A distributed intelligent peak-shaving energy regulation system based on biomass

The distributed intelligent peak-shaving energy regulation system monitors the electricity load in real time and adjusts the biomass power generation capacity, solving the regulation problem of the biomass power generation system, improving grid stability and energy efficiency, and enhancing the dust and moisture protection capabilities of the device.

CN115912471BActive Publication Date: 2025-11-11ZHEJIANG UNIV CITY COLLEGE
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Patent Information

Application Number
CN202211470772.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-11-23
Publication Date
2025-11-11
Estimated Expiration
2042-11-23

AI Technical Summary

Technical Problem

Biomass power generation systems are difficult to flexibly control, leading to unstable grid load and energy waste, and the devices are not effective in preventing dust and moisture.

Method used

Design a distributed intelligent peak-shaving energy regulation system based on biomass, including a biomass power generation module, a power grid monitoring module, a data center, and an energy regulation device. By monitoring the power load in real time and generating power generation control commands, the system adjusts the power generation capacity of biomass gasification. Combined with dust and moisture prevention measures, it achieves peak-shaving matching between biomass gasification and the power grid.

Benefits of technology

It achieves peak-shaving matching between biomass gasification and the power grid, avoids sudden changes in grid load, saves energy, and improves the service life of the device and its dust and moisture protection effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention belongs to the field of energy regulation, specifically relating to a distributed intelligent peak-shaving energy regulation system based on biomass. The system includes a biomass power generation module comprising a downdraft fixed-bed gasifier and an internal combustion generator. The downdraft fixed-bed gasifier receives pre-treated raw materials and gasifies them. The resulting gas is purified and cooled through multi-stage water washing to meet the requirements of the internal combustion generator before being transported to the generator via a gas pipeline. The generator then produces the first current. A power grid monitoring module, installed on the main power supply line of the residential area, periodically collects and transmits load data and power grid parameter data from the main power supply line. This solution can adjust the biomass gasification power generation capacity of the biomass power generation module according to the electricity load, achieving peak-shaving matching between biomass gasification and the power grid. While ensuring sufficient electricity supply, it can also reduce power generation during off-peak hours to save energy.
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Description

Technical Field

[0001] This invention belongs to the field of energy regulation, specifically relating to a distributed intelligent peak-shaving energy regulation system based on biomass. Background Technology

[0002] Biomass power generation technology is a thermal power generation technology that uses biomass and its processed solid, liquid, and gaseous forms as fuel. The generators can be gas engines, Stirling engines, gas turbines, and steam turbines, depending on the type of fuel, temperature, and power output.

[0003] In biomass power generation, it is inconvenient to regulate the power output, and the generating equipment typically operates at its rated power. In this situation, incorrect timing and methods of intervention can negatively impact the power grid. Furthermore, there is the problem of excessive power generation during off-peak hours, resulting in energy waste. Summary of the Invention

[0004] The purpose of this invention is to provide a distributed intelligent peak-shaving energy regulation system based on biomass, which solves the problems of inconvenient regulation of power generation and insufficient dust and moisture protection of the device.

[0005] To achieve the above objectives, the present invention provides a distributed intelligent peak-shaving energy regulation system based on biomass, comprising:

[0006] The biomass power generation module includes a downdraft fixed-bed gasifier and an internal combustion generator. The downdraft fixed-bed gasifier is used to receive pre-treated raw materials and gasify them. The generated gas is purified and cooled by multi-stage water washing to meet the requirements of the internal combustion generator. Then, it is transported to the internal combustion generator through a gas transmission pipeline, and the internal combustion generator generates the first current.

[0007] The power grid monitoring module is installed on the main power supply line of the community to periodically collect and transmit load data and power grid parameter data on the main power supply line.

[0008] The data center is used to receive load data from the main power supply line, and based on the load data and the current time, to determine the peak and valley conditions of the current electricity consumption and generate power generation control commands.

