CN113381450B - Distributed power supply access point power quality evaluation system and evaluation control method thereof - Google Patents
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/48—Controlling the sharing of the in-phase component
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- H—ELECTRICITY
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- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/28—The renewable source being wind energy
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
- Y04S10/123—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving renewable energy sources
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Abstract
Description
技术领域technical field
本发明涉分布式电源接入点电能质量评估技术领域,具体涉及分布式电源接入点电能质量评估系统及其评估控制方法。The invention relates to the technical field of power quality evaluation of a distributed power source access point, in particular to a power quality evaluation system of a distributed power source access point and an evaluation control method thereof.
背景技术Background technique
目前,分布式布置的风力发电机已经通过微电网接入到配电网的母线上作为电力系统的供电电源来使用。At present, the distributed wind turbines have been connected to the busbar of the distribution network through the microgrid and used as the power supply of the power system.
由于微电网一般都是由风力发电机提供的电源,风力发电机发电存在间隙性和波动性,因此由风力发电机为配电网提供电源时,就要对分布式电源接入点的电能质量进行评估。Since microgrids are generally powered by wind turbines, wind turbines generate intermittent and fluctuating power. Therefore, when wind turbines provide power to the distribution network, it is necessary to monitor the power quality of the distributed power access point. to evaluate.
目前的评估控制方法不能对配电网母线上的有功功率进行平滑度控制和稳定性控制。The current evaluation control method cannot control the smoothness and stability of the active power on the distribution network bus.
发明内容SUMMARY OF THE INVENTION
本发明是为了解决现在对分布式电源接入点的电能质量评估可靠性差的不足,提供一种能对配电网母线上的有功功率进行平滑度控制和稳定性控制,可靠性高的对布式电源接入点电能质量评估系统及其评估控制方法。The invention is to solve the problem of poor reliability of the current power quality evaluation of the access point of the distributed power supply, and to provide a distribution network capable of smoothness control and stability control of the active power on the busbar of the distribution network, with high reliability. A power quality evaluation system and its evaluation control method for a power supply access point.
为了实现上述目的,本发明采用以下技术方案:In order to achieve the above object, the present invention adopts the following technical solutions:
分布式电源接入点电能质量评估系统,包括配电网、微电网和电网电能质量监控平台,在配电网的母线上分别设有能检测母线电压的母电压检测传感器和能检测母线上功率大小的一号功率检测器;Distributed power supply access point power quality assessment system, including distribution network, micro-grid and power grid power quality monitoring platform, on the bus of the distribution network are respectively equipped with a bus voltage detection sensor that can detect the bus voltage and a power detection sensor that can detect the power on the bus size one power detector;
微电网包括若干台风力发电机,在每台风力发电机的电源输出端分别设有能检测其输出功率的二号功率检测器,每台风力发电机还分别设有一个吹风风力大小可调节的智能引风装置,智能引风装置的后端固定在风力发电机的机架上,智能引风装置的出风口正对着对应的风力发电机的风机叶片布置;The microgrid includes several wind turbines. The power output end of each wind turbine is provided with a No. 2 power detector that can detect its output power. Intelligent air induction device, the rear end of the intelligent air induction device is fixed on the frame of the wind turbine, and the air outlet of the intelligent air induction device is arranged facing the corresponding fan blades of the wind turbine;
母电压检测传感器、一号功率检测器、二号功率检测器和智能引风装置的控制端分别与电网电能质量监控平台相连接。The bus voltage detection sensor, the No. 1 power detector, the No. 2 power detector and the control terminal of the intelligent induced draft device are respectively connected with the power grid power quality monitoring platform.
