CN106019946A - Real-time dynamic motor system energy saving amount accounting method and monitoring system - Google Patents

Abstract

The invention discloses a real-time dynamic motor system energy saving amount accounting method, which comprises the steps of regressing a load rate-efficiency curve of a dynamic motor system by using real-time test data of each device of the dynamic motor system, solving to acquire the technology energy saving amount and the management energy saving amount before and after transformation by using a relation between the efficiency and the energy consumption. The invention further discloses a dynamic motor system real-time monitoring system applying the accounting method, which comprises a device layer, an intelligent instrument layer, a control layer, a data transmission layer, an intelligent gateway and an information and monitoring platform. The method disclosed by the invention can carry out precise accounting on the management energy saving amount and the technology energy saving amount in the dynamic motor system, perform forecast and estimation on the energy saving potential and form an energy saving and emission reduction control strategy, and can carry out dynamic and real-time adjustment on an enterprise motor system by being combined with the dynamic motor system real-time monitoring system so as to realize the optimal energy consumption of the system.

Description

A kind of Real-time and Dynamic energy-saving of motor system accounting method and monitoring system

Technical field

The present invention relates to energy-saving of motor system and reduce discharging field, particularly relate to a kind of Real-time and Dynamic department of electrical engineering System amount of energy saving accounting method and monitoring system.

Background technology

Electric system refers to by driving motor, drive mechanism, control (speed governing) device, dragged dress Put overall with what systemic-function assembly was formed.Electric energy dress is changed to mechanical energy by motor by system, Various function is realized again by the acting of dragged device.

At present the power consumption of China's electric system accounts for the 60% of China's total electricity consumption, wherein blower fan, pump class, The power consumption of compressor and air conditioner refrigerating device accounts for the 10.4%, 20.9%, 9.4% of whole nation power consumption respectively, 6%.Industrial circle electric system power consumption accounts for the total electricity consumption total amount 75% of whole nation industry, but China's motor System effectiveness 10-30% lower than developed country, is equivalent to international 70-80 20th century, level age.

It is crucial that energy-saving of motor system has become industrial energy saving.The development trend of following motor must be efficient Energy-conservation, improve efficiency and save resource, reduce environmental pollution.Country pays much attention to energy-saving of motor system, Energy-saving of motor system was just listed in one of country's ten big energy conservation projects as far back as 2008, and 2009 again height Civilian-oriented project is listed in the application of effect, ultra-high efficient motor in, within 2015, has put into effect " whole nation motor efficiency lifting meter Draw " etc., using energy-saving efficient motor and energy-saving of motor system transformation is national requirements, the hugest Amount of energy saving the most very attracts enterprise to transform existing motor.Meanwhile, " 13 plan " is energy-conservation Reduce discharging in planning and also mention encouragement third party, EMCO carries out reducing energy consumption project.

China's motor market mainstream series is: JO2 series, Y-series, Y2 series, YX series, effect Rate far away from the efficiency of the products such as the high efficiency motor such as magneto and reluctance motor, ultra-high efficient motor, and The utilization rate of this kind of high efficiency motor is less than 15%, learns from investigation situation, enterprise and with understanding this per family Class technology, but they also indicate that current existing system or draft newly-built system the need of this kind of High efficiency motor, uses whether high efficiency motor is obtained in that the problems such as satisfied amount of energy saving.As can be seen here, Although the market potential of reducing energy consumption at present or newly-built high efficiency motor system is the hugest, promote efficiently Electric system and reducing energy consumption are extremely important, but the more important thing is and how to allow electric system user accurate Understand the energy-saving potential of current system and accurate accounting system amount of energy saving.

At present, the amount of energy saving for electric system calculates and the research direction of efficiency ratification method has benchmark Unit consumption matching type (product/output value), accumulative and method.Present stage, domestic conventional amount of energy saving calculating side Unit consumption matching type on the basis of method, the method is divided into unit consumption of product matching type and output value unit consumption matching type, technology Method is similar to.Its expression formula is:

Δ E=(e_(t+Δt)-e_t)Q

Wherein, e_(t+Δt)Represent the energy consumption of unit product after carrying out certain technology or measures to reform, e_tRepresent Business unit's product energy consumption, Δ t represents the measuring and calculating time, and Q represents amount of product throughput/enterprise's output value.

It is relatively broad that accumulation and method are applied in American-European countries, is a kind of method in statistics, for The accumulation sum of the difference between several sample values and certain preset value.Choose a certain power-saving technology and The measure energy resource consumption in the fixed cycle and product yield before enforcement, as data sample, record and raw Become energy consumption and Yield mapping (E-P), use correlation theory and the method for Linear Regression Model in One Unknown, it is possible to Try to achieve mutual relation between the two before and after power-saving technology is implemented.

E=mP+e

In formula, the energy energy-output ratio that E represents, what P represented is the yield of certain product of enterprise, m generation The implication of table is the coefficient of elasticity between product yield and energy input, namely often increases the product of a unit Yield, the quantity of energy of required input, e represents in process of producing product and the yield of product is not solid Determining the consumption of the energy of relation, this is an additional shift value.

Technical measures method, structural measure method are based on benchmark unit consumption matching type and derive.In comparison procedure The desired value all using the amount of energy saving before and after the report period corresponding is made difference and is obtained.

For benchmark unit consumption matching type (product/output value), technical measures method, structural measure method, Although method is relatively simple easy during application operating, but before and after there is technical measures enforcement, Once product yield changes greatly, and its metric will inaccurate defect.Additionally, be unfavorable for enterprise Implement the watershed management of project construction, the high energy consumption of project construction, high pollution and low-level may be caused Repeated construction.This kind of method does not adapts to and receives the dynamical system of many factors impact.Further, pin To dynamic electric system, use unit consumption method to be difficult to the report period completely the same with base period benchmark, cause Result of calculation is inaccurate.

