CN103187735A - Bidirectional intelligent gateway device for distributed new energy grid connection - Google Patents

Bidirectional intelligent gateway device for distributed new energy grid connection Download PDF

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CN103187735A
CN103187735A CN2013101450947A CN201310145094A CN103187735A CN 103187735 A CN103187735 A CN 103187735A CN 2013101450947 A CN2013101450947 A CN 2013101450947A CN 201310145094 A CN201310145094 A CN 201310145094A CN 103187735 A CN103187735 A CN 103187735A
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power
electric energy
electrical network
distributed new
quality
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CN103187735B (en
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程玉华
毛汉华
黄建国
白利兵
陈凯
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University of Electronic Science and Technology of China
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University of Electronic Science and Technology of China
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Abstract

The invention discloses a bidirectional intelligent gateway device for distributed new energy grid connection. The generating capacity of a distributed new energy power generating set is surplus or insufficient, if the generating capacity reaches the set threshold value, a request is sent for grid connection; then an electric power dispatch system gives an answer for grid connection according to uploaded electric energy mass parameters, the surplus amount of the generated electricity and the operation situation of a power grid, if the grid connection request is approved, an inverter of the new energy power generating set and a power grid are connected through an actuating mechanism, and after grid connection, the electric energy transferred by the power grid or the consumed power grid electric energy is measured by an electric energy bidirectional charging device, so that the problem of grid connection of the distributed new energy generating set is solved. Furthermore, after grid connection, if the electricity energy mass parameters do not meet the grid connection requirement, the power grid accessing is disconnected or the output of the inverter of the distributed new energy power generating set is disconnected, so that the adverse impact of grid connection on the power grid quality and the power grid stability is lowered, and the safety of the power grid is effectively guaranteed.

Description

A kind of two-way intelligent gateway device that is incorporated into the power networks for distributed new
Technical field
The invention belongs to the intelligent grid technical field, more specifically say, relate to a kind of two-way intelligent gateway device that is incorporated into the power networks for distributed new.
Background technology
Intelligent grid is the new product of modern power network technical development, it is that advanced person's sensing measurement technology, ICT (information and communication technology), analysis decision technology, automatic control technology and electricity power technology are combined, and and novel modernized electrical network that form integrated with electrical network infrastructure device height.Its objective is information flow, electrical energy flows and Business Stream in the electrical network are unified, thereby control the equilibrium of supply and demand of electric energy dynamically, to realize whole power system stability, reliable, environmental protection, economy, operation efficiently.In recent years, along with the extensive use of various advanced technologies in electrical network, the intelligent inexorable trend that has become power network development, the development intelligent grid is worldwide built consensus.
Meanwhile, along with the development of new energy technology, the generation of electricity by new energy device also obtains certain popularization.The distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) refers to distributed power generation device that photovoltaic module or wind-force assembly, inverter, storage battery etc. are formed, in order to become electric energy to satisfy household electricity or little demand solar energy or wind energy transformation.Generation of electricity by new energy mainly is divided into stand alone generating system and grid-connected system, under the main trend of intelligent grid technical development, being incorporated into the power networks as the distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) of stand alone generating system seems particularly important, gives electrical network and switch to mains supply under generating electric energy situation not enough or of low quality to realize unnecessary power delivery.
Nowadays, being incorporated into the power networks of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) is still the bottleneck problem in this field, also is the problem that presses for solution.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of two-way intelligent gateway device that is incorporated into the power networks for distributed new is provided, to solve the distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) problem that is incorporated into the power networks, realize the function that unnecessary power delivery is given electrical network and switch to mains supply under generating electric energy situation not enough or of low quality.
