CN110676840A - Power system control equipment and power system control method - Google Patents
Power system control equipment and power system control method Download PDFInfo
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- CN110676840A CN110676840A CN201910812822.2A CN201910812822A CN110676840A CN 110676840 A CN110676840 A CN 110676840A CN 201910812822 A CN201910812822 A CN 201910812822A CN 110676840 A CN110676840 A CN 110676840A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; 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
- H02J3/01—Arrangements for reducing harmonics or ripples
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Y02E40/40—Arrangements for reducing harmonics
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Abstract
Description
技术领域technical field
本发明涉及电力控制技术领域,具体领域为一种电力系统控制设备和电力系统控制方法。The present invention relates to the technical field of power control, in particular to a power system control device and a power system control method.
背景技术Background technique
电力系统,由发电、变电、输电、配电和用电等环节组成的电能生产与消费系统。它的功能是将自然界的一次能源通过发电动力装置(主要包括锅炉、汽轮机、发电机及电厂辅助生产系统等)转化成电能,再经输、变电系统及配电系统将电能供应到各负荷中心。由于电源点与负荷中心多数处于不同地区,也无法大量储存,电能生产必须时刻保持与消费平衡。因此,电能的集中开发与分散使用,以及电能的连续供应与负荷的随机变化,就制约了电力系统的结构和运行,现有电力系统控制设备,不能对电力设备进行监控并控制,需要经常关闭开启电力设备,浪费能源。Electric power system is an electric energy production and consumption system composed of power generation, substation, transmission, distribution and consumption. Its function is to convert primary energy in nature into electric energy through power generation devices (mainly including boilers, steam turbines, generators and auxiliary production systems of power plants, etc.), and then supply electric energy to various loads through transmission, transformation and distribution systems. center. Since most of the power points and load centers are located in different regions and cannot be stored in large quantities, the electricity production must always be kept in balance with the consumption. Therefore, the centralized development and decentralized use of electric energy, as well as the continuous supply of electric energy and the random changes of the load, restrict the structure and operation of the power system. The existing power system control equipment cannot monitor and control the power equipment, and needs to be shut down frequently. Turn on electrical equipment and waste energy.
发明内容SUMMARY OF THE INVENTION
本发明的目的在于提供一种电力系统控制设备和电力系统控制方法,以解决上述背景技术中提出的问题。The purpose of the present invention is to provide a power system control device and a power system control method to solve the problems raised in the above background art.
为实现上述目的,本发明提供如下技术方案:一种电力系统控制设备和电力系统控制方法,包括电源、桥式整流电路、平波电抗器、三相桥式逆变电路、滤波器、电力设备、电流电压互感器和处理器,所述电源与桥式整流电路电性连接,所述桥式整流电路与平波电抗器电性相连,所述波电抗器与三相桥式逆变器电性相连,所述三相桥式逆变器通过滤波器与电力设备电性相连,所述电力设备与电流电压互感器电性相连,所述电流电压互感器与处理器电性相连,所述电源将三相交流电输出至桥式整流电路,所述桥式整流电路将输入的电流整流后变成直流电并输出至平波电抗器中,所述平波电抗器对输入的电流进行稳压后将其输送至三相桥式逆变电路中,所述三相桥式逆变电路将逆变后的电流传输至滤波器中并通过滤波器对电源线中特定频率的频点或该频点以外的频率进行有效滤除,得到一个特定频率的电源信号并传输至电力设备中,所述电流电压互感器检测三相桥式逆变电路的输出电流值并将检测到的数值传输至处理器中,所述处理器将传入的数据进行分析处理,并将处理后的电流信号等传输至脉冲宽度调制电路中,所述脉冲宽度调制电路将逆变控制信号传输回三相桥式逆变电路,并在此通过三相桥式逆变电路将逆变后的电流传输至滤波器中并通过滤波器对电源线中特定频率的频点或该频点以外的频率进行有效滤除,得到一个特定频率的电源信号并传输至电力设备中。