Photovoltaic power station energy management system

Nanjing Swo Electric provides technical support for 189 Tao 5244 and 6334,SE2000 Energy Management SystemIt refers to business systems and intelligent devices based on computer and network technology used for monitoring and controlling the process of power production and supply, as well as communication and data networks as the basic support. Simply put, the power monitoring system includes the monitoring system of the power plant, the monitoring system of the power grid dispatch, and the monitoring system of the distribution. The power monitoring system specifically includes power data acquisition and monitoring system, substation automation system, power plant computer monitoring system, distribution automation system, microcomputer relay protection and safety automatic device, wide area phasor measurement system, load control system, water regulation automation system and water elevator level dispatch automation system, electric energy metering system, auxiliary control system for real-time power market, power dispatch data network, etc.

Friendly Human Machine Interaction Interface (HMI)

The standard transformer and distribution system has a CAD single line diagram to display the wiring status of the medium and low voltage distribution network; The massive system has the functions of multi screen switching and screen navigation; The dispersed power distribution system has a system main screen with a spatial geographic plane. The main screen can intuitively display the operating status of each circuit, and has the function of coloring the live, non live, and fault states of the circuit. The main electrical parameters are directly displayed on the human-computer interaction interface and refreshed in real time.

User Management

The intelligent power monitoring system software can grant different permissions to users of different levels, thereby ensuring the safety and reliability of the system during operation. For the closing/opening operation of a certain important circuit, in addition to the operator level user entering the operation password, the engineer level user also needs to enter the confirmation password to complete the operation.

Data collection and processing

The intelligent power monitoring system can real-time and timed collect various electrical parameters and switch status of on-site equipment (including three-phase voltage, current, power, power factor, frequency, electrical energy, temperature, switch position, equipment operating status, etc.), display the collected data directly or generate new intuitive data information through statistical calculation and display it again (total system power, load value, power factor upper and lower limits, etc.), and store important information in the database.

Design Principles

1. Practicality of the system.SE2000 Energy Management SystemThe composition and actual situation of the system must conform to the actual situation of on-site power distribution, and the practicality of the system is the design principle that should be followed first. It should have good learnability and operability, so that management personnel with basic computer operation skills can master the operating essentials of the system through simple training and achieve the operational level to complete duty tasks.

2. System security. The load level of large comprehensive hospitals is mostly level one load, and system safety is particularly important. All equipment and accessories in the system should not only operate safely and reliably, but also comply with relevant Chinese or international safety standards.

3. Real time performance of the system. The electrical parameters in the power system are constantly changing, and factors such as overload and imbalance can cause significant damage to distribution equipment. The occurrence of these factors is accidental, so the real-time requirements for the system are crucial. It should not only be able to achieve real-time monitoring, but also have recording and storage functions.

According to the fruitHome appliances are uselessAccording to the company's statistics, there are over 2 million industrial and commercial users with power supply voltage levels of 10kV and above. The property rights of such "user side substations" belong to the power users (industrial and commercial enterprises, residential communities, schools, hospitals, etc.). Although there are many of them, the daily operation and maintenance work is relatively traditional, and there are generally the following pain points: low operation and maintenance efficiency, slow response, non-standard operation and maintenance processes, difficult supervision of inspection processes, lack of equipment file management, and lack of analysis of operation big data. Based on market demand feedback, Nanjing Swao Electric provides online operation and maintenance service platform for power operation and maintenance enterprises by using Internet and big data technology, monitors the power consumption of all substations in a real-time and centralized manner, uniformly schedules the operation and maintenance patrol arrangement, and links online and offline; Centralize and unify the management of substations widely distributed within enterprise groups/higher education institutions, improve operation and maintenance efficiency, and enhance fault response speed; Provide electricity collection and reading services for electricity sales enterprises, instantly grasp users' electricity consumption situation, and avoid deviation assessment; Responding to the policy of ubiquitous power Internet of Things, increasing customer stickiness, and preparing for the development of value-added services in the later stage.