For accumulation and method, due in process of producing product and the yield of product does not has fixed relationship The consumption of the energy be an additional shift value, it is impossible to accurately measuring, coefficient of elasticity fully relies on line Property Regression Model Simulator value obtain, it is thus achieved that result can not accurately reflect system energy efficiency situation.

The product yield used in above-mentioned calculating refers to qualified products, does not include substandard products and waste product, but energy Source consumption should include the energy quantity that waste product, substandard products are consumed.So calculating existing defects.

In addition to the problems referred to above, for dynamic electric system, the overall situation of above-mentioned amount of energy saving computational methods Limit is to embody in result of calculation the whole energy management level of enterprise, and technical measures method calculates Amount of energy saving is only limited to improve production process and the efficiency of energy utilization of equipment, fall by energy saving technical reconstruction Low energy expenditure and realize energy conservation.And do not include ways such as expanding production capacity, adjust the product mix The energy-saving effect that footpath produces.These aspects may be very big to reducing the contribution of enterprise energy consumption total amount aspect, but But it is not reflected during technical measures method calculates；Two is that existing technical measures amount of energy saving calculates Method still can not contain the full content of industry energy conservation technological transformation in time, dynamically, it is difficult to anti- Reflect actual amount of energy saving.

Summary of the invention

First technical problem that the invention solves the problems that is to provide a kind of Real-time and Dynamic energy-saving of motor system Accounting method, accurately can adjust, to joint managing energy-conservation, technical energy saving in dynamic electric system Potentiality can be predicted and estimate.

For solving above-mentioned technical problem, the present invention adopts the following technical scheme that

A kind of Real-time and Dynamic energy-saving of motor system accounting method, utilizes each equipment of dynamic electric system real Time test data regression dynamic motor system load rate-efficiency curve, recycling efficiency and energy consumption between close System solves technical energy saving, management amount of energy saving before and after acquisition transformation.

Further, comprise the steps:

(1) electric system each equipment input power and output work are obtained with time t for variable Real-time Collection Rate data message, is calculated each apparatus of load rate β；

(2) dynamic electric system type of work is analyzed according to calculated load factor β of data gathered；

(3) determine that system type of work, selected equipment Several Typical Load situation determine that collection period is carried out fixed To data acquisition and be calculated each apparatus of load rate and efficiency；

(4) under certain type of work, it is considered to the impact between each equipment solves each device efficiency table Reach formula variable relation under the conditions of certain load factor；

(5) integrate each equipment expression formula composition efficiency expression formula and solve；

(6) technical energy saving, management joint before and after between utilization ratio and energy consumption, relation solves acquisition transformation Energy.

Further, described type of work is: continuously-running duty, temporary duty, discontinuously week Phase sex work mode, start and stop intermittent periodic duty, continuous periodic duty, long period are continuous Working method, continuously-running duty aperiodic or chopping mode aperiodic.

Further, the efficiency expression formula in described step (5) is:

$\left[\begin{array}{c}{\mathrm{\η}}_{q1-\mathrm{\β}1}\left(t\right)=f_{q1-\mathrm{\β}1}\left({\mathrm{\β}}_1\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ {\mathrm{\η}}_{q2-\mathrm{\β}1}\left(t\right)=f_{q2-\mathrm{\β}1}\left({\mathrm{\β}}_1\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ {\mathrm{\η}}_{q3-\mathrm{\β}1}\left(t\right)=f_{q3-\mathrm{\β}1}\left({\mathrm{\β}}_1\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ .\\ .\\ .\\ {\mathrm{\η}}_{qN-\mathrm{\β}1}\left(t\right)=f_{qN-\mathrm{\β}1}\left({\mathrm{\β}}_1\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ {\mathrm{\η}}_{q1-\mathrm{\β}2}\left(t\right)=f_{q1-\mathrm{\β}2}\left({\mathrm{\β}}_2\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ {\mathrm{\η}}_{q2-\mathrm{\β}2}\left(t\right)=f_{q2-\mathrm{\β}2}\left({\mathrm{\β}}_2\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ {\mathrm{\η}}_{q3-\mathrm{\β}2}\left(t\right)=f_{q3-\mathrm{\β}2}\left({\mathrm{\β}}_2\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ .\\ .\\ .\\ {\mathrm{\η}}_{qN-\mathrm{\β}2}\left(t\right)=f_{qN-\mathrm{\β}2}\left({\mathrm{\β}}_2\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ .\\ .\\ .\\ .\\ .\\ .\\ {\mathrm{\η}}_{q1-\mathrm{\β}L}\left(t\right)=f_{q1-\mathrm{\β}L}\left({\mathrm{\β}}_L\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ {\mathrm{\η}}_{q2-\mathrm{\β}L}\left(t\right)=f_{q2-\mathrm{\β}L}\left({\mathrm{\β}}_L\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ {\mathrm{\η}}_{q3-\mathrm{\β}L}\left(t\right)=f_{q3-\mathrm{\β}L}\left({\mathrm{\β}}_L\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ .\\ .\\ .\\ {\mathrm{\η}}_{qN-\mathrm{\β}L}\left(t\right)=f_{qN-\mathrm{\β}L}\left({\mathrm{\β}}_L\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\end{array}\right]$

In formula, η_qi-βjT () represents in load factor β_jUnder time dependent equipment q_iEfficiency value, should Value changes over and changes；f_qi-βjRepresent in corresponding load factor β_jUnder the conditions of Real time Efficiency curve Function；Wherein i excursion is that 1-N represents N number of motor device；J excursion is that 1-L represents and returns Return the different loads of L kind type of work corresponding when data.

