CN112636347B - An intelligent power filter control system, method and storage medium - Google Patents
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Abstract
Description
技术领域technical field
本发明属于电力控制技术领域，特别涉及一种智能电力滤波控制系统、方法及存储介质。The invention belongs to the technical field of power control, and in particular relates to an intelligent power filter control system, method and storage medium.
背景技术Background technique
在电力系统中，为防止电网波形畸变，谐波需要过滤，功率也需要平衡，不但有有功功率要平衡，无功功率也要平衡，因为在一定的有功功率下，功率因数越小，所需无功功率越大，为满足用电要求，供电线路和变压器的容量就需要增加，这样不仅增加了供电成本，也降低了设备利用率，同时还增加线路损耗，无功功率补偿的主要作用就是提高功率因数，以减少设备容量和功率损耗、稳定电压和提高供电质量。而现有的电网中谐波补偿或无功功率补偿，大部分采用以用电单位或供电所为一个单元的局部电网的补偿，比如：集中补偿、分散补偿、就地补偿，这些传统的补偿方式仅能较好地适应一种情况，无法从全局的角度出发，去统筹协调各层级的谐波补偿和无功功率补偿，也没有建立在较大区域和多个层级的电力滤波控制系统。In the power system, in order to prevent grid waveform distortion, harmonics need to be filtered, and power needs to be balanced. Not only active power should be balanced, but reactive power should also be balanced, because under a certain active power, the smaller the power factor, the more The larger the reactive power is, the capacity of the power supply line and transformer needs to be increased in order to meet the power requirements, which not only increases the power supply cost, but also reduces the equipment utilization rate, and also increases the line loss. The main function of reactive power compensation is to Improve power factor to reduce equipment capacity and power loss, stabilize voltage and improve power supply quality. However, most of the harmonic compensation or reactive power compensation in the existing power grid adopts the compensation of the local power grid with the power consumption unit or the power supply station as a unit, such as: centralized compensation, decentralized compensation, local compensation, these traditional compensation This method can only better adapt to one situation, and cannot coordinate harmonic compensation and reactive power compensation at all levels from a global perspective, and there is no power filter control system established in a large area and multiple levels.
因此，如何针对这些问题，在原有电力滤波补偿功能基础上，将电网和其下属各个层级和线路的状态监测和滤波补偿控制，纳入一个系统中，及时智能的发现需要补偿的具体层级和线路组，通过整体协调地去对电网进行局部补偿、部分补偿或全局补偿，使电网一直处于智能高效净化和稳定供电质量的良好工作状态，已成为现在急需解决的问题。Therefore, how to address these problems, on the basis of the original power filter compensation function, incorporate the state monitoring and filter compensation control of the power grid and its subordinate levels and lines into a system, so as to timely and intelligently discover the specific levels and line groups that need to be compensated , through the overall coordination of local compensation, partial compensation or global compensation to the power grid, so that the power grid has always been in a good working state of intelligent and efficient purification and stable power supply quality, which has become an urgent problem to be solved now.
发明内容SUMMARY OF THE INVENTION
为了解决上述问题，本发明提供了以下技术方案：In order to solve the above problems, the present invention provides the following technical solutions:
一方面，本发明提供了一种智能电力滤波控制系统，包括均与数据运算控制中心连接的总线路状态监测单元、若干个层级的线路状态监测单元、若干个层级的电力滤波补偿单元、显示装置和操作端设备，其中，若干个层级的线路状态监测单元和若干个层级的电力滤波补偿单元一一对应设置相同的层级；层级由上到下所包含区域范围的规律是逐个层级由大到小，上一层级包含下一层级，层级越高包含的范围越大；所述层级的数量和包含范围可根据实际中系统布设的具体情况进行调整，但层级设置的规律不变；In one aspect, the present invention provides an intelligent power filter control system, including a general line state monitoring unit connected to a data operation control center, several levels of line state monitoring units, several levels of power filter compensation units, and a display device and the operation terminal equipment, wherein the line state monitoring units of several levels and the power filter compensation units of several levels are set to the same level one-to-one; , the upper level includes the next level, and the higher the level, the larger the scope; the number and scope of the layers can be adjusted according to the actual situation of the system layout, but the rules of the level setting remain unchanged;
总线路状态监测单元和若干个层级的线路状态监测单元实时监测各自层级的线路状态参数，比如：电压、电流、负载功率、线路功率、频率、功率因数等参数，并将数据传输至数据运算控制中心，经内部设定的控制算法和控制策略的运算分析后，输出控制信号至对应层级的电力滤波补偿单元，控制其对各层级的电网进行滤波和补偿，以净化稳定各层级电网、降低线路损耗和改善供电质量，显示装置和操作端设备分别显示系统数据和操作系统指令。The overall line state monitoring unit and the line state monitoring units of several levels monitor the line state parameters of their respective levels in real time, such as: voltage, current, load power, line power, frequency, power factor and other parameters, and transmit the data to the data operation control The center, after the operation and analysis of the internal set control algorithm and control strategy, outputs the control signal to the power filtering and compensation unit of the corresponding level, and controls it to filter and compensate the power grid at each level, so as to purify and stabilize the power grid at each level and reduce the line Loss and improve the quality of power supply, the display device and the operating terminal equipment respectively display system data and operating system instructions.
进一步的，所述若干个层级的线路状态监测单元和若干个层级的电力滤波补偿单元，，每一层级按需求布置多个线路状态监测单元和多个电力滤波补偿单元，同一层级的线路状态监测单元的监测数据，对应同一层级的电力滤波补偿单元的工作状态和效果；Further, the line state monitoring units of several levels and the power filter compensation units of several levels, each level is arranged with multiple line state monitoring units and multiple power filter compensation units as required, and the line state monitoring units of the same level are arranged. The monitoring data of the unit corresponds to the working state and effect of the power filter compensation unit at the same level;
进一步的，所述若干个层级的线路状态监测单元中各层级的线路状态监测单元，均包括同一层级各组线路中的线路状态监测装置，布设于对应层级中各组线路上，实时监测对应线路的状态参数，以及电力滤波补偿单元的工作状态和效果。Further, the line state monitoring units of each level of the line state monitoring units of the several levels include line state monitoring devices in each group of lines at the same level, and are arranged on each group of lines in the corresponding level to monitor the corresponding lines in real time. state parameters, as well as the working state and effect of the power filter compensation unit.
