阅读说明：本技术 一种干线型节电设备在施工配电系统中的节电率验证方法 (Power saving rate verification method of main line type power saving equipment in construction power distribution system ) 是由 曾铁森 韩向红 廖祖伟 熊模友 闵世平 王敏 于 2019-10-30 设计创作，主要内容包括：本发明公开一种干线型节电设备在施工配电系统中的节电率验证方法,包括：(1)确定工点的主要用电设备；(2)选定基期及统计报告期；(3)安装干线型节电设备,切换至非节能模式,进入基期；(4)基期内测量各工序在测量时间段内的实际用电量；(5)测量基期总用电量；(6)设备切换至节能模式,进入统计报告期；(7)统计报告期内测量各工序在各自测量时间段内的实际用电量；(8)测量统计报告期总用电量；(9)计算产品节电率及不同工序时段单位时间的节电率。本发明以产品节电率和不同工序测量时间段节电率两个指标作为干线型节电设备在施工配电系统中节电率的验证指标,可以反映施工现场情况,为配电系统内电力质量的改善提供参考。(The invention discloses a power saving rate verification method of a main line type power saving device in a construction power distribution system, which comprises the following steps: (1) determining main electric equipment of a work point; (2) selecting a base period and a statistical report period; (3) installing a main line type power saving device, switching to a non-energy-saving mode, and entering a basic period; (4) measuring the actual electricity consumption of each procedure in a measurement time period in a basic period; (5) measuring the total electricity consumption in the basic period; (6) the equipment is switched to an energy-saving mode and enters a statistical report period; (7) measuring the actual electricity consumption of each procedure in each measurement time period in a statistical report period; (8) measuring and counting the total electricity consumption in a report period; (9) and calculating the power saving rate of the product and the power saving rates of different working procedure time periods in unit time. The invention takes two indexes of the power saving rate of the product and the power saving rates of different process measurement time periods as the verification indexes of the power saving rate of the main line type power saving equipment in the construction power distribution system, can reflect the condition of a construction site and provides reference for improving the power quality in the power distribution system.)

1. A power saving rate verification method of a main line type power saving device in a construction power distribution system is characterized by comprising the following steps:

(1) determining main electric equipment in a range of a power distribution system of a test work point, wherein the number of working procedures in one period of work point construction operation is n, and n is more than or equal to 1;

(2) selecting a base period and a statistical report period of the power saving rate of a test product; the periods specifically refer to time periods in which no power saving measures are implemented; the statistical report period specifically refers to a time period after the power saving measures are implemented;

(3) installing the trunk line type power saving equipment according to requirements and carrying out debugging and testing, switching to a non-energy-saving mode after the equipment is normal, and entering a basic period of a product power saving rate test;

(4) setting a measurement time period T for each process_iAnd i is 1,2,3 … … n, and measuring the actual electricity consumption E 'of each process in the respective measuring time periods in the basic period of the product electricity saving rate test'_off,i，i＝1,2,3……n；

(5) After the base period is finished, measuring the total power consumption of the product in the base period by the power saving rate test;

(6) switching the main line type power saving equipment to an energy saving mode, and entering a statistical report period of a product power saving rate test;

(7) measuring actual electricity consumption E 'of each process in each measurement time period in a statistical report period of the power saving rate test of the product'_on,i，i＝1,2,3……n；

(8) After the statistical report period is finished, measuring the total power consumption of the product in the same report period by the power saving rate test;

(9) under the same working condition, the steps (3) to (8) are circulated for m times, wherein m is more than or equal to 2, and the average value of each datum is taken;

(10) the power saving rate of the product and the power saving rates of different working procedure time periods in unit time are calculated according to the following formulas:

① power saving rate of product

In the formula, E_offThe average power consumption of the product power saving rate in the m times of base periods is calculated; e_onThe average power consumption of the power saving rate of the product in the m statistical report periods is calculated;

② Power saving rate in different process measurement time periods

In the formula, E_off,iAnd E_on,iThe average electricity consumption of each process in the m times of base period and the statistical report period is respectively.

2. The power saving rate verification method of a mains-type power saving device in a construction power distribution system according to claim 1, wherein in the step (4), the time period T is measured₁＝T₂＝T₃……T_n15 minutes.

3. The power saving rate verification method of the main line type power saving equipment in the construction power distribution system according to claim 2, characterized in that in the step (3), after the main line type power saving equipment is installed, an electric energy meter meeting the requirements of GB/T17215.701-2011 standard electric energy meter is installed at the front end of the main line type power saving equipment to measure the electric energy consumption.

Technical Field

The invention relates to the technical field of construction power distribution systems, in particular to a power saving rate verification method of a main line type power saving device in a construction power distribution system.