Further, the technical energy saving in described step (6), management amount of energy saving, for arbitrary electricity Calculate management amount of energy saving and the technical energy saving of equipment qi by manner below during the individual equipment of machine system::

$\begin{array}{c}{E}_{sys-qi}=\underset{\mathrm{\Δ}t\→\mathrm{\∞}}{\lim }{\∫}_{t_i}^{t_i+\mathrm{\Δ}t}{E}_{sys-qi}\left(t\right)dt\\ =\underset{\mathrm{\Δ}t\→\mathrm{\∞}}{\lim }{\∫}_{t_i}^{t_i+\mathrm{\Δ}t}{G}_{t_i}^{sys}\left({\mathrm{\η}}_{qi}\right(t),{\mathrm{\β}}_{qi-t_i}(q_1,q_2,q_3,\mathrm{...},q_N\left)\right)dt\end{array}$

$\begin{array}{c}{E}_{tec-qi}=\underset{\mathrm{\Δ}t\→\mathrm{\∞}}{\lim }{\∫}_{t_i}^{t_i+\mathrm{\Δ}t}{E}_{tec-qi}\left(t\right)dt\\ =\underset{\mathrm{\Δ}t\→\mathrm{\∞}}{\lim }{\∫}_{t_i}^{t_i+\mathrm{\Δ}t}{G}_{t_i}^{tec}\left({\mathrm{\η}}_{qi}\right(t),{\mathrm{\β}}_{qi-t_i}(q_1,q_2,q_3,\mathrm{...},q_N\left)\right)dt\end{array}$

In above formula, t_iFor the moment of initial calculation amount of energy saving, Δ t is assessment period length, E_sys-qiWith E_tec-qiThe system administration amount of energy saving of expression equipment qi and technical energy saving,WithRepresent t_iMoment Reach containing variable equipment qi efficiency and the system administration amount of energy saving expression formula of load factor and technical energy saving scale Formula, this expression formula is generated by Real-time Feedback result matching, η_qiThe efficiency of expression equipment qi；Work as t_iValue It is when 0, to represent that electric system is newly-built system.

Further, the technical energy saving in described step (6), management amount of energy saving, for whole life Produce all electric systems of link, calculate by manner below:

$E_{sys}={\Σ}_{j=1}^{j=N}\underset{\mathrm{\Δ}t\→\mathrm{\∞}}{\lim }{\∫}_{t_i}^{t_i+\mathrm{\Δ}t}{G}_{j-t_i}^{sys}\left(\mathrm{\η}\right(t,{\mathrm{\η}}_{1,}{\mathrm{\η}}_{2,}...{\mathrm{\η}}_{N,}{\mathrm{\η}}_1^{,},{\mathrm{\η}}_2^{,},...{\mathrm{\η}}_N^{,}),{\mathrm{\β}}_{t_i}(q_1,q_2,q_3,...,q_N\left)\right)dt$

$E_{tec}={\Σ}_{j=1}^{j=N}\underset{\mathrm{\Δ}t\→\mathrm{\∞}}{\lim }{\∫}_{t_i}^{t_i+\mathrm{\Δ}t}{G}_{j-t_i}^{tec}\left(\mathrm{\η}\right(t,{\mathrm{\η}}_{1,}{\mathrm{\η}}_{2,}...{\mathrm{\η}}_{N,}{\mathrm{\η}}_1^{,},{\mathrm{\η}}_2^{,},...{\mathrm{\η}}_N^{,}),{\mathrm{\β}}_{t_i}(q_1,q_2,q_3,...,q_N\left)\right)dt$

In formula, E_sysAnd E_tecRepresenting enterprise-oriented system management amount of energy saving and technical energy saving, η represents system System efficiency, η₁-η_NThe efficiency of expression equipment 1 to equipment N and η '₁To η '_NRepresent electric system equipment Between transmission efficiency；J represents equipment number, and N represents the equipment total amount in current motor system；t_iRepresent In the moment of initial calculation amount of energy saving, Δ t represents assessment period length；Represent in the load that the ti moment is corresponding Rate expression formula；WithRepresent t_iThe system administration amount of energy saving expression formula of moment J equipment and technology joint Derivation of energy formula, this expression formula is generated by Real-time Feedback result matching.

Second technical problem that the invention solves the problems that is to provide one and can enter enterprise dynamic electric system Mobile state, in real time monitoring, regulation, it is achieved the dynamic electric system of system optimal energy consumption monitors system in real time System.

For solving above-mentioned technical problem, the present invention adopts the following technical scheme that

A kind of dynamically electric system real-time monitoring system, applies above-mentioned Real-time and Dynamic energy-saving of motor system Accounting method, including mechanical floor, Intelligent Instrument top layer, key-course, data transfer layer, intelligent gateway and Information and monitor supervision platform；Intelligent Instrument top layer input power of each equipment, defeated in the collecting device layer Go out power and calculate distinct device load factor, efficiency in real time motor system；Data transfer layer is used for passing The data of defeated collection and calculated real time load rate, efficiency data, for transmitted in both directions structure, with Time receive the data uploaded of Intelligent Instrument top layer, be sent to intelligent gateway, the control also sent by intelligent gateway Data down transmission processed is to key-course；Information and monitor supervision platform are for collection data intelligent gateway transmission come It is analyzed and is formed corresponding energy-saving and emission-reduction control strategy, and by intelligent gateway, key-course to setting Standby layer is controlled；It is additionally operable to show in real time, monitors dynamic electric system in real time.