进一步的，所述若干个层级的电力滤波补偿单元中各层级的电力滤波补偿单元，均包括若干适配的谐波补偿装置和无功功率补偿装置；谐波补偿装置，用于实时监测线路谐波状态并生成补偿电流注入线路中以消除谐波信号，包括与谐波补偿运算单元连接的谐波检测单元和谐波补偿生成单元；无功功率补偿装置用于实时监测线路中的无功功率状态并进行动态补偿，包括与无功补偿运算单元连接的无功检测单元和无功补偿生成单元。Further, the power filter compensation units at each level of the power filter compensation units of the several levels include a number of adaptive harmonic compensation devices and reactive power compensation devices; harmonic compensation devices are used for real-time monitoring of line harmonics. wave state and generate compensation current and inject it into the line to eliminate harmonic signals, including a harmonic detection unit and a harmonic compensation generation unit connected to the harmonic compensation operation unit; the reactive power compensation device is used to monitor the reactive power in the line in real time state and perform dynamic compensation, including a reactive power detection unit and a reactive power compensation generation unit connected with the reactive power compensation operation unit.
进一步的，所述各层级的电力滤波补偿单元，可包括独立的谐波补偿装置和独立的无功功率补偿装置，具体数量和组合方式根据线路安装位置和容量需求确定,也可选择兼有谐波补偿和无功补偿功能的电力滤波器。Further, the power filter compensation units at each level may include independent harmonic compensation devices and independent reactive power compensation devices. The specific number and combination are determined according to the line installation location and capacity requirements, or both harmonics can be selected. Power filter with wave compensation and reactive power compensation functions.
进一步的，各层级之间和同层级单元之间的数据传输，可用有线传输方式或者高可靠性的无线传输方式；可现场控制或者远程控制。Further, the data transmission between each level and between units at the same level can be wired transmission or wireless transmission with high reliability; it can be controlled on site or remotely.
进一步的，系统的控制方法，即所述数据运算控制中心内部设定的控制算法和控制策略，根据各层级的线路状态参数，再结合电力滤波补偿单元的工作状态和效果等信息，进行运算分析，具体的控制模式如下：Further, the control method of the system, that is, the control algorithm and control strategy set in the data operation control center, according to the line state parameters of each level, and then combined with the information such as the working state and effect of the power filter compensation unit, carry out operation analysis. , the specific control mode is as follows:
（1）模式开启条件：(1) Mode enable conditions:
其中，
（2）模式控制算法：(2) Mode control algorithm:
控制算法由系统层级补偿提升率
系统层级补偿提升率
其中，
说明：单位时间，指起止时刻一致的相同长度的时间；系统层级补偿提升率
（3）模式输出修正量控制值：(3) Mode output correction value control value:
其中： 
说明：以上系统中
系统工作原理及模式控制策略：正常工作模式下，电力滤波补偿单元自主正常工作，同时各层级线路状态监测单元实时监测线路状态和电力滤波补偿单元的工作效果，当系统发现监测值满足控制模式开启条件时，系统介入控制，并通过模式控制算法进行分析，然后经过运算输出对应的修正量控制值，进行对应层级和线路间的电力滤波补偿单元的控制，直至满足控制模式介入结束的条件，系统再次进入监测状态。The working principle and mode control strategy of the system: In the normal working mode, the power filter compensation unit works normally and autonomously, and at the same time, the line state monitoring unit at each level monitors the line state and the working effect of the power filter compensation unit in real time. When the system finds that the monitoring value meets the control mode, the When the conditions are met, the system intervenes in the control, and analyzes it through the mode control algorithm, and then outputs the corresponding correction control value through the operation, and controls the power filter compensation unit between the corresponding level and the line until the conditions for the end of the control mode intervention are met, the system Enter the monitoring state again.
另一方面，本发明还提供了一种智能电力滤波控制方法，该方法适用于如上所述的智能电力滤波控制系统中，该方法包括：On the other hand, the present invention also provides an intelligent power filter control method, the method is applicable to the above-mentioned intelligent power filter control system, and the method includes:
各层级电力滤波补偿单元自主正常工作，同时各层级线路状态监测单元实时监测线路状态和电力滤波补偿单元的工作效果；The power filter compensation units at each level work independently and normally, and at the same time, the line state monitoring units at each level monitor the line state and the working effect of the power filter compensation units in real time;
当系统发现监测值满足控制模式开启条件时，系统介入控制，并通过模式控制算法进行分析，然后经过运算输出对应的修正量控制值，进行对应层级和线路间的电力滤波补偿单元的控制；When the system finds that the monitoring value meets the control mode opening condition, the system intervenes in the control, and analyzes it through the mode control algorithm, and then outputs the corresponding correction value control value through the operation, and controls the power filter compensation unit between the corresponding level and the line;
各层级线路状态监测单元继续监测，将新的监测数据传输给系统，系统判断是否达到控制模式介入结束的条件，若未达到，重新运算输出对应的修正量控制值，进行控制；若达到，系统再次进入实时监测状态。The line state monitoring units at each level continue to monitor, transmit new monitoring data to the system, and the system judges whether the conditions for the end of the control mode intervention are met. Enter the real-time monitoring state again.
