What are the components of an intelligent power distribution system?

The intelligent power distribution system is connected by the switch with intelligent components with communication functions through digital communication and computer system network connection to realize the automation and intelligence of the operation and management of substation switchgear. The system can realize real-time data collection, digital communication, remote operation and program control, protection value management, event recording and alarm, fault analysis, various reports and equipment maintenance information management and other functions. In view of the characteristics of the electrical system directly facing the control terminal, many equipment, wide distribution, and complex site conditions, the system itself and the frequent operation of the equipment, fault tripping, etc., the intelligent monitoring system should be able to realize the object-oriented operation mode, with strong anti-interference ability, and the main control function is completed by the intelligent components of the equipment layer, forming a network-integrated fully distributed control system to meet the real-time, fast and reliable requirements of system operation.

The intelligent components in the system can be generally divided into power quality monitoring, switch protection and control, and motor protection and control in terms of their functions. Due to the application of fieldbus technology, the intelligent components in the system can operate independently without relying on the computer network, which greatly improves the real-time and reliability of the system operation, and meets the needs of electrical equipment operation management and the requirements of factory production process control!

The distribution side management system independently developed and produced by Kangpai Intelligent can improve the reliability of electricity consumption, improve power quality and optimize power assets, reduce the energy cost of enterprises and sustainable development, and play an important role in the intelligent power distribution system!

The main components of the intelligent power distribution system are:

Secure cloud tables. LRT201-S temperature detector.

RTU201 IoT information collection terminal.

LDU series wireless data transmission terminals.

RFID device electronic identifiers.

Intelligent inspection terminal.

The user-side intelligent distribution monitoring system is suitable for the monitoring and control management of the operation status of the user-side power supply and distribution system at the 35kV voltage level in various industries, providing uninterrupted protection, monitoring and control of the user's power distribution network and electrical equipment, improving the reliability of the user's power supply, improving the automation level of the user's power supply and distribution system, and realizing reliable, safe and efficient power distribution and consumption.

It mainly refers to transformers, reactors, electric containers, combined electrical appliances, circuit breakers, transformers, lightning arresters, coupling capacitors, transmission lines, power cables, grounding devices, generators, condensers, motors, closed busbars, thyristors, etc. The distribution box is a primary device in the electrical equipment. Electrical equipment includes primary and secondary equipment.

Primary equipment is mainly power generation, substation, transmission, distribution, electricity and other trillions of direct generation, transmission, consumption of electric energy equipment, such as generators, transformers, overhead lines, distribution cabinets, switch cabinets and so on.

1. The power supply and distribution system is composed of: high and low voltage distribution lines, substations (including distribution stations) and electrical equipment.

2. High and low voltage distribution lines: lines that send power from the step-down substation to the distribution transformer or the power from the distribution substation to the power consumption unit. The voltage of the distribution line is called the high-voltage distribution line; The distribution voltage does not exceed 1kV, the frequency does not exceed 1000Hz, and the DC does not exceed 1500V, which is called a low-voltage distribution line.

The construction of distribution lines requires safety and reliability, maintaining the continuity of power supply, reducing line losses, improving transmission efficiency, and ensuring good power quality.

3. Substation: a place where voltage and current are transformed, electric energy is accepted and distributed in the power system. The substation in the power plant is a step-up substation, and its role is to feed the power generated by the generator to the high-voltage power grid after the boost.

The electrical equipment in the substation is divided into primary equipment and secondary equipment. Primary equipment refers to equipment that directly produces, transmits, distributes and uses electric energy, and secondary equipment refers to equipment that measures, monitors, controls and protects the operating conditions of primary equipment and systems.

Distribution grids. Automation refers to the use of computer information technology, network technology, communication technology and other advanced science and technology to collect and analyze various operating data of the distribution network system, and monitor, protect, control and manage the distribution network equipment, so as to ensure the stable operation of the distribution network. The distribution network automation system is composed of several parts, such as the system management layer, the network communication layer, and the field equipment layer, which are analyzed separately below.

Cloud@ Intelligent Distribution Management System - System Management Layer.

The cloud@intelligent power distribution management system independently developed and produced by Kangpai Intelligent can display and process the data and measurement and control signals collected at the equipment layer in real time. The operation interface of the system is simple and intuitive, which truly realizes the docking between users and monitoring equipment. The system management layer consists of cloud@intelligent power distribution management system, medium and low voltage intelligent power distribution management system software, monitoring host, printer and UPS uninterruptible power supply.

and so on. Single-host system: A client-server application.

Multi-host system: One server with multiple client applications.

Fiber optic cables, fiber optic transceivers.

and other different equipment.

Cloud@Intelligent Power Distribution Management System - Field Device Layer.

The on-site monitoring layer equipment is the remote terminal equipment (RTU), which is used for data measurement, display, control and communication of on-site monitoring signals. The equipment layer is composed of various intelligent power meters, microcomputer protection and other third-party intelligent devices required by the medium and low voltage distribution monitoring center.

SCADA = supervisory control and data acquisition. The SCADA system is a computer-based DCS, which is a decentralized control system. It is the most widely used in the power system, and the technology development is also the most mature.

It can monitor and control the operating equipment on site to realize various functions such as data acquisition, equipment control, measurement, parameter adjustment and various signal alarms, that is, we know it"Si Yao"Function. RTU (Remote Terminal Unit) and FTU (Feeder Terminal Unit) are an important part of it, which plays a very important role in the construction of integrated automation of today's substation

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System operation monitoring and control.

Power quality monitoring and analysis.

Power factor monitoring and control.

High-precision energy metering.

Statistics and analysis of electrical energy consumption.

Preventive electrical fire surveillance.

Alarm and event management.

Report management. User management.

At the same time, the Zepower system has good openness, which can easily communicate with other systems and intelligent devices, such as DCS system, building system, etc.

In China, the power distribution system can be divided into high-voltage distribution system, medium-voltage distribution system and low-voltage distribution system.

As the last link of the power distribution system is directly oriented to the end user, its perfection and old sales are directly related to the reliability and quality of electricity consumption of the majority of users, so it has an important position in the electro-hydraulic recreation system.

The voltage level of China's distribution system, according to the provisions of the "Guidelines for Urban Power Grid Planning and Design", 220kV and above voltage is the transmission system KV is the high-voltage distribution system KV is the medium-voltage distribution system V is the low-voltage distribution system.