By using technique scheme, the present invention at least has the advantage that

1, the method for the present invention can contain the full content of industry energy conservation technological transformation in time, dynamically, Electric system user is allowed accurately to understand the energy-saving potential of current system and accurate accounting system amount of energy saving (bag Include management amount of energy saving and technical energy saving).By management of computing amount of energy saving and technical energy saving, can be effective Ground divides the Income Sharing after reducing energy consumption；It is right that enterprise can be analyzed by management Energy-saving Data timely Production is planned, realizes energy-conservation in actual production process；Understood by technical energy saving data analysis The problem that system, process aspect exist, asks such as electric motor overheating, current overload, overload operation etc. Topic；The suitability of the present invention is extremely strong, all can use, have vast in various dynamic electric systems Use space.

2, the monitoring system of the present invention enterprise dynamic electric system can be carried out monitoring dynamic, real-time, Regulation, it is achieved system optimal energy consumption.

Accompanying drawing explanation

Above-mentioned is only the general introduction of technical solution of the present invention, in order to better understand the technology of the present invention Means, below in conjunction with accompanying drawing, the present invention is described in further detail with detailed description of the invention.

Fig. 1 is energy-saving and emission-reduction strategy preparation method flow charts；

Fig. 2 is the dynamic motor system schematic under different running method；

Fig. 3 is electric system (blower fan/pumping system) data acquisition schematic diagram；

Fig. 4 be technical energy saving, management amount of energy saving solve schematic diagram；

Fig. 5 is a kind of dynamically electric system real-time monitoring system schematic diagram of the present invention.

Detailed description of the invention

Embodiment 1

Real-time Collection dynamic data is analyzed by the present invention, and accurately calculates whole by accounting method Management amount of energy saving in production process, technical energy saving.It is possible not only to for single motor system, also Can adjust for all electric systems of whole production link.

In order to amount of energy saving is accurately calculated, by substantial amounts of industry comparison and analysis, real-time by gather Data are divided into following several plant running pattern, in order to accurately analyze the most targetedly amount of energy saving and Energy-saving and emission-reduction strategy is proposed.

1) method of operation one: use energy saver, and energy saver can be closed, and (energy saver is not sent out Raw effect)；

2) method of operation two: do not use energy saver, the most do not change high-efficiency electric motor or efficiently set Standby (blower fan, pump), only by adjusting (raising) load factor acquisition amount of energy saving；

3) method of operation three: change high-efficiency electric motor and air-foil fan (or pump), or use and can not close The energy-saving equipment closed；

4) method of operation four: both changed high-efficiency appliance, use again management means to improve unit (system) Run load factor；

Above-mentioned four kinds of modes are modal motor actual operatings, distinguish above-mentioned difference only in detail The electric system that situation is run, could the most accurately calculate amount of energy saving, and then use this energy-conservation gauge Calculate and manage energy-conservation and technical energy saving.

A kind of Real-time and Dynamic energy-saving of motor system accounting method of the present invention, major design is contemplated that: Utilize dynamic electric system each equipment real-time testing data regression dynamic motor system load rate-efficiency bent Line, recycling efficiency and energy consumption between relation solve acquisition transformation before and after technical energy saving, manage energy-conservation Amount.

Shown in Fig. 1, illustrate Real-time and Dynamic energy-saving of motor system accounting method, bag Include following steps:

(1) electric system each equipment input power and output work are obtained with time t for variable Real-time Collection Rate data message, is calculated each apparatus of load rate β；

(2) dynamic electric system type of work is analyzed according to calculated load factor β of data gathered；

(3) determining system type of work, (in electric system, distinct device is individual to analyze unknown number number Number), selected equipment Several Typical Load situation determines that collection period is oriented data acquisition and is calculated each Apparatus of load rate and efficiency；

(4) under certain type of work, it is considered to the impact between each equipment solves each device efficiency table Reach formula variable relation under the conditions of certain load factor；

(5) integrate each equipment expression formula composition efficiency expression formula and solve；

(6) technical energy saving, management joint before and after between utilization ratio and energy consumption, relation solves acquisition transformation Energy.

In above-mentioned steps (2), according to practical condition, electric system is subdivided into 8 kinds of situations, as Fig. 2, respectively continuously-running duty, temporary duty, interruption period sex work mode, start and stop break Continuous periodic duty, continuous periodic duty, long period continuously-running duty, aperiodic are continuous Working method or chopping mode aperiodic.

Wherein it is divided into base period test value, report period test value (note: according to system according to the testing time Real-time Feedback can automatically select the generation time period).

Step (1), step (3) gather data as it is shown on figure 3, directly collection each equipment input power, Output, reflects each energy-consuming parts of whole electric system (as a example by blower fan/pumping system) in Fig. 3. Data acquisition has load factor, efficiency, correction value by calculating acquisition after returning.For system, The present invention is all of collection data and calculating data to be completed in gathering this link, and passes through Instrument feeds back to show in visualization device；Correction value refers to the adjusted value to acquisition precision；Owing to adopting Collection device transmission and calculating process cause time lag and precision relatively low, in this case, and can root According to equipment situation, counting correction value, the information of display in visualization device that will be transmitted to is adjusted to real-time Corresponding.Note: be only schematic diagram in Fig. 3, gathers data and is not limited only to following data.

In addition, it is necessary to it is to be noted that the border of system-computed sets, electric system includes power supply, electronic Machine, transmission, driven equipment etc., wherein may comprise multiple unit, multiple transmission and multiple dragging and set Standby, border sets and refers to, just for input and the output of system during test input-output power, Also have input and the output of single unit, and multiple units can not be tested, the most simultaneously Influencing each other between multiple unit can not be embodied, may cause calculating inaccuracy.

Arranging calculation of boundary conditions during calculating at present is:

Note: in addition during system effectiveness 100%, can be not added with (directly with the fractional representation less than 1).But Need total system unified.System effectiveness and component efficiency add up to (product of each uni-body components efficiency) to be formed System chain comparison, to confirm that efficiency affects link or factor.