另外，本发明还提供了一种计算机可读存储介质，其上存储有计算机程序，其特征在于，该程序被处理器执行时实现上述一种智能电力滤波控制方法，该方法步骤如下：In addition, the present invention also provides a computer-readable storage medium on which a computer program is stored, characterized in that, when the program is executed by a processor, the above-mentioned intelligent power filtering control method is implemented, and the method steps are as follows:
（1）开启系统，系统内各部分上电检查，开机检测通过后，进入系统的控制程序；(1) Turn on the system, power on each part of the system to check, and enter the control program of the system after the power-on test is passed;
（2）进入实时监测状态，采集各层级线路状态监测单元实时监测的监测数据，包括线路状态和电力滤波补偿单元的工作效果；(2) Enter the real-time monitoring state, and collect the monitoring data monitored by the line state monitoring units at all levels in real time, including the line state and the working effect of the power filter compensation unit;
（3）根据监测数据判断是否达到控制模式开启条件，若达到，系统介入控制，并通过模式控制算法进行分析，然后经过运算输出对应的修正量控制值，输出至对应层级和线路间的电力滤波补偿单元，对其工作状态进行动态的控制；(3) According to the monitoring data, it is judged whether the control mode turn-on condition is reached. If so, the system intervenes in the control, and analyzes it through the mode control algorithm, and then outputs the corresponding correction control value through the operation, and outputs it to the power filter between the corresponding level and the line Compensation unit to dynamically control its working state;
（4）各层级线路状态监测单元不断监测，并不断将新的监测数据传输给系统，系统判断是否达到控制模式介入结束的条件，若未达到，重新运算输出对应的修正量控制值，进行控制；若达到，系统再次进入实时监测状态。(4) The line status monitoring units at all levels continuously monitor and continuously transmit new monitoring data to the system. The system judges whether the conditions for ending the intervention of the control mode are met. If not, the corresponding correction value control value is re-calculated and output for control. ; If it is reached, the system enters the real-time monitoring state again.
与现有技术相比，本发明有益效果如下：Compared with the prior art, the beneficial effects of the present invention are as follows:
（1）本发明从整体上对电网各层级的线路状态进行监测，运用实时监测和智能控制理论方法，实时监测电网中各层级和线路的供电状态，动态地将所需补偿电流注入到电网中，实现智能滤除谐波，同时还能根据监测数据，对各层级和线路组提供超前或滞后的无功电流，用于改善电网的功率因数和实现动态无功功率补偿；(1) The present invention monitors the line status of each level of the power grid as a whole, uses real-time monitoring and intelligent control theory to monitor the power supply status of each level and line in the power grid in real time, and dynamically injects the required compensation current into the power grid. , to achieve intelligent filtering of harmonics, and at the same time, according to the monitoring data, it can provide leading or lagging reactive current to each level and line group, which is used to improve the power factor of the power grid and realize dynamic reactive power compensation;
（2）在保证整体电网的稳定性前提下，动态跟踪补偿各层级和线路的无功功率，降低了供电的各项投资成本，提高了系统中设备的利用率，同时降低了供电线路的损耗，平衡了电网功率，在整体上提高电网经济运行效率；(2) Under the premise of ensuring the stability of the overall power grid, the reactive power of each level and line is dynamically tracked and compensated, which reduces the investment cost of power supply, improves the utilization rate of equipment in the system, and reduces the loss of power supply lines. , balancing the power of the power grid and improving the economic operation efficiency of the power grid as a whole;
（3）本发明将电网和其下属各个层级和线路，纳入一个整体系统中，建立了各层级的监测网络，并将其中各层级的电力滤波补偿单元进行全局调控，根据监测网络获取的线路监测情况，因为对供电网络进行了分层级分线路组的线路监测和电力滤波补偿单元的控制，所以，能够整体协调地去对电网进行局部补偿、部分补偿或全局补偿，也能及时发现需要补偿的具体层级和线路组，达到智能高效净化电网，稳定电网供电质量的目的；(3) The present invention incorporates the power grid and its subordinate levels and lines into an overall system, establishes a monitoring network at each level, and controls the power filter compensation units at each level globally, and monitors the lines obtained from the monitoring network. In some cases, because the power supply network is subjected to hierarchical line group line monitoring and power filter compensation unit control, it is possible to perform local compensation, partial compensation or global compensation for the power grid in a coordinated manner as a whole, and it is also possible to detect the need for compensation in time. The specific level and line group of the system can achieve the purpose of intelligently and efficiently purifying the power grid and stabilizing the power supply quality of the power grid;
（4）动态监测电网各层级和线路组的供电状态，能够及时发现各种异常或不良状态，是系统控制模式快速介入，控制对应层级和线路组的电力滤波补偿单元进行协同工作，使电网快速恢复到良好工作状态在，系统智能监测，动态响应速度快，实时性高，控制及时；(4) Dynamically monitor the power supply status of each level and line group of the power grid, and can detect various abnormal or bad states in time. It is the rapid intervention of the system control mode, and the power filtering and compensation units of the corresponding level and line group are controlled to work together to make the power grid fast. It is restored to a good working state, the system is intelligently monitored, the dynamic response speed is fast, the real-time performance is high, and the control is timely;
（5）因为实现了全局监测和全局控制，所以，避免了某一层级或某一组线路的电力滤波补偿单元的过度补偿，及其引起的局部电网不平衡，影响电网稳定性和供电质量；(5) Because of the realization of global monitoring and global control, it avoids the overcompensation of the power filter compensation unit of a certain level or a group of lines, and the local power grid imbalance caused by it, which affects the stability of the power grid and the quality of power supply;
（6）由于对电网的全局监测，更真实准确的反映了电网的实际状态，故可以智能精准地及时发现电网中工作异常或工作不良的具体层级或线路组部位，实现对电网的智能监测，监测实时响应快速，异常或不良部位定位精准，发现及时；(6) Due to the global monitoring of the power grid, it reflects the actual state of the power grid more truly and accurately, so it can intelligently and accurately discover the specific level or line group position of abnormal or poor work in the power grid in time, and realize the intelligent monitoring of the power grid. Monitoring real-time response is fast, abnormal or bad parts are accurately located and detected in time;
（7）由于对电网分层级和分线路组的全局动态监测，故可以将监测数据收集并经处理后存入数据库中，保存历史数据的同时，还可通过数据挖掘进行电网状态的趋势分析，实现电力滤波补偿单元科学合理的布局，以免装置布设容量不足等情况发生，做到防患于未然；(7) Due to the global dynamic monitoring of the power grid hierarchy and sub-line group, the monitoring data can be collected and processed and stored in the database. While saving the historical data, the trend analysis of the power grid status can also be carried out through data mining. , to achieve a scientific and reasonable layout of the power filter compensation unit, so as to avoid the occurrence of insufficient installation capacity, so as to prevent problems before they occur;
（8）可采用有线或者无线传输方式，实现现场控制或远程控制；(8) Wired or wireless transmission can be used to realize on-site control or remote control;
（9）本发明可采用主站与从站的的优化结构，还可结合简化方案进一步节省成本，简化系统，在满足完整功能的基础上，使系统在结构上更优化更实用，在成本上更节省，性能上也明显提高。(9) The present invention can adopt the optimized structure of the master station and the slave station, and can combine the simplified scheme to further save costs and simplify the system. On the basis of satisfying the complete functions, the system can be more optimized and more practical in structure. More economical and significantly improved performance.
