CN110445171A - A kind of active power and frequency control method and system based on the soft lineal system of marine wind electric field - Google Patents
A kind of active power and frequency control method and system based on the soft lineal system of marine wind electric field Download PDFInfo
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- CN110445171A CN110445171A CN201910702189.1A CN201910702189A CN110445171A CN 110445171 A CN110445171 A CN 110445171A CN 201910702189 A CN201910702189 A CN 201910702189A CN 110445171 A CN110445171 A CN 110445171A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/48—Controlling the sharing of the in-phase component
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
Abstract
The invention discloses a kind of active power and frequency control method and system based on the soft lineal system of marine wind electric field, this method comprises: the frequency signal of AC network access point on the bank is obtained, by the active modulation module of frequency in frequency signal transmission to converter station on the bank；The active modulation module of frequency is utilized based on frequency signal, generates power regulation；Whether communication system is normal between communication system and second station between detection first stop；When communication system is normal between communication system and second station between first stop, by the power regulation by the way that communication system is sent to offshore wind farm station control system between communication system and second station between the first stop；Further according to the active power of the received power regulation modulation marine wind electric field output of offshore wind farm station control system.The active power of modulation marine wind electric field output is realized, so that AC system carries out frequency modulation on the bank for support；Offshore wind farm is through the soft active regulatory function of the frequency for directly entering AC network access point on opposite bank.
Description
Technical field
The present invention relates to technical field of new energy power generation, specifically relate to a kind of active frequency based on the soft lineal system of marine wind electric field
Rate control method and system.
Background technique
Flexible HVDC transmission system is based on voltage source converter, has and commutation failure, independent control wattful power is not present
Rate and reactive power can provide effective solution to the advantages that passive network power supply for renewable energy is grid-connected.In recent years
With the fast development of domestic and international extensive, remote offshore wind farm, multiple off-lying sea flexible DC transmission engineerings are in planning rank
Section, future achievable offshore wind farm directly enter AC network on the bank through soft.The transmission power of wind power plant is larger, normally transports in power grid
The frequency of system has certain influence under capable and accident condition, need to be changed according to the frequency of AC system and adjust transmission power.To mention
High power grid overall performance, it is necessary to the algorithm for power modulation function based on frequency is introduced in flexible direct current system.
The DC power modulation for being currently based on frequency has engineer application in customary DC field, when a certain top-cross streaming system
Break down when frequency anomaly being caused to change, DC transmission system can the variation of quick response two sides frequency and change transmission power,
Quenching frequency control is carried out to support two sides exchange.The power grid of marine wind electric field in the prior art is adopted when carrying out power output
It is power control mode, the active power value of marine wind electric field output can not be adjusted according to the frequency of AC system on the bank,
Also AC system frequency modulation on the bank can not be supported.
Summary of the invention
Therefore, a kind of active power and frequency control method and system based on the soft lineal system of marine wind electric field provided by the invention,
The frequency for overcoming the groundless AC system on the bank of the prior art adjusts the active power value of marine wind electric field output, can not also prop up
Support the defect of AC system frequency modulation on the bank.
In a first aspect, the embodiment of the present invention provides a kind of active power and frequency control side based on the soft lineal system of marine wind electric field
Method, comprising: obtain the frequency signal of the AC network access point of AC system on the bank；By the frequency signal transmission to changing on the bank
The active modulation module of frequency in stream station；The active modulation module of the frequency is utilized based on the frequency signal, generates power tune
Section amount；
Detect communication system and marine converter station and offshore wind farm between converter station on the bank and the first stop of marine converter station
Whether communication system is normal between second station between；When communication system is normal between communication system and second station between first stop
When, by the power regulation by the way that communication system is sent to marine wind electric field between communication system and second station between the first stop
Control system；According to having for the received power regulation modulation marine wind electric field output of the offshore wind farm station control system
Function power.