For realizing above purpose, the present invention is used for the two-way intelligent gateway device that distributed new is incorporated into the power networks, and it is characterized in that, comprising:
One electric energy quality real-time monitoring analysis module, be used for the quality of power supply and the generated output of the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter are monitored, obtain power quality parameter and generated output in real time, simultaneously the power consumption situation of load is monitored, obtain electric energy loaded consumption, according to generated output and electric energy loaded consumption, obtain distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) generating surplus capacity or in shortage, if when reaching preset threshold, then send the request of being incorporated into the power networks;
After being incorporated into the power networks, power quality parameter does not reach and is incorporated into the power networks when requiring, can cause electric network pollution as wave distortion, etc. asynchronous with the mains frequency phase place, the electric energy quality real-time monitoring analysis module is according to the power consumption of load to requirement and the load of the quality of power supply, and output disconnects control signal and disconnects electrical network access or the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter;
One communication module, be used for communicating by the electric power dispatching system of powerline network and power monitoring department, upload power quality parameter, generating surplus capacity or in shortage and being incorporated into the power networks request, receive electric power dispatching system according to upload power quality parameter, surplus capacity or in shortage and the operation of power networks situation is made is incorporated into the power networks and replys generates electricity;
One actuator, replying if be incorporated into the power networks is to agree to insert electrical network, then actuator inserts electrical network with the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter and load, if disagree with the access electrical network, then the output of electrical network and distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter and load are maintained off-state; Simultaneously, after being incorporated into the power networks, if actuator receives the disconnection control signal of electric energy quality real-time monitoring analysis module output, disconnect the output of electrical network or distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter immediately;
The two-way accounting module of one electric energy is used for inserting electric energy electric current and voltage-phase angle according to electrical network
Figure BDA00003096457900021
Size, real-time judge electrical network access power direction, and then determine that consuming the electrical network electric energy still is to the electrical network transmission of electric energy; And offset power consumption net electric energy or measure to the size of electrical network transmission of electric energy, realize two-way electric energy metrical function.
The object of the present invention is achieved like this:
The present invention is used for the two-way intelligent gateway device that distributed new is incorporated into the power networks, obtain distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) power quality parameter, generated output and electric energy loaded consumption in real time by the electric energy quality real-time monitoring analysis module, according to generated output and electric energy loaded consumption, obtain distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) generating surplus capacity or in shortage, if when reaching preset threshold, then send the request of being incorporated into the power networks; Electric power dispatching system is replied according to uploading being incorporated into the power networks that power quality parameter, generating surplus capacity and operation of power networks situation make then, if agree to insert electrical network, then by actuator distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter and electrical network are incorporated into the power networks, be incorporated into the power networks the two-way message accounting of back electric energy to the electrical network transmission of electric energy or consume the electrical network electric energy and measure, the problem thereby solution distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) is incorporated into the power networks.Simultaneously, after being incorporated into the power networks, power quality parameter does not reach and is incorporated into the power networks when requiring, as wave distortion, the asynchronous electric network pollution that causes with the mains frequency phase place, the electric energy quality real-time monitoring analysis module is according to the requirement of load to the quality of power supply, output disconnects control signal and disconnects electrical network access or the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter, is incorporated into the power networks to the negative effect of power grid quality, grid stability thereby reduce, and effectively ensures the safety of electrical network.
In addition, after being incorporated into the power networks, the electric energy quality real-time monitoring analysis module is with the power quality parameter that obtains, generating surplus capacity or in shortagely send to electric power dispatching system in real time by communication module, the distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) is carried out remote monitoring, if do not reach electric power dispatching system to requirement and the power scheduling requirement of the quality of power supply, then send order to the electric energy quality real-time monitoring analysis module by communication module, according to the power consumption of load to requirement and the load of the quality of power supply, output disconnects control signal and disconnects electrical network access or the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter by the electric energy quality real-time monitoring analysis module.
Advantage of the present invention and effect:
The present invention is used for the two-way intelligent gateway device that distributed new is incorporated into the power networks, and has solved the technical problem that the distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) effectively is incorporated into the power networks.This two-way intelligent gateway is realized the real-time monitoring analysis of the distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) quality of power supply, obtain power quality parameter and the generating surplus capacity or in shortage of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT), and parameter is uploaded to the electric power dispatching system of power monitoring department by communication module, both can monitor in real time the quality of power supply, also can finish the scheduling peak regulation of electrical network simultaneously according to concrete generating electricity consumption situation.In addition, realized two-way electric energy tariffing function for the two-way intelligent gateway device that distributed new is incorporated into the power networks, realization is given electrical network with distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) electric power more than needed anti-" selling ", can improve the enthusiasm that the user promotes the distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT), make that also the application of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) electric power is more economical, efficient, environmental protection.Simultaneously, also significant for the development of intelligent grid.