附图说明Description of drawings
为了易于说明，本发明由下述的具体实施及附图作以详细描述。For ease of description, the present invention is described in detail by the following specific implementations and accompanying drawings.
图1为本发明的系统结构示意图；Fig. 1 is the system structure schematic diagram of the present invention;
图2为本发明的电力滤波补偿单元结构示意图；2 is a schematic structural diagram of a power filter compensation unit of the present invention;
图3为本发明实施例中典型3个层级的布设结构示意图；3 is a schematic diagram of the layout structure of typical three levels in an embodiment of the present invention;
图4为本发明实施例中典型3个层级的系统结构示意图；4 is a schematic diagram of a typical three-level system structure in an embodiment of the present invention;
图5为本发明的控制流程示意图。FIG. 5 is a schematic diagram of a control flow 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付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 drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, 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.
实施例1Example 1
结合图1所示，在一个具体的实施例中，本发明的方法可以以一种智能电力滤波控制系统方式实现，该系统包括均与数据运算控制中心连接的总线路状态监测单元、若干个层级的线路状态监测单元、若干个层级的电力滤波补偿单元、显示装置和操作端设备，其中，若干个层级的线路状态监测单元和若干个层级的电力滤波补偿单元一一对应设置相同的层级；层级由上到下所包含区域范围的规律是逐个层级由大到小，上一层级包含下一层级，层级越高包含的范围越大；所述层级的数量和包含范围可根据实际中系统布设的具体情况进行调整，但层级设置的规律不变；1, in a specific embodiment, the method of the present invention can be implemented in the form of an intelligent power filter control system, the system includes a general line state monitoring unit connected with a data operation control center, several levels The line state monitoring unit, the power filter compensation unit of several levels, the display device and the operation terminal equipment, wherein, the line state monitoring unit of several levels and the power filter compensation unit of several levels are set to the same level in one-to-one correspondence; The rule of the area covered from top to bottom is that each level is from large to small, the upper level contains the next level, and the higher the level, the larger the range; the number and range of the levels can be based on the actual system layout. The specific situation can be adjusted, but the law of level setting remains unchanged;
总线路状态监测单元和若干个层级的线路状态监测单元实时监测各自层级的线路状态参数，比如：电压、电流、负载功率、线路功率、频率、功率因数等参数，并将数据传输至数据运算控制中心，经内部设定的控制算法和控制策略的运算分析后，输出控制信号至对应层级的电力滤波补偿单元，控制其对各层级的电网进行滤波和补偿，以净化稳定各层级电网、降低线路损耗和改善供电质量，显示装置和操作端设备分别显示系统数据和操作系统指令。The overall line state monitoring unit and the line state monitoring units of several levels monitor the line state parameters of their respective levels in real time, such as: voltage, current, load power, line power, frequency, power factor and other parameters, and transmit the data to the data operation control The center, after the operation and analysis of the internal set control algorithm and control strategy, outputs the control signal to the power filtering and compensation unit of the corresponding level, and controls it to filter and compensate the power grid at each level, so as to purify and stabilize the power grid at each level and reduce the line Loss and improve the quality of power supply, the display device and the operating terminal equipment respectively display system data and operating system instructions.
所述若干个层级的线路状态监测单元和若干个层级的电力滤波补偿单元，每一层级按需求布置多个线路状态监测单元和多个电力滤波补偿单元，同一层级的线路状态监测单元的监测数据，对应同一层级的电力滤波补偿单元的工作状态和效果；The line state monitoring units of several levels and the power filter compensation units of several levels, each level is arranged with multiple line state monitoring units and multiple power filter compensation units as required, and the monitoring data of the line state monitoring units of the same level , corresponding to the working state and effect of the power filter compensation unit of the same level;
所述若干个层级的线路状态监测单元中各层级的线路状态监测单元，均包括同一层级各组线路中的线路状态监测装置，布设于对应层级中各组线路上，实时监测对应线路的状态参数，以及电力滤波补偿单元的工作状态和效果。The line state monitoring units of each level of the line state monitoring units of the several levels include line state monitoring devices in each group of lines at the same level, and are arranged on each group of lines in the corresponding level to monitor the state parameters of the corresponding lines in real time. , and the working state and effect of the power filter compensation unit.
如图2所示，所述若干个层级的电力滤波补偿单元中各层级的电力滤波补偿单元，均包括若干适配的谐波补偿装置和无功功率补偿装置；谐波补偿装置，用于实时监测线路谐波状态并生成补偿电流注入线路中以消除谐波信号，包括与谐波补偿运算单元连接的谐波检测单元和谐波补偿生成单元；无功功率补偿装置用于实时监测线路中的无功功率状态并进行动态补偿，包括与无功补偿运算单元连接的无功检测单元和无功补偿生成单元。As shown in FIG. 2 , the power filter compensation units at each level of the power filter compensation units of the several levels include a number of adaptive harmonic compensation devices and reactive power compensation devices; the harmonic compensation devices are used for real-time Monitor the harmonic state of the line and generate compensation current to inject into the line to eliminate harmonic signals, including a harmonic detection unit and a harmonic compensation generation unit connected to the harmonic compensation calculation unit; the reactive power compensation device is used for real-time monitoring of the harmonics in the line. The reactive power state and dynamic compensation are performed, including a reactive power detection unit and a reactive power compensation generation unit connected with the reactive power compensation operation unit.
