CN102830277B - Signal measurement device and method for end system of generator - Google Patents
Signal measurement device and method for end system of generator Download PDFInfo
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- CN102830277B CN102830277B CN201210115837.1A CN201210115837A CN102830277B CN 102830277 B CN102830277 B CN 102830277B CN 201210115837 A CN201210115837 A CN 201210115837A CN 102830277 B CN102830277 B CN 102830277B
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Abstract
The invention discloses signal measurement device and method for an end system of a generator. The measurement device comprises a first output measurement unit, a second output measurement unit and a remote terminal unit, wherein the measurement device is connected with the remote terminal unit and an energy storage system respectively through transmission equipment; the second output measurement unit is connected with the remote terminal unit and a generator set respectively through the transmission equipment; the remote terminal unit receives a first data signal from the first output measurement unit and a second data signal from the second output measurement unit respectively through the transmission equipment, merges the first data signal with the second data signal, obtains an overall output signal of the generator end system and uploads the overall output signal to a power grid. By applying the signal measurement device, the independent measurement of output force of the energy storage system and the generator set is achieved by adding a group of output measurement units; signal perturbation of access of the energy storage system on the output control of the generator set is avoided, and seamless fusion of the output signal of the energy storage system and the generator end output signal of an original generator is achieved, and meanwhile, the installation cost is reduced.
Description
Technical field
The present invention relates to technical field of electric power, particularly a kind of signal measurement apparatus for generator end system and method.
Background technology
Electric system comprises electrical network, provides the generator of electric energy and various consumer.It is desirable for the electric energy that generator provides and the electric energy Real-time Balancing that consumer consumes.For this reason, access accumulator system at generator end, the electric energy provided with balancing generator and electric energy that consumer consumes, improve the stability of whole electric system.
After accumulator system access Power Plant Side generator end, need the machine of generator to bring out force signal and accumulator system to go out force signal and merge according to the electricity electrical system access mode of reality and energy exchange situation, form an actual data-signal of exerting oneself of reflection generator end overall system, feed back to the unit output signal data of power network dispatching system to replace original generator end system to upload.How to solve the signal merging treatment problem of accumulator system access Generator end, realize the seamless fusion that machine that accumulator system goes out force signal and original generator brings out force signal, avoid accumulator system access to go out force control signal disturbance to genset.
Summary of the invention
The embodiment of the present invention is to provide a kind of signal measurement apparatus for generator end system and method, effectively can monitor the carrying out of exerting oneself of generator end system after accumulator system access electrical network, and accumulator system access is avoided to go out force control signal disturbance to genset.
Embodiments provide a kind of signal measurement apparatus for generator end system, described generator end system comprises the genset, excitation unit, the high factory that are connected with enclosed busbar and becomes and main-transformer, wherein, described genset outlet terminal, excitation unit, the accommodation of high factory cross the low-pressure side that described enclosed busbar is connected to described main-transformer, and the high-pressure side of described main-transformer is connected to electrical network; Described generator end system also comprises accumulator system and the accumulator system step-up transformer for boosting to accumulator system;
Described measurement mechanism comprises:
First exerts oneself measuring unit, is connected respectively with remote terminal unit and accumulator system by transmission equipment;
Second exerts oneself measuring unit, is connected respectively with remote terminal unit and genset by transmission equipment;
Remote terminal unit, the first data-signal of measuring unit of exerting oneself from first is received respectively by described transmission equipment, to exert oneself from second second data-signal of measuring unit, merging treatment is carried out to first and second data-signal described, what obtain generator end system totally goes out force signal, totally goes out force signal be uploaded to power network dispatching system by described.
Wherein, described remote terminal unit, also for processing second data-signal of exerting oneself measuring unit from second, to exert oneself the result processed out control feedback signal as genset.
Wherein, the described first measuring unit of exerting oneself is arranged between the high-pressure side of described enclosed busbar and accumulator system step-up transformer, and the access point of described enclosed busbar is positioned at the low-pressure side of described main-transformer.
Wherein, described first exert oneself measuring unit be arranged on high factory become low-pressure side and the high-pressure side of accumulator system step-up transformer between.
