CN209514685U - A kind of high-low pressure energy saving verifying system online - Google Patents

Abstract

The utility model relates to a kind of high-low pressure energy saving verifying systems online, it is administered which solve existing power-saving technique power savings good and the bad difficulty point, the bad measuring and calculating of power saving rate, energy conservation and the technical problems such as is difficult to assess, it is equipped with main circuit and control detection device, main circuit is equipped with by-pass switch and battery saving arrangement, by-pass switch control battery saving arrangement is switched in or out in main circuit, main circuit power consumption parameter when control detection device detection battery saving arrangement is switched in or out.The utility model should can be formulated in industrial energy-saving device and energy-saving device control strategy extensively.

Description

A kind of high-low pressure energy saving verifying system online

Technical field

The utility model relates to a kind of test devices of electrical property, more particularly to a kind of high-low pressure online energy conservation verifying system System.

Background technique

The electric energy of industrial consumption crosses the 2/3 of total amount at present, and industrial department is that one of progress economizing on energy and electricity investment is special Promising field.But the old equipment and technique that the equipment and technique that many enterprises use still use decades ago deposit electricity It can waste than more serious, the utilization rate of the industrial products energy only has 32% to 34%, and in traditional concept, the electricity charge are uncontrollable With saving, this is because the limitation of traditional science can not provide effective total solution.

With the application popularization of various sophisticated technologies, the electric cost of enterprise is available to have by means of high-tech means Effect control.But power-saving Retrofit implement during, there is due to power utilization environment difference, power-saving Retrofit equipment quality and Economize on electricity control strategy it is irregular and caused by power savings good and the bad difficulty point, the bad measuring and calculating of power saving rate, energy conservation administer and be difficult to assess Deng the serious bottleneck problem for restricting economize on electricity industry development.

Summary of the invention

The utility model in order to solve the bad measuring and calculating of existing power-saving technique power savings good and the bad difficulty point, power saving rate, energy conservation is controlled Reason such as is difficult to assess at the technical problems, provides a kind of online energy conservation verifying system and method for high-low pressure, which passes through to for electricity consumption Analogue simulation carries out combined power monitoring, and energy-saving device and economize on electricity control strategy are tested and assessed.

The utility model provides a kind of high-low pressure energy saving verifying system online, is equipped with main circuit and control detection device, Main circuit is equipped with by-pass switch and battery saving arrangement, and by-pass switch control battery saving arrangement is switched in or out in main circuit, control inspection Survey main circuit power consumption parameter when device detection battery saving arrangement is switched in or out.

Preferably, main circuit is equipped with primary voltage adjuster, step-up transformer and fictitious load, and control detection device is equipped with Electric power monitoring module, switching value acquisition module, load control module, Multi-function experimental operation Demonstration table and relay module, electricity Power monitoring modular detects the power consumption parameter of main circuit, and switching value acquisition module acquires main circuit switch state, load control module Realize fictitious load load adjust, Multi-function experimental operate Demonstration table monitoring system function and power savings assessment, driving after Electrical appliance module controls the sectional-regulated control of main circuit.

Preferably, Multi-function experimental operation Demonstration table is equipped with slave computer, man-machine interaction display screen and input key, slave computer Issue command signal and export and give relay module control main circuit, electric power monitoring module and slave computer by data/address bus connect into Row data communication connection.

Preferably, control detection device is additionally provided with host computer and large-screen display, and host computer and large-screen display pass through number It is connect according to bus connection with Multi-function experimental operation Demonstration table.

Preferably, electric power monitoring module is connected as CAN bus with slave computer data/address bus and connect；Host computer and large-size screen monitors are shown Device data/address bus is connected as the connection of 485 serial ports.

Preferably, main circuit is additionally provided with the step-down transformer in parallel with step-up transformer, step-up transformer and downconverter Device converts contact cabinet by high-low pressure and accesses main circuit.

Preferably, fictitious load includes that the adjustable excited motor of load, unbalanced load, threephase asynchronous and electric power are humorous Wave generating device.

