiency and power quality.

[0003] Currently, traditional high-power wind power frequency converter platforms have many shortcomings in dealing with complex and ever-changing operating conditions. Due to the instability of wind speed, the input power will fluctuate frequently. Traditional frequency converter platforms are unable to respond to these changes quickly and accurately, resulting in unstable output power and affecting the stable operation of the power grid. When facing special operating conditions such as surge power, traditional platforms lack effective adaptive adjustment mechanisms, which can easily cause equipment damage and reduce the reliability and service life of the system.

[0004] Therefore, a high-power wind power frequency converter platform that can dynamically and adaptively adjust to achieve high efficiency and stability has significant practical implications.

[0005] Currently, among existing wind power frequency converters, such as the patent with announcement number CN111030118B, the invention discloses an island power transmission system and its control method, in which the island power transmission system can not only transmit different types of electrical energy to the first island platform.

[0006] During the use of existing system equipment, it was found that the existing system has poor compatibility and conversion efficiency in various conversion modes such as AC to AC, AC to DC, and DC to DC, which reduces the effectiveness of use. Summary of the Invention

[0007] To address the aforementioned technical problems, this invention provides a high-power wind power frequency converter active dynamic adaptive platform that enables dynamic adaptive control of multiple conversion modes such as AC-AC, AC-DC, and DC-DC, effectively copes with input power fluctuations caused by unstable wind speeds, improves output power stability, achieves low-energy heat dissipation under normal temperature conditions, and high-power heat dissipation when the platform exceeds the set temperature, thereby improving intelligent heat dissipation effect and reducing heat dissipation energy consumption.

[0008] The present invention provides a high-power wind power frequency converter active dynamic adaptive platform, comprising a power input module, a power conversion module, an active dynamic adaptive control module, a surge protection module, and a heat dissipation module; Power input module: It receives AC or DC input power from the wind turbine by setting up AC filter circuit and DC voltage regulator circuit. For AC input, the AC filter circuit is used to filter out harmonics and interference signals in the input AC power. The AC filter circuit adopts a multi-stage LC filter structure. For DC input, the DC voltage regulator circuit is used to ensure the stability of the input DC voltage. The DC voltage regulator circuit adopts switching power supply technology. The power conversion module includes an AC to AC conversion unit, an AC to DC conversion unit, and a DC to DC conversion unit; AC to AC conversion unit: It adopts a matrix converter structure and consists of multiple bidirectional switches. By controlling the opening and closing of the bidirectional switches, the frequency, phase and amplitude of the input AC power are converted, and the output AC power meets the requirements. AC to DC conversion unit: A three-phase full-bridge rectifier circuit is used to convert the input AC power to DC power. Active power factor correction technology is introduced into the rectifier circuit. By controlling the duty cycle of the switching transistor, the input current waveform tracks the input voltage waveform. DC-DC conversion unit: It adopts an isolated bidirectional DC-DC converter to realize DC voltage step-up and step-down conversion and bidirectional energy transmission. The converter adopts soft-switching technology and is equipped with output voltage and current feedback control loops. Active dynamic adaptive control module: It uses a power sensor to acquire power information, monitors the magnitude, frequency, and phase parameters of input and output power in real time, and transmits the detected signals to the central controller. According to the changes in input power, the central controller generates corresponding control signals according to the preset control algorithm to adjust the on and off times of each switch in the power conversion module, thereby realizing dynamic adaptive adjustment of the conversion process. Surge protection module: Surge protection circuits are set at the power input and output terminals. When a surge voltage or current occurs, the surge protection circuit can quickly conduct to discharge the surge energy to the ground and protect the electronic components inside the platform from damage. Heat dissipation module: Used to dissipate heat and cool down the various modules in the platform; The platform's internal temperature is monitored in real time by a temperature sensor. When the temperature is normal, it uses ambient airflow for heat dissipation and cooling. When the temperature exceeds a set threshold, it uses active heat dissipation and cooling.