[0009] An energy control device includes a controller, a feeding motor, and a screw feeding shaft. The feeding motor is fixed to the energy control device, and the screw feeding shaft passes through the side wall of the energy control device and is fixedly connected to the rotating shaft of the feeding motor. The screw feeding shaft can transport the pre-treated raw materials to the down-suction fixed bed gasifier. The controller is used to receive power generation control commands and control the rotation speed of the feeding motor according to the content of the power generation control commands.

[0010] The grid connection module is used to receive grid parameter data and to condition the first current into a second power supply current that can be input into the community grid and then transmit it to the community's main power supply line.

[0011] The data center's logic for generating power generation control commands is as follows: if the current load data is greater than the load data of the previous period, and the current time is within a preset peak time period, a power generation control command to increase the feeding speed is generated; if the current load data is less than the load data of the previous period, and the current time is within a preset peak time period, a power generation control command to maintain the feeding speed is generated; if the current time is not within a preset peak time period, and the increase in the current load data compared to the load data of the previous period does not exceed a preset value, a power generation control command to maintain the minimum speed is generated; if the current time is not within a preset peak time period, but the increase in the current load data compared to the load data of the previous period exceeds a preset value, a power generation control command to increase the feeding speed is generated.

[0012] The principle of this invention is as follows:

[0013] During system operation, the power consumption is monitored in real time by the power monitoring module. After judgment by the data center, the energy regulation device adjusts the biomass gasification power generation capacity of the biomass power generation module according to the power load, achieving peak-shaving matching between biomass gasification and the power grid. This ensures sufficient power supply while also conserving energy (raw materials) by reducing power generation capacity during off-peak hours. When power consumption gradually increases and falls within a preset peak period, the power generation capacity is gradually increased using the time delay characteristic of the biomass power generation module, avoiding the damage caused by sudden changes in grid load. After reaching the peak power consumption, although power consumption gradually decreases (but remains relatively high), the maximum power generation capacity is maintained to reduce the peak load. Further, as time progresses and power consumption decreases further, no longer falling within peak periods, the minimum power generation capacity is maintained. Although this power generation capacity change is abrupt from a control perspective, the time delay characteristic of the biomass power generation module's control (power generation capacity gradually decreases after reducing raw material supply) prevents a shock to the power grid and effectively reduces the supply of raw materials.

[0014] In this solution, during peak and off-peak electricity consumption periods, some users may need to recharge high-energy-consuming devices such as new energy vehicles. These devices typically have high power outputs (starting from 3kW, with 7kW being the norm; normal residential areas rarely experience sudden connections to such high-power devices; they are only used for recharging or when a large number of community lighting devices are turned on). To reduce energy consumption, this solution also increases power generation during off-peak periods if such situations occur, thus balancing peak-valley fluctuations.

[0015] The beneficial effects of this invention are as follows: The power consumption monitoring module allows for real-time monitoring of power consumption, and the biomass gasification power generation capacity of the biomass power generation module can be adjusted according to the power load, achieving peak-shaving matching between biomass gasification and the power grid, which greatly contributes to avoiding sudden changes in grid load. It also enables energy conservation by reducing power generation during off-peak hours while ensuring that high-power demand during off-peak hours can still be met, further improving adaptability to the power grid.

[0016] Furthermore, a base is fixedly mounted on the energy control device, and a connecting plate is slidably connected to the energy control device. A filter screen is installed on the connecting plate, and a connecting block is slidably connected inside the connecting plate. A locking block is fixedly connected to the connecting block, and the locking block engages with the connecting plate. A connecting box is fixedly connected to the connecting block, and the connecting box contacts the connecting plate. The connecting box has ventilation holes, and a desiccant is in contact with the inside of the connecting box. Bolts are threadedly connected to the inside of the energy control device, and the bolts are slidably connected to the connecting plate. The connecting block and the locking block are an integral structure, and both the connecting block and the locking block are made of rubber. The locking block is designed so that it can deform under pressure.

[0017] During use, the connecting plate and filter screen can prevent dust from entering the energy control device and making it difficult to clean. The connecting box and desiccant can also prevent moisture from entering the energy control device and keep it dry, preventing moisture from corroding and damaging the internal components, thus indirectly improving the service life of the energy control device.