Wherein, the described first measuring unit of exerting oneself can comprise: for measuring the current measuring unit of accumulator system access point electric current; And for measuring the voltage measurement unit of accumulator system access point voltage;
Described second exert oneself measuring unit can comprise for measure genset outlet electric current current measuring unit; And for measuring the voltage measurement unit of genset exit potential.
Wherein, the described first measuring unit of exerting oneself is intelligent power meter.
Wherein, described transmission equipment is Transmission Fibers, cable.
The embodiment of the present invention additionally provides a kind of signal measurement method for generator end system, described generator end system comprises the genset, excitation unit, the high factory that are connected with enclosed busbar and becomes and main-transformer, wherein, described genset outlet terminal, excitation unit, the accommodation of high factory cross the low-pressure side that described enclosed busbar is connected to described main-transformer, and the high-pressure side of described main-transformer is connected to electrical network; Described generator end system also comprises accumulator system and the accumulator system step-up transformer for boosting to accumulator system;
Described method comprises:
Gather the first data-signal from accumulator system;
Gather the second data-signal of self generating sets;
Carry out merging treatment to first and second data-signal described, what obtain generator end system totally goes out force signal, totally goes out force signal be uploaded to power network dispatching system by described.
Wherein, processing carrying out described second data-signal, obtaining the second power signal of genset current output, described second power signal to be exerted oneself control feedback signal as genset.
Wherein, voltage data and current data is comprised respectively in first and second data-signal described; Carry out merging treatment to first and second data-signal described, the step totally going out force signal obtaining generator end system comprises:
The first current power signal of accumulator system is calculated according to the voltage data in described first data-signal and current data;
The second current power signal of genset is calculated according to the voltage data in described second data-signal and current data;
Described first power signal and described second power signal are added, what obtain generator end system totally goes out force signal.
Wherein, in first and second data-signal described, comprise voltage data and current data respectively, and voltage data in first and second data-signal described is identical;
Carry out merging treatment to first and second data-signal described, the step totally going out force signal obtaining generator end system comprises:
Current data in described first data-signal be added with the current data in the second data-signal, the result data after application is added is multiplied with voltage data, and what obtain generator end system totally goes out force signal.
Wherein, power data is comprised respectively in first and second data-signal described;
Carry out merging treatment to first and second data-signal described, the step totally going out force signal obtaining generator end system comprises:
Be added with the power data in the second data-signal by power data in described first data-signal, what obtain generator end system totally goes out force signal.
The apparatus and method that the application embodiment of the present invention provides, achieve by newly-increased one group of measuring unit of exerting oneself the independence that accumulator system and genset exert oneself to measure, avoid accumulator system to access to exert oneself the signal disturbance controlled to genset, achieve the seamless fusion that machine that accumulator system goes out force signal and original generator brings out force signal.Meanwhile, avoid because access point is selected to cause construction cost, engineering difficulty and the harmful effect of duration, be conducive to the transformation to old factory.Reduce installation cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is existing wiring after power plant's original genset machine termination enters accumulator system and signal flow diagram;
Fig. 2 is a kind of signal measurement apparatus structural representation for generator end system according to the embodiment of the present invention;
Fig. 3 is according to the another kind of the embodiment of the present invention signal measurement apparatus structural representation for generator end system;
Fig. 4 is according to an embodiment of the invention for the process flow diagram of the signal measurement method of generator end system.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The present invention is based on accumulator system access Generator end and conventional electric generators parallel running, promote generator end system to the response effect of electrical network instruction, realize after accumulator system access the effective measurement and the merging treatment that go out force signal.
Control (AGC, Automatic Generation Control) with automatic generation amount below, for example, to be described in further details again prior art and the present invention.
In the existing production system of power plants generating electricity unit, remote terminal unit RTU (Remote TerminalUnit), it is the tie that factory's net signal connects, on the one hand power network dispatching system instruction of being exerted oneself by AGC is issued to power plant RTU according to communication protocol, and power plant RTU controls unit output the production control system that director data is handed down to genset again; On the other hand, power plant RTU carries out acquisition process the production datas such as force signal that go out of power plants generating electricity unit, and transmission feeds back to power network dispatching system, enables power network dispatching system monitor the production status such as to exert oneself of genset in real time.By above-mentioned closed loop procedure, realize genset and to exert oneself according to the AGC that power network dispatching system exports effective operation of instruction.