In order to achieve the above purpose, the present invention provides the following technical solutions: a power system control device and a power system control method, including a power supply, a bridge rectifier circuit, a smoothing reactor, a three-phase bridge inverter circuit, a filter, and a power device , a current voltage transformer and a processor, the power supply is electrically connected to a bridge rectifier circuit, the bridge rectifier circuit is electrically connected to a smoothing reactor, and the wave reactor is electrically connected to a three-phase bridge inverter. The three-phase bridge inverter is electrically connected to the power equipment through the filter, the power equipment is electrically connected to the current and voltage transformer, the current and voltage transformer is electrically connected to the processor, and the The power supply outputs the three-phase alternating current to the bridge rectifier circuit, and the bridge rectifier circuit rectifies the input current into direct current and outputs it to the smoothing reactor, after the smoothing reactor stabilizes the input current It is sent to the three-phase bridge inverter circuit, and the three-phase bridge inverter circuit transmits the inverted current to the filter and passes the filter to the frequency point of a specific frequency in the power line or the frequency point. The frequency other than the frequency is effectively filtered, and a power signal of a specific frequency is obtained and transmitted to the power equipment. The current and voltage transformer detects the output current value of the three-phase bridge inverter circuit and transmits the detected value to the processor. , the processor analyzes and processes the incoming data, and transmits the processed current signal, etc. to the pulse width modulation circuit, which transmits the inverter control signal back to the three-phase bridge inverter Here, the inverter current is transmitted to the filter through the three-phase bridge inverter circuit, and the frequency point of the specific frequency in the power line or the frequency other than the frequency point in the power line is effectively filtered through the filter, and the result is A power signal of a specific frequency is transmitted to the power equipment.
优选的,还包括处理器、温度传感器、室内温度检测器、发电机、散热器和控制器,所述处理器与控制器电性相连,所述控制器与散热器电性相连,所述散热器与发电机电性相连,所述发电机的外壁与温度传感器相贴合,所述温度传感器与处理器电性相连,所述处理器与室内温度检测器电性相连,所述室内温度检测器检测发电机装配室内的温度,并将信号传输给处理器进行分析比对,所述温度传感器监测发电机表面的温度,并将信号传输给处理器进行分析比对,所述处理器将分析处理后的信号传输给控制器决定是否开启控制器,所述控制器将信号传输给散热器决定是否开启散热器。Preferably, it also includes a processor, a temperature sensor, an indoor temperature detector, a generator, a radiator and a controller. The processor is electrically connected to the controller, the controller is electrically connected to the radiator, and the heat sink is electrically connected. The generator is electrically connected to the generator, the outer wall of the generator is attached to the temperature sensor, the temperature sensor is electrically connected to the processor, the processor is electrically connected to the indoor temperature detector, and the indoor temperature detector is electrically connected Detect the temperature in the generator assembly room, and transmit the signal to the processor for analysis and comparison, the temperature sensor monitors the temperature of the generator surface, and transmits the signal to the processor for analysis and comparison, and the processor will analyze and process The latter signal is transmitted to the controller to decide whether to turn on the controller, and the controller transmits the signal to the radiator to decide whether to turn on the radiator.
优选的,所述处理器电性连接有移动设备,所述移动设备电性连接有显示器,所述移动设备可以远程监控设备整体的运行状态,所述显示器显示所需数据信息。Preferably, the processor is electrically connected with a mobile device, the mobile device is electrically connected with a display, the mobile device can remotely monitor the overall running state of the device, and the display displays required data information.