[0018] When the desiccant needs to be replaced, first turn the bolt to separate it from the energy control device through the threaded connection between the bolt and the energy control device. Then, move the connecting plate upwards to remove the entire structure of the connecting plate and connecting box from the energy control device. Next, pull the connecting box forcefully. The connecting box moves the connecting block, which in turn moves the locking block. This causes the locking block to be deformed by compression, allowing it to be pulled out of the slot. This separates the connecting box from the connecting plate, making it easy to replace the desiccant. The process is convenient and easy to use.

[0019] By designing the connecting plate and filter, the energy control device can be dustproofed, preventing dust from entering and becoming difficult to clean. The connecting box and desiccant can also prevent moisture from entering the device and keep it dry, preventing moisture from corroding and damaging the internal components, thus extending the lifespan of the energy control device. The desiccant can also be easily replaced, making it convenient to use.

[0020] Furthermore, the downdraft fixed-bed gasifier includes:

[0021] The combustion section is used to receive the pre-treated raw materials and allow them to burn inside. An air inlet pipe is provided on the side of the combustion section.

[0022] The gasification section, located above and connected to the combustion section, is used for the gasification reaction;

[0023] The gas collecting section, located above and connected to the gasification section, is used to collect the combustible gas after gasification.

[0024] The secondary pyrolysis section is inclined and penetrates the combustion section. The lowest point of the secondary pyrolysis section is located in the upper half of the combustion section. The position where the intake pipe contacts the combustion section is lower than the lowest point of the secondary pyrolysis section. The lowest point of the secondary pyrolysis section is located inside the combustion section and is provided with a detachable receiving section. The receiving section is connected to the secondary pyrolysis section.

[0025] The principle and advantages of this scheme are as follows: The combustion section, gasification section, and gas collection section enable the gasification of biomass. A certain amount of tar is generated during the gasification process, which, if left untreated, will severely affect the gasification rate and cause environmental pollution. In this scheme, the tar in the combustible gas exiting the gas collection section will be generated in the secondary pyrolysis section due to changes in temperature and other conditions. However, because the secondary pyrolysis section is inclined, the tar will accumulate at its lowest point under the influence of gravity. A containment section is located at the lowest point of the secondary pyrolysis section, and this containment section is situated within the combustion section. Therefore, the tar in the containment section will undergo pyrolysis due to the high temperature within the combustion section.

[0026] During the pyrolysis process within the containment section, new combustible gases are generated, causing the tar to undergo a boiling-like reaction. The tar then breaks down into small droplets, which rise from the lowest point of the secondary pyrolysis section along with the combustible gases. Because the contact point between the intake pipe and the combustion chamber is lower than the lowest point of the secondary pyrolysis section, the oxidation reaction begins (and is relatively complete) from this point. The heat generated during this process gradually accumulates upwards, resulting in higher temperatures at higher positions within the secondary pyrolysis section. At this point, the tiny tar droplets inside are more easily pyrolyzed, significantly improving the tar pyrolysis efficiency (of course, in practical implementation, this can be further improved by adding catalyst design, which is also an optimization direction). Products that cannot be pyrolyzed can be collected by directly disassembling the containment section.

[0027] Furthermore, the internal combustion generator includes:

[0028] The internal combustion engine includes a power control submodule, a gas quality detection module, an exhaust pipe, and a power output shaft. The gas quality detection module is used to detect the residual oxygen in the gas output from the secondary pyrolysis section. The power control submodule is used to control the intake and gas volume of the internal combustion engine according to the power generation control command and the residual oxygen. The exhaust pipe is coiled around the outside of the intake pipe.

[0029] The generator rotor is fixedly connected to the power output shaft;

[0030] The generator stator has a mounting base below it. The generator stator is slidably connected to the mounting base and is located outside the generator rotor. The mounting base has a load adjustment module with a sliding groove below it that changes the position between the generator stator and the generator rotor under the action of external force. The sliding groove is parallel to the rotation axis of the generator rotor.

[0031] The load regulation module is used to change the position between the generator stator and the generator rotor according to the generator control command.