[0009] Preferably, the central controller employs a high-performance digital signal processor with multiple PWM output channels, ADC acquisition channels, and communication interfaces. It analyzes and processes the signals transmitted by the power detection unit. Furthermore, the central controller stores fuzzy control algorithms and neural network control algorithms. Fuzzy processing fuzzifies the precise values ​​of the input power change and rate of change, defining them as different fuzzy sets. Based on expert experience and actual operating conditions, a fuzzy control rule base is established. The fuzzy values ​​output by the fuzzy control rules are defuzzified to obtain precise control signals, adjusting the on and off times of the switching transistors in the power conversion module. The neural network control algorithm uses a multi-layer feedforward neural network model, employing a backpropagation algorithm to train the neural network. By continuously adjusting the connection weights between neurons, the neural network output accurately tracks the desired control signal. By storing fuzzy control algorithms and neural network control algorithms, these algorithms automatically select the optimal control strategy based on different operating conditions and the characteristics of input power changes, ensuring stable operation of the platform under various complex conditions.

[0010] Preferably, the surge protection circuit is composed of a metal oxide varistor and a gas discharge tube element.

[0011] Preferably, the surge protection module is connected to the active dynamic adaptive control module. When a surge is detected, the module sends a signal to the central controller. The central controller further adjusts the working state of the power conversion module according to the intensity and duration of the surge, thereby enhancing the platform's surge resistance capability.

[0012] Preferably, the heat dissipation module includes a cooling device, a sealing device, a shell, a grille, a first air inlet hood, a fan, an air inlet box, a first partition, a second partition, and a heat exchange tube; The top of the housing has a heat dissipation vent, the bottom of the housing has an air inlet, and the housing contains a temperature sensor and a controller. The grating is installed inside the housing, and each module is installed on the grating. The first air intake shroud is connected and positioned at the bottom of the housing; The fan input end is connected to the air inlet box, and the fan output end is connected to the first air inlet hood; The first and second partitions are installed inside the air intake box, and the second partition divides the air intake box into a first chamber and a second chamber. The second chamber contains evaporative coolant. The heat exchange tubes are installed inside the second chamber, and two air inlets are provided on the side of the air inlet box. The first air inlet is connected to the first chamber, and the second air inlet is connected to the heat exchange tubes. The cooling device is connected to the second chamber and is used to cool the evaporative coolant. A sealing device is installed on the air inlet box to close and regulate the air inlet. By turning on the fan, air is drawn from the air inlet box, allowing outdoor air to flow through the box and into the housing. The housing cools down through airflow. A temperature sensor monitors the temperature inside the housing. When the temperature is normal, the sealing device closes the second air inlet, allowing outdoor air to enter the housing through the first chamber for cooling. When the temperature exceeds a set threshold, the sealing device closes the first air inlet and opens the second, allowing outdoor air to flow through the heat exchange tubes and enter the housing. The heat exchange tubes are cooled by the evaporative coolant in the second chamber, which in turn cools the air flowing inside. This allows low-temperature air to enter the housing for cooling, improving cooling efficiency, reliability, and the ability to apply different power levels for different temperatures, while reducing energy consumption.

[0013] Preferably, the cooling device includes a cooling assembly, a storage tank, a first conveying pipe, a second conveying pipe, a cylinder, a piston, a float, and a third conveying pipe; The storage tank is installed on the outer wall of the air intake box; The bottom end of the first delivery pipe is connected to the top end of the second chamber, and the upper part of the first delivery pipe is connected to the cooling component. The cooling assembly is connected to the top of the storage tank and is used to cool the evaporated coolant. The top end of the second conveying pipe is connected to the bottom end of the storage tank, and the bottom end of the second conveying pipe is connected to the cylinder body, which is installed on the outer wall of the air inlet box. The piston is installed inside the cylinder and slides up and down, and a through hole is provided in the middle of the piston; The float is installed at the bottom of the piston; The top end of the third delivery pipe is connected to the cylinder, and the bottom end of the third delivery pipe is connected to the second chamber. When the temperature of the evaporative coolant in the second chamber rises, the evaporative coolant evaporates upward through the first delivery pipe and enters the cooling assembly. The cooling assembly cools the evaporated evaporative coolant, causing it to condense and flow downward back into the storage tank. At the same time, the liquid level of the evaporative coolant in the second chamber decreases after evaporation. The buoyancy of the float decreases, causing the piston to slide downward. When the two sides of the piston's through-hole align with the positions of the second and third delivery pipes, the evaporative coolant stored in the storage tank flows into the second chamber through the second and third delivery pipes, thus achieving the convenience of automatic replenishment of the evaporative coolant in the second chamber and improving the reliability of cooling the heat exchange tubes.