The beneficial effects of the utility model are:

1. the utility model is equipped with primary voltage adjuster, simulation primary voltage fluctuation adjusts separately corresponding different electricity Operating condition is pressed, best power saving rate is calculated；

2. the utility model is equipped with electric power monitoring module, to data comparison under data under economize on electricity operating condition and bypass condition, meter Three-phase imbalance variation is calculated, battery saving arrangement regulation effect is detected；

3. the utility model is equipped with harmonic wave generating device, by exporting different wave subharmonic, come observe electricity-saving state with The harmonic wave numerical value change of bypass condition, to determine battery saving arrangement performance superiority and inferiority；

4. the utility model is additionally provided with step-up transformer and step-down transformer, by high pressure resistant test, circuit electrical is checked Component insulation, pressure-resistant situation, guarantee the stable operation of energy-saving device；

5. the control detection device of the utility model can utilize slave computer, intelligent energy-saving control is realized, according to acquisition Data export control signal to relay system is exported after carrying out calculation optimization, control main circuit battery saving arrangement by output relay system Realize that automatic segmentation adjusts and completes the security monitorings such as alarm and protection work.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the main circuit electrical connection schematic diagram of the utility model；

Fig. 3 is the operational flowchart of the utility model；

Fig. 4 a be the utility model access battery saving arrangement before A phase voltage waveform；

Fig. 4 b be the utility model access battery saving arrangement after A phase voltage waveform.

Accompanying drawings symbol description:

100. power supply unit；101. primary voltage adjuster；102. high-low pressure conversion contact cabinet；103. step-up transformer； 104. step-down transformer；105. by-pass switch；106. battery saving arrangement；200. fictitious load；201. threephase asynchronous；202. Load adjustable excited motor；203. three-phase imbalance load；204. harmonic wave generating device；301. monitoring host computer；302. monitoring are big Screen；303. Multi-function experimentals operate Demonstration table；3031. inputting key；3032. slave computer；3033. man-machine interaction display screen； 304. relay module；305. electric power monitoring modules；306. switching value acquisition module；307. load control system；308.CAN Bus.

Specific embodiment

With reference to the accompanying drawings and examples to can the utility model be described further so that the affiliated technology of the utility model The technical staff in field can be easy to implement the utility model.

As shown in Figure 1, the utility model includes main circuit and control detection device.Main circuit includes 100 He of power supply unit Fictitious load 200, control detection part include monitoring host computer 301, monitoring large-size screen monitors 302, Multi-function experimental operation Demonstration table 303, Relay module 304, electric power monitoring module 305, switching value acquisition module 306 and load control system 307.Multi-function experimental behaviour Make Demonstration table 303 and mainly realize that monitoring function and power savings assessment calculate, is shown by control slave computer 3032, human-computer interaction Screen 3033 and input key 3031 form, by slave computer 3032 issue command signal export to relay module 304 for pair Main circuit state implements control setting, feedback monitoring host computer 301 and monitoring large-size screen monitors after slave computer 3032 carries out data processing 302, shown and monitored alarm.

Electric power monitoring module 305 detects the three of main circuit by the current transformer and voltage transformer being connected with major loop Phase alternating voltage, electric current, through comprehensive analysis finally exportable electric current, voltage value, voltage unbalance factor, it is active and reactive, view in function Rate and power factor value, every 2-25 order harmonic components；Electric power monitoring module 305 and slave computer 3032 by CAN bus 308 into Row data communication handles the data transmission of monitoring to slave computer 3032.

Load control system 307 mainly realize fictitious load 200 load adjust, including to threephase asynchronous 201, The load for loading adjustable excited motor 202, three-phase imbalance load 203 and harmonic oscillator 204 is adjusted.