一种适用于分布式电源接入点电能质量评估系统的评估控制方法,分布式电源接入点电能质量评估控制方法的实现过程如下:An evaluation control method suitable for a power quality evaluation system of a distributed power source access point, the realization process of the power quality evaluation control method of a distributed power source access point is as follows:
在电网电能质量监控平台的控制下,由一号功率检测器实时对配电网母线上的电压进行监测,并同时由母电压检测传感器实时对配电网母线上所接负荷的有功功率进行监测;Under the control of the power grid power quality monitoring platform, the No. 1 power detector monitors the voltage on the distribution network bus in real time, and at the same time, the bus voltage detection sensor monitors the active power of the load connected to the distribution network bus in real time. ;
由于分布式布置的风力发电机在并网后,配电网的线路损耗降低,从微电网到配电网之间的电压降落减小,从而就抬高了配电网母线上的电压,配电网母线上的电压抬高的程度与分布式风力发电机输出电源的接入位置以及接入容量线性相关;After the distributed wind turbines are connected to the grid, the line loss of the distribution network is reduced, and the voltage drop from the microgrid to the distribution network is reduced, thereby raising the voltage on the distribution network bus, and the distribution network The degree of voltage rise on the grid bus is linearly related to the access position and access capacity of the distributed wind turbine output power;
当风力发电机输出的电源容量与母线上所接负荷所需的电量不相等时,让智能引风装置对吹风风力进行大小调节;When the output power capacity of the wind turbine is not equal to the power required by the load connected to the bus, let the intelligent air induction device adjust the size of the blowing wind;
先通过对风力发电机的吹风风力的控制来对风力发电机输出的电源容量的大小进行控制;First, the size of the power supply capacity output by the wind turbine is controlled by controlling the blowing force of the wind turbine;
然后风力发电机输出的电源容量的大小就能自然对配电网母线上的有功功率大小进行控制;Then the size of the power supply capacity output by the wind turbine can naturally control the size of the active power on the distribution network bus;
由于智能引风装置对吹风风力大小的调节是能够平滑进行的,因此通过智能引风装置也就能够对配电网母线上的有功功率进行平滑度控制和稳定性控制。Since the intelligent air induction device can smoothly adjust the blowing force, the intelligent air induction device can also control the smoothness and stability of the active power on the distribution network bus.
作为优选,所述智能引风装置包括主引风管,主引风管的后端出风口正对着风力发电机的风机叶片布置;在主引风管的前端进风口设有呈喇叭状的聚风罩,在聚风罩的喇叭口朝外布置,聚风罩的顶端口对接连接在主引风管的进风口上;在聚风罩上设有若干个开口与聚风罩的喇叭口边沿平行的罩壁孔,在每个罩壁孔上分别设有能关闭对应罩壁孔的孔门,每个孔门均由一台独立的气缸驱动控制其开闭;每台气缸的分别与电网电能质量监控平台相连接。Preferably, the intelligent air induction device includes a main air induction pipe, the rear air outlet of the main air induction pipe is arranged facing the fan blades of the wind turbine; the front air inlet of the main air induction pipe is provided with a trumpet-shaped The wind collecting hood is arranged with the bell mouth of the wind collecting hood facing outward, and the top port of the wind collecting hood is connected to the air inlet of the main air duct; The hood wall holes with parallel edges are provided on each hood wall hole with a hole door that can close the corresponding hood wall hole, and each hole door is driven by an independent air cylinder to control its opening and closing; The power grid power quality monitoring platform is connected.
作为优选,在主引风管内设有管内风力检测区,在管内风力检测区内分别间隔设有水平面风力检测装置和竖直面风力检测装置;Preferably, an in-pipe wind force detection area is provided in the main draft duct, and a horizontal plane wind force detection device and a vertical plane wind force detection device are respectively arranged in the in-pipe wind force detection area at intervals;
水平面风力检测装置包括一号细绳、一号拉力传感器和一号摄像头;The horizontal plane wind detection device includes No. 1 string, No. 1 tension sensor and No. 1 camera;
竖直面风力检测装置包括二号细绳、二号拉力传感器和二号摄像头;The vertical plane wind detection device includes the No. 2 string, the No. 2 tension sensor and the No. 2 camera;
一号拉力传感器固定在主引风管的左内管壁上,一号细绳的两端分别固定在主引风管的右内管壁上和一号拉力传感器的拉力检测端上,一号摄像头固定设在主引风管的上内管壁上;The No. 1 tension sensor is fixed on the left inner pipe wall of the main draft duct. The two ends of the No. 1 string are respectively fixed on the right inner pipe wall of the main draft duct and on the tension detection end of the No. 1 tension sensor. The camera is fixed on the upper inner pipe wall of the main air induction pipe;
二号拉力传感器固定在主引风管的上内管壁上,二号细绳的两端分别固定在主引风管的下内管壁上和二号拉力传感器的拉力检测端上,二号摄像头固定设在主引风管的左内管壁上;The No. 2 tension sensor is fixed on the upper inner pipe wall of the main draft pipe, and the two ends of the No. 2 string are respectively fixed on the lower inner pipe wall of the main draft pipe and the tension detection end of the No. 2 tension sensor. The camera is fixed on the left inner pipe wall of the main air induction pipe;
一号拉力传感器、二号拉力传感器、一号摄像头和二号摄像头分别与电网电能质量监控平台相连接;The No. 1 tension sensor, the No. 2 tension sensor, the No. 1 camera and the No. 2 camera are respectively connected to the power grid power quality monitoring platform;
在电网电能质量监控平台上设有与电网电能质量监控平台相连接的图像处理模块。An image processing module connected to the power grid power quality monitoring platform is arranged on the power grid power quality monitoring platform.
