As night falls, the beautiful lighting and dynamic effects make Wanda Plaza the center of the night city, but a large number of lamps also mean higher energy consumption and operating costs. In recent years, Wanda Plaza has won numerous awards for green building design logo and green building operation logo. The control and energy saving of night lighting as an important part of green lighting has been highly valued by the group leaders.
With the promulgation and implementation of the "Wanda Plaza Intelligent Cloud Management System Design and Acceptance Standards", the intelligent control of night lighting has embarked on a new level. In the standard, the lighting circuits are divided into seven categories according to the lighting effect parts of the architectural lighting fixtures. According to the operational requirements of different time periods, the seven types of loops are flexibly combined to open and close to form different scenarios. Some scenes are full of vitality, creating a bustling commercial atmosphere; some scenes open some of the luminaires to effectively control energy consumption; some scenes only highlight the top of the building, emphasizing the landmarks of the building. The opening and closing state table of the Wanda Plaza building lighting circuit is as follows:
Symbol Description: â— means turn on the lights, other spaces are off lights.
Description of lighting effects:
A—architectural lighting, architectural outline lighting; B—facade advertising light box, shop recruiting;
C1—large commercial candle facade lighting 1/2; C2—large commercial candle facade lighting 2/2;
D1—large commercial podium facade luminaire; D2—large commercial podium façade floodlighting;
D3 - entertainment channel (entry).
Opening time description:
T2—15 minutes after sunset to the store closed for 3 hours;
T3—The store is closed to the big singer, the cinema line, and the big players are closed for 4 hours.
T4 - Big singer, KTV, big players closed until sunrise, 4.5 hours.
Operating mode grading instructions:
M1 - usual, 250 days / year; M2 - weekend, 104 days / year;
M3 - Major festivals and celebrations, 11 days / year.
It can be seen from the above intelligent lighting control mode that only the T2 time lamps of the weekend and major festivals are all turned on during the year, and the lamps of the T2 time period are partially turned on during the weekdays, and few lamps are turned on during the T3 and T4 periods. According to the three modes that have been determined and the three time periods in each mode, it not only meets the commercial atmosphere requirements of different time periods, but also effectively saves energy consumption.
At present, most of the lamps used in Wanda Plaza are LED products, which can be adjusted by computer programming to adjust the gray level of the light-emitting chip. The full-color LED lamps realize full color change through the mixed light of different gray levels of red, green and blue chips. The lower the gray level, the smaller the actual power consumption, and the higher the gray level, the closer it is to the rated power. When the LED luminaire changes dynamically, the luminaire will not work for a long period of time at full power. The test data provided by the luminaire manufacturer shows that the average power of the LED luminaire under dynamic operation does not exceed 50% of the rated power. If you reduce the brightness of the overall dynamic operation, you can reduce the average operating power, which is another way to save energy. From the design angle of the upper wall animation to improve the color contrast, improve the dynamic contrast, while reducing the overall brightness can not reduce the overall effect, and effectively save energy. The experience value of different luminaire manufacturers is to reduce the average operating power to between 30% and 40% of the rated power, and still ensure the normal operation and picture integrity of the luminaire.
Figure 1 Schematic diagram of a night lighting circuit list and status display of a project
Taking a Wanda Plaza project as an example, the use of intelligent control and dynamic control methods can effectively limit the total power consumption of Wanda Plaza night lighting.
Figure 2 Total energy consumption statistics table for night lighting
What needs to be explained in the statistical table is that the B-type circuit is the power supply circuit for the facade advertising light box and the shop. Although it is included in the unified control system, the advertising light box and store are leased by the commercial management company and metered separately. Therefore, the installation power of the B-type circuit is not included in the calculation of the total power consumption of the night lighting.
According to the daily power consumption and annual electricity consumption in the table, the daily power consumption is about 1.6 hours at full power on weekdays, and 2.2 hours at full power on weekends. The daily power consumption is about full power. Run for 3.3 hours. The average annual average is equivalent to 1.8 hours of full power per day.
Refine the intelligent control mode of night lighting, subdivide control loop and turn-on time, deepen the dynamic control of LED system, and strengthen the programming of LED lighting, which can meet the needs of night lighting environment of commercial plaza, and create the lighting effect of 璀璨It can effectively limit the overall operating energy consumption of night lighting and save the operating cost of night lighting. As a result, Wanda Plaza will truly realize the industry-leading green and smart night lighting on the basis of efficient operation and become a model for the industry.Electric Meters Battery,6V Lithium Battery,Electricity Meter Battery,Lithium Battery Meter
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