一种电力系统控制方法,包括以下步骤:A power system control method, comprising the following steps:
步骤一:电源将三相交流电输出至桥式整流电路中对电流进行整流工作;Step 1: The power supply outputs the three-phase alternating current to the bridge rectifier circuit to rectify the current;
步骤二:桥式整流电路将输入的电流整流后变成直流电并输出至平波电抗器中,并对输入的电流进行稳压;Step 2: The bridge rectifier circuit rectifies the input current into direct current and outputs it to the smoothing reactor, and stabilizes the input current;
步骤三:平波电抗器对输入的电流进行稳压后将其输送至三相桥式逆变电路中,并将电流进行逆变;Step 3: The smoothing reactor stabilizes the input current and then transmits it to the three-phase bridge inverter circuit, and inverts the current;
步骤四:三相桥式逆变电路将逆变后的电流传输至滤波器中并通过滤波器对电源线中特定频率的频点或该频点以外的频率进行有效滤除,得到一个特定频率的电源信号并传输至电力设备中;Step 4: The three-phase bridge inverter circuit transmits the inverted current to the filter and effectively filters the frequency point of a specific frequency in the power line or the frequency other than the frequency point through the filter to obtain a specific frequency the power signal and transmit it to the power equipment;
步骤五:电流电压互感器检测三相桥式逆变电路的输出电流值并将检测到的数值传输至处理器中,处理器将传入的数据进行分析处理;Step 5: The current and voltage transformer detects the output current value of the three-phase bridge inverter circuit and transmits the detected value to the processor, and the processor analyzes and processes the incoming data;
步骤六:处理器将处理后的电流信号等传输至脉冲宽度调制电路中,脉冲宽度调制电路将逆变控制信号传输回三相桥式逆变电路,并在此通过三相桥式逆变电路将逆变后的电流传输至滤波器中并通过滤波器对电源线中特定频率的频点或该频点以外的频率进行有效滤除,得到一个特定频率的电源信号并传输至电力设备中。Step 6: The processor transmits the processed current signal to the pulse width modulation circuit, and the pulse width modulation circuit transmits the inverter control signal back to the three-phase bridge inverter circuit, and passes the three-phase bridge inverter circuit here. The inverted current is transmitted to the filter, and the frequency point of a specific frequency in the power line or the frequency other than the frequency point in the power line is effectively filtered through the filter, and a power signal of a specific frequency is obtained and transmitted to the power equipment.
优选的,步骤一中所述的电源为电网电源。Preferably, the power source described in step 1 is a grid power source.
与现有技术相比,本发明的有益效果是:一种电力系统控制设备和电力系统控制方法,可以对电力设备的工作进行控制,保证电力设备可以更稳定的进行工作,自动对设备中的电流等进行监测与控制,不需要经常关闭开启电力设备,节省能源消耗,实用性强。Compared with the prior art, the beneficial effects of the present invention are: a power system control device and a power system control method, which can control the operation of the power device, ensure that the power device can work more stably, and automatically control the operation of the power device. Current monitoring and control, do not need to turn off the power equipment frequently, save energy consumption, strong practicability.
附图说明Description of drawings
图1为本发明的结构示意图;Fig. 1 is the structural representation of the present invention;
具体实施方式Detailed ways
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
请参阅图1,本发明提供一种技术方案:一种电力系统控制设备和电力系统控制方法,包括电源、桥式整流电路、平波电抗器、三相桥式逆变电路、滤波器、电力设备、电流电压互感器和处理器,所述电源与桥式整流电路电性连接,所述桥式整流电路与平波电抗器电性相连,所述波电抗器与三相桥式逆变器电性相连,所述三相桥式逆变器通过滤波器与电力设备电性相连,所述电力设备与电流电压互感器电性相连,所述电流电压互感器与处理器电性相连,所述电源将三相交流电输出至桥式整流电路,所述桥式整流电路将输入的电流整流后变成直流电并输出至平波电抗器中,所述平波电抗器对输入的电流进行稳压后将其输送至三相桥式逆变电路中,所述三相桥式逆变电路将逆变后的电流传输至滤波器中并通过滤波器对电源线中特定频率的频点或该频点以外的频率进行有效滤除,得到一个特定频率的电源信号并传输至电力设备中,所述电流电压互感器检测三相桥式逆变电路的输出电流值并将检测到的数值传输至处理器中,所述处理器将传入的数据进行分析处理,并将处理后的电流信号等传输至脉冲宽度调制电路中,所述脉冲宽度调制电路将逆变控制信号传输回三相桥式逆变电路,并在此通过三相桥式逆变电路将逆变后的电流传输至滤波器中并通过滤波器对电源线中特定频率的频点或该频点以外的频率进行有效滤除,得到一个特定频率的电源信号并传输至电力设备中。