Optionally, the active power and frequency control method based on the soft lineal system of marine wind electric field further include: when the first interior communication
When communication system is abnormal between system and/or second station, the marine wind electric field is exported according to default active power value.
Optionally, described the step of obtaining the frequency signal of AC network access point on the bank, comprising: real-time using phaselocked loop
AC network accesses dot frequency on the bank for measurement, generates frequency signal after filtering processing.
Optionally, the modulating mode in the active modulation module of the frequency includes: frequency sensitive mode, high frequency finite frequency
At least one of sensitive mode, low frequency finite frequency sensitive mode.
Optionally, the step of active modulation module of the frequency being utilized based on the frequency signal, generating power regulation,
It include: the modulating mode selected according to predeterminated frequency modulation demand in the active modulation module of the frequency；According to the modulation mould
Preset algorithm in formula generates power tune based on default rated frequency, default contract flexible direct current power and the frequency signal
Section amount.
Second aspect, the embodiment of the present invention also provide a kind of active power and frequency control system of marine wind electric field, comprising: frequency
Signal acquisition module, for obtaining the frequency signal of AC network access point on the bank；Frequency signal transmission module, being used for will be described
The active modulation module of frequency in frequency signal transmission to converter station on the bank；Power regulation generation module, for based on described
Frequency signal utilizes the active modulation module of the frequency, generates power regulation；Communication system detection module detects the change of current on the bank
The second interior communication stood between the first stop of marine converter station between communication system and marine converter station and marine wind electric field
Whether system is normal；Power regulation sending module, when communication system is normal between communication system and second station between first stop
When, by the power regulation by the way that communication system is sent to marine wind electric field between communication system and second station between the first stop
Control system；Active power modulation module, for according to the received power regulation of the offshore wind farm station control system
Modulate the active power of marine wind electric field output.
Optionally, power regulation generation module includes: modulating mode selection submodule, for being modulated according to predeterminated frequency
Demand selects the modulating mode in the active modulation module of the frequency；Power regulation generates submodule, according to the modulation mould
Preset algorithm in formula generates power tune based on default rated frequency, default contract flexible direct current power and the frequency signal
Section amount.
Optionally, the active power and frequency control system of marine wind electric field further include: control parameter setup module, for control to be arranged
Parameter processed, comprising: the maximum value of frequency threshold, proportionality coefficient and active power adjustment.
The third aspect, the embodiment of the present invention provide a kind of computer equipment, comprising: at least one processor, and with institute
State the memory of at least one processor communication connection, wherein the memory is stored with can be by least one described processor
The instruction of execution, described instruction are executed by least one described processor, so that at least one described processor executes the present invention
Active power and frequency control method based on the soft lineal system of marine wind electric field described in embodiment first aspect.
Fourth aspect, the embodiment of the present invention provide a kind of computer readable storage medium, the computer-readable storage medium
Matter is stored with computer instruction, and the computer instruction is for executing the computer described in inventive embodiments first aspect
Active power and frequency control method based on the soft lineal system of marine wind electric field.
Technical solution of the present invention has the advantages that
Active power and frequency control method provided in an embodiment of the present invention based on the soft lineal system of marine wind electric field, by obtaining bank
The frequency signal of upper AC network access point, then by the active modulation module of frequency in frequency signal transmission to converter station on the bank；
The active modulation module of frequency is utilized based on frequency signal, generates power regulation；Converter station on the bank and marine converter station are detected again
First stop between second station between communication system and marine converter station and marine wind electric field communication system it is whether normal；
When communication system is normal between communication system and second station between first stop, the power regulation is passed through between the first stop
Communication system is sent to offshore wind farm station control system between communication system and second station；
Further according to the active power of the received power regulation modulation marine wind electric field output of offshore wind farm station control system.