As shown in Fig. 2, main circuit power supply unit 100 include primary voltage adjuster 101, high-low pressure conversion contact cabinet 102, Step-up transformer 103, step-down transformer 104 and power saving apparatus, power saving apparatus include by-pass switch 105 and battery saving arrangement 106, section Electric installation 106 is electric power saving transformer, and the electricity-saving state of system is adjusted by sectional-regulated control, realizes online economize on electricity effect The comparison of fruit；Primary voltage adjuster 101 is directly connected to power supply grid, is used for simulation system primary voltage, height of connecting thereafter Low pressure conversion contact cabinet 102, high-low pressure conversion contact cabinet 102 are made of dual pressure control switch, are respectively turned on step-up transformer 103 and step-down transformer 104, step-up transformer 103 realizes that 400-10000 lies prostrate high voltage adjusting, and step-down transformer 104 is realized The voltage of 10000-0 volt is adjusted, and step-up transformer 103 and step-down transformer 104 complete the test of 106 security evaluation of battery saving arrangement, It is exported by connecting fictitious load 200 after power saving apparatus, loads environment for analogue simulation；Fictitious load 200 includes three-phase Asynchronous motor 201, the adjustable excited motor 202 of load, three-phase imbalance load 203 and harmonic wave generating device 204.

The slave computer 3032 of Multi-function experimental operation Demonstration table 303 receives the monitoring data of the transmission of electric power monitoring module 305, By processing, slave computer 3032 issues associated command signal and exports to relay module 304 for setting to main circuit implementation control It sets, setting, the conversion of by-pass switch 105 setting, fictitious load of contact 102 dual pressure control switch of cabinet is converted including high-low pressure 200 connect control and the sectional-regulated control of battery saving arrangement 106, and manual and intelligence can be achieved in the sectional-regulated control of battery saving arrangement 106 Two ways can be regulated and controled, Multi-function experimental operation 303 display function of Demonstration table, which is mainly reflected in, receives electric power monitoring module 305 Various data and the various switch states acquired by switching value acquisition module 306 carry out data processing by slave computer 3032 After shown and monitored alarm.

The utility model provides a kind of high-low pressure energy saving verification method online, simulates electricity by primary voltage adjuster 101 Net fluctuation is occurred by threephase asynchronous 201, the adjustable excited motor 202 of load, three-phase imbalance load 203 and harmonic wave Device 204 builds load environment, by battery saving arrangement 106 and 105 parallel connection of by-pass switch be serially connected with power supply and fictitious load 200 it Between, electrical parameters, the by-pass switches 105 such as voltage, electric current, the active, harmonic wave of supply side are detected by control detection device and are placed in side Trackside is tested the power consumption parameter of non-supernumerary segment electric installation 106, is later disconnected by-pass switch 105, while adjusting power-saving device 106 Parameter obtains under different electricity consumptions and load environment, 106 parameter of battery saving arrangement and power saving rate and electropollution regulation effect by comparing Relationship.

As shown in figure 3, being the operational flowchart of the utility model, the operating process of the utility model are as follows:

Step 1: power utilization environment is configured according to enterprise's load and power supply grid situation；

Step 2: starting bypasses and tests electrical parameter by electric power monitoring module 305；

Step 3: identifying system state；

Step 4: being compared with enterprise practical state, meets virtual condition and enters in next step, the 1st is returned if not meeting Step, reconfigures load and power supply grid situation；

Step 5: record parameter current is D；

Step 6: it disconnects by-pass switch 105 and moves on to the work of battery saving arrangement 106；

Step 7: adjusting power-saving device 106, recording status is A, B, C respectively；

Step 8: the calculating ratio more electricity saving work of device 106 front and back power consumption parameter obtains the power saving rate of system, electricity consumption is uneven Degree and total harmonic distortion compare.

The utility model is fluctuated by 101 simulating grid of primary voltage adjuster, by load adjustable excited motor 202, Unbalanced load 203 and harmonic wave generating device 204 build load environment, by battery saving arrangement 106 and the concatenation in parallel of by-pass switch 105 Between power supply and load, the electrical parameters such as voltage, electric current, the active, harmonic wave of supply side are detected by control detection device, are connected By-pass switch 105 is tested the power consumption parameter of non-supernumerary segment electric installation 106, is later disconnected by-pass switch 105, while adjusting economize on electricity 106 parameter of device obtains under different electricity consumptions and load environment, 106 parameter of battery saving arrangement and power saving rate and electropollution by comparing The relationship of regulation effect.