作为优选,在位于管内风力检测区处的主引风管的下内管壁上均布设有若干个下标记点;在位于管内风力检测区处的主引风管的右内管壁上均布设有若干个右标记点。Preferably, a number of lower marking points are evenly distributed on the lower inner pipe wall of the main draft pipe located at the wind detection area in the pipe; evenly distributed on the right inner pipe wall of the main draft pipe located at the wind detection area in the pipe There are several right marker points.
本发明能够达到如下效果:The present invention can achieve the following effects:
本发明能对配电网母线上的有功功率进行平滑度控制和稳定性控制,可靠性高,使用灵活方便,扩展性好。The invention can control the smoothness and stability of the active power on the bus bar of the distribution network, has high reliability, is flexible and convenient to use, and has good expansibility.
附图说明Description of drawings
图1是本发明的一种电路原理连接结构示意图。FIG. 1 is a schematic diagram of a circuit principle connection structure of the present invention.
图2是本发明智能引风装置安装在风力发电机上的一种连接结构示意图。FIG. 2 is a schematic diagram of a connection structure of the intelligent air induction device of the present invention installed on the wind generator.
图3是本发明聚风罩上罩壁孔处的一种连接结构示意图。FIG. 3 is a schematic diagram of a connection structure at the upper cover wall hole of the wind collecting cover according to the present invention.
图4是本发明电网电能质量监控平台与各控制部分相连接的一种电路原理连接结构示意图。FIG. 4 is a schematic diagram of a circuit principle connection structure of the present invention, in which the power grid power quality monitoring platform is connected with each control part.
图5是本发明细绳的弯曲度对称则说明此时主引风管内风均匀的一种状态示意图。FIG. 5 is a schematic diagram of a state in which the bending degree of the string of the present invention is symmetrical, indicating that the air in the main air duct is uniform at this time.
图6是本发明细绳的弯曲度不对称则说明此时主引风管内风不均匀的一种状态示意图。FIG. 6 is a schematic diagram of a state in which the curvature of the string of the present invention is asymmetrical, indicating that the air in the main air duct is not uniform at this time.
具体实施方式Detailed ways
下面结合附图与实施例对本发明作进一步的说明。The present invention will be further described below with reference to the accompanying drawings and embodiments.
实施例,分布式电源接入点电能质量评估系统,参见图1-4所示,包括配电网2、微电网3和电网电能质量监控平台27,在配电网的母线7上分别设有能检测母线电压的母电压检测传感器5和能检测母线上功率大小的一号功率检测器6;In an embodiment, the power quality assessment system for the access point of distributed power sources, as shown in Figures 1-4, includes a distribution network 2, a microgrid 3, and a power grid power
微电网包括若干台风力发电机4,在每台风力发电机的电源输出端分别设有能检测其输出功率的二号功率检测器26,每台风力发电机还分别设有一个吹风风力大小可调节的智能引风装置19,智能引风装置的后端固定在风力发电机的机架8上,智能引风装置的出风口正对着对应的风力发电机的风机叶片9布置;The microgrid includes several wind power generators 4, and the power output end of each wind power generator is respectively provided with a No. 2
母电压检测传感器、一号功率检测器、二号功率检测器和智能引风装置的控制端分别与电网电能质量监控平台相连接。The bus voltage detection sensor, the No. 1 power detector, the No. 2 power detector and the control terminal of the intelligent induced draft device are respectively connected with the power grid power quality monitoring platform.
