Estimation method of hotel electricity load

The estimation method of hotel electricity load is as follows:

1. Empirical formula calculation method (the number and rated capacity of electrical equipment are known): demand coefficient method-for engineering calculation with a large number of equipment but little difference in capacity, binomial method-for engineering calculation with a large difference in equipment capacity, coefficient method-for calculating load with average load, using probability and mathematical statistics methods.

2. Power consumption index method (known building function, unknown number and rated capacity of electrical equipment): load density method-unit capacity method, unit index method and residential power consumption index method.

Load is a technical term of human society, which refers to the external resistance overcome by machines or initiative machines, the requirements for the business ability of a system (such as circuit switching stations, postal services, railways), and the weight borne by objects. Expand to the proportion of resources occupied.

Power load refers to the sum of the electric energy taken from the power system by the electric equipment of the electric energy users at a certain moment.

Extended data:

Characteristics of power load composition:

Power system load can generally be divided into urban civil load, commercial load, rural load, industrial load and other loads, and different types of loads have different characteristics and laws.

1, the urban civil load is mainly household appliances of urban residents, which has an increasing trend year by year and obvious seasonal fluctuation. The characteristics of civil load are closely related to the daily life and work rules of residents.

2. Commercial load mainly refers to lighting, air conditioning, power and other electricity loads. In the commercial field with large area and steady growth of electricity consumption, the commercial load also has the characteristics of seasonal fluctuation. Although the proportion of commercial load in power load is smaller than that of industrial load and civil load, the lighting load in commercial load occupies the peak period of power system.

3. Industrial load refers to the electricity used in industrial production, and the proportion of general industrial load ranks first in the composition of electricity consumption. It not only depends on the working mode of industrial users (including equipment utilization rate, work shift system of enterprises, etc.). ), but also closely related to the industry characteristics, seasonal changes and economic crisis of various industries, and the general load is relatively constant.

4. Rural load refers to the electricity consumption of rural residents and agricultural production. It is greatly influenced by natural conditions such as climate and season, which is determined by the characteristics of agricultural production. Agricultural electricity load is also affected by crop species and farming habits, but as far as the power grid is concerned, because the time of agricultural electricity load concentration is different from the peak time of urban industrial load, it is beneficial to improve the power grid load rate.

From the above analysis, we can see that the characteristics of power load are constantly changing, not only by hour and day, but also by week and year. At the same time, the load fluctuates constantly in days, with great periodicity, and the load change is a continuous process, so there is generally no big jump.

However, the power load is sensitive to season, temperature and weather, and climate and temperature changes in different seasons and regions will have obvious effects on the load. The characteristics of power load determine that the total power load consists of the following four parts: basic normal load component, weather-sensitive load component, special event load component and random load component.

References:

Baidu Encyclopedia-Power Load