[0032] The principle and advantages of this scheme: Previous schemes primarily reduced efficiency by decreasing reactants. However, this approach, due to insufficient consideration of the characteristics of the internal combustion engine, resulted in a decrease in engine speed, which is not inherently an economical solution (a decrease in engine speed leads to both emissions issues and reduced engine lifespan, such as carbon buildup). Therefore, in this scheme, the power generation is reduced by adjusting the load. The relative area between the generator rotor and stator determines their relative resistance (the current generated by a conductor in a magnetic field opposes changes in the magnetic field). Therefore, this scheme uses a load adjustment module to adjust the relative position between the generator stator and rotor, thereby adjusting the internal combustion engine resistance (or load). Then, the power control submodule controls the intake of combustible gas into the generator to control the engine speed, ensuring the engine always operates at a more economical speed, thus guaranteeing the economy and lifespan of the entire system.

[0033] Furthermore, the connecting plate has a slot, and a locking block is engaged inside the slot. By designing the slot and the locking block to engage, the connecting box can be fixed in place.

[0034] Furthermore, there are multiple ventilation holes, which are evenly distributed on the connecting box. The design of these ventilation holes allows gas to flow through them.

[0035] Furthermore, the connecting plate has a through groove, and a bolt is slidably connected inside the through groove. The through groove is designed so that the bolt can slide within it.

[0036] Furthermore, it also includes the mobile terminal connection module, which is connected to the data center.

[0037] Furthermore, it also includes a data storage module, which is connected to the data center. By designing the data storage module and data center, working data can be stored.

[0038] Furthermore, it also includes an anomaly alarm module, which is connected to the data center. When an anomaly occurs, an alarm is triggered through the anomaly alarm module, facilitating timely handling of the anomaly. Attached Figure Description

[0039] Figure 1 This is a system schematic diagram of a distributed intelligent peak-shaving energy regulation system based on biomass, according to an embodiment of the present invention.

[0040] Figure 2 This is a three-dimensional view of the overall structure of the distributed intelligent peak-shaving energy regulation system based on biomass, according to an embodiment of the present invention.

[0041] Figure 3 This invention relates to a distributed intelligent peak-shaving energy regulation system based on biomass. Figure 2 A front sectional view;

[0042] Figure 4 This invention relates to a distributed intelligent peak-shaving energy regulation system based on biomass. Figure 3 Enlarged view of point A;

[0043] Figure 5 This is a schematic diagram of Embodiment 2 of the distributed intelligent peak-shaving energy regulation system based on biomass according to the present invention;

[0044] Figure 6 This is a schematic diagram of Embodiment 3 of the distributed intelligent peak-shaving energy regulation system based on biomass according to the present invention. Detailed Implementation

[0045] The following detailed description illustrates the specific implementation method:

[0046] The reference numerals in the accompanying drawings include: 1. Base; 2. Energy regulation device; 3. Connecting plate; 4. Filter screen; 5. Connecting block; 6. Locking block; 7. Locking slot; 8. Connecting box; 9. Ventilation hole; 10. Desiccant; 11. Bolt; 12. Through slot; 21. Power monitoring module; 22. Abnormal alarm module; 24. Data storage module; 25. Data center; 26. Mobile terminal connection module; 30. Combustion section; 31. Gasification section; 32. Gas collection section; 33. Secondary pyrolysis section; 40. Generator rotor; 41. Generator stator; 42. Mounting base; 43. Load regulation module.

[0047] Example 1

[0048] like Figure 1 As shown, this embodiment provides a distributed intelligent peak-shaving energy regulation system based on biomass, including:

[0049] The biomass power generation module includes a downdraft fixed-bed gasifier and an internal combustion generator. The downdraft fixed-bed gasifier is used to receive pre-treated raw materials and gasify them. The generated gas is purified and cooled by multi-stage water washing to meet the requirements of the internal combustion generator. Then, it is transported to the internal combustion generator through a gas transmission pipeline, and the internal combustion generator generates the first current.

[0050] The power grid monitoring module 21 is installed on the main power supply line of the community and is used to periodically collect and send load data and power grid parameter data on the main power supply line.

[0051] Data center 25 is used to receive load data from the main power supply line, and based on the load data and the current time, determine the peak and valley conditions of the current power consumption and generate power generation control commands.