Referring to FIG. 1, the present invention provides a technical solution: a power system control device and a power system control method, including a power supply, a bridge rectifier circuit, a smoothing reactor, a three-phase bridge inverter circuit, a filter, a power supply Equipment, current and voltage transformer and processor, the power supply is electrically connected to a bridge rectifier circuit, the bridge rectifier circuit is electrically connected to a smoothing reactor, and the wave reactor is electrically connected to a three-phase bridge inverter Electrically connected, the three-phase bridge inverter is electrically connected with the power equipment through the filter, the power equipment is electrically connected with the current and voltage transformer, and the current and voltage transformer is electrically connected with the processor, so The power supply outputs the three-phase alternating current to the bridge rectifier circuit, and the bridge rectifier circuit rectifies the input current into direct current and outputs it to the smoothing reactor, and the smoothing reactor regulates the input current. Then, it is sent to the three-phase bridge inverter circuit, and the three-phase bridge inverter circuit transmits the inverter current to the filter and passes the filter to the frequency point of a specific frequency in the power line or the frequency point of the frequency. The frequency outside the point is effectively filtered to obtain a power signal of a specific frequency and transmitted to the power equipment. The current and voltage transformer detects the output current value of the three-phase bridge inverter circuit and transmits the detected value to the processing In the device, the processor analyzes and processes the incoming data, and transmits the processed current signal, etc. to the pulse width modulation circuit, which transmits the inverter control signal back to the three-phase bridge inverter. The inverter circuit, where the inverter current is transmitted to the filter through the three-phase bridge inverter circuit, and the frequency point of the specific frequency in the power line or the frequency other than the frequency point in the power line is effectively filtered through the filter, A power signal of a specific frequency is obtained and transmitted to the power equipment.
通过电源将三相交流电输出至桥式整流电路中对电流进行整流工作,桥式整流电路将输入的电流整流后变成直流电并输出至平波电抗器中,并对输入的电流进行稳压,平波电抗器对输入的电流进行稳压后将其输送至三相桥式逆变电路中,并将电流进行逆变,三相桥式逆变电路将逆变后的电流传输至滤波器中并通过滤波器对电源线中特定频率的频点或该频点以外的频率进行有效滤除,得到一个特定频率的电源信号并传输至电力设备中,电流电压互感器检测三相桥式逆变电路的输出电流值并将检测到的数值传输至处理器中,处理器将传入的数据进行分析处理,处理器将处理后的电流信号等传输至脉冲宽度调制电路中,脉冲宽度调制电路将逆变控制信号传输回三相桥式逆变电路,并在此通过三相桥式逆变电路将逆变后的电流传输至滤波器中并通过滤波器对电源线中特定频率的频点或该频点以外的频率进行有效滤除,得到一个特定频率的电源信号并传输至电力设备中,可以对电力设备的工作进行控制,保证电力设备可以更稳定的进行工作,自动对设备中的电流等进行监测与控制,不需要经常关闭开启电力设备,节省能源消耗,实用性强。The three-phase alternating current is output to the bridge rectifier circuit through the power supply to rectify the current. The bridge rectifier circuit rectifies the input current into direct current and outputs it to the smoothing reactor, and stabilizes the input current. The smoothing reactor stabilizes the input current and sends it to the three-phase bridge inverter circuit, inverts the current, and the three-phase bridge inverter circuit transmits the inverter current to the filter. And the frequency point of a specific frequency in the power line or the frequency other than the frequency point in the power line is effectively filtered through the filter, and a power signal of a specific frequency is obtained and transmitted to the power equipment. The current and voltage transformer detects the three-phase bridge inverter. The output current value of the circuit and the detected value are transmitted to the processor, the processor analyzes and processes the incoming data, and the processor transmits the processed current signal to the pulse width modulation circuit, and the pulse width modulation circuit will The inverter control signal is transmitted back to the three-phase bridge inverter circuit, and the inverter current is transmitted to the filter through the three-phase bridge inverter circuit. The frequencies other than this frequency point are effectively filtered to obtain a power signal of a specific frequency and transmit it to the power equipment. It is not necessary to turn off and turn on the power equipment frequently, save energy consumption, and has strong practicability.