所述智能引风装置包括主引风管22,主引风管的后端出风口30正对着风力发电机的风机叶片布置;在主引风管的前端进风口29设有呈喇叭状的聚风罩24,在聚风罩的喇叭口朝外布置,聚风罩的顶端口对接连接在主引风管的进风口上;在聚风罩上设有若干个开口与聚风罩的喇叭口边沿平行的罩壁孔18,在每个罩壁孔上分别设有能关闭对应罩壁孔的孔门16,每个孔门均由一台独立的气缸15驱动控制其开闭;每台气缸的分别与电网电能质量监控平台相连接。The intelligent air induction device includes a main
在每个罩壁孔处的聚风罩外壁上设有滑槽25,滑槽的外口边沿设有防脱挡边17,孔门滑动设置在滑槽内,气缸的缸座固定设置在滑槽的下端,气缸的伸缩杆固定连接在孔门上。气缸推动孔门在滑槽内滑动来实现孔门对罩壁孔的开闭。A
在主引风管内设有管内风力检测区21,在管内风力检测区内分别间隔设有水平面风力检测装置和竖直面风力检测装置;In the main draft duct, an in-pipe wind
水平面风力检测装置包括一号细绳13、一号拉力传感器14和一号摄像头23;The horizontal plane wind detection device includes No. 1
竖直面风力检测装置包括二号细绳10、二号拉力传感器28和二号摄像头12;The vertical plane wind detection device includes the No. 2
一号拉力传感器固定在主引风管的左内管壁上,一号细绳的两端分别固定在主引风管的右内管壁上和一号拉力传感器的拉力检测端上,一号摄像头固定设在主引风管的上内管壁上;The No. 1 tension sensor is fixed on the left inner pipe wall of the main draft duct. The two ends of the No. 1 string are respectively fixed on the right inner pipe wall of the main draft duct and on the tension detection end of the No. 1 tension sensor. The camera is fixed on the upper inner pipe wall of the main air induction pipe;
二号拉力传感器固定在主引风管的上内管壁上,二号细绳的两端分别固定在主引风管的下内管壁上和二号拉力传感器的拉力检测端上,二号摄像头固定设在主引风管的左内管壁上;The No. 2 tension sensor is fixed on the upper inner pipe wall of the main draft pipe, and the two ends of the No. 2 string are respectively fixed on the lower inner pipe wall of the main draft pipe and the tension detection end of the No. 2 tension sensor. The camera is fixed on the left inner pipe wall of the main air induction pipe;
一号拉力传感器、二号拉力传感器、一号摄像头和二号摄像头分别与电网电能质量监控平台相连接。The No. 1 tension sensor, the No. 2 tension sensor, the No. 1 camera and the No. 2 camera are respectively connected with the power grid power quality monitoring platform.
在电网电能质量监控平台上设有与电网电能质量监控平台相连接的图像处理模块31。图像处理模块易于对摄像头拍摄到的图像进行处理。An image processing module 31 connected to the power grid power quality monitoring platform is provided on the power grid power quality monitoring platform. The image processing module is easy to process the image captured by the camera.
在一号拉力传感器、二号拉力传感器、一号摄像头和二号摄像头处的主引风管内壁上都分别设有凹槽11,一号拉力传感器、二号拉力传感器、一号摄像头和二号摄像头都分别设置在对应的凹槽内。凹槽减小风对一号拉力传感器、二号拉力传感器、一号摄像头和二号摄像头的破坏。There are
在位于管内风力检测区处的主引风管的下内管壁上均布设有若干个下标记点20;在位于管内风力检测区处的主引风管的右内管壁上均布设有若干个右标记点。标记点在用户看摄像头怕是的图时,可根据细绳遮挡标记点位置即可判断出此时主引风管内风的大致均匀度。也方便图像处理模块对细绳图像的处理。A number of lower marking points 20 are evenly distributed on the lower inner pipe wall of the main air induction pipe located at the wind force detection area in the pipe; right marker point. When the marked point is viewed by the camera, the user can judge the approximate uniformity of the air in the main air duct at this time according to the position of the marked point blocked by the string. It is also convenient for the image processing module to process the string image.