By the above method, by the way that the frequency signal of the access point of AC network on the bank of AC system to be passed through to the frequency in converter station on the bank
The active modulation module of rate generates power regulation, so that the active power of marine wind electric field output is modulated, so that support is handed on the bank
Streaming system carries out frequency modulation；Offshore wind farm is realized through the active adjusting function of the soft frequency for directly entering AC network access point on opposite bank
Energy.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is one of the active power and frequency control method provided in an embodiment of the present invention based on the soft lineal system of marine wind electric field
The flow chart of specific example；
Fig. 2 is that the composition figure of a specific example of marine wind electric field network system provided in an embodiment of the present invention is based on sea
The active power and frequency control method of the soft lineal system of upper wind power plant；
Fig. 3 is the frequency real power control transmission function block diagram provided in an embodiment of the present invention based on frequency；
Fig. 4 is the another of the active power and frequency control method provided in an embodiment of the present invention based on the soft lineal system of marine wind electric field
The flow chart of a specific example；
Fig. 5 is provided in an embodiment of the present invention based on frequency signal, utilizes the active modulation module of frequency, generation power regulation
The flow chart of the specific example of amount；
Fig. 6 is the adjustment curve figure of the frequency sensitive mode in modulating mode provided in an embodiment of the present invention；
Fig. 7 is the adjustment curve figure of the high frequency finite frequency sensitive mode in modulating mode provided in an embodiment of the present invention；
Fig. 8 is the adjustment curve figure of the low frequency finite frequency sensitive mode in modulating mode provided in an embodiment of the present invention；
Fig. 9 is the frequency sensitive mode in the modulating mode in the active modulation module of frequency provided in an embodiment of the present invention
Test waveform；
Figure 10 is that the higher frequency in the modulating mode in the active modulation module of frequency provided in an embodiment of the present invention is sensitive
The test waveform of mode；
Figure 11 is the Frequency sensitivity mould in the modulating mode in the active modulation module of frequency that inventive embodiments provide
The test waveform of formula；
Figure 12 is the frequency sensitive mode in the modulating mode in the active modulation module of frequency provided in an embodiment of the present invention
Simulation result diagram；
Higher frequency sensitivity mould in modulating mode in the active modulation module of Figure 13 frequency provided in an embodiment of the present invention
The simulation result diagram of formula；
Figure 14 is the Frequency sensitivity mould in the modulating mode in the active modulation module of frequency that inventive embodiments provide
The simulation result diagram of formula；
Figure 15 is a composition schematic diagram of the active power and frequency control system for the marine wind electric field that inventive embodiments provide；
Figure 16 is another composition schematic diagram of the active power and frequency control system for the marine wind electric field that inventive embodiments provide；
Figure 17 is the composition figure of one specific example of computer equipment provided in an embodiment of the present invention.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
Embodiment 1
As shown in Figure 1, the embodiment of the present invention provides a kind of active power and frequency control side based on the soft lineal system of marine wind electric field
Method, the control method include the following steps:
Step S1: the frequency signal of the AC network access point of AC system on the bank is obtained.In the embodiment of the present invention, such as scheme
It is the frequency real power control transmission function block diagram based on frequency shown in 3, AC system is real using phaselocked loop (PLL) on the bank in figure
When measurement on the bank AC system AC network access dot frequency, after first-order filtering is handled generate first frequency signal, only
It is illustrated, is not limited with this.
Step S2: by the active modulation module of frequency in frequency signal transmission to converter station on the bank.
Step S3: the active modulation module of frequency is utilized based on frequency signal, generates power regulation.The active modulation mould of frequency
More modulation mode is provided in block, operations staff can pass through Human-machine Control interface (Human Machine according to actual needs
Interface, HMI) selection modulating mode after, frequency signal can be counted according to the preset algorithm in the modulating mode of selection
It calculates, ultimately generates power regulation Δ P.
Step S4: communication system and marine converter station and sea between converter station on the bank and the first stop of marine converter station are detected
Whether communication system is normal between second station between upper wind power plant.Due to the power regulation Δ P of above-mentioned generation need by
Marine converter station can just be transmitted to offshore wind farm station control system, so before being transmitted, west need to detect on the bank converter station with
Communication system between second station between the first stop of marine converter station between communication system and marine converter station and marine wind electric field
It is whether normal.
