Application of power demand side management and intelligent power monitoring technology in the coking industry's peak-to-peak power-limited power demand side management and intelligent power monitoring technology in the application of peak-to-peak pow

Second, second, the industry users participate in the peak-to-peak power-capacity analysis industry users participate in the peak-to-peak capacity analysis 1. The industry's electricity load is large and continuous load is not affected by time, season, climate. 2. Emergency peak power limit can quickly disable office equipment such as office, lighting, computer fax machines, etc. At night, you can stop the lighting equipment in the factory area and stop some auxiliary production equipment, such as: refrigeration Units, air conditioners, boilers, but without prejudice to safety. Weak emergency peak capacity, purification and recovery equipment: such as horizontal tube primary cooler, electric tar catcher, cyclone tar catcher, ammonia washing tower, benzene washing tower, desulfurization tower and other important (high risk) power load, not suitable for rapid participation Avoid the peak. 3. The staged peaks of users in this industry can be carried out by arranging centralized maintenance and production reduction. For example, centralized maintenance is required, and only maintenance equipment such as workshop lighting, accident lighting, and maintenance lighting is reserved. Generally, maintenance of about 1000 kW is reserved. The load can be used; if the production mode is discontinued, the coking equipment and the auxiliary system can be gradually stopped to reduce the production load and achieve the peak effect. Third, third, industry users participate in the peak-to-peak power-limiting technology program industry users participate in the peak-to-peak power-limited technology program (1) Gap level IV-level participation program 1. Staged peak: On the premise of ensuring safety, at 8:00~ 22:00 Stop the coke oven for smoldering treatment, reduce the output, and achieve the peak effect. 2. Emergency peak 1) After receiving the peak error command, it is necessary to quickly input the limit load, and then gradually release the load according to the instruction to resume normal production. 2) Prioritize the peaks of the air conditioning system, office and lighting system, and then gradually release the load according to the instructions. (ii) Gap Level III Participation Programme

2. Emergency peak 1) After receiving the peak error command, it is necessary to quickly input the limit load, and then gradually release the load according to the instruction to resume normal production.

2) On the basis of the implementation of the III-level plan, quickly stop all machining equipment, coal handling system equipment to meet the peak requirements, and then gradually release the load according to the instructions.

(4) Gap level I participation program 1. Staged peak: Considering the large power gap, the company can arrange maintenance throughout the plant, and only retain the power load required to repair the equipment.

2. Emergency peak 1) After receiving the peak error command, it is necessary to quickly input the limit load, and then gradually release the load according to the instruction to resume normal production.

2) Considering the safety of production in the industry and the difficulty of restoring production, no additional production equipment will be added to the implementation of the Level II program. Then gradually release the load according to the instructions.
IV. IV. Industry users participate in the peak-to-peak power-limiting risks and precautions. Industry users participate in the peak-to-peak power-limiting risks and precautions 1. The furnace body, fire-fighting parts in the production areas of the production enterprises in the industry encounter sudden power outages, which may easily lead to gas explosion. Leakage, resulting in environmental pollution, can lead to poisoning accidents or large economic losses. It is recommended to use centralized production and centralized maintenance to complete the production tasks in this month ahead of time, and the remaining days at the end of the month to avoid peaks or annual maintenance. 2. From a safety point of view, such as purification product recycling workshop (gas purification), if a sudden power outage occurs, it will lead to a major accident. The reason: the gas coming out of the coke oven reaches 82 °C. If the power is cut off, the fan is shut down, the gas overflows, and Personal injuries and deaths such as explosions and poisoning. For coke ovens, if the power is cut off, the coke oven will be scrapped, and the same gas may explode. Therefore, users in this industry should formulate effective contingency plans as soon as possible. When participating in peaks, they should actively cooperate with the implementation of peaks, communicate with power supply companies in a timely manner, and adopt maintenance or rotation, etc., to avoid forced power or remote control equipment to limit power consumption. A vicious accident occurs, taking the initiative to take social responsibility while minimizing losses.
5, 5, the function and application of intelligent power monitoring Intelligent power monitoring functions and applications 5.15.1 Project Overview Project Overview Uttam Steel in India is rich in coal in Wardha (Wardha area) in Maharashtra With iron ore resources and convenient transportation, there are roads and railways to build a pig iron plant with an annual output of 500,000 tons. The supporting projects include a sintering plant and a 500,000 tons coking plant. The entire project is expected to invest 11 billion rupees (228 million). US$) The construction of the 500,000-ton coking plant includes production facilities such as coal preparation workshops, coking workshops, gas purification workshops, and supporting public auxiliary facilities. As an energy supply area for other plants, power distribution safety is particularly important, and requirements are also more High, in the power control must be required to be safe, reliable and fast, relying on manual on-site control can not meet the actual requirements of the project. Encore Electric Co., Ltd. was commissioned by Shanghai Delixi Co., Ltd. to construct and debug the intelligent power system on the site of the coking plant in India. It mainly completed the centralized monitoring of the 6.6KV power distribution system and 0.4KV power distribution system in the coking plant to ensure coking. The power supply system of the plant is operating normally.

As shown in Figure 2, the 0.4KV system A topology diagram mainly monitors the three-phase current, voltage, and electrical parameters in the pump house.

Ankerui Electric Co., Ltd. is equipped with PZ42-E4 power meter according to customer's demand. The power meter can measure three-phase current, three-phase voltage, active power, reactive power, power factor, power, etc. , embedded installation method; fully meet the requirements of customers, and easy to install, cost-effective.

As shown in Figure 3, the 0.4KV system B topology diagram mainly monitors the motor power parameters of the coal preparation workshop and the coking workshop.

The user mainly looks at the three-phase electric current, voltage, electric energy and other electrical parameters of the motor, as well as checking the running state of the motor and modifying the fixed value.

According to the customer's needs, Ankerui Electric Co., Ltd. also supplies the power meter with PZ42-E4 power meter to collect on-site electrical parameters (with motor protection device on the motor protection circuit)

5.3 5.3 System Function System Function (a) (a) User Rights Management User Rights Management Set different permissions for different levels of users to prevent losses caused by human error in production and life, and to achieve the safety of the power distribution system. Reliable operation. User management allows user login, user logout, password modification, and deletion to facilitate user modification of accounts and permissions.

User rights management is particularly important in this project, because in the 6.6KV system, all comprehensive protection on the site should be controlled. The high-privilege setting guarantees the standardity of on-site operation, and has the operation ticket setting and standardization. The order of remote control of the high voltage cabinet.
(b) (b) System system 6.6KV6.6KV main interface main interface

With friendly man-machine interface, in the main interface of 0.4KV system A and 0.4KV system B, log in to ordinary users, you can check the electric parameters of the on-site pump house and 2 running transformers, which is convenient for customers to view various electrical parameters of the circuit. Including: current, voltage, electricity, etc.

(d) (d) system remote signal status alarm system remote signal status alarm

The system provides an analysis interface for the real-time curve and the historical trend curve, and analyzes the current load operation status of the circuit by calling the relevant loop real-time curve interface. For example, by calling a real-time curve of a distribution loop, the signal fluctuation caused by the electrical equipment of the loop can be analyzed. The historical trend of the system is that the system can view the historical trend of all stored data, which is convenient for engineers to analyze the quality of the monitored distribution network. (f) (f) Statistics of statements and statements