With time t as variable: having N number of equipment, the load factor of each equipment in system is β_i, wherein I value is 1 to N.Every equipment returns data by test and calculates the system dynamics efficiency eta of correspondence_i.Above-mentioned value is instantaneous value, changes in change over time, is calculated as β_i(t), η_i(t).System The time period that choice of dynamical in the calculation of uniting is different is shown as Ti (t) as calculating periodic chart.According to analysis, β_i(t), η_iT () data overload operation more than 100%, can described monitor supervision platform below On there will be warning.The efficiency of whole system can represent with matrix, in order to solution matrix needs in information Platform input corresponding requirements.Expression formula reflects electric system dynamic property.Expression formula is as follows.

$\left[\begin{array}{c}{\mathrm{\η}}_{q1-\mathrm{\β}1}\left(t\right)=f_{q1-\mathrm{\β}1}\left({\mathrm{\β}}_1\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ {\mathrm{\η}}_{q2-\mathrm{\β}1}\left(t\right)=f_{q2-\mathrm{\β}1}\left({\mathrm{\β}}_1\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ {\mathrm{\η}}_{q3-\mathrm{\β}1}\left(t\right)=f_{q3-\mathrm{\β}1}\left({\mathrm{\β}}_1\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ .\\ .\\ .\\ {\mathrm{\η}}_{qN-\mathrm{\β}1}\left(t\right)=f_{qN-\mathrm{\β}1}\left({\mathrm{\β}}_1\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ {\mathrm{\η}}_{q1-\mathrm{\β}2}\left(t\right)=f_{q1-\mathrm{\β}2}\left({\mathrm{\β}}_2\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ {\mathrm{\η}}_{q2-\mathrm{\β}2}\left(t\right)=f_{q2-\mathrm{\β}2}\left({\mathrm{\β}}_2\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ {\mathrm{\η}}_{q3-\mathrm{\β}2}\left(t\right)=f_{q3-\mathrm{\β}2}\left({\mathrm{\β}}_2\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ .\\ .\\ .\\ {\mathrm{\η}}_{qN-\mathrm{\β}2}\left(t\right)=f_{qN-\mathrm{\β}2}\left({\mathrm{\β}}_2\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ .\\ .\\ .\\ .\\ .\\ .\\ {\mathrm{\η}}_{q1-\mathrm{\β}L}\left(t\right)=f_{q1-\mathrm{\β}L}\left({\mathrm{\β}}_L\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ {\mathrm{\η}}_{q2-\mathrm{\β}L}\left(t\right)=f_{q2-\mathrm{\β}L}\left({\mathrm{\β}}_L\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ {\mathrm{\η}}_{q3-\mathrm{\β}L}\left(t\right)=f_{q3-\mathrm{\β}L}\left({\mathrm{\β}}_L\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ .\\ .\\ .\\ {\mathrm{\η}}_{qN-\mathrm{\β}L}\left(t\right)=f_{qN-\mathrm{\β}L}\left({\mathrm{\β}}_L\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\end{array}\right]$

In formula, η_qi-βjT () represents in load factor β_jUnder time dependent equipment q_iEfficiency value, should Value changes over and changes；f_qi-βjRepresent in corresponding load factor β_jUnder the conditions of Real time Efficiency curve Function, due to the efficiency amount of energy saving that making assessments of the performance of each enterprise's level is overall, it is necessary to consider between different electric system Influence each other, so needing the impact of combined study N platform equipment, the shadow of influence degree in this method Ring by load factor β_jReflection.Load factor β_jChange over time and change, additionally, in same load Also by distinct device q under the conditions of rate_iImpact.Note, wherein i excursion is that 1-N represents N number of electricity Machine equipment；J excursion is that 1-L represents that the difference of L kind type of work corresponding when returning data is born Carry.The most dynamically electric system is divided into 8 kinds of type of work, the most corresponding different bearing Carry situation of change.

With amount of energy saving E as variable: the efficiency of N number of equipment and load factor all with input power and output Directly related, and input and be reacted directly on amount of energy saving with output, it is energy-conservation that this part has management Amount E_sysWith technical energy saving E_tecProduce.By the different types of input of the efficiency calculation of above-mentioned generation, Output and relevant major variable will obtain the amount of energy saving expression formula of correspondence.Amount of energy saving can be by mark The conversion of quasi-coal represents alternatively by other modes.The proposition of different Energy Saving Strategy is then by calculating Optimum value obtains.

Electric system efficiency with the relation of input-output power is:

$\mathrm{\η}=\frac{p_{out}}{p_{in}}$

As a example by pumping system, power and flow Q_v, lift H etc. have relation, expression formula can be rewritten as:

$\mathrm{\η}\left(t_i\right)=\frac{p_{out}\left(Q_v\right(t_i),H(t_i\left)\right)}{p_{in}\left(Q_v\right(t_i),H(t_i\left)\right)}$

Wherein, input power p_inCan be scaled the electricity charge or standard coal consumption, expression formula can be written as:

$E\left(\mathrm{\Δ}t\right)=G_{t_i}\left(\mathrm{\η}\right(\mathrm{\Δ}t),{\mathrm{\β}}_{t_i})$

Illustrate with pumping system above.Efficiency and dependency number is calculated by the input-output power collected Relation between value, then solve amount of energy saving by conversion.

Solve t by the way_iThe energy consumption in moment also predicts joint when running duration Δ t under similarity condition Energy, manages amount of energy saving E_sysWith technical energy saving E_tecCalculating can be represented by Fig. 4.

Different load factors and efficiency curve can be obtained by Reconstruc-tion policy different seen from Fig. 4, corresponding Management amount of energy saving E_sysWith technical energy saving E_tecDifferent.During for the individual equipment of arbitrary electric system Management amount of energy saving and the technical energy saving of equipment qi is calculated by manner below.