Step S5: when communication system is normal between communication system and second station between first stop, as shown in Fig. 2, will be described
Power regulation is by the way that communication system is sent to offshore wind farm station control system between communication system and second station between the first stop.
Communication system between the first stop being arranged between converter station and marine converter station on the bank, and marine converter station and marine wind electric field it
Between second station between communication system may be implemented by power regulation Δ P from converter station on the bank be transmitted to marine wind electric field control system
System；When power regulation Δ P is by the way that communication system is sent to marine wind electric field control between communication system and second station between first stop
Before system, communication system by self-test determines whether present communications are normal between communication system and second station between first stop；When true
When determining that communication system is normal between communication system and second station between first stop, power regulation Δ P could be transmitted from converter station on the bank
To offshore wind farm station control system.
It should be noted that it is respectively provided with redundancy communication circuit between first stop between communication system and second station in communication system, it can
To transmit power regulation Δ P through a plurality of communication line, when wherein there is certain communication line to break down, do not influence
Normal signal transmission, to guarantee the reliability of signal.In practical application, in signal transduction process may communication delay, prolong
When about 50ms.
Step S6: according to the active of the received power regulation modulation marine wind electric field output of offshore wind farm station control system
Power.In practical applications, marine wind electric field Control protection system, marine wind electric field energy management are provided in marine wind electric field
System and multiple wind power plant units；When offshore wind farm station control system receives power regulation Δ P, power regulation Δ P
Marine wind electric field Energy Management System can be transmitted to by offshore wind farm station control system；When marine wind electric field Energy Management System connects
After receiving active power regulation amount Δ P, distribution has adjusted entire sea turn to multiple wind power plant units in marine wind electric field
The active power of electric field output.
S1 to step S6 through the above steps, the having based on the soft lineal system of marine wind electric field that the embodiment of the present invention provides
Function control method for frequency, by passing through the frequency signal of the access point of AC network on the bank of AC system in converter station on the bank
The active modulation module of frequency generates power regulation Δ P, so that the active power of marine wind electric field output is modulated, to support bank
Upper AC system carries out frequency modulation；Offshore wind farm is realized through the soft active adjusting of the frequency for directly entering AC network access point on opposite bank
Function.
In one embodiment, as shown in figure 4, ought on the bank between converter station and the first stop of marine converter station communication system and/
Or between the second station between marine converter station and marine wind electric field when communication system is abnormal, based on the soft lineal system of marine wind electric field
Active power and frequency control method further include step S7: marine wind electric field is exported according to default active power value.When logical between first stop
Between letter system and/or second station communication system by self-test detection arrive at a station a communication system it is abnormal when, the active modulation mould of frequency
Block will be set in vain, return to original control model, i.e., the active power transfer generated converter station on the bank to marine converter station.
As shown in figure 5, in one embodiment, above-mentioned steps S3 utilizes the active modulation module of frequency based on frequency signal, raw
Success rate regulated quantity, specifically includes:
Step S31: demand is modulated according to predeterminated frequency and selects the modulating mode in the active modulation module of the frequency.Modulation
Mode includes: frequency sensitive mode (FSM), high frequency finite frequency sensitive mode (LFSM-O), low frequency finite frequency sensitive mode
At least one of (LFSM-U)；In practical applications, operations staff can pass through Human-machine Control interface (Human Machine
Interface, HMI) select at least one modulating mode to carry out detail parameters setting, including it is frequency threshold, proportionality coefficient, active
The parameters such as the maximum value of power adjustment.