具体而言,还包括处理器、温度传感器、室内温度检测器、发电机、散热器和控制器,所述处理器与控制器电性相连,所述控制器与散热器电性相连,所述散热器与发电机电性相连,所述发电机的外壁与温度传感器相贴合,所述温度传感器与处理器电性相连,所述处理器与室内温度检测器电性相连,所述室内温度检测器检测发电机装配室内的温度,并将信号传输给处理器进行分析比对,所述温度传感器监测发电机表面的温度,并将信号传输给处理器进行分析比对,所述处理器将分析处理后的信号传输给控制器决定是否开启控制器,所述控制器将信号传输给散热器决定是否开启散热器。Specifically, it also includes a processor, a temperature sensor, an indoor temperature detector, a generator, a radiator and a controller, the processor is electrically connected to the controller, the controller is electrically connected to the radiator, the The radiator is electrically connected to the generator, the outer wall of the generator is attached to the temperature sensor, the temperature sensor is electrically connected to the processor, the processor is electrically connected to the indoor temperature detector, and the indoor temperature detection The temperature sensor detects the temperature in the generator assembly room, and transmits the signal to the processor for analysis and comparison. The temperature sensor monitors the temperature of the generator surface and transmits the signal to the processor for analysis and comparison. The processor analyzes and compares The processed signal is transmitted to the controller to decide whether to turn on the controller, and the controller transmits the signal to the radiator to decide whether to turn on the radiator.
发电机在工作时,会产生热量,热量会影响发电机工作,首先通过室内温度检测器检测发电机装配室内的温度,同时通过温度传感器监测发电机表面的温度,此时室内温度检测器和温度传感器会将信息传递给处理器进行分析处理,之后通过处理器发出一个信号给控制器,控制器对信号进行判断,决定是否开启散热器,散热器如果开启后,会将发电机以及发电机装配室内的温度降低,保证发电机的工作效果。When the generator is working, it will generate heat, and the heat will affect the work of the generator. First, the temperature in the generator assembly room is detected by the indoor temperature detector, and the temperature of the generator surface is monitored by the temperature sensor. At this time, the indoor temperature detector and the temperature The sensor will transmit the information to the processor for analysis and processing, and then send a signal to the controller through the processor. The controller judges the signal and decides whether to turn on the radiator. If the radiator is turned on, the generator and generator will be assembled. The indoor temperature is reduced to ensure the working effect of the generator.
具体而言,所述处理器电性连接有移动设备,所述移动设备电性连接有显示器,所述移动设备可以远程监控设备整体的运行状态,所述显示器显示所需数据信息。Specifically, the processor is electrically connected with a mobile device, the mobile device is electrically connected with a display, the mobile device can remotely monitor the overall running state of the device, and the display displays required data information.