[0014] Preferably, the cooling assembly includes a ventilation box, a fan, a heat exchange box, and a first fin; The ventilation box is installed on top of the storage tank; The fan is mounted on the outer wall of the ventilation box; The heat exchange box is installed inside the ventilation box, and the bottom of the heat exchange box is connected to the storage tank, while the output end of the first delivery pipe is connected to the heat exchange box. The first fin is installed on the outer wall of the heat exchange box; the storage tank transports the evaporated coolant to the inside of the heat exchange box, and the fan blows air on the heat exchange box and the first fin, so that the air flow cools the heat exchange box. The heat exchange box cools the internal coolant through heat conduction, causing it to condense. The condensed coolant flows back to the storage tank, realizing the circulation and cooling of the coolant.

[0015] Preferably, the sealing device includes a guide, a seal, a lead screw, and a motor; The guide components are installed on the outer wall of the air intake box; The seal is slidably mounted on the guide. The lead screw is rotatably mounted on the guide component, and the seal is screwed onto the lead screw. The motor is mounted on the outer wall of the guide member, and the motor output end is connected to the lead screw. The motor drives the lead screw to rotate, which in turn drives the seal to move its position, thereby allowing the seal to close and adjust the different air inlets of the air inlet box.

[0016] Preferably, it also includes a second air intake shroud and a filter screen; The second air intake cover is installed on the outside of the two air intake ports of the air intake box; The filter screen is installed on the second air intake hood; the air entering the air intake box is filtered through the filter screen, thereby improving the filtration and cleaning effect of the intake air.

[0017] Preferably, it also includes a second fin; The second fin is set on the outer wall of the heat exchange tube; by setting the second fin, the heat exchange efficiency between the heat exchange tube and the evaporative coolant is improved, and the air cooling effect inside the heat exchange tube is improved.

[0018] Compared with existing technologies, the beneficial effects of this invention are as follows: real-time monitoring of input power changes and automatic adjustment of conversion parameters according to a preset adaptive adjustment algorithm, realizing dynamic adaptive control of multiple conversion modes such as AC to AC, AC to DC, and DC to DC, effectively coping with input power fluctuations caused by unstable wind speed, improving the stability of output power; by setting up a surge protection module and working in conjunction with the active dynamic adaptive control module, the impact of surge voltage and current on the platform can be quickly and effectively suppressed, protecting internal electronic components from damage, improving system reliability and service life; by adopting advanced power conversion technology and soft switching technology, switching losses and energy losses are reduced, and power conversion efficiency is improved; at the same time, the application of active power factor correction technology improves the input power factor and reduces harmonic pollution to the power grid. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the system structure of the present invention; Figure 2 This is a schematic diagram showing the connection between the power input module and the power conversion module, etc. Figure 3 This is a schematic diagram of the power conversion module; Figure 4 This is an isometric structural diagram of the connection between the fan and the air intake box, etc. Figure 5 This is an isometric structural diagram showing the connection between the shell and the grating plate, etc. Figure 6 This is a partial isometric structural diagram of the connection between the air intake box and the second partition, etc. Figure 7 This is a partial isometric structural diagram of the connection between the storage tank and the ventilation box, etc. Figure 8 This is a partial isometric structural diagram of the connection between the heat exchange box and the first fin, etc. Figure 9 This is a partial isometric structural diagram of the connection between guide components and seals, etc. Figure 10 This is a partial isometric structural diagram of the connection between the storage tank and the heat exchange box, etc.