After accumulator system access Power Plant Side generator end, need the machine of generator to bring out force signal and accumulator system to go out force signal and merge according to the electricity electrical system access mode of reality and energy exchange situation, form a reflection generator end overall system actual data-signal of exerting oneself, to replace originally uploading the unit output signal data feeding back to power network dispatching system.On the other hand, accumulator system go out force signal collection, measure with merging can not affect the control of genset production system to unit cleared-out power, therefore the unit output signal that genset production system uses should remain unchanged, and avoids the access of accumulator system to affect Power Plant production control.
See Fig. 1, it is existing wiring after power plant's original genset machine termination enters accumulator system and signal flow diagram.In Fig. 1, genset 10 outlet terminal is connected with main-transformer 30 low-pressure side by main enclosed busbar 20, and the electric signal such as electric current, voltage of measuring unit 40 pairs of genset outlets of exerting oneself is measured; Above-mentioned measurement gained electric current, voltage signal deliver to power plant RTU 50 by signal transmitting device (not shown), communication connecting fiber, form production data.Power plant RTU is according to the communication protocol of agreement, genset is gone out force signal and is uploaded to power network dispatching system, the production control system (as dcs (DCS), programmable logic controller (PLC) (PLC) etc.) simultaneously delivering to power plant self participates in genset and to exert oneself production control.This part constitutes existing power generator machine end system.
As shown in Figure 1, the electric pressure that accumulator system 80 will need the electric energy exchanged to boost to main-transformer low-pressure side after accumulator system step-up transformer 90 boosts, achieved a butt joint by special feeder cable and main transformer low-pressure side bus, this access point is position between generator outlet end and machine end measurement point, also be that accumulator system is through accumulator system step-up transformer, access to inside the original measurement point of machine end, it accesses the left side of measuring unit 40 of exerting oneself as shown in Figure 1.After accumulator system access, generator end overall system is exerted oneself and to be exerted oneself by original genset, becomes the summation of exerting oneself of genset and accumulator system.
Wherein, measuring unit 40 of exerting oneself is included in the Current Transmit in order to gather current signal installed near generator unit stator winding neutral point, and at enclosed busbar near generator side, the voltage transformer (VT) (PT) for gathering voltage that before excitation Bian60Ji Gao factory becomes 70 branch bars, certain position is installed; Signal that this measuring unit 40 of exerting oneself gathers is that genset outlet active power and accumulator system exert oneself that (definition electric discharge is for just, be charged as negative) and, that represent that this exerts oneself by power P and, this power P and power P=UI is calculated by power plant RTU 50, wherein, U is the magnitude of voltage collected, and I is the current value collected.
In the embodiment shown in fig. 1, excitation unit is become by excitation and realizes, and in the embodiment that other are possible, excitation unit also can be exciter etc.
The signal being uploaded to power network dispatching system in such scheme can ensure correctly, but power plant's production control system cannot be distinguished genset and exert oneself and to exert oneself with accumulator system, cause accumulator system exert oneself to genset exert oneself control disturbance, the vibration of unit output can be caused under serious conditions, affect unit safety operation.Simultaneously, because the machine end measurement mechanism of generator is if the installation site of CT and PT is to genset exit position narrow space, in this narrow space, install that accumulator system is very difficult and cost is huge, be unfavorable for the transformation to genset, the significantly decline of unit reliability under serious conditions, may be caused.
