阅读说明：本技术 一种综合能源的能效监测系统 (Energy efficiency monitoring system of comprehensive energy ) 是由 周银锋 雷炳银 王子驰 孙荣智 侯葵 苏雨晴 孙炜哲 徐立军 刘健 于 2021-09-03 设计创作，主要内容包括：本发明涉及一种综合能源的能效监测系统,属于能效监测技术领域。能效监测系统包括：若干组数据采集单元,每组均包括若干电气量传感器和若干非电气量传感器,用于采集相应的数据；若干分布式单元,各分布式单元通信连接对应的一组数据采集单元；中央处理单元,各分布式单元均与中央处理单元进行通信连接,中央处理单元对接收的数据进行能效和用电状态分析,并进行输出；云平台,云平台与中央处理单元通信连接,接收并存储中央处理单元输出的数据。本发明这种分布式采集系统通过将数据采集传感器和分布式单元进行科学合理的布设,全面覆盖各个采集区域,进而将各个区域的数据进行监测,实现了各小型局域电力系统的能效的整体监测。(The invention relates to an energy efficiency monitoring system of comprehensive energy, and belongs to the technical field of energy efficiency monitoring. The energy efficiency monitoring system comprises: the system comprises a plurality of groups of data acquisition units, a plurality of data acquisition units and a plurality of control units, wherein each group of data acquisition units comprises a plurality of electric quantity sensors and a plurality of non-electric quantity sensors and is used for acquiring corresponding data; each distributed unit is in communication connection with a corresponding group of data acquisition units; the central processing unit is in communication connection with each distributed unit, and analyzes and outputs the energy efficiency and the power utilization state of the received data; and the cloud platform is in communication connection with the central processing unit, and receives and stores data output by the central processing unit. According to the distributed acquisition system, the data acquisition sensors and the distributed units are scientifically and reasonably arranged to comprehensively cover all acquisition areas, so that data of all areas are monitored, and the integral monitoring of the energy efficiency of all small local power systems is realized.)

1. An energy efficiency monitoring system for an integrated energy source, comprising:

the system comprises a plurality of groups of data acquisition units, a plurality of data acquisition units and a control unit, wherein each group of data acquisition units comprises a plurality of electric quantity sensors and a plurality of non-electric quantity sensors and is used for acquiring electric data and non-electric data of electric equipment;

each distributed unit is in communication connection with a corresponding group of data acquisition units, and each group of data acquisition units sends acquired data to the corresponding distributed unit; the distributed unit receives the acquired data, performs harmonic analysis on the acquired data, and outputs a harmonic analysis result and the acquired data;

the central processing unit receives data output by each distributed unit according to a distributed data acquisition algorithm, analyzes the energy efficiency and the power utilization state of the received data, and outputs the data after the energy efficiency and power utilization state analysis and the received data through a routing forwarding algorithm;

and the cloud platform is in communication connection with the central processing unit, and receives and stores data output by the central processing unit.

2. The energy efficiency monitoring system of an integrated energy resource of claim 1, wherein the distributed data collection algorithm is a MySQL distributed data collection algorithm.

3. The energy efficiency monitoring system of an integrated energy source of claim 1, wherein the route forwarding algorithm is an EQGOR forwarding algorithm.

4. The energy efficiency monitoring system of the integrated energy source of claim 1, wherein the data acquisition unit is in communication connection with the distributed unit by wireless communication.

5. The energy efficiency monitoring system according to claim 4, wherein the wireless communication means includes Zigbee wireless communication, LARA wireless communication, and WIFI wireless communication.

6. The energy efficiency monitoring system according to claim 1, wherein the distributed units are connected to the central processing unit by wireless communication.

7. The energy efficiency monitoring system according to claim 6, wherein the wireless communication means includes Zigbee wireless communication, LARA wireless communication, and WIFI wireless communication.

8. The energy efficiency monitoring system of the integrated energy source of claim 1, wherein the central processing unit is in communication connection with the cloud platform by means of wireless communication.

9. The energy efficiency monitoring system according to claim 8, wherein the wireless communication is 4G or NB-IoT.

10. The energy efficiency monitoring system of the comprehensive energy source according to claim 5 or 7, wherein the networking mode of Zigbee wireless communication is star wireless networking, tree wireless networking or mesh wireless networking.