Description of drawings
Fig. 1 is the schematic diagram that the present invention is used for two-way intelligent gateway device one embodiment that distributed new is incorporated into the power networks;
Fig. 2 shown in Figure 1 is used for two-way intelligent gateway device that distributed new is incorporated into the power networks at the application schematic diagram of photovoltaic generation;
Fig. 3 is the two-way intelligent gateway device circuit structured flowchart that distributed new is incorporated into the power networks that is used for shown in Figure 1.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described, so that those skilled in the art understands the present invention better.What need point out especially is that in the following description, when perhaps the detailed description of known function and design can desalinate main contents of the present invention, these were described in here and will be left in the basket.
Fig. 1 is the schematic diagram that the present invention is used for two-way intelligent gateway device one embodiment that distributed new is incorporated into the power networks, and wherein dotted portion is power line.
In the present embodiment, as shown in Figure 1, the present invention comprises electric energy quality real-time monitoring analysis module 1, communication module 2, actuator 3, the two-way accounting module 4 of electric energy, data memory module 5 and log pattern 6 for the two-way intelligent gateway device that distributed new is incorporated into the power networks.
The quality of power supply and the generated output of the output of 1 pair of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) of electric energy quality real-time monitoring analysis module inverter are monitored, obtain power quality parameter and generated output in real time, simultaneously the power consumption situation of load is monitored, obtain electric energy loaded consumption, according to generated output and electric energy loaded consumption, obtain distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) generating surplus capacity or in shortage, if when reaching preset threshold, then send the request of being incorporated into the power networks.
In the present embodiment, electric energy quality real-time monitoring analysis module 1 comprises inverter interface, data acquisition interface, data in real time Treatment Analysis module, finish conversion, the collection to the inverter output voltage electric current and handle Treatment Analysis in real time, realize power quality parameter and generated output parameter monitoring and processing.
Communication module 2 communicates by the electric power dispatching system of powerline network and power monitoring department, upload power quality parameter, generating surplus capacity or in shortage and being incorporated into the power networks request, receive electric power dispatching system according to upload power quality parameter, surplus capacity or in shortage and the operation of power networks situation is made is incorporated into the power networks and replys generates electricity
If actuator 3 is incorporated into the power networks and replys is to agree to insert electrical network, then actuator inserts electrical network with the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter and load, if disagree with the access electrical network, then the output of electrical network and distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter and load are maintained off-state.
After being incorporated into the power networks, power quality parameter does not reach and is incorporated into the power networks when requiring, can cause electric network pollution as wave distortion, etc. asynchronous with the mains frequency phase place, at this moment, electric energy quality real-time monitoring analysis module 1 is according to the power consumption of load to requirement and the load of the quality of power supply, and output disconnects control signal and disconnects electrical network access or the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter.In the present embodiment, if the quality of power supply satisfies the power consumption that the requirement of load and generated output can loads, then disconnect electrical network and insert, otherwise, the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter disconnected.
In addition, under the bigger situation of the power consumption of load, if directly insert electrical network, can directly cause electrical network to cause instability, therefore, when if the quality of power supply of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) can not satisfy requiring of load, 1 output of electric energy quality real-time monitoring analysis module disconnects control signal and disconnects the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter, when switching to mains supply, need to send the request of access and required power consumption by communication module 2 to electric power dispatching system, if electrical network meets the demands, then actuator's 3 electrical networks insert, if do not satisfy, then actuator's 3 electrical networks and load disconnect.
If actuator receives the disconnection control signal of electric energy quality real-time monitoring analysis module output, disconnect the output of electrical network or distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter immediately.As shown in Figure 1, in the present invention, disconnecting the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter is that actuator's output disconnection control signal is given distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter by actuator's execution, disconnects its output.In concrete enforcement, also can directly export the disconnection control signal by electric energy quality real-time monitoring analysis module 1 and give distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter, disconnect its output.
The two-way accounting module 4 of electric energy inserts electric energy electric current and voltage-phase angle according to electrical network
Figure BDA00003096457900055
Size, real-time judge electrical network access power direction, and then determine that consuming the electrical network electric energy still is to the electrical network transmission of electric energy; And offset power consumption net electric energy or measure to the size of electrical network transmission of electric energy, realize two-way electric energy metrical function.
In the present embodiment, 4 pairs of electrical networks of the two-way accounting module of electric energy insert the electric energy electric current and voltage is monitored, and electrical network inserts electric energy electric current and voltage-phase angle
Figure BDA00003096457900051
Size, real-time judge electrical network access power direction, and then determine that consuming the electrical network electric energy still is to the electrical network transmission of electric energy.