所述各层级的电力滤波补偿单元，可包括独立的谐波补偿装置和独立的无功功率补偿装置，具体数量和组合方式根据线路安装位置和容量需求确定,也可选择兼有谐波补偿和无功补偿功能的电力滤波器。The power filter compensation units at each level may include independent harmonic compensation devices and independent reactive power compensation devices. The specific number and combination are determined according to the line installation location and capacity requirements, and both harmonic compensation and Power filter with reactive power compensation function.
所述各层级之间和同层级单元之间的数据传输，可用有线传输方式或者高可靠性的无线传输方式；可现场控制或者远程控制。The data transmission between the various levels and between the units at the same level can be performed by wired transmission or wireless transmission with high reliability; it can be controlled on-site or remotely.
实施例2Example 2
结合图1所示，在一个具体的实施例中，本发明的方法可以以一种智能电力滤波控制系统方式实现，该系统包括均与数据运算控制中心连接的总线路状态监测单元、若干个层级的线路状态监测单元、若干个层级的电力滤波补偿单元、显示装置和操作端设备，其中，若干个层级的线路状态监测单元和若干个层级的电力滤波补偿单元一一对应设置相同的层级；层级由上到下所包含区域范围的规律是逐个层级由大到小，上一层级包含下一层级，层级越高包含的范围越大；所述层级的数量和包含范围可根据实际中系统布设的具体情况进行调整，但层级设置的规律不变；1, in a specific embodiment, the method of the present invention can be implemented in the form of an intelligent power filter control system, the system includes a general line state monitoring unit connected with a data operation control center, several levels The line state monitoring unit, the power filter compensation unit of several levels, the display device and the operation terminal equipment, wherein, the line state monitoring unit of several levels and the power filter compensation unit of several levels are set to the same level in one-to-one correspondence; The rule of the area covered from top to bottom is that each level is from large to small, the upper level contains the next level, and the higher the level, the larger the range; the number and range of the levels can be based on the actual system layout. The specific situation can be adjusted, but the law of level setting remains unchanged;
总线路状态监测单元和若干个层级的线路状态监测单元实时监测各自层级的线路状态参数，比如：电压、电流、负载功率、线路功率、频率、功率因数等参数，并将数据传输至数据运算控制中心，经内部设定的控制算法和控制策略的运算分析后，输出控制信号至对应层级的电力滤波补偿单元，控制其对各层级的电网进行滤波和补偿，以净化稳定各层级电网、降低线路损耗和改善供电质量，显示装置和操作端设备分别显示系统数据和操作系统指令。The overall line state monitoring unit and the line state monitoring units of several levels monitor the line state parameters of their respective levels in real time, such as: voltage, current, load power, line power, frequency, power factor and other parameters, and transmit the data to the data operation control The center, after the operation and analysis of the internal set control algorithm and control strategy, outputs the control signal to the power filtering and compensation unit of the corresponding level, and controls it to filter and compensate the power grid at each level, so as to purify and stabilize the power grid at each level and reduce the line Loss and improve the quality of power supply, the display device and the operating terminal equipment respectively display system data and operating system instructions.
所述若干个层级的线路状态监测单元和若干个层级的电力滤波补偿单元，每一层级按需求布置多个线路状态监测单元和多个电力滤波补偿单元，同一层级的线路状态监测单元的监测数据，对应同一层级的电力滤波补偿单元的工作状态和效果；The line state monitoring units of several levels and the power filter compensation units of several levels, each level is arranged with multiple line state monitoring units and multiple power filter compensation units as required, and the monitoring data of the line state monitoring units of the same level , corresponding to the working state and effect of the power filter compensation unit of the same level;
所述若干个层级的线路状态监测单元中各层级的线路状态监测单元，均包括同一层级各组线路中的线路状态监测装置，布设于对应层级中各组线路上，实时监测对应线路的状态参数，以及电力滤波补偿单元的工作状态和效果。The line state monitoring units of each level of the line state monitoring units of the several levels include line state monitoring devices in each group of lines at the same level, and are arranged on each group of lines in the corresponding level to monitor the state parameters of the corresponding lines in real time. , and the working state and effect of the power filter compensation unit.
如图2所示，所述若干个层级的电力滤波补偿单元中各层级的电力滤波补偿单元，均包括若干适配的谐波补偿装置和无功功率补偿装置；谐波补偿装置，用于实时监测线路谐波状态并生成补偿电流注入线路中以消除谐波信号，包括与谐波补偿运算单元连接的谐波检测单元和谐波补偿生成单元；无功功率补偿装置用于实时监测线路中的无功功率状态并进行动态补偿，包括与无功补偿运算单元连接的无功检测单元和无功补偿生成单元。As shown in FIG. 2 , the power filter compensation units at each level of the power filter compensation units of the several levels include a number of adaptive harmonic compensation devices and reactive power compensation devices; the harmonic compensation devices are used for real-time Monitor the harmonic state of the line and generate compensation current to inject into the line to eliminate harmonic signals, including a harmonic detection unit and a harmonic compensation generation unit connected to the harmonic compensation calculation unit; the reactive power compensation device is used for real-time monitoring of the harmonics in the line. The reactive power state and dynamic compensation are performed, including a reactive power detection unit and a reactive power compensation generation unit connected with the reactive power compensation operation unit.