[0020] The following labels are used in the attached diagram: 101, shell; 102, grating plate; 103, first air inlet hood; 104, fan; 105, air inlet box; 106, first partition plate; 107, second partition plate; 108, heat exchange tube; 201, storage tank; 202, first conveying pipe; 203, second conveying pipe; 204, cylinder; 205, piston; 206, float; 207, third conveying pipe; 301, ventilation box; 302, fan; 303, heat exchange box; 304, first fin; 401, guide; 402, seal; 403, lead screw; 404, motor; 501, second air inlet hood; 502, filter screen; 601, second fin. Detailed Implementation

[0021] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. Example 1

[0022] like Figures 1 to 3 As shown, the present invention provides a high-power wind power frequency converter active dynamic adaptive platform, which includes a power input module, a power conversion module, an active dynamic adaptive control module, a surge protection module, and a heat dissipation module. Power input module: It receives AC or DC input power from the wind turbine by setting up AC filter circuit and DC voltage regulator circuit. For AC input, the AC filter circuit is used to filter out harmonics and interference signals in the input AC power. The AC filter circuit adopts a multi-stage LC filter structure. For DC input, the DC voltage regulator circuit is used to ensure the stability of the input DC voltage. The DC voltage regulator circuit adopts switching power supply technology. The power conversion module includes an AC to AC conversion unit, an AC to DC conversion unit, and a DC to DC conversion unit; AC to AC conversion unit: It adopts a matrix converter structure and consists of multiple bidirectional switches. By controlling the opening and closing of the bidirectional switches, the frequency, phase and amplitude of the input AC power are converted, and the output AC power meets the requirements. AC to DC conversion unit: A three-phase full-bridge rectifier circuit is used to convert the input AC power to DC power. Active power factor correction technology is introduced into the rectifier circuit. By controlling the duty cycle of the switching transistor, the input current waveform tracks the input voltage waveform. DC-DC conversion unit: It adopts an isolated bidirectional DC-DC converter to realize DC voltage step-up and step-down conversion and bidirectional energy transmission. The converter adopts soft-switching technology and is equipped with output voltage and current feedback control loops. Active dynamic adaptive control module: It uses a power sensor to acquire power information, monitors the magnitude, frequency, and phase parameters of input and output power in real time, and transmits the detected signals to the central controller. According to the changes in input power, the central controller generates corresponding control signals according to the preset control algorithm to adjust the on and off times of each switch in the power conversion module, thereby realizing dynamic adaptive adjustment of the conversion process. Surge protection module: Surge protection circuits are set at the power input and output terminals. When a surge voltage or current occurs, the surge protection circuit can quickly conduct to discharge the surge energy to the ground and protect the electronic components inside the platform from damage. Heat dissipation module: Used to dissipate heat and cool down the various modules in the platform; The platform's internal temperature is monitored in real time by a temperature sensor. When the temperature is normal, it uses ambient airflow for heat dissipation and cooling. When the temperature exceeds a set threshold, it uses active heat dissipation and cooling. The central controller employs a high-performance digital signal processor with multiple PWM output channels, ADC acquisition channels, and communication interfaces. It analyzes and processes the signals transmitted by the power detection unit. Furthermore, the central controller stores fuzzy control algorithms and neural network control algorithms. Fuzzy processing fuzzifies the precise amount of change and rate of change of input power, defining them as different fuzzy sets. Based on expert experience and actual operating conditions, a fuzzy control rule base is established. The fuzzy quantities output by the fuzzy control rules are defuzzified to obtain precise control signals, adjusting the on and off times of the switching transistors in the power conversion module. The neural network control algorithm uses a multi-layer feedforward neural network model and employs a backpropagation algorithm to train the neural network. By continuously adjusting the connection weights between neurons, the output of the neural network can accurately track the desired control signal. The surge protection circuit is composed of a metal oxide varistor and a gas discharge tube element. The surge protection module is connected to the active dynamic adaptive control module. When a surge is detected, it sends a signal to the central controller. The central controller further adjusts the working state of the power conversion module according to the intensity and duration of the surge, thereby enhancing the platform's surge resistance. In this embodiment, changes in input power are monitored in real time, and conversion parameters are automatically adjusted according to a preset adaptive adjustment algorithm. This enables dynamic adaptive control of various conversion modes, such as AC-AC, AC-DC, and DC-DC, effectively addressing input power fluctuations caused by unstable wind speeds and improving output power stability. By setting up a surge protection module that works in conjunction with the active dynamic adaptive control module, the impact of surge voltage and current on the platform can be quickly and effectively suppressed, protecting internal electronic components from damage and improving system reliability and lifespan. By adopting advanced power conversion technology and soft-switching technology, switching losses and energy losses are reduced, improving power conversion efficiency. At the same time, the application of active power factor correction technology improves the input power factor and reduces harmonic pollution to the power grid. Example 2