$\begin{array}{c}{E}_{sys-qi}=\underset{\mathrm{\Δ}t\→\mathrm{\∞}}{\lim }{\∫}_{t_i}^{t_i+\mathrm{\Δ}t}{E}_{sys-qi}\left(t\right)dt\\ =\underset{\mathrm{\Δ}t\→\mathrm{\∞}}{\lim }{\∫}_{t_i}^{t_i+\mathrm{\Δ}t}{G}_{t_i}^{sys}\left({\mathrm{\η}}_{qi}\right(t),{\mathrm{\β}}_{qi-t_i}(q_1,q_2,q_3,\mathrm{...},q_N\left)\right)dt\end{array}$

$\begin{array}{c}{E}_{tec-qi}=\underset{\mathrm{\Δ}t\→\mathrm{\∞}}{\lim }{\∫}_{t_i}^{t_i+\mathrm{\Δ}t}{E}_{tec-qi}\left(t\right)dt\\ =\underset{\mathrm{\Δ}t\→\mathrm{\∞}}{\lim }{\∫}_{t_i}^{t_i+\mathrm{\Δ}t}{G}_{t_i}^{tec}\left({\mathrm{\η}}_{qi}\right(t),{\mathrm{\β}}_{qi-t_i}(q_1,q_2,q_3,\mathrm{...},q_N\left)\right)dt\end{array}$

In above formula, t_iFor the moment of initial calculation amount of energy saving, Δ t is assessment period length, E_sys-qiAnd E_tec-qi The system administration amount of energy saving of expression equipment qi and technical energy saving,WithRepresent t_iMoment contains change Amount equipment qi efficiency and the system administration amount of energy saving expression formula of load factor and technical energy saving expression formula, this table Reach formula to be generated by Real-time Feedback result matching and (need to carry out calculating after abbreviation just by matrix above Can obtain the expression formula of correspondence, the result matching that expression formula is fed back to by real time data monitoring draws, The variable wherein comprised includes efficiency and load factor), η_qiThe efficiency of expression equipment qi.Work as t_iValue is 0 Time represent that electric system is newly-built system.

The situation that a unit curve that above-mentioned Fig. 4 is only for example is corresponding, whole electric system is then logical Cross multiple similar curve to calculate finding limit and sue for peace again and obtain.

Need to investigate whole system when calculating the amount of energy saving of whole system:

$\begin{array}{c}{E}_{sys}\\ ={\Σ}_{j=1}^{j=N}\underset{\mathrm{\Δ}t\→\mathrm{\∞}}{\lim }{\∫}_{t_i}^{t_i+\mathrm{\Δ}t}{G}_{j-t_i}^{sys}\left(\mathrm{\η}\right(t,{\mathrm{\η}}_{1,}{\mathrm{\η}}_{2,}...{\mathrm{\η}}_{N,}{\mathrm{\η}}_1^{,},{\mathrm{\η}}_2^{,},...{\mathrm{\η}}_N^{,}),{\mathrm{\β}}_{t_i}(q_1,q_2,q_3,...,q_N\left)\right)dt\end{array}$

$\begin{array}{c}{E}_{tec}\\ ={\Σ}_{j=1}^{j=N}\underset{\mathrm{\Δ}t\→\mathrm{\∞}}{\lim }{\∫}_{t_i}^{t_i+\mathrm{\Δ}t}{G}_{j-t_i}^{tec}\left(\mathrm{\η}\right(t,{\mathrm{\η}}_{1,}{\mathrm{\η}}_{2,}...{\mathrm{\η}}_{N,}{\mathrm{\η}}_1^{,},{\mathrm{\η}}_2^{,},...{\mathrm{\η}}_N^{,}),{\mathrm{\β}}_{t_i}(q_1,q_2,q_3,...,q_N\left)\right)dt\end{array}$

In formula, E_sysAnd E_tecRepresenting enterprise-oriented system management amount of energy saving and technical energy saving, η represents system System efficiency, η₁-η_NThe efficiency of expression equipment 1 to equipment N and η '₁To η '_NRepresent electric system equipment Between transmission efficiency；J represents equipment number, and N represents the equipment total amount in current motor system；t_iRepresent In the moment of initial calculation amount of energy saving, Δ t represents assessment period length；Represent in the load that the ti moment is corresponding Rate expression formula；WithRepresent t_iThe system administration amount of energy saving expression formula of moment J equipment and technology joint Derivation of energy formula, this expression formula is generated by Real-time Feedback result matching.After integration and finding limit The amount of energy saving of acquisition each equipment of equipment, obtains the amount of energy saving of whole system by summation.

Utilize Life Cycle Costs after obtaining enterprise-oriented system amount of energy saving, solve life cycle cost Numerical value, as reference, evaluates the quality of different energy-saving and emission-reduction strategy.Energy-saving and emission-reduction strategy proposes flow chart As shown in Figure 1.

Embodiment 2

The dynamic electric system real-time monitoring system of the present invention, belongs to based on intelligent gateway and is wirelessly transferred The energy-saving and emission-reduction control system of test instrumentation exploitation.Based on real-time data collection analysis management amount of energy saving and Technical energy saving, to technology, manages, produces intensity etc. and propose optimization energy-saving and emission-reduction control strategy, System framework figure is as shown in Figure 5.Dynamic electric system is divided into production line, mechanical floor, intelligence by Fig. 5 Energy instrument layer, key-course, data transfer layer, intelligent gateway, information and monitor supervision platform.

Production line refers to the production part that the electric system in the range of use boundary demarcation is corresponding.

Mechanical floor refers to the equipment that the electric system in the range of boundary demarcation relates to, including pump, wind The equipment such as machine, air compressor machine.The equipment of number of different types may be comprised in same electric system.