所述各层级的电力滤波补偿单元，可包括独立的谐波补偿装置和独立的无功功率补偿装置，具体数量和组合方式根据线路安装位置和容量需求确定,也可选择兼有谐波补偿和无功补偿功能的电力滤波器。The power filter compensation units at each level may include independent harmonic compensation devices and independent reactive power compensation devices. The specific number and combination are determined according to the line installation location and capacity requirements, and both harmonic compensation and Power filter with reactive power compensation function.
所述各层级之间和同层级单元之间的数据传输，可用有线传输方式或者高可靠性的无线传输方式；可现场控制或者远程控制。The data transmission between the various levels and between the units at the same level can be performed by wired transmission or wireless transmission with high reliability; it can be controlled on-site or remotely.
所述系统的控制方法，即数据运算控制中心内部设定的控制算法和控制策略，根据各层级的线路状态参数，再结合电力滤波补偿单元的工作状态和效果等信息，进行运算分析，具体的控制模式如下：The control method of the system, that is, the control algorithm and control strategy set in the data operation control center, is carried out according to the line state parameters of each level, combined with the information such as the working state and effect of the power filter compensation unit, and the specific operation analysis is carried out. The control mode is as follows:
（1）模式开启条件：(1) Mode enable conditions:
其中，
（2）模式控制算法：(2) Mode control algorithm:
控制算法由系统层级补偿提升率
系统层级补偿提升率
其中，
说明：单位时间，指起止时刻一致的相同长度的时间；系统层级补偿提升率
（3）模式输出修正量控制值：(3) Mode output correction value control value:
其中： 
说明：以上系统中
系统工作原理及模式控制策略：正常工作模式下，电力滤波补偿单元自主正常工作，同时各层级线路状态监测单元实时监测线路状态和电力滤波补偿单元的工作效果，当系统发现监测值满足控制模式开启条件时，系统介入控制，并通过模式控制算法进行分析，然后经过运算输出对应的修正量控制值，进行对应层级和线路间的电力滤波补偿单元的控制，直至满足控制模式介入结束的条件，系统再次进入监测状态。The working principle and mode control strategy of the system: In the normal working mode, the power filter compensation unit works normally and autonomously, and at the same time, the line state monitoring unit at each level monitors the line state and the working effect of the power filter compensation unit in real time. When the system finds that the monitoring value meets the control mode, the When the conditions are met, the system intervenes in the control, and analyzes it through the mode control algorithm, and then outputs the corresponding correction control value through the operation, and controls the power filter compensation unit between the corresponding level and the line until the conditions for the end of the control mode intervention are met, the system Enter the monitoring state again.
适用于如上所述的智能电力滤波控制系统中的控制方法，如图5所示，该方法包括：The control method applicable to the above-mentioned intelligent power filter control system, as shown in Figure 5, includes:
各层级电力滤波补偿单元自主正常工作，同时各层级线路状态监测单元实时监测线路状态和电力滤波补偿单元的工作效果；The power filter compensation units at each level work independently and normally, and at the same time, the line state monitoring units at each level monitor the line state and the working effect of the power filter compensation units in real time;
当系统发现监测值满足控制模式开启条件时，系统介入控制，并通过模式控制算法进行分析，然后经过运算输出对应的修正量控制值，进行对应层级和线路间的电力滤波补偿单元的控制；When the system finds that the monitoring value meets the control mode opening condition, the system intervenes in the control, and analyzes it through the mode control algorithm, and then outputs the corresponding correction value control value through the operation, and controls the power filter compensation unit between the corresponding level and the line;
各层级线路状态监测单元继续监测，将新的监测数据传输给系统，系统判断是否达到控制模式介入结束的条件，若未达到，重新运算输出对应的修正量控制值，进行控制；若达到，系统再次进入实时监测状态。The line state monitoring units at each level continue to monitor, transmit new monitoring data to the system, and the system judges whether the conditions for the end of the control mode intervention are met. Enter the real-time monitoring state again.
另外，一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现上述智能电力滤波控制系统功能和方法的步骤如下：In addition, a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the steps of implementing the functions and methods of the above-mentioned intelligent power filter control system are as follows:
（1）开启系统，系统内各部分上电检查，开机检测通过后，进入系统的控制程序；(1) Turn on the system, power on each part of the system to check, and enter the control program of the system after the power-on test is passed;
（2）进入实时监测状态，采集各层级线路状态监测单元实时监测的监测数据，包括线路状态和电力滤波补偿单元的工作效果；(2) Enter the real-time monitoring state, and collect the monitoring data monitored by the line state monitoring units at all levels in real time, including the line state and the working effect of the power filter compensation unit;
（3）根据监测数据判断是否达到控制模式开启条件，若达到，系统介入控制，并通过模式控制算法进行分析，然后经过运算输出对应的修正量控制值，输出至对应层级和线路间的电力滤波补偿单元，对其工作状态进行动态的控制；(3) According to the monitoring data, it is judged whether the control mode turn-on condition is reached. If so, the system intervenes in the control, and analyzes it through the mode control algorithm, and then outputs the corresponding correction control value through the operation, and outputs it to the power filter between the corresponding level and the line Compensation unit to dynamically control its working state;
（4）各层级线路状态监测单元不断监测，并不断将新的监测数据传输给系统，系统判断是否达到控制模式介入结束的条件，若未达到，重新运算输出对应的修正量控制值，进行控制；若达到，系统再次进入实时监测状态。(4) The line status monitoring units at all levels continuously monitor and continuously transmit new monitoring data to the system. The system judges whether the conditions for ending the intervention of the control mode are met. If not, the corresponding correction value control value is re-calculated and output for control. ; If it is reached, the system enters the real-time monitoring state again.