See Fig. 2, it is a kind of signal measurement apparatus structural representation for generator end system according to the embodiment of the present invention, wherein, described generator end system comprises the genset 10, excitation unit 60, the high factory that are connected with enclosed busbar 20 and becomes 70 and main-transformer 30, wherein, described genset 10 outlet terminal, excitation unit 60, high factory change 70 are connected to the low-pressure side of described main-transformer 30 by described enclosed busbar, the high-pressure side of described main-transformer 30 is connected to electrical network; Described generator end system also comprises accumulator system 80 and the accumulator system step-up transformer 90 for boosting to accumulator system; Described accumulator system, through accumulator system step-up transformer, accesses to the original measurement point outer fix of machine end, also namely accesses the second right side of exerting oneself measuring unit 42;
Described measurement mechanism comprises:
First exerts oneself measuring unit 41, is connected respectively with remote terminal unit and accumulator system by transmission equipment;
Second exerts oneself measuring unit 42, is connected respectively with remote terminal unit and genset by transmission equipment;
Remote terminal unit 50, the first data-signal of measuring unit of exerting oneself from first is received respectively by described transmission equipment, to exert oneself from second second data-signal of measuring unit, merging treatment is carried out to first and second data-signal described, what obtain generator end system totally goes out force signal, totally goes out force signal be uploaded to power network dispatching system by described.
It should be noted that, described remote terminal unit, also for processing second data-signal of exerting oneself measuring unit from second, the result processed out to be exerted oneself control feedback signal as genset.
When accumulator system is connected to enclosed busbar by accumulator system step-up transformer, described first measuring unit 41 of exerting oneself is arranged between the high-pressure side of described enclosed busbar and accumulator system step-up transformer, and the access point of described enclosed busbar is positioned at the low-pressure side of described main-transformer, as shown in Figure 2.That is, in the specific implementation, above-mentioned first exert oneself measuring unit can select the high-pressure side of accumulator system step-up transformer in fig. 2 near access bus access point position (as schemed the position of upper 41), connect PT cabinet and CT cabinet by means such as telescopic joints from accumulator system transformer high-voltage side bus.
When accumulator system by accumulator system step-up transformer connect paramount factory become low-pressure side time, described first exert oneself measuring unit 41 be arranged on high factory become low-pressure side and the high-pressure side of accumulator system step-up transformer between, as shown in Figure 3.
In this application, in the high-pressure side of accumulator system access point, add separately a measuring unit of exerting oneself and to exert oneself measuring unit as first, monitor with the special voltage to accumulator system outlet, electric current.And original measuring unit of exerting oneself still just measures the voltage and current of genset outlet, so that add up respectively genset, accumulator system and overall exerting oneself.
It should be noted that, above-mentioned transmission equipment is Transmission Fibers, cable etc.
Be appreciated that the above-mentioned first measuring unit of exerting oneself can comprise: for measuring the current measuring unit of accumulator system access point electric current as CT; And for measure accumulator system access point voltage voltage measurement unit as PT.Certainly, above-mentioned second exert oneself measuring unit can comprise for measure genset outlet electric current current measuring unit as CT; And for measure genset exit potential voltage measurement unit as PT.
It should be noted that, above-mentioned first voltage transformer pt of measurement voltage signal in measuring unit of exerting oneself can select 20kv grade (or the grade matched with Generator end busbar voltage grade), and the Current Transmit measuring current signal can select the bidirectional current mutual inductor can measuring alternating current.The measuring accuracy of above-mentioned device should reach power network dispatching system to the measuring accuracy requirement going out force signal.
Above-mentioned first and second exerts oneself measuring unit measurement gained electric current, voltage signal by signal transmitting device, communication connecting fiber access power plant RTU telesignalisation passage.The specific implementation of above-mentioned transmitter, connecting fiber and access power plant RTU telesignalisation passage is prior art, no longer describes in detail at this.
In the embodiment depicted in figure 2, excitation unit is become by excitation and realizes, and in actual applications, excitation unit also can be exciter etc.The application does not limit the specific implementation of excitation unit.
In power plant RTU backstage, utilize software the voltage collected, current data to be calculated as follows:
A) P that exerts oneself in real time of accumulator system is calculated
eSS, exerting oneself in real time of accumulator system
P
ESS＝U
ESS*I
ESS
Wherein, U
eSSand I
eSSbe respectively and exert oneself the voltage data of measuring unit and current data from first.
B) P that exerts oneself in real time of calculating generator unit
pLANT, genset exert oneself in real time into
P
PLANT＝U
PLANT*I
PLANT
Wherein, U
pLANT* I
pLANTbe respectively and exert oneself the voltage data of measuring unit and current data from second.