[0023] Based on Example 1, the present invention provides a high-power wind power frequency converter active dynamic adaptive platform, such as... Figures 4 to 10 As shown, the heat dissipation module includes a cooling device, a sealing device, a housing 101, a grille 102, a first air inlet hood 103, a fan 104, an air inlet box 105, a first partition 106, a second partition 107, and a heat exchange tube 108. A heat dissipation vent is provided at the top of the housing 101, an air inlet is provided at the bottom of the housing 101, and a temperature sensor and a controller are provided inside the housing 101; The grating plate 102 is installed inside the housing 101, and each module is installed on the grating plate 102; The first air intake shroud 103 is connected to the bottom end of the housing 101; The input end of the fan 104 is connected to the air inlet box 105, and the output end of the fan 104 is connected to the first air inlet shroud 103. The first partition 106 and the second partition 107 are respectively installed inside the air intake box 105. The second partition 107 divides the air intake box 105 into a first chamber and a second chamber. The second chamber is filled with evaporative coolant. The heat exchange tube 108 is installed inside the second chamber, and the side of the air inlet box 105 is provided with two air inlets. The first air inlet is connected to the first chamber, and the second air inlet is connected to the heat exchange tube 108. The cooling device is connected to the second chamber and is used to cool the evaporative coolant. A sealing device is installed on the air inlet box 105, and the sealing device is used to close and adjust the air inlet of the air inlet box 105. The cooling device includes a cooling assembly, a storage tank 201, a first conveying pipe 202, a second conveying pipe 203, a cylinder 204, a piston 205, a float 206, and a third conveying pipe 207. Storage tank 201 is installed on the outer wall of air inlet box 105; The bottom end of the first delivery pipe 202 is connected to the top end of the second chamber, and the upper part of the first delivery pipe 202 is connected to the cooling component. The cooling assembly is connected to the top of the storage tank 201 and is used to cool the evaporated coolant. The top end of the second conveying pipe 203 is connected to the bottom end of the storage tank 201, and the bottom end of the second conveying pipe 203 is connected to the cylinder 204. The cylinder 204 is installed on the outer wall of the air inlet box 105. The piston 205 is slidably installed inside the cylinder 204, and a through hole is provided in the middle of the piston 205; Float 206 is installed at the bottom of piston 205; The top end of the third conveying pipe 207 is connected to the cylinder 204, and the bottom end of the third conveying pipe 207 is connected to the second chamber. The cooling assembly includes a ventilation box 301, a fan 302, a heat exchange box 303, and a first fin 304; Ventilation box 301 is installed on top of storage tank 201; Fan 302 is mounted on the outer wall of ventilation box 301; The heat exchange box 303 is installed inside the ventilation box 301, and the bottom end of the heat exchange box 303 is connected to the storage tank 201. The output end of the first delivery pipe 202 is connected to the heat exchange box 303. The first fin 304 is installed on the outer