Technical Field

The invention relates to an energy efficiency monitoring system of comprehensive energy, and belongs to the technical field of energy efficiency monitoring.

Background

Electric energy is the most important terminal consumption energy, and plays a great role in improving energy efficiency. At present, electricity utilization efficiency of electric power customers in China is low, the phenomenon of electric energy waste exists in a large quantity, meanwhile, the difference of power utilization peaks and valleys is increased continuously, the utilization efficiency of power generation and supply equipment is low, and the power saving potential is huge. In order to optimize the power utilization mode, improve the power utilization efficiency of the terminal, change the mode that the power utilization is increased by expanding the power plant and the power grid, further promote energy conservation and emission reduction and reduce environmental pollution, and establish an energy efficiency public service platform and a carrier for supporting energy conservation service. The energy efficiency public service platform provides energy-saving service for society, and the core task is to realize the collection, processing, storage and analysis of mass energy efficiency data information and provide specialized energy-saving guidance for users through energy-saving evaluation and energy efficiency optimization mathematical models and algorithms. The method has the advantages that the method realizes the integrated management and control of energy efficiency management, orderly power utilization management and the like of various units such as society, users, power grids and the like, realizes the collection and monitoring of energy efficiency information of residential users, commercial users, industrial users and the like at the cloud, diagnoses and analyzes the energy efficiency parameters such as voltage and current waveforms, load conditions of various phases, power factors, power quality, power grid loss and the like of the users, synthesizes weather and environment, electricity price excitation, distributed power generation, harmonic wave filtering, power factor compensation, alternative energy and other modes, helps the power users to provide energy-saving evaluation and energy efficiency optimization guidance, and improves the energy utilization efficiency of the users.

The energy efficiency monitoring can be divided into large-area energy efficiency monitoring and small-area power system energy efficiency monitoring according to the area size classification of the energy efficiency monitoring. The former monitoring range is a relatively large power system, emphasizes data and resource integration, research objects are broad and different types of power loads, such as characteristics and regulation characteristics of power loads in industry, agriculture, commercial finance and the like, and the latter monitoring range is a small local power system, such as used in the fields of transformer yards, industrial parks, commercial or public buildings, industrial enterprises, residential quarters and the like, and the monitoring objects are specific to the electric quantity of a single power load. The energy efficiency monitoring of the small local power system is the basis of the load monitoring of the large power grid.

Therefore, a technical solution for integrally monitoring the energy efficiency of each small local power system is needed.

Disclosure of Invention

The utility model aims to provide an efficiency monitoring system of comprehensive energy, carry out the integral monitoring for the efficiency of each small-size local electric power system and provide an effective technical scheme.

In order to achieve the above object, the present application provides a technical solution of an energy efficiency monitoring system for integrated energy, wherein the energy efficiency monitoring system includes:

the system comprises a plurality of groups of data acquisition units, a plurality of data acquisition units and a control unit, wherein each group of data acquisition units comprises a plurality of electric quantity sensors and a plurality of non-electric quantity sensors and is used for acquiring electric data and non-electric data of electric equipment;

each distributed unit is in communication connection with a corresponding group of data acquisition units, and each group of data acquisition units sends acquired data to the corresponding distributed unit; the distributed unit receives the acquired data, performs harmonic analysis on the acquired data, and outputs a harmonic analysis result and the acquired data;

the central processing unit receives data output by each distributed unit according to a distributed data acquisition algorithm, analyzes the energy efficiency and the power utilization state of the received data, and outputs the data after the energy efficiency and power utilization state analysis and the received data through a routing forwarding algorithm;

and the cloud platform is in communication connection with the central processing unit, and receives and stores data output by the central processing unit.

The technical scheme of the energy efficiency monitoring system of the comprehensive energy source has the beneficial effects that: according to the invention, a distributed data acquisition system is adopted to acquire the electric quantity data and the non-electric quantity data of the electric equipment, the data of each sensor is firstly sent to a distributed unit, the distributed unit collects the data and then sends the data to a central processing unit, the central processing unit analyzes the energy efficiency and the electricity utilization state, and finally all the data are uploaded to a cloud for storage. According to the distributed acquisition system, the data acquisition sensors and the distributed units are scientifically and reasonably arranged to comprehensively cover all acquisition areas, so that data of all the areas are monitored, and the overall monitoring of the energy efficiency of each small local power system is realized.