C) calculating generator group exert oneself in real time exert oneself in real time with accumulator system and, it can be used as generator end overall system to go out force signal P
sUM
P
SUM＝P
ESS+P
PLANT
This totally goes out force signal P
sUMbe uploaded to power network dispatching system, realize effective monitoring that power network dispatching system exerts oneself to overall system and scheduling.
Above-mentioned A, B, C tri-kinds calculates not strict sequencing, such as, can totally go out force signal P by first calculating generator end system completely
sUM, then calculate the P that exerts oneself in real time of accumulator system
eSS.
It should be noted that, the machine end of the generator that the accumulator system in the embodiment of the present application is applied can be fired power generating unit, Hydropower Unit, wind power generating set, gas turbine group etc.
It should be noted that, accumulator system in the embodiment of the present application can be applied in the power dispatching class application of various active power and/or reactive power, and as comprised AGC application, frequency modulation application, wind power generating set output power is smoothly applied, unit output error compensation is applied, rotate back-up application etc.
It should be noted that, the accumulator system in the embodiment of the present application can be made up of all types of battery energy storage system, as being lithium battery, sodium-sulphur battery, flow battery etc., or, can also be made up of flywheel energy storage system.In this application, do not limit number and the kind of accumulator system, in above-mentioned any embodiment, described accumulator system can be made up of an energy storage device, or by many groups, the parallel connection of polymorphic type energy storage device forms.
It should be noted that, accumulator system described in the embodiment of the present application is included in all feasible access points meeting capacity requirement between generator outlet end enclosed busbar to step-up transformer low voltage side at the access point that Generator end is applied, such as can comprise Generator end bus, the change of high factory, boosting low pressure side, and step-up transformer high-pressure side.
It should be noted that, in the embodiment of the present application, do not limit the concrete access way of accumulator system at Generator end, any possible access way can be applied to the present invention, and such as, Fig. 2 and Fig. 3 is exactly two kinds of different access waies.Under mode shown in Fig. 3, measuring unit i.e. the first installation site of exerting oneself measuring unit of exerting oneself measuring accumulator system can be selected between accumulator system step-up transformer and height factory of power plant become.Owing to not needing to open Generator end enclosed busbar, reduce installation difficulty and the construction cost of accumulator system measuring unit, but reduce and can affect the measuring accuracy that accumulator system exerts oneself simultaneously due to the exert oneself electric pressure of measurement point of accumulator system.
It should be noted that, aforementioned first and second exerts oneself measuring unit can by other intelligent measure unit replacement meeting precision and installation environment requirement, such as intelligent power meter etc.In different measuring unit parts selection situations of exerting oneself, desired signal transmitter and Transmission Fibers can be replaced by the signal transmitting of responses match, amplification, transmission equipment, the same prior art of concrete requirement.
It should be noted that, aforementionedly comprise multiple on power plant RTU backstage to carrying out merging treatment (namely exerting oneself to the merging of accumulator system and unit output signal) mode to first and second data-signal described:
A kind of possible mode is, voltage of accumulator system and genset being exerted oneself first respectively, current signal carry out product and obtain accumulator system and genset active power is exerted oneself, and then both additions are obtained generator end overall system and exert oneself;
Another kind of possible mode is, when accumulator system and genset voltage measurement point are an equivalent point (as shown in Figure 2 situation), first accumulator system can be measured current signal to be added with genset current signal, obtain generator end overall system current signal, then with measurement genset voltage signal product, generator end overall system active power signal is obtained;
Another possible mode is, the methods such as employing cycle integrated method, vector multiplications or effective value producting method calculate accumulator system in real time and genset is exerted oneself in real time.
That is, in the application, do not limit concrete computing method, any possible computing method can be applied in the present invention.
A kind of alternative mode is, first the exert oneself signal of measuring unit 42 of measuring unit 41 and second of exerting oneself can realize signal by transmitter link and merges, namely realize unit output by hardware mode to go out superposing of force signal with accumulator system and merge, but its Computing Principle and software simulating are duplicate.
It should be noted that, in actual applications, will according to the range of sensor when calculating the exerting oneself in real time of accumulator system, be input to the transmitter output current scope of power plant RTU, the range of current etc. that single/two-way and meritorious transmitter exports carries out correct scales transforming related coefficient configuration in RTU daemon software, ensures to exert oneself in real time and correctly can reflect reality.