[0052] Energy regulation device 2 (actually) Figure 1 The controller should be receiving control from the data center, but for ease of understanding, an energy control device 2 is used. The energy control device 2 includes a controller, a feeding motor, and a screw feeding shaft. The feeding motor is fixed to the energy control device, and the screw feeding shaft passes through the side wall of the energy control device and is fixedly connected to the rotating shaft of the feeding motor. The screw feeding shaft can transport the pre-treated raw materials to the down-suction fixed bed gasifier. The controller is used to receive power generation control commands and control the rotation speed of the feeding motor according to the content of the power generation control commands.

[0053] A grid-connected module (not shown) is used to receive grid parameter data and to condition the first current into a second supply current that can be input into the community grid and transmit it to the community's main power supply line.

[0054] The data center 25 generates power generation control commands based on the following logic: if the current load data is greater than the load data of the previous period, and the current time is within a preset peak period, a power generation control command to increase the feeding speed is generated; if the current load data is less than the load data of the previous period, and the current time is within a preset peak period, a power generation control command to maintain the feeding speed is generated; if the current time is not within a preset peak period, and the increase in the current load data compared to the load data of the previous period does not exceed a preset value, a power generation control command to maintain the minimum speed is generated; if the current time is not within a preset peak period, but the increase in the current load data compared to the load data of the previous period exceeds a preset value, a power generation control command to increase the feeding speed is generated.

[0055] like Figure 2 , Figure 3 , Figure 4As shown, a base 1 is welded and fixed below the energy control device 2. A connecting plate 3 is slidably connected to the energy control device 2. A filter screen 4 is provided on the connecting plate 3. A connecting block 5 is slidably connected inside the connecting plate 3. A locking block 6 is fixedly connected to the connecting block 5. The connecting block 5 and the locking block 6 are an integral structure. Both the connecting block 5 and the locking block 6 are made of rubber. By designing the locking block 6, the locking block 6 can be deformed under pressure. The locking block 6 is engaged with the connecting plate 3. A slot 7 is opened on the connecting plate 3. The locking block 6 is engaged inside the slot 7. By designing the slot 7 and the locking block 6, the connecting box 8 can be fixed.

[0056] like Figure 2 , Figure 3 , Figure 4 As shown, a connecting box 8 is fixedly connected to the connecting block 5. The connecting box 8 is in contact with the connecting plate 3. The connecting box 8 has multiple ventilation holes 9, which are evenly distributed on the connecting box 8. By designing the ventilation holes 9, gas can flow through the ventilation holes 9. A desiccant 10 is in contact with the inside of the connecting box 8. A bolt 11 is threadedly connected to the inside of the energy control device 2. The bolt 11 is slidably connected to the connecting plate 3. A through groove 12 is provided on the connecting plate 3. The bolt 11 is slidably connected inside the through groove 12. By designing the through groove 12, the bolt 11 can slide within the through groove 12.

[0057] By designing data storage module 24 and data center 25, working data can be stored, and the contents of data storage module 24 can be accessed through mobile terminal connection module 26.

[0058] Example 2

[0059] Compared to Example 1, the only difference is that the downdraft fixed-bed gasifier (such as...) Figure 5 (As shown) includes:

[0060] Combustion section 30 is used to receive pre-treated raw materials and allow the raw materials to burn inside it. An air inlet pipe is provided on the side of combustion section 30.

[0061] The gasification section 31 is located above the combustion section 30 and is connected to the combustion section 30, and is used to carry out the gasification reaction;

[0062] The gas collecting section 32 is located above the gasification section 31 and is connected to the gasification section 31. It is used to collect the gasified combustible gas.

[0063] The secondary pyrolysis section 33 is inclined and penetrates the combustion section 30. The lowest point of the secondary pyrolysis section 33 is located in the upper half of the combustion section 30. The position where the intake pipe contacts the combustion section 30 is lower than the lowest point of the secondary pyrolysis section 33. The lowest point of the secondary pyrolysis section 33 is located inside the combustion section 30 and is provided with a detachable receiving part. The receiving part is connected to the secondary pyrolysis section 33.