In the present embodiment, access power refers to that power is arranged, and active power refers to the mean value of instantaneous power in one-period of AC energy, and namely alternating voltage u (t) and alternating current i (t) instantaneous value amasss mean value in one-period.Under the sinusoidal ac signal situation, input electric energy voltage and current signal is:
u ( t ) = 2 U m sin ( ωt ) - - - ( 1 )
Figure BDA00003096457900053
U in the formula m, I mBe respectively electric energy voltage, current effective value
ω is angular frequency
Figure BDA00003096457900054
Be the voltage and current phase difference
According to the instantaneous power p of power definition system be:
Figure BDA00003096457900062
Figure BDA00003096457900063
Calculate active power P thus:
Figure BDA00003096457900065
Figure BDA00003096457900066
To measure gained voltage and current value and after corresponding calculation process, draw the phase place angle
Figure BDA00003096457900067
Calculate formula in conjunction with above-mentioned active power and can judge the electric energy direction, thus certain electric energy metrical pattern: a) when the phase place angle
Figure BDA00003096457900068
Satisfy
Figure BDA00003096457900069
Or
Figure BDA000030964579000610
It is power factor
Figure BDA000030964579000611
The time, showing that the user consumes the electrical network electric energy, be forward electric energy metrical pattern this moment, forward electric energy adder constantly adds up and realizes the forward electric energy tariffing in conjunction with real-time rate; B) when the phase place angle
Figure BDA000030964579000612
Satisfy
Figure BDA000030964579000613
It is power factor
Figure BDA000030964579000614
The time, showing the user to the electrical network transmission of electric energy, be the reverse power quantitative model this moment, the reverse power adder constantly adds up and charges in conjunction with the reverse power of rate realization in real time simultaneously.
Data memory module 5 is used for the record of quality of power supply basic parameter, harmonic parameters and electric energy event statistics data, log pattern 6 is recorded in daily record for will be incorporated into the power networks influential operation and task executions etc., in order to operation behavior and the task executions situation of replaying user, the operation and the executive problem that occur for device provide the analysis foundation.
Fig. 2 shown in Figure 1 is used for two-way intelligent gateway device that distributed new is incorporated into the power networks at the application schematic diagram of photovoltaic generation.
In the present embodiment, as shown in Figure 2, the distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) comprises photovoltaic module, storage battery and inverter.When generation of electricity by new energy device large-scale application, each Blast Furnace Top Gas Recovery Turbine Unit (TRT) realizes the equilibrium of supply and demand of electric power by the information interaction of communication module realization with the supervision dispatching patcher of power monitoring department by the scheduling of power monitoring department.In addition, this two-way intelligent gateway device has been realized flowing into and the bidirectional measuring that flows out electric energy, thereby can realize the function of two-way charging.
The principle of the main consideration that the two-way intelligent gateway device that is incorporated into the power networks for distributed new inserts:
(1), use mainly to as if the distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT), as photovoltaic generation, wind power generation.
(2), the electric pressure of Ying Yonging mainly is family expenses civil power grade.
(3), pass through the approval of electric power authorities, access powerline network.
Fig. 3 is the two-way intelligent gateway device circuit structured flowchart that distributed new is incorporated into the power networks that is used for shown in Figure 1.
In the present embodiment, as shown in Figure 3, partly be inverter interface, data acquisition interface and actuator 3 with the high voltage of electric energy quality real-time monitoring analysis module 1 and be that data in real time Treatment Analysis module, data memory module 5 and log pattern 6 adopt the power supply of duplicate supply isolation methods with electric energy quality real-time monitoring analysis module 1.Data in real time Treatment Analysis module, data memory module 5 and log pattern 6 are realized by the governor circuit module that ARM and DSP dual core processor constitute.
This device adopts dual microprocessors, DSP nuclear is mainly used in data acquisition and handles computing, ARM nuclear is mainly as the hardware platform of built-in Linux operating system, peripheral additional have clock circuit, reset circuit, jtag interface circuit and RAM and FLASH memory circuitry, the groundwork circuit of formation dual microprocessors.