Intelligent Instrument top layer is for the interior input power of each equipment of collecting device layer, output and calculates Distinct device load factor and efficiency in real time motor system.

Data transfer layer is used for transmitting data and calculated real time load rate, the efficiency data of collection, This layer is transmitted in both directions structure, and intelligent gateway is also sent by the data that receiving instrument top layer is uploaded simultaneously Control data down transmission to key-course.

Intelligent gateway is the control based on network gateway of a kind of multi-service, multiport, and it is used for data at IP Network/radio control protocols real-time Transmission, it is possible to achieve the Intelligent Instrument top layer of its management and the number of key-course According to gathering and remotely sending control signal.

Information and monitor supervision platform are used for gathering the analysis of data and forming corresponding energy-saving and emission-reduction control strategy, And by intelligent gateway, key-course, mechanical floor is controlled；It is additionally operable to show in real time, monitors in real time Dynamically electric system.Information platform part therein has process in real time and returns data the calculation with invention Method management of computing is energy-conservation and technical energy saving, reflects in monitor supervision platform part with the data returned simultaneously. Information platform part also has analytic function, it is possible to industry average index and current enterprise production target Or the indication information set analyzes in real time, find to exceed benchmark and can reflect in monitor supervision platform part. Electric system test data are done display in real time by monitor supervision platform part.Can be to intelligence by monitor supervision platform part Control information can be sent by gateway, regulate the equipment that electric system is corresponding, it is achieved energy saving of system emission reduction strategy, Obtain corresponding amount of energy saving.

The above, be only presently preferred embodiments of the present invention, and the present invention not makees any form On restriction, those skilled in the art utilize the technology contents of the disclosure above make a little simple modification, Equivalent variations or modification, all fall within protection scope of the present invention.

Claims (7)

1. a Real-time and Dynamic energy-saving of motor system accounting method, it is characterised in that utilize dynamic electric Machine system each equipment real-time testing data regression dynamic motor system load rate-efficiency curve, recycling effect Technical energy saving, management amount of energy saving before and after between rate and energy consumption, relation solves acquisition transformation.

Real-time and Dynamic energy-saving of motor system accounting method the most according to claim 1, its feature It is, comprises the steps:

(1) electric system each equipment input power and output work are obtained with time t for variable Real-time Collection Rate data message, is calculated each apparatus of load rate β；

(2) dynamic electric system type of work is analyzed according to calculated load factor β of data gathered；

(3) determine that system type of work, selected equipment Several Typical Load situation determine that collection period is carried out fixed To data acquisition and be calculated each apparatus of load rate and efficiency；

(4) under certain type of work, it is considered to the impact between each equipment solves each device efficiency table Reach formula variable relation under the conditions of certain load factor；

(5) integrate each equipment expression formula composition efficiency expression formula and solve；

(6) technical energy saving, management joint before and after between utilization ratio and energy consumption, relation solves acquisition transformation Energy.

Real-time and Dynamic energy-saving of motor system accounting method the most according to claim 2, its feature Being, described type of work is: continuously-running duty, temporary duty, interruption period sex work Mode, start and stop intermittent periodic duty, continuous periodic duty, long period continuously-running duty, Aperiodic continuously-running duty or chopping mode aperiodic.

4. according to the Real-time and Dynamic energy-saving of motor system accounting method described in Claims 2 or 3, its Being characterised by, the efficiency expression formula in described step (5) is:

$\left[\begin{array}{c}{\mathrm{\η}}_{q1-\mathrm{\β}1}\left(t\right)=f_{q1-\mathrm{\β}1}\left({\mathrm{\β}}_1\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ {\mathrm{\η}}_{q2-\mathrm{\β}1}\left(t\right)=f_{q2-\mathrm{\β}1}\left({\mathrm{\β}}_1\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ {\mathrm{\η}}_{q3-\mathrm{\β}1}\left(t\right)=f_{q3-\mathrm{\β}1}\left({\mathrm{\β}}_1\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ .\\ .\\ .\\ {\mathrm{\η}}_{qN-\mathrm{\β}1}\left(t\right)=f_{qN-\mathrm{\β}1}\left({\mathrm{\β}}_1\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ {\mathrm{\η}}_{q1-\mathrm{\β}2}\left(t\right)=f_{q1-\mathrm{\β}2}\left({\mathrm{\β}}_2\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ {\mathrm{\η}}_{q2-\mathrm{\β}2}\left(t\right)=f_{q2-\mathrm{\β}2}\left({\mathrm{\β}}_2\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ {\mathrm{\η}}_{q3-\mathrm{\β}2}\left(t\right)=f_{q3-\mathrm{\β}2}\left({\mathrm{\β}}_2\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ .\\ .\\ .\\ {\mathrm{\η}}_{qN-\mathrm{\β}2}\left(t\right)=f_{qN-\mathrm{\β}2}\left({\mathrm{\β}}_2\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ .\\ .\\ .\\ .\\ .\\ .\\ {\mathrm{\η}}_{q1-\mathrm{\β}L}\left(t\right)=f_{q1-\mathrm{\β}L}\left({\mathrm{\β}}_L\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ {\mathrm{\η}}_{q2-\mathrm{\β}L}\left(t\right)=f_{q2-\mathrm{\β}L}\left({\mathrm{\β}}_L\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ {\mathrm{\η}}_{q3-\mathrm{\β}L}\left(t\right)=f_{q3-\mathrm{\β}L}\left({\mathrm{\β}}_L\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\\ .\\ .\\ .\\ {\mathrm{\η}}_{qN-\mathrm{\β}L}\left(t\right)=f_{qN-\mathrm{\β}L}\left({\mathrm{\β}}_L\right(t,q_1,q_2,q_3,\mathrm{...},q_N\left)\right)\end{array}\right]$

In formula, η_qi-βjT () represents in load factor β_jUnder time dependent equipment q_iEfficiency value, should Value changes over and changes；f_qi-βjRepresent in corresponding load factor β_jUnder the conditions of Real time Efficiency curve Function；Wherein i excursion is that 1-N represents N number of motor device；J excursion is that 1-L represents and returns Return the different loads of L kind type of work corresponding when data.