[0064] In practical use, the tar in the combustible gas exiting the gas collecting section 32 will be generated in the secondary pyrolysis section 33 due to changes in temperature and other conditions. However, since the secondary pyrolysis section 33 is inclined, the tar will accumulate to its lowest point under the influence of gravity. A receiving section is provided at the lowest point of the secondary pyrolysis section 33, and the receiving section is located inside the combustion section 30. Therefore, the tar in the receiving section will be pyrolyzed due to the high temperature inside the combustion section 30. During the pyrolysis process of the tar in the receiving section, new combustible gas will be generated, causing the tar to undergo a boiling-like phenomenon, and the tar will revert to small droplets, moving upwards with the combustible gas from the lowest point of the secondary pyrolysis section 33. In this process, because the contact point between the intake pipe and the combustion section 30 is lower than the lowest point of the secondary cracking section 33, the oxidation reaction of combustion starts from the lowest point of the secondary cracking section 33 (and is relatively complete). The heat generated in this process gradually accumulates upwards, resulting in higher temperatures at higher positions in the secondary cracking section 33. At this point, the tiny droplets of tar inside are more easily cracked, greatly improving the tar cracking efficiency (of course, in specific implementations, the design of the catalyst can be improved further, which is also an optimization direction). Some products that cannot be cracked can be collected by directly disassembling the containment section.

[0065] Example 3

[0066] The only difference from Example 2 is that the internal combustion generator (such as...) Figure 6 (As shown) includes:

[0067] The internal combustion engine includes a power control submodule, a gas quality detection module, an exhaust pipe, and a power output shaft. The gas quality detection module is used to detect the residual oxygen in the gas output from the secondary pyrolysis unit 33. The power control submodule is used to control the intake and gas volume of the internal combustion engine according to the power generation control command and the residual oxygen. The exhaust pipe is coiled around the outside of the intake pipe.

[0068] The generator rotor 40 is fixedly connected to the power output shaft;

[0069] The generator stator 41 has a mounting base 42 below it. The generator stator 41 is slidably connected to the mounting base 42 and is located outside the generator rotor 40. The mounting base 42 has a load adjustment module 43 below it that can change the position between the generator stator 41 and the generator rotor 40 under the action of external force. The sliding groove is parallel to the rotation axis direction of the generator rotor 40.

[0070] The load adjustment module 43 (in this embodiment, a hydraulic telescopic rod is used as the specific load adjustment module; in other embodiments, a linear motor, cylinder, etc. can also be used) is used to change the position between the generator stator 41 and the generator rotor 40 according to the generator control command.

[0071] In practical use: By adjusting the relative position between the generator stator 41 and the generator rotor 40 through the load adjustment module 43, the resistance (or load) of the internal combustion engine is adjusted. Then, by controlling the intake volume of combustible gas of the generator through the power control submodule, the speed of the internal combustion engine is controlled, so that the internal combustion engine is always at a relatively economical speed, ensuring the economy and service life of the entire system.

[0072] The specific implementation process of this invention is as follows: Real-time electricity consumption is monitored by the power monitoring module. After judgment by the data center, the energy regulation device adjusts the biomass gasification power generation power of the biomass power generation module according to the electricity load, achieving peak-shaving matching between biomass gasification and the power grid. This ensures sufficient electricity supply while also saving energy (raw materials) by reducing power generation power during off-peak hours. When electricity consumption gradually increases and falls within a preset peak period, the power generation power is gradually increased using the time delay characteristic of the biomass power generation module itself, avoiding the harm caused by sudden changes in grid load. After reaching the peak electricity consumption, although electricity consumption gradually decreases (but remains relatively high), the maximum power generation power is maintained to reduce the peak load. Further, as time progresses and electricity consumption decreases further, no longer falling within the peak period, the minimum power generation power is maintained. Although the power generation power changes abruptly from a control perspective, the time delay characteristic of the biomass power generation module's control (power generation power gradually decreases after reducing raw material supply) prevents impact on the power grid and effectively reduces raw material supply.