The DSP end of governor circuit module is mainly finished electrical energy parameter sampling, electrical energy parameter calculation process and electric energy event calculation process, and for ARM end business realizing provides data source, its main business comprises:
1, electric energy quality monitoring analysis
This business is mainly finished monitoring analysis and the demonstration thereof of various power quality parameters, mainly contains basic parameter monitoring analysis: frequency, electric current and voltage deviation, effective value, active power, reactive power, power factor (PF), degree of unbalance; The monitoring analysis of harmonic parameters: electric current and voltage each harmonic amplitude and phase place, a harmonic wave, each harmonic active power, power factor (PF), harmonic wave total distortion; The electric energy event monitoring is analyzed: transient overvoltage, voltage rise temporarily, fall temporarily, flickering; Show: the graphical demonstration of each electrical energy parameter Monitoring Data demonstration, voltage/current Wave data, the block diagram of each harmonic show.
2, data storage
This business is mainly finished the record to quality of power supply basic parameter, harmonic parameters and electric energy event statistics data, is stored in the external memory devices such as SD card or hard disk, in order to guarantee long data record.
3, data are handled
This business mainly is that the parameters of electric power data are processed into the master pattern data, realizes the two-way information interaction of electric energy quality real-time monitoring analysis module 1 and electric power dispatching system, to finish the electric energy scheduling of being incorporated into the power networks.When distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) supply electric energy satisfies loading demand and also has electric energy more than needed simultaneously, can send the application of being incorporated into the power networks to electric power dispatching system, information such as power quality parameter, generating surplus capacity and the request of being incorporated into the power networks are sent to electric power dispatching system, electric power dispatching system is incorporated into the power networks situation to calculating when according to real-time this locality, thereby makes judgement.Require then electric power dispatching system to send to be incorporated into the power networks to reply if satisfying is incorporated into the power networks, actuator 3 receive this be incorporated into the power networks reply after, replying if be incorporated into the power networks is to agree to insert electrical network, then actuator inserts electrical network with the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter and load, if disagree with the access electrical network, then the output of electrical network and distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter and load are maintained off-state, control energy storage device simultaneously and insert and realize power storage more than needed.
When the distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) is failed to satisfy fully loading demand and is distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) generation deficiency, this moment, electric energy quality real-time monitoring analysis module 1 proposed to insert the electrical network application by communication module 2 to electric power dispatching system, after dispatching patcher is received and is inserted application, through judgement, if agree, send to actuator 3 and to insert being incorporated into the power networks of allowing and reply, actuator 3 receives that this is incorporated into the power networks and the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter and load is inserted power grid control after replying and will insert electrical network.
4, parameter setting
This business is mainly finished the setting to the device parameter of collection, storage, communication aspects, content is set comprises customer parameter setting, conventional parameter setting and functional parameter setting.Customer parameter arranges contents such as main realization memory configuration, phase mark; Conventional parameter arranges contents such as main realization wiring configuration mode, speech selection; Functional parameter arranges the two-way charging rate of main realization electric energy, harmonic wave is monitored contents such as demonstration (as harmonic number, each harmonic distortion etc.) arranges, in order to meet the different needs.
5, gps clock is synchronous
This business mainly is to finish to the correction of device internal time according to universal time, for device provides high precision synchronous time reference benchmark, in order to the synchronism of assurance device electrical energy parameter monitoring analysis.
6, daily record record and inquiry
Log pattern 6 mainly is to finish be incorporated into the power networks influential operation and task executions etc. are recorded in the daily record, and in order to operation behavior and the task executions situation of replaying user, the operation and the executive problem that occur for device provide the analysis foundation,
7, supplementary service
This business mainly is the business interface that adds, to realize that the later stage is to maintenance, function renewal and the professional expansion of device.
Communication module adopts TI company to produce 10M/100M self adaptation Ethernet interface chip DP83640, and this chip has based on IEEE1588 chronometer time agreement, and is synchronous in order to the chronometer time of guaranteeing the Ethernet connection.Thereby can be good at the access to netwoks of data, for the network service of parameters of electric power provides hardware support alternately.
The TFT liquid crystal of liquid crystal and touch-screen sampling 800x480, and four-wire ohm touch screen interface can guarantee the display effect of enriching.
Actuator realizes access and the disconnection of inverter mainly by relay under autonomous feedback information or schedule information feedback.
Data acquisition interface signal conditioning circuit and AD sample circuit are realized the sampling to parameters of electric power such as electric current and voltages.
Although above the illustrative embodiment of the present invention is described; so that those skilled in the art understand the present invention; but should be clear; the invention is not restricted to the scope of embodiment; to those skilled in the art; as long as various variations appended claim limit and the spirit and scope of the present invention determined in, these variations are apparent, all utilize innovation and creation that the present invention conceives all at the row of protection.