Step S32: according to the preset algorithm in modulating mode, based on default rated frequency, default contract flexible direct current function
Rate and the frequency signal generate power regulation Δ P.According to actual needs, operations staff is adjusted by the selection of Human-machine Control interface
After molding formula, as shown in Fig. 6 to 8, according to default rated frequency fn, default contract flexible direct current power pAVAnd frequency signal f is most
Power regulation Δ P is calculated eventually.Have in frequency sensitive mode (FSM), high frequency finite frequency sensitive mode (LFSM-O), low frequency
Frequency limit rate sensitive mode (LFSM-U)In be all preset withAdjustment curve as shown in Figure 6 to 8.Such as: when operations staff passes through
When Human-machine Control interface selects frequency of use sensitive mode (FSM), first according to frequency signal f and default rated frequency fnIt calculates
Difference DELTA f between the two, then calculate Δ f and default rated frequency fnProportionality coefficient, it is bent according to proportionality coefficient and modulation
Line chart obtains power regulation Δ P and contract dc power pAVBetween proportionality coefficient, due to contract dc power pAVFor
Know, so obtaining power regulation Δ P；When the power regulation Δ P being calculated be equal to zero, then illustrate power regulation Δ P
Do not change, i.e., it will the change of current on the bankIt stands generationActive power transfer to marine converter station.Specifically, as shown in fig. 6, being this hair
Bright implementationExample providesModulating mode in frequency sensitive mode adjustment curve figure；Wherein, Δ P: the modulation voltage of dc power；
ΔP1: frequency limit f1Corresponding DC power modulation amount when (50.2Hz)；ΔP2: frequency limit f2It is corresponding when (49.8Hz)
DC power modulation amount；pAV: contract flexible direct current power；Δftot: frequency controlling dead error；fn: rated frequency (50Hz)；Δ f:
The departure of AC network frequency；Δftolernace: the error of permission；s1: sagging (6%) when low frequency；s2: it is sagging when high frequency
(6%).Fig. 7 is that the present invention is implementedExample providesModulating mode in high frequency finite frequency sensitive mode adjustment curve figure；Its
In, Δ P: the modulation voltage of dc power；pAV: contract flexible direct current power；fn: rated frequency (50Hz)；Δ f: AC network frequency
The departure of rate；f1: frequency threshold: 50.2Hz；s3: the sagging coefficient of LFSM-O: 5%.Fig. 8 is that the present invention is implementedExample provides's
The adjustment curve figure of low frequency finite frequency sensitive mode in modulating mode；Wherein, Δ P: the modulation voltage of dc power；pAV: it closes
With flexible direct current power；fn: rated frequency；Δ f: the departure of AC network frequency；f1: frequency threshold: 49.8Hz；s4:
The sagging coefficient of LFSM-U: 5%.
Active power and frequency control method provided in an embodiment of the present invention based on the soft lineal system of marine wind electric field, by will on the bank
The frequency signal of AC network access point generates power regulation Δ P by the active modulation module of frequency in converter station on the bank,
To modulate the active power of marine wind electric field output, so that AC system carries out frequency modulation on the bank for support；Realize offshore wind farm
Through the soft active regulatory function of the frequency for directly entering AC network access point on opposite bank.
Active power and frequency control method provided in an embodiment of the present invention based on the soft lineal system of marine wind electric field, by
Simulation modeling is analyzed in PSCAD/EMTDC, wherein soft lineal system rated power 900MW, rated direct voltage ± 320kV；
AC system is equivalent to 380kV voltage source, short-circuit ratio SCR=5 on the bank；Offshore wind farm field model includes double-fed blower and straight wind dispelling
Two kinds of machine, power output respectively accounts for wind power plant gross capability 50%.Using following frequencies test waveform, frequency power control function is surveyed
Examination, frequency test waveform is as shown in Figures 9 to 11, and simulation result is as shown in Figure 12 to Figure 14, wherein Simulated indicates imitative
Data are really obtained, Required indicates the theoretical value after being configured under the active modulating mode of corresponding frequencies by certain parameter,
Δ P is power regulation, pAVFor contract flexible direct current power, Δ f is frequency signal f and default rated frequency fnBetween difference
Value, the i.e. departure of AC network frequency, fnTo preset rated frequency.