实施例3Example 3
在实施例1或2的基础上，举例典型3个层级的系统结构、层级布设原则，具体如下：On the basis of Embodiment 1 or 2, an example of a typical three-level system structure and hierarchical layout principles are as follows:
系统结构如图3所示：包括均与数据运输控制中心连接的总线路状态单元、1层级线路状态单元、2层级线路状态单元、3层级线路状态单元、1层级谐波补偿装置、1层级无功功率补偿装置、2层级谐波补偿装置、2层级无功功率补偿装置、3层级谐波补偿装置、3层级无功功率补偿装置、显示装置和操作端设备；The system structure is shown in Figure 3: it includes a total line status unit, a 1-level line status unit, a 2-level line status unit, a 3-level line status unit, a 1-level harmonic compensation device, and a 1-level without Power compensation device, 2-level harmonic compensation device, 2-level reactive power compensation device, 3-level harmonic compensation device, 3-level reactive power compensation device, display device and operation terminal equipment;
系统层级布设原则如图4所示，具体如下：The principle of system level layout is shown in Figure 4, and the details are as follows:
（1）1层级布设于电网下包括的地区总线或地方总变电站母线上；(1) Level 1 is arranged on the regional bus or the bus of the local general substation included under the power grid;
（2）2层级布设于用电单位总线或总变电站下的变配电所母线上；(2) The 2-level layout is arranged on the bus of the power consumption unit or the bus of the substation under the main substation;
（3）3层级布设于用电单位内需要谐波补偿或无功功率补偿的车间或大型用电设备上；(3) The 3-level is arranged on the workshop or large-scale electrical equipment that needs harmonic compensation or reactive power compensation in the electricity unit;
实施例中三个层级的布设原则可以适应多个规模级别的电网进行合理部署，但控制模式、控制算法及控制策略均与实施例1和2中描述的一致，原则不变；当然，设置每一层级电力滤波补偿单元的时候，原则上是在需要的地方单独设置，供控制系统全局、局部或单独调配。The layout principle of the three levels in the embodiment can be adapted to the power grids of multiple scale levels for reasonable deployment, but the control mode, control algorithm and control strategy are consistent with those described in Embodiments 1 and 2, and the principle remains unchanged; When the one-level power filter compensation unit is used, in principle, it is set up separately where it is needed for the control system to be globally, locally or individually deployed.
其他部分相关内容也与实施例1或2中描述的一致，此处不在赘述。Other relevant contents are also consistent with those described in Embodiment 1 or 2, and are not repeated here.
实时例4Real time example 4
本实施例为在实施例1或实施例2的标准方案基础上进行的简化方案，目的在于减少系统零部件数量、减小系统体积、步骤和进一步降低配套成本。This embodiment is a simplified solution based on the standard solution of Embodiment 1 or Embodiment 2, and aims to reduce the number of system components, reduce system volume, steps, and further reduce supporting costs.
主要简化方案如下：The main simplification scheme is as follows:
方案1：若滤波补偿装置或无功功率补偿装置内的监测单元满足系统监测要求和数据精度要求，各层级线路状态监测单元，可采用其监测数据，节省系统成本，减少系统零部件数量，简化安装；Option 1: If the monitoring unit in the filter compensation device or reactive power compensation device meets the system monitoring requirements and data accuracy requirements, the monitoring data of the line state monitoring units at all levels can be used to save system costs, reduce the number of system components, and simplify Install;
方案2：为使系统集成化程度进一步提高，可采用同时具备谐波补偿和无功功率补偿功能的装置，比如有源电力滤波补偿器，满足系统需求和功能即可；Option 2: In order to further improve the degree of system integration, a device with both harmonic compensation and reactive power compensation functions, such as an active power filter compensator, can be used to meet the system requirements and functions;
方案3：系统中各组成部分涉及数据I/O的部分，可以在满足要求的前提下，尽量采用自带AD转换器和DA转换器的处理芯片或集成电路板，这样可以省去模拟数据和数字数据之间的频繁转换，不管输入的是模拟型还是数字型数据，均可直接处理并使用，减少零件数量体积，同时提高系统响应速度；Option 3: For the part of the system involving data I/O, the processing chip or integrated circuit board with its own AD converter and DA converter can be used as much as possible under the premise of meeting the requirements, which can save the analog data and Frequent conversion between digital data, regardless of whether the input is analog or digital, can be directly processed and used, reducing the number and volume of parts and improving system response speed;
其他部分仍然采用实施例1或2的方案，以上多个简化方案，可单独使用，也可多种方案组合使用。Other parts still use the solutions of Embodiment 1 or 2. The above simplified solutions can be used alone or in combination.
实施例5Example 5
本实施例为在实施例1或实施例2方案的基础上进行的优化方案，目的在于进一步优化系统结构和实用性。This embodiment is an optimization scheme based on the scheme of Embodiment 1 or Embodiment 2, and the purpose is to further optimize the system structure and practicability.
具体优化方案为：将实施例1或2中的总线路状态监测单元和数据运输控制中心作为一个主站，同一层级的线路状态监测单元和电力滤波补偿单元单独与一个控制器连接，作为一个从站，从站和主站数据连接，然后形成主站和多个从站的结构进行统一控制，从站为主站提供监测数据，接受主站的控制指令，主站作为总控制单元，从站作为下级单独控制单元，这样不仅减轻了主站的数据运算量，而且从站进行初步数据处理后在传输至主站，也使主站的运算更快速，提高了系统整体响应速度，同时，此结构从站也可单独控制，若只是某个从站需要调整，可不经过主站即可单独控制，同样提高响应速度；以上优化后的结构，还可与实施例4中的简化方案相结合，在满足完整功能的基础上，使系统在结构上更优化更实用，在成本上更节省，性能上也明显提高。The specific optimization plan is as follows: the general line state monitoring unit and the data transportation control center in Embodiment 1 or 2 are used as a master station, and the line state monitoring unit and the power filter compensation unit at the same level are connected to a controller separately, as a slave Station, slave station and master station data connection, and then form the structure of master station and multiple slave stations for unified control, the slave station provides monitoring data to the master station, accepts the control instructions of the master station, the master station acts as the total control unit, the slave station As a lower-level independent control unit, this not only reduces the data calculation amount of the master station, but also makes the master station's operation faster and improves the overall response speed of the system after the slave station performs preliminary data processing and transmits it to the master station. The structure slave station can also be controlled independently. If only a certain slave station needs to be adjusted, it can be controlled independently without the master station, which can also improve the response speed; the above optimized structure can also be combined with the simplified scheme in Example 4. On the basis of satisfying the complete functions, the system is more optimized and more practical in structure, more economical in cost, and significantly improved in performance.