Further, the distributed data acquisition algorithm is a MySQL distributed data acquisition algorithm.

Further, the route forwarding algorithm is an EQGOR forwarding algorithm.

Furthermore, the data acquisition unit is in communication connection with the distributed unit in a wireless communication mode.

Further, the wireless communication modes include Zigbee wireless communication, LARA wireless communication, and WIFI wireless communication.

Further, the distributed unit is connected with the central processing unit in a wireless communication mode.

Further, the wireless communication modes include Zigbee wireless communication, LARA wireless communication, and WIFI wireless communication.

Further, the central processing unit is in communication connection with the cloud platform in a wireless communication mode.

Further, the wireless communication mode is 4G or NB-IoT.

Further, the networking mode of the Zigbee wireless communication is star wireless networking, tree wireless networking, or mesh wireless networking.

Drawings

FIG. 1 is a block diagram of an energy efficiency monitoring system of the integrated energy source of the present invention;

FIG. 2 is a schematic diagram of Zigbee star wireless networking according to the present invention;

fig. 3 is a schematic diagram of Zigbee tree wireless networking according to the present invention;

fig. 4 is a schematic diagram of Zigbee mesh wireless networking according to the present invention.

Detailed Description

The embodiment of the energy efficiency monitoring system of the comprehensive energy source comprises the following steps:

the invention has the main concept that for the integral monitoring of the energy efficiency of each small local power system, a distributed data acquisition system is adopted to acquire the electric quantity data and the non-electric quantity data of the electric equipment, and then the energy efficiency and the electricity utilization state are analyzed through a central processing unit.

Specifically, the energy efficiency monitoring system of the integrated energy source is shown in fig. 1, and includes: the system comprises a plurality of data acquisition units, a plurality of distributed units, a central processing unit and a cloud platform, wherein the functional functions and the connection relationship among the units are as follows:

each group of data acquisition units comprises a plurality of electric quantity sensors and a plurality of non-electric quantity sensors and is used for acquiring electric data and non-electric data of electric equipment;

each distributed unit is in communication connection with a corresponding group of data acquisition units through Zigbee wireless communication, LARA wireless communication and WIFI wireless communication modes (the priority levels of the three communication modes are 1.Zigbee wireless communication, 2.LARA wireless communication and 3.WIFI wireless communication in sequence), and each group of data acquisition units sends acquired electrical data and non-electrical data to the corresponding distributed unit; the distributed unit receives the acquired data (namely the acquired data), performs harmonic analysis on the acquired data, and outputs a harmonic analysis result and the acquired data;

each distributed unit is in communication connection with a central processing unit through Zigbee wireless communication, LARA wireless communication and WIFI wireless communication modes (the priority levels of the three communication modes are 1.Zigbee wireless communication, 2.LARA wireless communication and 3.WIFI wireless communication in sequence), the central processing unit receives data output by each distributed unit according to a MySQL distributed data acquisition algorithm, performs energy efficiency and power utilization state analysis on the received data, and outputs the data after the energy efficiency and power utilization state analysis and the received data through an EQGOR forwarding algorithm; the EQGOR forwarding algorithm is a Routing forwarding algorithm, is a WSN (wireless sensor network) geographical Opportunistic Routing Energy Balanced and QoS guaranteed Geographic Routing optimal protocol, converts the optimization problem of a forwarding node set which gives consideration to Energy and QoS into a multi-target optimization problem, adopts a self-adaptive forwarding set optimization algorithm of multi-target particle swarm to find the most existing solution set, realizes QoS performance guarantee and prolongs network life time;

and the cloud platform is in communication connection with the central processing unit in a 4G wireless communication mode, and receives and stores data output by the central processing unit. The stored data of the cloud platform may facilitate other device queries, such as: client or web page, etc.

The Zigbee wireless communication has various networking modes, and may be a star wireless networking shown in fig. 2, a tree wireless networking shown in fig. 3, or a mesh wireless networking shown in fig. 4.

The Zigbee star network belongs to a simplest network topology structure in the Zigbee network, and includes a Coordinator (i.e., a central node), a plurality of routers (routers), and terminals (End-devices, i.e., attached nodes). In the structure network, each auxiliary node can only communicate with the central node, and if communication between the two auxiliary nodes is needed, data forwarding must be carried out through the central node.