The utility model controls Multi-function experimental operation Demonstration table 303, relay module 304, electric power prison in detection part Survey module 305, switching value acquisition module 306 and load control system 307 can also constitute load intelligent energy-saving algorithm and test online Card device.Switching value acquisition module 306 can carry out analog quantity to system data and the data of digital quantity acquire, and analog data is adopted Integrate channel as meter transformer, electric power monitoring module 305 is eventually by data bus transmission to slave computer 3032, digital quantity number It is that digital quantity switch is directly connected with the data acquisition interface of slave computer 3032 according to acquisition channel, acquisition by-pass switch 105, emergency The state of switch and sectional-regulated switch；Slave computer 3032 by data processing digital-quantity output interface directly with control relay The coil of device module 304 is connected, and realizes switch control, the final movement for controlling main circuit and protecting each contactor of circuit；It is the next Machine 3032 interacts display and control with the realization of man-machine interaction display screen 3033 by PORT COM, while also receiving and pressing from input The input control of key 3031.

It controls detection device and acquires real-time data, according to the data acquired in real time, after carrying out Data Integration, qualitative analysis It is conveyed to slave computer 3032 by software interface, intelligent energy-saving optimization is carried out and calculates；It is closed by the limitation of measuring point parameter area, parameter The setting of connection property confidence interval and parameter logistics rule analysis and calculating export corresponding control signal to digital output port, control Corresponding relay module 304 is made, the online piecewising algorithms adjusting and the instant processing to unusual service condition for realizing battery saving arrangement 106. By the exploitation of automatic regulating apparatus in control detection device, the verification of achievable intelligent algorithm keeps test operation more convenient.

Shown in Fig. 4 a-4b, be respectively the utility model access battery saving arrangement 106 before A phase voltage waveform and access economize on electricity A phase voltage waveform schematic diagram after device 106, the utility model effectively solve primary voltage fluctuation, it is ensured that primary voltage is stablized.This Utility model can be to electricity consumptions situations such as primary voltage fluctuation, three-phase imbalance state, harmonic wave interference and comprehensive state of disturbance Simulated experiment is carried out, while the utility model can also test the safe operation of energy-saving device.Below by way of different embodiments The test method of various a single states is illustrated.

Embodiment 1: system primary voltage is made to keep permanent by adjusting primary voltage adjuster 101 power network fluctuation It is fixed, such as 400V；Power load collocation is kept constant, and resistive load and inductive load hold mode are constant.Then, it will produce Battery saving arrangement 106 be connected in main circuit；The gear of battery saving arrangement 106 is manually adjusted at this time, e.g., when tri- gears of A, B, C, Three gears respectively correspond different voltage operating conditions.The active power under three gear operating conditions is recorded respectively, is obtained How much 3 groups of data out, this 3 groups of data respectively represent under electricity-saving state the utility model electricity consumption.Then by battery saving arrangement 106 The method of operation is switched to " bypass " state, and by-pass switch 105 is closed, at the same time under, recording 1 group of data, this 1 group We are labeled as D to data, represent the utility model electricity consumption under city's electricity condition number.We are by preceding 3 groups of data and last Group data compare, it may be assumed that (D-A)/D*100%, (D-B)/D*100%, (D-C)/D*100% have calculated power saving rate.

Embodiment 2: for three-phase imbalance, three-phase imbalance be it is generally existing in commercial power system, show themselves in that The imbalance between imbalance, three-phase current, presence of zero-sequence current between three-phase voltage etc., some degrees of unbalancedness are up to 20% More than, seriously affect the whole efficiency and safety of system power.

Firstly, electricity system is carried out voltage adjustment in a stable state, such as 400V, in electricity system, close Reason allotment support structures, put into single-phase load electric heater 3 kilowatts one, connect threephase asynchronous machine 11 kilowatts one, system is shone It is bright several；Meanwhile the battery saving arrangement 106 produced being connected in main circuit, and it is constant to save any gear；It is artificial at this time to adjust The power of whole single-phase load, and recorded under 106 operating status of battery saving arrangement by the utility model, the system under different loads Three-phase imbalance delta data；Later, it is adjusted to battery saving arrangement 106 " to bypass " state；At this point, repeating adjustment individual event load Power, change system three-phase imbalance condition, then corresponding data are recorded by electric power monitoring module 305.Finally, to section Data comparison under data and bypass condition under electrician's condition, calculates three-phase imbalance variation, to reach detection battery saving arrangement 106 The purpose of regulation effect.