与现有技术相比，本发明有益效果如下：Compared with the prior art, the beneficial effects of the present invention are as follows:
（1）本发明从整体上对电网各层级的线路状态进行监测，运用实时监测和智能控制理论方法，实时监测电网中各层级和线路的供电状态，动态地将所需补偿电流注入到电网中，实现智能滤除谐波，同时还能根据监测数据，对各层级和线路组提供超前或滞后的无功电流，用于改善电网的功率因数和实现动态无功功率补偿；(1) The present invention monitors the line status of each level of the power grid as a whole, uses real-time monitoring and intelligent control theory to monitor the power supply status of each level and line in the power grid in real time, and dynamically injects the required compensation current into the power grid. , to achieve intelligent filtering of harmonics, and at the same time, according to the monitoring data, it can provide leading or lagging reactive current to each level and line group, which is used to improve the power factor of the power grid and realize dynamic reactive power compensation;
（2）在保证整体电网的稳定性前提下，动态跟踪补偿各层级和线路的无功功率，降低了供电的各项投资成本，提高了系统中设备的利用率，同时降低了供电线路的损耗，平衡了电网功率，在整体上提高电网经济运行效率；(2) Under the premise of ensuring the stability of the overall power grid, the reactive power of each level and line is dynamically tracked and compensated, which reduces the investment cost of power supply, improves the utilization rate of equipment in the system, and reduces the loss of power supply lines. , balancing the power of the power grid and improving the economic operation efficiency of the power grid as a whole;
（3）本发明将电网和其下属各个层级和线路，纳入一个整体系统中，建立了各层级的监测网络，并将其中各层级的电力滤波补偿单元进行全局调控，根据监测网络获取的线路监测情况，因为对供电网络进行了分层级分线路组的线路监测和电力滤波补偿单元的控制，所以，能够整体协调地去对电网进行局部补偿、部分补偿或全局补偿，也能及时发现需要补偿的具体层级和线路组，达到智能高效净化电网，稳定电网供电质量的目的；(3) The present invention incorporates the power grid and its subordinate levels and lines into an overall system, establishes a monitoring network at each level, and controls the power filter compensation units at each level globally, and monitors the lines obtained from the monitoring network. In some cases, because the power supply network is subjected to hierarchical line group line monitoring and power filter compensation unit control, it is possible to perform local compensation, partial compensation or global compensation for the power grid in a coordinated manner as a whole, and it is also possible to detect the need for compensation in time. The specific level and line group of the system can achieve the purpose of intelligently and efficiently purifying the power grid and stabilizing the power supply quality of the power grid;
（4）动态监测电网各层级和线路组的供电状态，能够及时发现各种异常或不良状态，是系统控制模式快速介入，控制对应层级和线路组的电力滤波补偿单元进行协同工作，使电网快速恢复到良好工作状态在，系统智能监测，动态响应速度快，实时性高，控制及时；(4) Dynamically monitor the power supply status of each level and line group of the power grid, and can detect various abnormal or bad states in time. It is the rapid intervention of the system control mode, and the power filtering and compensation units of the corresponding level and line group are controlled to work together to make the power grid fast. It is restored to a good working state, the system is intelligently monitored, the dynamic response speed is fast, the real-time performance is high, and the control is timely;
（5）因为实现了全局监测和全局控制，所以，避免了某一层级或某一组线路的电力滤波补偿单元的过度补偿，及其引起的局部电网不平衡，影响电网稳定性和供电质量；(5) Because of the realization of global monitoring and global control, it avoids the overcompensation of the power filter compensation unit of a certain level or a group of lines, and the local power grid imbalance caused by it, which affects the stability of the power grid and the quality of power supply;
（6）由于对电网的全局监测，更真实准确的反映了电网的实际状态，故可以智能精准地及时发现电网中工作异常或工作不良的具体层级或线路组部位，实现对电网的智能监测，监测实时响应快速，异常或不良部位定位精准，发现及时；(6) Due to the global monitoring of the power grid, it reflects the actual state of the power grid more truly and accurately, so it can intelligently and accurately discover the specific level or line group position of abnormal or poor work in the power grid in time, and realize the intelligent monitoring of the power grid. Monitoring real-time response is fast, abnormal or bad parts are accurately located and detected in time;
（7）由于对电网分层级和分线路组的全局动态监测，故可以将监测数据收集并经处理后存入数据库中，保存历史数据的同时，还可通过数据挖掘进行电网状态的趋势分析，实现电力滤波补偿单元科学合理的布局，以免装置布设容量不足等情况发生，做到防患于未然；(7) Due to the global dynamic monitoring of the power grid hierarchy and sub-line group, the monitoring data can be collected and processed and stored in the database. While saving the historical data, the trend analysis of the power grid status can also be carried out through data mining. , to achieve a scientific and reasonable layout of the power filter compensation unit, so as to avoid the occurrence of insufficient installation capacity, so as to prevent problems before they occur;
（8）可采用有线或者无线传输方式，实现现场控制或远程控制；(8) Wired or wireless transmission can be used to realize on-site control or remote control;
（9）本发明可采用主站与从站的优化结构，还可结合简化方案进一步节省成本，简化系统，在满足完整功能的基础上，使系统在结构上更优化更实用，在成本上更节省，性能上也明显提高。(9) The present invention can adopt the optimized structure of the master station and the slave station, and can combine the simplified scheme to further save costs and simplify the system. On the basis of satisfying the complete functions, the system can be more optimized and more practical in structure and more cost-effective. Savings, performance is also significantly improved.
最后应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明实施例技术方案的精神和范围。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be The technical solutions described in the foregoing embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions in the embodiments of the present invention.
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