Method for calculating power consumption according to millisecond frequency instantaneous power data of ammeter

Abstract

The invention relates to the technical field of power consumption, in particular to a method for calculating power consumption according to millisecond frequency instantaneous power data of an electric meter, which comprises the following steps: collecting all millisecond-level instantaneous power data P (t) within any time interval, calculating the time interval and the time interval delta t of millisecond-level data, and calculating energy consumption at each time point. And accumulating the energy consumption at all time points, and converting the total energy consumption into power consumption. According to the method, the power consumption at any time interval can be accurately calculated by depending on the millisecond-level instantaneous power data, accurate analysis and management of the power consumption are facilitated, the power use efficiency and the management level are improved, and support and basis can be provided for follow-up quality regulation energy consumption analysis and equipment efficiency analysis.

Description

Technical Field

[0001] The present invention relates to the technical field of electric energy consumption, and in particular to a method for calculating electric consumption based on millisecond frequency instantaneous power data of an electric meter. Background Art

[0002] In the process of electricity use and management, accurate calculation of electricity consumption is of great significance for the rational allocation of energy, cost accounting, and the formulation of energy-saving measures. With the development of electricity meter technology, it is possible to obtain instantaneous power data with millisecond frequency, which makes it possible to calculate electricity consumption more accurately. However, there is currently a lack of systematic and detailed methods for how to use these millisecond-level instantaneous power data to accurately calculate electricity consumption at any time interval. By searching relevant materials, it was found that most of the existing electricity consumption calculation methods are based on relatively rough data such as average power, which cannot fully utilize the high-precision advantages of millisecond-frequency instantaneous power data and are difficult to meet the demand for accurate calculation of electricity consumption. Based on this, the present invention proposes a method for calculating electricity consumption based on millisecond-frequency instantaneous power data of an electricity meter. Summary of the Invention

[0003] The present invention aims to solve the above technical problems, overcome the shortcomings of the prior art, and provide a method for calculating power consumption based on millisecond frequency instantaneous power data of an electric meter.

[0004] The method for calculating power consumption based on millisecond frequency instantaneous power data of the electric meter in this solution specifically includes the following steps:

[0005] S1. Collect all millisecond instantaneous power data P(t) within any time interval, where t is the time point;

[0006] S2. Calculate the time interval. The time interval Δt of millisecond-level data is Where t1 is the end time timestamp in seconds, t2 is the start time timestamp in seconds, and N is the data volume;

[0007] S3. Calculate the energy consumption at each time point using the formula E(t) = P(t) × Δt;

[0008] S4. Accumulate the energy consumption at all time points, the formula is Where N is the amount of data,

[0009] S5. Convert the total energy consumption into electricity consumption using the formula:

[0010] Furthermore, all millisecond-level instantaneous power data P(t) within any time interval are collected to ensure the accuracy and completeness of the data, covering every millisecond time point within the time interval.

[0011] Furthermore, when calculating the energy consumption E(t)=P(t)×Δt at each time point in S3 , the unit of the instantaneous power P(t) is watt, and the unit of the time interval Δt is second.

[0012] Furthermore, the energy consumption at all time points is accumulated During the process, each E(t) must be accurately added.

[0013] Furthermore, the total energy consumption is converted into electricity consumption, and the total energy consumption E total The unit is joule.

[0014] The beneficial effects of the present invention are:

[0015] The method of the present invention for calculating power consumption based on the millisecond-frequency instantaneous power data of the electric meter can accurately calculate the power consumption at any time interval by relying on the millisecond-level instantaneous power data, which is helpful for accurate analysis and management of power consumption, improves power utilization efficiency and management level, and can provide support and basis for subsequent analysis of product energy consumption and equipment efficiency analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of a flow chart of a method for calculating power consumption based on millisecond frequency instantaneous power data of an electric meter according to the present invention;

[0017] Figure 2 Schematic diagram of a thick plate mill calculating the power consumption of the product mill area using instantaneous power meter data and a model. DETAILED DESCRIPTION

[0018] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0019] See also Figure 1 This embodiment provides a method for calculating power consumption based on millisecond-frequency instantaneous power data of an electricity meter. This method can make full use of millisecond-level instantaneous power data to accurately calculate power consumption at any time interval, which helps to accurately analyze and manage power consumption.