一种电力系统控制方法,包括以下步骤:A power system control method, comprising the following steps:
步骤一:电源将三相交流电输出至桥式整流电路中对电流进行整流工作;Step 1: The power supply outputs the three-phase alternating current to the bridge rectifier circuit to rectify the current;
步骤二:桥式整流电路将输入的电流整流后变成直流电并输出至平波电抗器中,并对输入的电流进行稳压;Step 2: The bridge rectifier circuit rectifies the input current into direct current and outputs it to the smoothing reactor, and stabilizes the input current;
步骤三:平波电抗器对输入的电流进行稳压后将其输送至三相桥式逆变电路中,并将电流进行逆变;Step 3: The smoothing reactor stabilizes the input current and then transmits it to the three-phase bridge inverter circuit, and inverts the current;
步骤四:三相桥式逆变电路将逆变后的电流传输至滤波器中并通过滤波器对电源线中特定频率的频点或该频点以外的频率进行有效滤除,得到一个特定频率的电源信号并传输至电力设备中;Step 4: The three-phase bridge inverter circuit transmits the inverted current to the filter and effectively filters the frequency point of a specific frequency in the power line or the frequency other than the frequency point through the filter to obtain a specific frequency the power signal and transmit it to the power equipment;
步骤五:电流电压互感器检测三相桥式逆变电路的输出电流值并将检测到的数值传输至处理器中,处理器将传入的数据进行分析处理;Step 5: The current and voltage transformer detects the output current value of the three-phase bridge inverter circuit and transmits the detected value to the processor, and the processor analyzes and processes the incoming data;
步骤六:处理器将处理后的电流信号等传输至脉冲宽度调制电路中,脉冲宽度调制电路将逆变控制信号传输回三相桥式逆变电路,并在此通过三相桥式逆变电路将逆变后的电流传输至滤波器中并通过滤波器对电源线中特定频率的频点或该频点以外的频率进行有效滤除,得到一个特定频率的电源信号并传输至电力设备中。Step 6: The processor transmits the processed current signal to the pulse width modulation circuit, and the pulse width modulation circuit transmits the inverter control signal back to the three-phase bridge inverter circuit, and passes the three-phase bridge inverter circuit here. The inverted current is transmitted to the filter, and the frequency point of a specific frequency in the power line or the frequency other than the frequency point in the power line is effectively filtered through the filter, and a power signal of a specific frequency is obtained and transmitted to the power equipment.
具体而言,步骤一中的所述电源为电网电源。Specifically, the power source in step 1 is a grid power source.
工作原理:本发明工作时电源将三相交流电输出至桥式整流电路中对电流进行整流工作,桥式整流电路将输入的电流整流后变成直流电并输出至平波电抗器中,并对输入的电流进行稳压,平波电抗器对输入的电流进行稳压后将其输送至三相桥式逆变电路中,并将电流进行逆变,三相桥式逆变电路将逆变后的电流传输至滤波器中并通过滤波器对电源线中特定频率的频点或该频点以外的频率进行有效滤除,得到一个特定频率的电源信号并传输至电力设备中,电流电压互感器检测三相桥式逆变电路的输出电流值并将检测到的数值传输至处理器中,处理器将传入的数据进行分析处理,处理器将处理后的电流信号等传输至脉冲宽度调制电路中,脉冲宽度调制电路将逆变控制信号传输回三相桥式逆变电路,并在此通过三相桥式逆变电路将逆变后的电流传输至滤波器中并通过滤波器对电源线中特定频率的频点或该频点以外的频率进行有效滤除,得到一个特定频率的电源信号并传输至电力设备中。Working principle: when the present invention works, the power supply outputs three-phase alternating current to the bridge rectifier circuit to rectify the current. The bridge rectifier circuit rectifies the input current into direct current and outputs it to the smoothing reactor, and rectifies the input current. The current is stabilized by the smoothing reactor, and the smoothing reactor stabilizes the input current and then transmits it to the three-phase bridge inverter circuit, and inverts the current. The current is transmitted to the filter, and the frequency point of a specific frequency in the power line or the frequency outside the frequency point is effectively filtered through the filter, and a power supply signal of a specific frequency is obtained and transmitted to the power equipment. The current and voltage transformers detect The output current value of the three-phase bridge inverter circuit and the detected value are transmitted to the processor. The processor analyzes and processes the incoming data, and the processor transmits the processed current signal to the pulse width modulation circuit. , the pulse width modulation circuit transmits the inverter control signal back to the three-phase bridge inverter circuit, and the inverter current is transmitted to the filter through the three-phase bridge inverter circuit, and the filter is passed to the power line. The frequency point of a specific frequency or the frequency outside the frequency point is effectively filtered to obtain a power supply signal of a specific frequency and transmit it to the power equipment.
尽管已经示出和描述了本发明的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由所附权利要求及其等同物限定。Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.
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