The device that the application embodiment of the present invention provides, achieve by newly-increased one group of measuring unit of exerting oneself the independence that accumulator system and genset exert oneself to measure, avoid accumulator system to access to exert oneself the signal disturbance controlled to genset, achieve the seamless fusion that machine that accumulator system goes out force signal and original generator brings out force signal.Meanwhile, avoid because access point is selected to cause construction cost, engineering difficulty and the harmful effect of duration, be conducive to the transformation to old factory.Reduce installation cost.
Participate in Fig. 4, it is according to an embodiment of the invention for the process flow diagram of the signal measurement method of generator end system, method described in the present embodiment is based on device described in Fig. 2 or Fig. 3, concrete, generator end system in the present embodiment comprises the genset, excitation unit, the high factory that are connected with enclosed busbar and becomes and main-transformer, wherein, described genset outlet terminal, excitation unit, the accommodation of high factory cross the low-pressure side that described enclosed busbar is connected to described main-transformer, and the high-pressure side of described main-transformer is connected to electrical network; Described generator end system also comprises accumulator system and the accumulator system step-up transformer for boosting to accumulator system; Described method comprises:
Step 401, gathers the first data-signal from accumulator system;
Step 402, gathers the second data-signal of self generating sets;
Step 403, carries out merging treatment to first and second data-signal described, and what obtain generator end system totally goes out force signal, totally goes out force signal be uploaded to electrical network by described.
Wherein, processing carrying out described second data-signal, obtaining the second power signal of genset current output, described second power signal to be exerted oneself control feedback signal as genset.
A kind of possible situation is, comprises voltage data and current data respectively in first and second data-signal described; Now, carry out merging treatment to first and second data-signal described, the step totally going out force signal obtaining generator end system comprises:
The first current power signal of accumulator system is calculated according to the voltage data in described first data-signal and current data;
The second current power signal of genset is calculated according to the voltage data in described second data-signal and current data;
Described first power signal and described second power signal are added, what obtain generator end system totally goes out force signal.
Another kind of possible situation comprises voltage data and current data respectively in first and second data-signal described, and voltage data in first and second data-signal described is identical; Now, carry out merging treatment to first and second data-signal described, the step totally going out force signal obtaining generator end system comprises:
Current data in described first data-signal be added with the current data in the second data-signal, the result data after application is added is multiplied with voltage data, and what obtain generator end system totally goes out force signal.
Another possible situation is, comprises power data respectively in first and second data-signal described; Now, carry out merging treatment to first and second data-signal described, the step totally going out force signal obtaining generator end system comprises:
Be added with the power data in the second data-signal by power data in described first data-signal, what obtain generator end system totally goes out force signal.
The method that the application embodiment of the present invention provides, measured by the independence of exerting oneself to accumulator system and genset, avoid accumulator system access to exert oneself the signal disturbance controlled to genset, achieve the seamless fusion that machine that accumulator system goes out force signal and original generator brings out force signal.Meanwhile, avoid because access point is selected to cause construction cost, engineering difficulty and the harmful effect of duration, be conducive to the transformation to old factory.Reduce installation cost.
For embodiment of the method, because it is substantially similar to device embodiment, so description is fairly simple, relevant part is see the explanation of embodiment of the method.
It should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
One of ordinary skill in the art will appreciate that all or part of step realized in said method embodiment is that the hardware that can carry out instruction relevant by program has come, described program can be stored in computer read/write memory medium, here the alleged storage medium obtained, as: ROM/RAM, magnetic disc, CD etc.
The foregoing is only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., be all included in protection scope of the present invention.