wall of the heat exchange box 303; The sealing device includes a guide 401, a seal 402, a lead screw 403, and a motor 404; Guide component 401 is installed on the outer wall of the air intake box 105; Seal 402 is slidably mounted on guide 401; The lead screw 403 is rotatably mounted on the guide 401, and the seal 402 is screwed onto the lead screw 403. Motor 404 is mounted on the outer wall of guide 401, and the output end of motor 404 is connected to lead screw 403; It also includes a second air intake shroud 501 and a filter screen 502; The second air intake cover 501 is installed on the outside of the two air intake ports of the air intake box 105; Filter 502 is installed on the second air intake shroud 501; It also includes the second fin 601; The second fin 601 is disposed on the outer wall of the heat exchange tube 108; In this embodiment, by turning on the fan 104, air is drawn from the air intake box 105, causing outdoor air to flow through the air intake box 105 and be delivered to the housing 101. The housing 101 cools down using airflow. A temperature sensor monitors the temperature inside the housing 101. When the temperature inside the housing 101 is normal, the sealing device closes the second air intake. At this time, outdoor air enters the housing 101 through the first chamber for cooling. When the temperature inside the housing 101 exceeds a set threshold, the sealing device... The first air inlet is closed while the second air inlet is opened. Outdoor air flows through the heat exchange tube 108 and enters the casing 101. The evaporative coolant in the second chamber cools the heat exchange tube 108, thus cooling the air flowing inside. This allows the low-temperature air to enter the casing 101 for cooling, improving the heat dissipation efficiency and reliability within the casing 101. It also enhances the ability to apply different power levels for cooling at different temperatures, reducing energy consumption. When the temperature of the evaporative coolant in the second chamber rises, the evaporative coolant... The coolant evaporates upwards through the first delivery pipe 202 and enters the cooling assembly. The cooling assembly cools the evaporated coolant, causing it to condense and flow downwards back into the storage tank 201. Simultaneously, the coolant level in the second chamber decreases after evaporation, causing the float 206 to drop due to buoyancy, which drives the piston 205 to slide downwards. When the two sides of the through-hole of the piston 205 align with the positions of the second delivery pipe 203 and the third delivery pipe 207, the evaporated coolant stored in the storage tank 201 flows through the second delivery pipe 203 and the third delivery pipe 207. 7. The evaporating coolant flows into the second chamber, thus enabling the automatic replenishment of the evaporating coolant in the second chamber and improving the reliability of cooling the heat exchange tube 108. The storage tank 201 transports the evaporated evaporating coolant to the heat exchange box 303. The fan 302 blows air onto the heat exchange box 303 and the first fin 304, thereby cooling the heat exchange box 303. The heat exchange box 303 cools the evaporating coolant inside through heat conduction, causing it to condense. The condensed evaporating coolant flows back into the storage tank 201, realizing the circulation and cooling of the evaporating coolant.