[0073] In this solution, during peak and off-peak electricity consumption periods, some users may need to recharge high-energy-consuming devices such as new energy vehicles. These devices typically have high power outputs (starting from 3kW, with 7kW being the norm; normal residential areas rarely experience sudden connections to such high-power devices; they are only used for recharging or when a large number of community lighting devices are turned on). To reduce energy consumption, this solution also increases power generation during off-peak periods if such situations occur, thus balancing peak-valley fluctuations.

[0074] The connecting plate 3 and filter 4 act as a dustproof barrier, preventing dust from entering the energy control device 2 and making it difficult to clean. The connecting box 8 and desiccant 10 also act as a moisture barrier, preventing moisture from corroding and damaging internal components, thus extending the lifespan of the energy control device 2. When the desiccant 10 needs to be replaced, first rotate the bolt 11 to separate it from the energy control device 2 via the threaded connection. Then, move the connecting plate 3 upwards to remove the entire structure of the connecting plate 3 and connecting box 8 from the energy control device 2. Pull the connecting box 8 forcefully; it will move the connecting block 5, which in turn moves the locking block 6, causing it to deform under pressure. This allows the locking block 6 to be pulled out of the slot 7, separating the connecting box 8 from the connecting plate 3, making the desiccant 10 easy to replace. This convenient and easy-to-use method is recommended. When the device is working, the energy control device 2 issues instructions and monitors the real-time power consumption through the power monitoring module 21. When there is an abnormality, an alarm is triggered through the abnormality alarm module 22 for timely handling of the abnormality. The energy control device 2 adjusts the biomass gasification power generation power of the biomass power generation module 23 according to the power load, so as to achieve peak matching between biomass gasification and the power grid. While ensuring sufficient power supply, it can also reduce the power generation power during off-peak hours to save energy. Various control data and work logs in the energy control device 2 can be stored in the data center 25 through the data storage module 24. Through the mobile terminal connection module 26, the data center 25 can be accessed through the mobile terminal for convenient querying and use of various data.

[0075] The principle of this invention is that the power consumption can be monitored in real time through the power monitoring module 21, and the power generation of the biomass gasification module 23 can be adjusted according to the power load to achieve peak matching between biomass gasification and the power grid. While ensuring sufficient power supply, the power generation can also be reduced during off-peak hours to save energy.

[0076] By designing the connecting plate 3 and the filter 4, the energy control device 2 can be dustproof, preventing dust from entering the energy control device 2 and making it difficult to clean. Furthermore, the connecting box 8 and the desiccant 10 can prevent moisture from entering the energy control device 2 and keep it dry, preventing moisture from corroding and damaging the internal components, thereby indirectly improving the service life of the energy control device 2. In addition, the desiccant 10 can be easily replaced, making it convenient to use.