The ZigBee tree network comprises a Coordinator (Coordinator), a plurality of routers (Router) and terminals (End-devices). The ZigBee tree network can be regarded as a plurality of star networks, and each tree weight branch (router with nodes) can be regarded as a central node of the star network. In a tree network, a coordinator builds the whole network, and a router serves as a junction point to spread the network outwards in a tree. The nodes form multi-hop communication through the intermediate routers.

In the ZigBee mesh network, besides all functions of the ZigBee tree network, a communication relation also exists between adjacent routers, so that the dynamic distribution of the network is more flexible, the routing capability is more stable and reliable, and the self-organization advantage of the ZigBee network can be fully exerted.

In the above embodiment, in order to meet the implementation of wireless communication in different environments, the distributed unit and the data acquisition unit, and the distributed unit and the central processing unit are in communication connection in three ways, and as another embodiment, a wireless communication way of Zigbee, LARA, or WIFI, or a wired communication way may also be separately used for communication connection, which is not limited in this invention.

In the above embodiment, the cloud platform and the central processing unit are connected by 4G wireless communication, as another embodiment, NB-IoT communication may be adopted for communication, which is not limited in the present invention.

The distributed unit has the following advantages:

(1) the system supports non-invasive installation, does not need breakpoints, is completely maintenance-free, adopts a self-powered mode, and has high precision, wireless communication and quasi-real-time data transmission; the system supports multi-energy access, supports various communication modes, is flexible in self-networking, realizes automatic diagnosis and optimized regulation and control of an energy system by utilizing strategies, provides information system support for comprehensive energy construction, and meets the construction requirement of large-range distribution of the power internet of things.

(2) The power consumption is low, 2 batteries and 5 thousand batteries can support 1 node to work for 6-24 months or even longer in a low power consumption standby mode, a large amount of energy can be consumed for communication for a wireless device, and the energy consumption of the terminal is high according to the use scene of the terminal; low cost, reduced requirements for the communications controller by greatly simplifying the protocol (1/10 for less than bluetooth), a fully functional master node requiring 32KB of code and a sub-functional node as little as 4KB of code, measured with an 8-bit 8051 microcontroller.

(3) The ZigBee works at the rate of 20-250kbps, the original data throughput rates of 250kbps (2.4GHz), 40kbps (915MHz) and 20kbps (868MHz) are respectively provided, and the application requirement of low-rate transmission data is met; long distance transmission, typically ranging between 10-100m, can also be increased to 1-3km after increasing the transmit power, which means the distance between adjacent nodes, which can be further if relayed by route and inter-node communication.

(4) Short time delay, the ZigBee response speed is high, generally, the sleep state is changed into the working state for only 15ms, the node is connected into the network for only 30ms, the electric energy is further saved, and compared with the Bluetooth for 3-10s and the WiFi for 3s, the ZigBee for the node is provided with a power supply for supplying power for the power supply; the ZigBee can adopt star, sheet and mesh network structures, one main node manages thousands of sub-nodes, at most one main node can manage 254 sub-nodes, and meanwhile, the main node can be managed by the network node of the previous layer, and a large network with 65000 nodes can be formed at most.

(5) The ZigBee provides a three-level security mode, including no security setting, using an access control list, preventing illegal data acquisition and adopting a symmetric password of an advanced encryption standard to flexibly determine the security attribute of the ZigBee.

In the embodiment of the invention, based on the principle of hardware platform and software APP, an edge computing intelligent gateway, heterogeneous cross-domain network interconnection and intercommunication, adaptation and conversion of a multi-standard communication protocol, real-time sensing of an access node and equipment self-management of the access node, and an intelligent Internet of things gateway software APP based on edge computing and cloud cooperation of the Internet of things technology are respectively used for designing and developing intelligent gateway hardware, structures and software and trial-making equipment, the intelligent gateway based on edge computing is designed, data acquisition, data cleaning, edge computing, energy efficiency analysis, cloud interaction and remote control of sensing units in an area are realized, and energy efficiency data acquisition, energy efficiency data forwarding and edge energy efficiency analysis and calculation can be realized.