[0024] The main functions achieved by this invention are: 1. Real-time monitoring of input power changes and automatic adjustment of conversion parameters according to preset adaptive adjustment algorithm to achieve dynamic adaptive control of multiple conversion modes such as AC to AC, AC to DC, and DC to DC, effectively cope with input power fluctuations caused by unstable wind speed, and improve the stability of output power; 2. By setting up a surge protection module and working in conjunction with an active dynamic adaptive control module, the impact of surge voltage and current on the platform can be quickly and effectively suppressed, protecting internal electronic components from damage and improving the reliability and service life of the system. 3. Achieve low-energy heat dissipation under normal temperature conditions and high-power heat dissipation when the platform exceeds the set temperature, thereby improving the intelligent heat dissipation effect and reducing heat dissipation energy consumption.

[0025] The wind turbine 104, fan 302, and motor 404 of the high-power wind power frequency conversion active dynamic adaptive platform of the present invention are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0026] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A high-power wind power frequency converter active dynamic adaptive platform, characterized in that, It includes a power input module, a power conversion module, an active dynamic adaptive control module, a surge protection module, and a heat dissipation module; Power input module: It receives AC or DC input power from the wind turbine by setting up AC filter circuit and DC voltage regulator circuit. For AC input, the AC filter circuit is used to filter out harmonics and interference signals in the input AC power. The AC filter circuit adopts a multi-stage LC filter structure. For DC input, the DC voltage regulator circuit is used to ensure the stability of the input DC voltage. The DC voltage regulator circuit adopts switching power supply technology. The power conversion module includes an AC to AC conversion unit, an AC to DC conversion unit, and a DC to DC conversion unit; AC to AC conversion unit: It adopts a matrix converter structure and consists of multiple bidirectional switches. By controlling the opening and closing of the bidirectional switches, the frequency, phase and amplitude of the input AC power are converted, and the output AC power meets the requirements. AC to DC conversion unit: A three-phase full-bridge rectifier circuit is used to convert the input AC power to DC power. Active power factor correction technology is introduced into the rectifier circuit. By controlling the duty cycle of the switching transistor, the input current waveform tracks the input voltage waveform. DC-DC conversion unit: It adopts an isolated bidirectional DC-DC converter to realize DC voltage step-up and step-down conversion and bidirectional energy transmission. The converter adopts soft-switching technology and is equipped with output voltage and current feedback control loops. Active dynamic adaptive control module: It uses a power sensor to acquire power information, monitors the magnitude, frequency, and phase parameters of input and output power in real time, and transmits the detected signals to the central controller. According to the changes in input power, the central controller generates corresponding control signals according to the preset control algorithm to adjust the on and off times of each switch in the power conversion module, thereby realizing dynamic adaptive adjustment of the conversion process. Surge protection module: Surge protection circuits are set at the power input and output terminals. When a surge voltage or current occurs, the surge protection circuit can quickly conduct to discharge the surge energy to the ground and protect the electronic components inside the platform from damage. Heat dissipation module: Used to dissipate heat and cool down the various modules in the platform; The platform's internal temperature is monitored in real time by a temperature sensor. When the temperature is normal, it uses ambient airflow for heat dissipation and cooling. When the temperature exceeds a set threshold, it uses active heat dissipation and cooling.

2. The high-power wind power frequency converter active dynamic adaptive platform as described in claim 1, characterized in that, The central controller employs a high-performance digital signal processor with multiple PWM output channels, ADC acquisition channels, and communication interfaces. It analyzes and processes the signals transmitted by the power detection unit. Furthermore, the central controller stores fuzzy control algorithms and neural network control algorithms. Fuzzy processing fuzzifies the precise values ​​of the input power change and rate of change, defining them as different fuzzy sets. Based on expert experience and actual operating conditions, a fuzzy control rule base is established. The fuzzy values ​​output by the fuzzy control rules are defuzzified to obtain precise control signals, adjusting the on and off times of the switching transistors in the power conversion module. The neural network control algorithm uses a multi-layer feedforward neural network model, employing a backpropagation algorithm to train the neural network. By continuously adjusting the connection weights between neurons, the output of the neural network can accurately track the desired control signal.

3. The high-power wind power frequency converter active dynamic adaptive platform as described in claim 1, characterized in that, The surge protection circuit is composed of metal oxide varistors and gas discharge tube components.

4. The high-power wind power frequency converter active dynamic adaptive platform as described in claim 1, characterized in that, The surge protection module is connected to the active dynamic adaptive control module. When a surge is detected, it sends a signal to the central controller. The central controller further adjusts the working state of the power conversion module according to the intensity and duration of the surge, thereby enhancing the platform's surge resistance capability.