一种适用于分布式电源接入点电能质量评估系统的评估控制方法,分布式电源接入点电能质量评估控制方法的实现过程如下:An evaluation control method suitable for a power quality evaluation system of a distributed power source access point, the realization process of the power quality evaluation control method of a distributed power source access point is as follows:
在电网电能质量监控平台的控制下,由一号功率检测器实时对配电网母线上的电压进行监测,并同时由母电压检测传感器实时对配电网母线上所接负荷的有功功率进行监测;Under the control of the power grid power quality monitoring platform, the No. 1 power detector monitors the voltage on the distribution network bus in real time, and at the same time, the bus voltage detection sensor monitors the active power of the load connected to the distribution network bus in real time. ;
由于分布式布置的风力发电机在并网后,配电网的线路损耗降低,从微电网到配电网之间的电压降落减小,从而就抬高了配电网母线上的电压,配电网母线上的电压抬高的程度与分布式风力发电机输出电源的接入位置以及接入容量线性相关;After the distributed wind turbines are connected to the grid, the line loss of the distribution network is reduced, and the voltage drop from the microgrid to the distribution network is reduced, thereby raising the voltage on the distribution network bus, and the distribution network The degree of voltage rise on the grid bus is linearly related to the access position and access capacity of the distributed wind turbine output power;
当风力发电机输出的电源容量与母线上所接负荷1所需的电量不相等时,让智能引风装置对吹风风力进行大小调节;When the power capacity output by the wind turbine is not equal to the power required by the load 1 connected to the bus, let the intelligent air induction device adjust the size of the blowing wind;
先通过对风力发电机的吹风风力的控制来对风力发电机输出的电源容量的大小进行控制;First, the size of the power supply capacity output by the wind turbine is controlled by controlling the blowing force of the wind turbine;
然后风力发电机输出的电源容量的大小就能自然对配电网母线上的有功功率大小进行控制;Then the size of the power supply capacity output by the wind turbine can naturally control the size of the active power on the distribution network bus;
由于智能引风装置对吹风风力大小的调节是能够平滑进行的,因此通过智能引风装置也就能够对配电网母线上的有功功率进行平滑度控制和稳定性控制。Since the intelligent air induction device can smoothly adjust the blowing force, the intelligent air induction device can also control the smoothness and stability of the active power on the distribution network bus.
通过气缸就能控制孔门的开闭,孔门开闭的大小和开启的孔门的个数就能够很好的对从聚风罩进入到主引风管内的风的大小。The opening and closing of the hole door can be controlled by the air cylinder, and the size of the hole door opening and closing and the number of the hole door opening can be well matched to the size of the wind entering the main air duct from the air collecting hood.
通过摄像头对对应的细绳进行拍摄,并对图像进行处理后即可知道此时分的大小。如果风力大,拉力传感器检测到的压力就大,如果风力小拉力传感器检测到的拉力就小。并且此时通过摄像头拍摄对应细绳的弯曲状态,即可知道此时在主引风管内风的均匀度,参见图6所示,如果细绳的弯曲度不对称则说明此时主引风管内风不均匀,参见图5所示,如果细绳的弯曲度对称则说明此时主引风管内风均匀,不均匀的风吹到风机叶片上会让叶片产生不平衡的抖动。叶片抖动会影响风机损坏,进而导致风机输出有功功率出现不易控制。The corresponding string is photographed by the camera, and the size of the moment can be known after the image is processed. If the wind force is large, the pressure detected by the tensile force sensor is large, and if the wind force is small, the tensile force detected by the tensile force sensor is small. And at this time, the bending state of the corresponding string is captured by the camera, and the uniformity of the wind in the main air duct at this time can be known. See Figure 6. If the bending of the string is asymmetrical, it means that the main air duct The wind is uneven, as shown in Figure 5. If the curvature of the string is symmetrical, it means that the wind in the main air duct is uniform at this time, and the uneven wind blowing on the fan blade will cause the blade to shake unbalanced. The blade vibration will affect the damage of the fan, which will lead to the difficulty in controlling the output active power of the fan.
由于分布式布置的风力发电机在并网后,配电网的线路损耗降低,从微电网到配电网之间的电压降落减小,从而就抬高了配电网母线上的电压,配电网母线上的电压抬高的程度与分布式风力发电机输出电源的接入位置以及接入容量线性相关;After the distributed wind turbines are connected to the grid, the line loss of the distribution network is reduced, and the voltage drop from the microgrid to the distribution network is reduced, thereby raising the voltage on the distribution network bus, and the distribution network The degree of voltage rise on the grid bus is linearly related to the access position and access capacity of the distributed wind turbine output power;
当风力发电机输出的电源容量大于母线上所需的负荷时,风力发电机电源会向配电网反向输送功率,这时由智能引风装置将吹风风力进行调小,让风力发电机输出的电源容量等于母线上所接负荷所需的电量;When the output power capacity of the wind turbine is greater than the load required on the bus, the wind turbine power supply will reversely transmit power to the distribution network. The power capacity of the bus is equal to the power required by the load connected to the bus;
当风力发电机输出的电源容量小于母线上所需的负荷时,分布式电源并网点母线和输电线路部分节点电压将会下降,,这时由智能引风装置将吹风风力进行调大,让风力发电机输出的电源容量等于母线上所接负荷所需的电量。When the output power capacity of the wind turbine is less than the load required on the bus, the voltage of the distributed power grid connection point bus and some nodes of the transmission line will drop. The power capacity output by the generator is equal to the power required by the load connected to the bus.
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