Embodiment 3: for harmonic pollution, harmonic pollution is very big to industrial production system harm, and the utility model is to system Harmonic wave control situation can be detected effectively, can be evaluated and optimized to harmonic wave control scheme.Specific steps are as follows: harmonic wave occurs Device 204 is connected in parallel in electricity system, by exporting different 2-25 subharmonic, to observe the humorous of electricity-saving state and bypass condition Wave numerical value change.By comparison, to determine 106 performance superiority and inferiority of battery saving arrangement, quality.

Embodiment 4: the stable operation for energy-saving device, the stable operation of energy-saving device are the link of most critical, this reality With the novel high pressure resistant test for carrying out up to 400-10000V to battery saving arrangement 106 by step-up transformer 103, check electrical Component insulation, pressure-resistant situation carry out test record for the service condition of different voltages respectively；After the completion of boosting test, pass through High-low pressure conversion contact cabinet 102, switchs to decompression test, in the case of 400-300V, observes 106 operating condition of battery saving arrangement.Mould Quasi- operation of power networks operating condition, is not 300V or less generally and tests.

The above is not intended to limit the utility model only to the preferred embodiment of the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.All claims in the utility model Limit range in, any modification, equivalent substitution, improvement and etc. done, should be covered by the scope of the present utility model within.

Claims (7)

1. a kind of high-low pressure energy saving verifying system online, characterized in that it is equipped with main circuit and control detection device, the main electricity Road is equipped with by-pass switch and battery saving arrangement, and the by-pass switch controls the battery saving arrangement and accesses or break in the main circuit It opens, the control detection device detects main circuit power consumption parameter when the battery saving arrangement is switched in or out.

2. high-low pressure according to claim 1 energy saving verifying system online, which is characterized in that the main circuit is equipped with inlet wire Voltage regulator, step-up transformer and fictitious load, the control detection device are equipped with electric power monitoring module, switch acquisition mould Block, load control module, Multi-function experimental operation Demonstration table and relay module, the electric power monitoring module detect the main electricity The power consumption parameter on road, the switching value acquisition module acquire the main circuit switch state, and the load control module realizes institute The load for stating fictitious load is adjusted, the Multi-function experimental operation Demonstration table monitoring system function and power savings assessment, driving The relay module controls the sectional-regulated control of main circuit.

3. high-low pressure according to claim 2 energy saving verifying system online, which is characterized in that the Multi-function experimental operation Demonstration table is equipped with slave computer, man-machine interaction display screen and input key, the slave computer issue command signal export to it is described after Electrical appliance module controls the main circuit, and the electric power monitoring module connect progress data by data/address bus with the slave computer and leads to News connection.

4. high-low pressure according to claim 3 energy saving verifying system online, which is characterized in that the control detection device is also Equipped with host computer and large-screen display, the host computer and large-screen display pass through data/address bus connection and the Multi-function experimental Operate Demonstration table connection.

5. high-low pressure according to claim 4 energy saving verifying system online, which is characterized in that the electric power monitoring module with The slave computer data/address bus is connected as CAN bus connection；The host computer and large-screen display data/address bus are connected as 485 strings Mouth connection.

6. according to any high-low pressure of claim 2-5 energy saving verifying system online, which is characterized in that the main circuit is also Equipped with the step-down transformer in parallel with the step-up transformer, the step-up transformer and step-down transformer are converted by high-low pressure It gets in touch with cabinet and accesses the main circuit.

7. high-low pressure according to claim 6 energy saving verifying system online, which is characterized in that the fictitious load includes negative Carry adjustable excited motor, unbalanced load, threephase asynchronous and electric harmonic generating device.