Claims (11)
1. the signal measurement apparatus for generator end system, it is characterized in that, described generator end system comprises the genset, excitation unit, the high factory that are connected with enclosed busbar and becomes and main-transformer, wherein, described genset outlet terminal, excitation unit, the accommodation of high factory cross the low-pressure side that described enclosed busbar is connected to described main-transformer, and the high-pressure side of described main-transformer is connected to electrical network; Described generator end system also comprises accumulator system and the accumulator system step-up transformer for boosting to accumulator system, wherein, the access point of described accumulator system comprises the feasible access point meeting capacity requirement between generator outlet end enclosed busbar to step-up transformer low voltage side;
Described measurement mechanism comprises:
First exerts oneself measuring unit, is connected respectively, comprises: for measuring the current measuring unit of accumulator system access point electric current by transmission equipment with remote terminal unit and accumulator system; And for measuring the voltage measurement unit of accumulator system access point voltage;
Second exerts oneself measuring unit, is connected respectively with remote terminal unit and genset by transmission equipment, comprises the current measuring unit for measuring genset outlet electric current; And for measuring the voltage measurement unit of genset exit potential;
Remote terminal unit, the first data-signal of measuring unit of exerting oneself from first is received respectively by described transmission equipment, to exert oneself from second second data-signal of measuring unit, merging treatment is carried out to first and second data-signal described, what obtain generator end system totally goes out force signal, totally goes out force signal be uploaded to power network dispatching system by described.
2. signal measurement apparatus according to claim 1, is characterized in that,
Described remote terminal unit, also for processing second data-signal of exerting oneself measuring unit from second, to exert oneself the result processed out control feedback signal as genset.
3. signal measurement apparatus according to claim 1, it is characterized in that, described first measuring unit of exerting oneself is arranged between the high-pressure side of described enclosed busbar and accumulator system step-up transformer, and the access point of described enclosed busbar is positioned at the low-pressure side of described main-transformer.
4. signal measurement apparatus according to claim 1, is characterized in that, described first exert oneself measuring unit be arranged on high factory become low-pressure side and the high-pressure side of accumulator system step-up transformer between.
5. signal measurement apparatus according to claim 1, is characterized in that, the described first measuring unit of exerting oneself is intelligent power meter.
6. signal measurement apparatus according to claim 1, is characterized in that, described transmission equipment is Transmission Fibers, cable.
7. the signal measurement method for generator end system, it is characterized in that, be applied to measurement mechanism according to claim 1, described generator end system comprises the genset, excitation unit, the high factory that are connected with enclosed busbar and becomes and main-transformer, wherein, described genset outlet terminal, excitation unit, the accommodation of high factory cross the low-pressure side that described enclosed busbar is connected to described main-transformer, and the high-pressure side of described main-transformer is connected to electrical network; Described generator end system also comprises accumulator system and the accumulator system step-up transformer for boosting to accumulator system, wherein, the access point of described accumulator system comprises the feasible access point meeting capacity requirement between generator outlet end enclosed busbar to step-up transformer low voltage side;
Described method comprises:
Gather the first data-signal from accumulator system;
Gather the second data-signal of self generating sets;
Carry out merging treatment to first and second data-signal described, what obtain generator end system totally goes out force signal, totally goes out force signal be uploaded to power network dispatching system by described.
8. method according to claim 7, is characterized in that,
Processing carrying out described second data-signal, obtaining the second power signal of genset current output, described second power signal to be exerted oneself control feedback signal as genset.
9. method according to claim 7, is characterized in that,
Voltage data and current data is comprised respectively in first and second data-signal described;
Carry out merging treatment to first and second data-signal described, the step totally going out force signal obtaining generator end system comprises:
The first current power signal of accumulator system is calculated according to the voltage data in described first data-signal and current data;
The second current power signal of genset is calculated according to the voltage data in described second data-signal and current data;
Described first power signal and described second power signal are added, what obtain generator end system totally goes out force signal.
10. method according to claim 7, is characterized in that,
Comprise voltage data and current data respectively in first and second data-signal described, and voltage data in first and second data-signal described is identical;
Carry out merging treatment to first and second data-signal described, the step totally going out force signal obtaining generator end system comprises:
Current data in described first data-signal be added with the current data in the second data-signal, the result data after application is added is multiplied with voltage data, and what obtain generator end system totally goes out force signal.
11. methods according to claim 7, is characterized in that,
Power data is comprised respectively in first and second data-signal described;
Carry out merging treatment to first and second data-signal described, the step totally going out force signal obtaining generator end system comprises:
Be added with the power data in the second data-signal by power data in described first data-signal, what obtain generator end system totally goes out force signal.
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