[0077] It should be noted in advance that, in this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0078] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A distributed intelligent peak-shaving energy regulation system based on biomass, characterized in that, include: The biomass power generation module includes a downdraft fixed-bed gasifier and an internal combustion generator. The downdraft fixed-bed gasifier is used to receive pre-treated raw materials and gasify them. The generated gas is purified and cooled by multi-stage water washing to meet the requirements of the internal combustion generator. Then, it is transported to the internal combustion generator through a gas transmission pipeline, and the internal combustion generator generates the first current. The power grid monitoring module is installed on the main power supply line of the community to periodically collect and transmit load data and power grid parameter data on the main power supply line. The data center is used to receive load data from the main power supply line, and based on the load data and the current time, to determine the peak and valley conditions of the current electricity consumption and generate power generation control commands. An energy control device includes a controller, a feeding motor, and a screw feeding shaft. The feeding motor is fixed to the energy control device, and the screw feeding shaft passes through the side wall of the energy control device and is fixedly connected to the rotating shaft of the feeding motor. The screw feeding shaft can transport the pre-treated raw materials to the down-suction fixed bed gasifier. The controller is used to receive power generation control commands and control the rotation speed of the feeding motor according to the content of the power generation control commands. The grid connection module is used to receive grid parameter data and to condition the first current into a second power supply current that can be input into the community grid and transmit it to the community's main power supply line. The data center's logic for generating power generation control commands is as follows: if the current load data is greater than the load data of the previous period, and the current time is within a preset peak time period, a power generation control command to increase the feeding speed is generated; if the current load data is less than the load data of the previous period, and the current time is within a preset peak time period, a power generation control command to maintain the feeding speed is generated; if the current time is not within a preset peak time period, and the increase in the current load data compared to the load data of the previous period does not exceed a preset value, a power generation control command to maintain the minimum speed is generated; if the current time is not within a preset peak time period, but the increase in the current load data compared to the load data of the previous period exceeds a preset value, a power generation control command to increase the feeding speed is generated. The downdraft fixed-bed gasifier includes: a combustion section for receiving pre-treated raw materials and allowing the raw materials to burn inside it; the side of the combustion section is provided with an air inlet pipe. The gasification section, located above and connected to the combustion section, is used for the gasification reaction; The gas collecting section, located above and connected to the gasification section, is used to collect the combustible gas after gasification. The secondary pyrolysis section is inclined and penetrates the combustion section. The lowest point of the secondary pyrolysis section is located in the upper half of the combustion section. The position where the intake pipe contacts the combustion section is lower than the lowest point of the secondary pyrolysis section. The lowest point of the secondary pyrolysis section is located inside the combustion section and is provided with a detachable receiving section. The receiving section is connected to the secondary pyrolysis section.

2. The distributed intelligent peak-shaving energy regulation system based on biomass according to claim 1, characterized in that: The internal combustion generator includes an internal combustion engine, which includes a power control submodule, a gas quality detection module, an exhaust pipe, and a power output shaft. The gas quality detection module is used to detect the residual oxygen in the gas output from the secondary pyrolysis section. The power control submodule is used to control the intake air volume and gas volume of the internal combustion engine according to the power generation control command and the residual oxygen volume. The exhaust pipe is coiled around the outside of the intake pipe. The generator rotor is fixedly connected to the power output shaft; The generator stator has a mounting base below it. The generator stator is slidably connected to the mounting base and is located outside the generator rotor. The mounting base has a load adjustment module with a sliding groove below it that changes the position between the generator stator and the generator rotor under the action of external force. The sliding groove is parallel to the rotation axis of the generator rotor. The load regulation module is used to change the position between the generator stator and the generator rotor according to the generator control command.

3. The distributed intelligent peak-shaving energy regulation system based on biomass according to claim 1, characterized in that: A base is fixedly mounted on the energy control device. A connecting plate is slidably connected to the energy control device. A filter screen is installed on the connecting plate. A connecting block is slidably connected inside the connecting plate. A locking block is fixedly connected to the connecting block and engages with the connecting plate. A connecting box is fixedly connected to the connecting block and contacts the connecting plate. A ventilation hole is provided on the connecting box. A desiccant is in contact inside the connecting box. Bolts are threadedly connected to the inside of the energy control device and slidably connected to the connecting plate. The connecting block and the locking block are an integral structure and are both made of rubber.

4. The biomass-based distributed intelligent peak-shaving energy regulation system according to claim 3, characterized in that: The connecting plate has a slot, and a locking block is engaged inside the slot.

5. The distributed intelligent peak-shaving energy regulation system based on biomass according to claim 4, characterized in that: The number of ventilation holes is multiple, and the multiple ventilation holes are evenly distributed on the connecting box.

6. The distributed intelligent peak-shaving energy regulation system based on biomass according to claim 5, characterized in that: The connecting plate has a through groove, and a bolt is slidably connected inside the through groove.

7. The distributed intelligent peak-shaving energy regulation system based on biomass according to claim 6, characterized in that: It also includes a data storage module, which is connected to the data center.

8. The distributed intelligent peak-shaving energy regulation system based on biomass according to claim 7, characterized in that: It also includes a mobile terminal connection module, which is connected to the data center.

9. The distributed intelligent peak-shaving energy regulation system based on biomass according to claim 8, characterized in that: It also includes an anomaly alarm module, which is connected to the data center.

Citation Information

Patent Citations

  • Electric power peak shaving system and method

    CN107181271A