Background

At present, equipment capable of effectively improving power quality and realizing energy saving is mainly divided into a terminal type and a main line type according to the installation position in a power distribution system. The terminal type equipment is equipment for saving energy and improving local or single equipment or instruments, and loss of other parts in a power distribution system still exists, so that the situation that overall electric energy pollution or three-phase imbalance aggravates due to local transformation can occur in the actual use process of the terminal type equipment. The main line type equipment starts from the root of electric energy loss, integrally improves the power quality in the power distribution system, can play the roles of energy saving and protection on all equipment, instruments, circuits, switches and the like in the power distribution system, and is a more ideal power saving product compared with terminal type equipment.

At present, the verification method for power saving of the trunk line type power saving equipment usually adopts four same verification methods, namely: the verification is performed under the same load, the same time and the same environment. However, the method is only an ideal state verification method, and the strict meaning of 'four-identity' in actual production and life is difficult to realize, and particularly in the infrastructure construction industry, the 'four-identity' verification method has very strict realization conditions due to the conditions that the working procedures are complex, the time change is large, the types and the quantity of construction equipment are large, the construction electricity is greatly influenced by the environment and the construction working procedures and the like in the construction field. Moreover, the infrastructure construction industry can not really reflect the power saving rate conditions under different construction modes and procedures only by verifying the power saving rate by the 'same four methods'.

Therefore, a new idea is needed for effective verification of the power saving rate of the product in the infrastructure construction industry.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a power saving rate verification method of a main line type power saving device in a construction power distribution system, which adopts the following technical scheme:

a power saving rate verification method of a main line type power saving device in a construction power distribution system comprises the following steps:

(1) determining main electric equipment in a range of a power distribution system of a test work point, wherein the number of working procedures in one period of work point construction operation is n, and n is more than or equal to 1;

(2) selecting a base period and a statistical report period of the power saving rate of a test product; the periods specifically refer to time periods in which no power saving measures are implemented; the statistical report period specifically refers to a time period after the power saving measures are implemented;

(3) installing the trunk line type power saving equipment according to requirements and carrying out debugging and testing, switching to a non-energy-saving mode after the equipment is normal, and entering a basic period of a product power saving rate test;

(4) setting a measurement time period T for each process_iAnd i is 1,2,3 … … n, and measuring the actual electricity consumption E 'of each process in the respective measuring time periods in the basic period of the product electricity saving rate test'_off,i，i＝1,2,3……n；

(5) After the base period is finished, measuring the total power consumption of the product in the base period by the power saving rate test;

(6) switching the main line type power saving equipment to an energy saving mode, and entering a statistical report period of a product power saving rate test;

(7) measuring actual electricity consumption E 'of each process in each measurement time period in a statistical report period of the power saving rate test of the product'_on,i，i＝1,2,3……n；

(8) After the statistical report period is finished, measuring the total power consumption of the product in the same report period by the power saving rate test;

(9) under the same working condition, the steps (3) to (8) are circulated for m times, wherein m is more than or equal to 2, and the average value of each datum is taken;

(10) the power saving rate of the product and the power saving rates of different working procedure time periods in unit time are calculated according to the following formulas:

① power saving rate of product

In the formula (I), the compound is shown in the specification,E_offthe average power consumption of the product power saving rate in the m times of base periods is calculated; e_onThe average power consumption of the power saving rate of the product in the m statistical report periods is calculated;

② Power saving rate in different process measurement time periods

In the formula, E_off,iAnd E_on,iThe average electricity consumption of each process in the m times of base period and the statistical report period is respectively.

Preferably, in step (4), the time period T is measured₁＝T₂＝T₃……T_n15 minutes.

Further, in the step (3), after the installation of the main line type power saving device is completed, an electric energy meter meeting the requirements of the GB/T17215.701-2011 standard electric energy meter is installed at the front end of the main line type power saving device so as to measure the electric energy consumption.

Compared with the prior art, the invention has the following beneficial effects:

considering the complex power consumption situation of the construction site of the capital construction industry, the invention introduces concepts and calculation modes of basic period, statistical report period, basic period average power consumption, statistical report period average power consumption and the like on the basis of the four-same verification method, provides two indexes of comprehensive product power saving rate and unit time (preferably 15 minutes) power saving rate of different process periods as verification indexes of the power saving rate of the main line type power saving equipment in the construction power distribution system aiming at construction work points of different industries, thus effectively reflecting the overall use effect of the power saving equipment in the construction site, therefore, the user can intuitively and clearly know or estimate the economic benefit of the trunk-type power saving equipment, meanwhile, the method can start from the microcosmic view, the electricity saving rate of each construction procedure in unit time is clear, and the aim of integrally and locally combining is achieved. The power saving rate verification method designed by the invention can perfectly match and reflect the condition of a construction site, and really provides valuable and meaningful reference for improving the power quality in a subsequent power distribution system.

Detailed Description

The present invention is further illustrated by the following examples, which include, but are not limited to, the following examples.