5. A high-power wind power frequency converter active dynamic adaptive platform as described in claim 1, characterized in that, The heat dissipation module includes a cooling device, a sealing device, a shell (101), a grille (102), a first air inlet hood (103), a fan (104), an air inlet box (105), a first partition (106), a second partition (107), and a heat exchange tube (108). A heat dissipation vent is provided at the top of the housing (101), an air inlet is provided at the bottom of the housing (101), and a temperature sensor and a controller are provided inside the housing (101). The grating plate (102) is installed inside the housing (101), and each module is installed on the grating plate (102); The first air intake shroud (103) is connected to the bottom end of the housing (101); The input end of the fan (104) is connected to the air inlet box (105), and the output end of the fan (104) is connected to the first air inlet hood (103); The first partition (106) and the second partition (107) are respectively installed inside the air intake box (105). The second partition (107) divides the air intake box (105) into a first chamber and a second chamber. The second chamber is filled with evaporative coolant. The heat exchange tube (108) is installed inside the second chamber, and the side of the air inlet box (105) is provided with two air inlets. The first air inlet is connected to the first chamber, and the second air inlet is connected to the heat exchange tube (108). The cooling device is connected to the second chamber and is used to cool the evaporative coolant. A sealing device is installed on the air inlet box (105) and is used to close and adjust the air inlet of the air inlet box (105).

6. The high-power wind power frequency converter active dynamic adaptive platform as described in claim 5, characterized in that, The cooling device includes a cooling assembly, a storage tank (201), a first conveying pipe (202), a second conveying pipe (203), a cylinder (204), a piston (205), a float (206), and a third conveying pipe (207). The storage tank (201) is installed on the outer wall of the air inlet box (105); The bottom end of the first delivery pipe (202) is connected to the top end of the second chamber, and the upper part of the first delivery pipe (202) is connected to the cooling assembly; The cooling assembly is connected to the top of the storage tank (201) and is used to cool the evaporated coolant. The top end of the second conveying pipe (203) is connected to the bottom end of the storage tank (201), and the bottom end of the second conveying pipe (203) is connected to the cylinder (204). The cylinder (204) is installed on the outer wall of the air inlet box (105). The piston (205) is slidably installed inside the cylinder (204), and a through hole is provided in the middle of the piston (205); The float (206) is installed at the bottom of the piston (205); The top end of the third conveying pipe (207) is connected to the cylinder (204), and the bottom end of the third conveying pipe (207) is connected to the second chamber.

7. A high-power wind power frequency converter active dynamic adaptive platform as described in claim 6, characterized in that, The cooling assembly includes a ventilation box (301), a fan (302), a heat exchange box (303), and a first fin (304). The ventilation box (301) is installed on top of the storage tank (201); The fan (302) is mounted on the outer wall of the ventilation box (301); The heat exchange box (303) is installed inside the ventilation box (301), and the bottom end of the heat exchange box (303) is connected to the storage tank (201), and the output end of the first delivery pipe (202) is connected to the heat exchange box (303); The first fin (304) is installed on the outer wall of the heat exchange box (303).

8. A high-power wind power frequency converter active dynamic adaptive platform as described in claim 5, characterized in that, The sealing device includes a guide (401), a seal (402), a lead screw (403), and a motor (404). The guide (401) is installed on the outer wall of the air intake box (105); The seal (402) is slidably mounted on the guide (401); The lead screw (403) is rotatably mounted on the guide (401), and the seal (402) is screwed onto the lead screw (403); The motor (404) is mounted on the outer wall of the guide (401), and the output end of the motor (404) is connected to the lead screw (403).

9. A high-power wind power frequency converter active dynamic adaptive platform as described in claim 5, characterized in that, It also includes a second air intake hood (501) and a filter (502); The second air intake cover (501) is installed on the outside of the two air intake ports of the air intake box (105); The filter (502) is located on the second air intake shroud (501).

10. A high-power wind power frequency converter active dynamic adaptive platform as described in claim 5, characterized in that, It also includes a second fin (601); The second fin (601) is disposed on the outer wall of the heat exchange tube (108).