Claims (5)

1. one kind is used for the two-way intelligent gateway device that distributed new is incorporated into the power networks, and it is characterized in that, comprising:
One electric energy quality real-time monitoring analysis module, be used for the quality of power supply and the generated output of the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter are monitored, obtain power quality parameter and generated output in real time, simultaneously the power consumption situation of load is monitored, obtain electric energy loaded consumption, according to generated output and electric energy loaded consumption, obtain distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) generating surplus capacity or in shortage, if when reaching preset threshold, then send the request of being incorporated into the power networks;
After being incorporated into the power networks, power quality parameter does not reach and is incorporated into the power networks when requiring, can cause electric network pollution as wave distortion, etc. asynchronous with the mains frequency phase place, the electric energy quality real-time monitoring analysis module is according to the power consumption of load to requirement and the load of the quality of power supply, and output disconnects control signal and disconnects electrical network access or the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter;
One communication module, be used for communicating by the electric power dispatching system of powerline network and power monitoring department, upload power quality parameter, generating surplus capacity or in shortage and being incorporated into the power networks request, receive electric power dispatching system according to upload power quality parameter, surplus capacity or in shortage and the operation of power networks situation is made is incorporated into the power networks and replys generates electricity;
One actuator, replying if be incorporated into the power networks is to agree to insert electrical network, then actuator inserts electrical network with the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter and load, if disagree with the access electrical network, then the output of electrical network and distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter and load are maintained off-state; Simultaneously, after being incorporated into the power networks, if actuator receives the disconnection control signal of electric energy quality real-time monitoring analysis module output, disconnect the output of electrical network or distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter immediately;
The two-way accounting module of one electric energy is used for inserting electric energy electric current and voltage-phase angle according to electrical network
Figure FDA00003096457800011
Size, real-time judge electrical network access power direction, and then determine that consuming the electrical network electric energy still is to the electrical network transmission of electric energy; And offset power consumption net electric energy or measure to the size of electrical network transmission of electric energy, realize two-way electric energy metrical function.
2. two-way intelligent gateway device according to claim 1, it is characterized in that, after being incorporated into the power networks, the electric energy quality real-time monitoring analysis module is with the power quality parameter that obtains, generating surplus capacity or in shortagely send to electric power dispatching system in real time by communication module, the distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) is carried out remote monitoring, if do not reach electric power dispatching system to requirement and the power scheduling requirement of the quality of power supply, then send order to the electric energy quality real-time monitoring analysis module by communication module, according to the power consumption of load to requirement and the load of the quality of power supply, output disconnects control signal and disconnects electrical network access or the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter by the electric energy quality real-time monitoring analysis module.
3. two-way intelligent gateway device according to claim 1, it is characterized in that, described electric energy quality real-time monitoring analysis module is according to the power consumption of load to requirement and the load of the quality of power supply, and output disconnects control signal disconnection electrical network access or distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter is output as:
If the quality of power supply satisfies the power consumption that the requirement of load and generated output can loads, then disconnect electrical network and insert, otherwise, disconnect the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter.
4. two-way intelligent gateway device according to claim 1 and 2, it is characterized in that, under the bigger situation of the power consumption of load, if directly insert electrical network, can directly cause electrical network to cause instability, therefore, when if the quality of power supply of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) can not satisfy requiring of load, the output of electric energy quality real-time monitoring analysis module disconnects control signal and disconnects the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter, when switching to mains supply, need send the request of access and required power consumption to electric power dispatching system by communication module, if electrical network meets the demands, then actuator's electrical network inserts, if do not satisfy, then actuator's electrical network and load disconnect.
5. two-way intelligent gateway device according to claim 1 is characterized in that, also comprises data memory module and log pattern;
Data memory module is used for the record of quality of power supply basic parameter, harmonic parameters and electric energy event statistics data, log pattern is recorded in daily record for will be incorporated into the power networks influential operation and task executions etc., in order to operation behavior and the task executions situation of replaying user, the operation and the executive problem that occur for device provide the analysis foundation;
The high voltage of described electric energy quality real-time monitoring analysis module partly is inverter interface, data acquisition interface and actuator and is that data in real time Treatment Analysis module, data memory module and log pattern adopt the power supply of duplicate supply isolation method with the electric energy quality real-time monitoring analysis module;
Data in real time Treatment Analysis module, data memory module and log pattern are realized by the governor circuit module that ARM and DSP dual core processor constitute.
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