Real-time and Dynamic energy-saving of motor system accounting method the most according to claim 4, its feature Being, the technical energy saving in described step (6), management amount of energy saving, for arbitrary electric system With management amount of energy saving and the technical energy saving of manner below calculating equipment qi during individual equipment:

$\begin{array}{c}{E}_{sys-qi}=\underset{\mathrm{\Δ}t\→\mathrm{\∞}}{\lim }{\∫}_{t_i}^{t_i+\mathrm{\Δ}t}{E}_{sys-qi}\left(t\right)dt\\ =\underset{\mathrm{\Δ}t\→\mathrm{\∞}}{\lim }{\∫}_{t_i}^{t_i+\mathrm{\Δ}t}{G}_{t_i}^{sys}\left({\mathrm{\η}}_{qi}\right(t),{\mathrm{\β}}_{qi-t_i}(q_1,q_2,q_3,\mathrm{...},q_N\left)\right)dt\end{array}$

$\begin{array}{c}{E}_{tec-qi}=\underset{\mathrm{\Δ}t\→\mathrm{\∞}}{\lim }{\∫}_{t_i}^{t_i+\mathrm{\Δ}t}{E}_{tec-qi}\left(t\right)dt\\ =\underset{\mathrm{\Δ}t\→\mathrm{\∞}}{\lim }{\∫}_{t_i}^{t_i+\mathrm{\Δ}t}{G}_{t_i}^{tec}\left({\mathrm{\η}}_{qi}\right(t),{\mathrm{\β}}_{qi-t_i}(q_1,q_2,q_3,\mathrm{...},q_N\left)\right)dt\end{array}$

In above formula, t_iFor the moment of initial calculation amount of energy saving, Δ t is assessment period length, E_sys-qiWith E_tec-qiThe system administration amount of energy saving of expression equipment qi and technical energy saving,WithRepresent t_iMoment Reach containing variable equipment qi efficiency and the system administration amount of energy saving expression formula of load factor and technical energy saving scale Formula, this expression formula is generated by Real-time Feedback result matching, η_qiThe efficiency of expression equipment qi；Work as t_iValue It is when 0, to represent that electric system is newly-built system.

Real-time and Dynamic energy-saving of motor system accounting method the most according to claim 4, its feature Being, the technical energy saving in described step (6), management amount of energy saving, for whole production link All electric systems, calculate by manner below:

$E_{sys}={\Σ}_{j=1}^{j=N}\underset{\mathrm{\Δ}t\→\mathrm{\∞}}{\lim }{\∫}_{t_i}^{t_i+\mathrm{\Δ}t}{G}_{j-t_i}^{sys}\left(\mathrm{\η}\right(t,{\mathrm{\η}}_{1,}{\mathrm{\η}}_{2,}...{\mathrm{\η}}_{N,}{\mathrm{\η}}_1^{,},{\mathrm{\η}}_2^{,},...{\mathrm{\η}}_N^{,}),{\mathrm{\β}}_{t_i}(q_1,q_2,q_3,...,q_N\left)\right)dt$

$E_{tec}={\Σ}_{j=1}^{j=N}\underset{\mathrm{\Δ}t\→\mathrm{\∞}}{\lim }{\∫}_{t_i}^{t_i+\mathrm{\Δ}t}{G}_{j-t_i}^{tec}\left(\mathrm{\η}\right(t,{\mathrm{\η}}_{1,}{\mathrm{\η}}_{2,}...{\mathrm{\η}}_{N,}{\mathrm{\η}}_1^{,},{\mathrm{\η}}_2^{,},...{\mathrm{\η}}_N^{,}),{\mathrm{\β}}_{t_i}(q_1,q_2,q_3,...,q_N\left)\right)dt$

In formula, E_sysAnd E_tecRepresenting enterprise-oriented system management amount of energy saving and technical energy saving, η represents system System efficiency, η₁-η_NThe efficiency of expression equipment 1 to equipment N and η '₁To η '_NRepresent electric system equipment Between transmission efficiency；J represents equipment number, and N represents the equipment total amount in current motor system；t_iRepresent In the moment of initial calculation amount of energy saving, Δ t represents assessment period length；Represent in the load that the ti moment is corresponding Rate expression formula；WithRepresent t_iThe system administration amount of energy saving expression formula of moment J equipment and technology joint Derivation of energy formula, this expression formula is generated by Real-time Feedback result matching.

7. application Real-time and Dynamic energy-saving of motor system accounting method described in any one of claim 1-6 Monitoring system, it is characterised in that include mechanical floor, Intelligent Instrument top layer, key-course, data transmission Layer, intelligent gateway and information and monitor supervision platform；

Intelligent Instrument top layer is for the interior input power of each equipment of collecting device layer, output and calculates Distinct device load factor, efficiency in real time motor system；

Data transfer layer is used for transmitting data and calculated real time load rate, the efficiency data of collection, For transmitted in both directions structure, receive the data that Intelligent Instrument top layer is uploaded simultaneously, be sent to intelligent gateway, also The control data down transmission sent by intelligent gateway is to key-course；

Information and monitor supervision platform are for being analyzed the collection data that intelligent gateway transmission comes and form phase The energy-saving and emission-reduction control strategy answered, and by intelligent gateway, key-course, mechanical floor is controlled；Also For display in real time, monitor dynamic electric system in real time.