[0020] The specific steps are as follows:

[0021] Step 1: Collect all millisecond instantaneous power data P(t) within any time interval, where t is the time point. Ensure that the collected data covers every millisecond time point within the hour and is accurate and reliable.

[0022] Step 2: Calculate the time interval. Since the data is in milliseconds, the time interval Δt is Where t1 is the end time timestamp in seconds, t2 is the start time timestamp in seconds, and N is the data volume.

[0023] Step 3: Calculate the energy consumption at each time point according to the formula E(t) = P(t) × Δt, where the unit of instantaneous power P(t) is watts and the unit of time interval Δt is seconds.

[0024] Step 4: Accumulate the energy consumption at all time points, using the formula Among them, N is the amount of data, and each E(t) is accurately added.

[0025] Step 5: Convert the total energy consumption into electricity consumption according to the formula The unit of total energy consumption Etotal is joule.

[0026] Assume the instantaneous power data is as follows (in watts):

[0027] P = [1000, 1500, 2000, ...]; time interval Δt = 0.001 seconds.

[0028] Follow the above steps to calculate:

[0029] First, calculate the energy consumption at each time point E(t)=P(t)×0.001.

[0030] Then accumulate the energy consumption at all time points

[0031] Finally converted to kWh

[0032] Therefore, the method provided by the present invention for calculating power consumption based on the millisecond-frequency instantaneous power data of the electricity meter can accurately calculate the power consumption at any time interval by relying on the millisecond-level instantaneous power data, which helps to accurately analyze and manage power consumption and improve power utilization efficiency and management level.

[0033] Figure 2 This diagram shows how the power consumption of the rolling mill area of ​​a wide and thick plate mill is calculated using instantaneous power meter data and a model. It shows that the power consumption per ton of steel is mainly distributed between 35.39 and 45.523 (kWh / t). This precise calculation can provide support and basis for subsequent energy consumption analysis of product specifications and equipment efficiency analysis.

[0034] In addition to the above embodiments, the present invention may also have other implementations. Any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection required by the present invention.

Claims

1. A method for calculating power consumption based on millisecond frequency instantaneous power data of an electric meter, characterized in that: The specific steps include: S1. Collect all millisecond instantaneous power data P(t) within any time interval, where t is the time point; S2. Calculate the time interval. The time interval Δt of millisecond-level data is Where t1 is the end time timestamp in seconds, t2 is the start time timestamp in seconds, and N is the data volume; S3. Calculate the energy consumption at each time point using the formula E(t) = P(t) × Δt; S4. Accumulate the energy consumption at all time points, the formula is Where N is the amount of data, S5. Convert the total energy consumption into electricity consumption using the formula:

2. The method for calculating power consumption based on millisecond frequency instantaneous power data of an electric meter according to claim 1, characterized in that: Collect all millisecond-level instantaneous power data P(t) within any time interval to ensure the accuracy and completeness of the data, covering every millisecond time point within the time interval.

3. The method for calculating power consumption based on millisecond frequency instantaneous power data of an electric meter according to claim 1, characterized in that: When calculating the energy consumption E(t)=P(t)×Δt at each time point in S3 , the unit of instantaneous power P(t) is watt, and the unit of time interval Δt is second.

4. The method for calculating power consumption based on millisecond frequency instantaneous power data of an electric meter according to claim 1, characterized in that: Sum up the energy expenditure at all time points During the process, each E(t) must be accurately added.

5. The method for calculating power consumption based on millisecond frequency instantaneous power data of an electric meter according to claim 1, characterized in that: When total energy consumption is converted into electricity consumption, the total energy consumption E total The unit is joule.

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