It can be shown that it can be according to handing on the bank using control method provided in an embodiment of the present invention by above-mentioned simulation result
The frequency signal of the AC network access point of streaming system effectively adjusts the active power of marine wind electric field output, realizes to exchange
The support that system frequency is adjusted, suitable for offshore wind farm through the soft engineering directly entered.
Embodiment 2
As shown in figure 15, the embodiment of the present invention also provides a kind of active power and frequency control system of marine wind electric field, comprising:
Frequency signal obtains module 1, for obtaining the frequency signal of AC network access point on the bank.This module executes implementation
Method described in step S1 in example 1, details are not described herein.
Frequency signal transmission module 2, for by the active modulation of frequency in the frequency signal transmission to converter station on the bank
Module.This module executes method described in the step S2 in embodiment 1, and details are not described herein.
Power regulation generation module 3 is generated for utilizing the active modulation module of the frequency based on the frequency signal
Power regulation.This module executes method described in the step S3 in embodiment 1, and details are not described herein.
Communication system detection module 4, for detect between converter station on the bank and the first stop of marine converter station communication system with
And whether communication system is normal between the second station between marine converter station and marine wind electric field.This module executes in embodiment 1
Step S4 described in method, details are not described herein.
Power regulation sending module 5, when communication system is normal between communication system and second station between first stop, by institute
Power regulation is stated by the way that communication system is sent to marine wind electric field control system between communication system and second station between the first stop
System.This module executes method described in the step S5 in embodiment 1, and details are not described herein.
Active power modulation module 6, for according to the received power regulation of the offshore wind farm station control system
Modulate the active power of the marine wind electric field output.This module executes method described in the step S6 in embodiment 1, herein
It repeats no more.
In one embodiment, power regulation generation module 3 specifically includes: modulating mode selects submodule, is used for basis
Predeterminated frequency modulation demand selects the modulating mode in the active modulation module of the frequency.This module executes the step in embodiment 1
Method described in rapid S31, details are not described herein.
Power regulation generates submodule, according to the preset algorithm in the modulating mode, based on default rated frequency, in advance
If contract flexible direct current power and the frequency signal generate power regulation.This module executes the step S32 institute in embodiment 1
The method of description, details are not described herein.
As shown in figure 16, the active power and frequency control system of marine wind electric field provided in an embodiment of the present invention, further includes: control
Parameter setting module 7, for control parameter to be arranged, comprising: the maximum value of frequency threshold, proportionality coefficient and active power adjustment.
In the embodiment of the present invention, maintenance work personnel can be selected and be carried out detailed control parameter setting by Human-machine Control interface, including
The parameters such as the maximum value that frequency threshold, proportionality coefficient, active power adjust, are only illustrated with this, are not limited.
The active power and frequency control system of marine wind electric field provided in an embodiment of the present invention, by frequency signal obtain module 1,
Frequency signal transmission module 2, power regulation generation module 3, communication system detection module 4,5 and of power regulation sending module
Active power modulation module 6 may be implemented by passing through the frequency signal of AC network access point on the bank in converter station on the bank
The active modulation module of frequency generate power regulation Δ P, so that the active power of marine wind electric field output is modulated, to support
AC system carries out frequency modulation on the bank；Offshore wind farm is realized through the soft active tune of the frequency for directly entering AC network access point on opposite bank
Save function.
Embodiment 3
The embodiment of the present invention provides a kind of computer equipment, as shown in figure 17, comprising: at least one processor 401, such as
CPU (Central Processing Unit, central processing unit), at least one communication interface 403, memory 404, at least one
A communication bus 402.Wherein, communication bus 402 is for realizing the connection communication between these components.Wherein, communication interface 403
It may include display screen (Display), keyboard (Keyboard), optional communication interface 403 can also include that the wired of standard connects
Mouth, wireless interface.Memory 404 can be high speed RAM memory, and (Ramdom Access Memory, effumability are deposited at random
Access to memory), it is also possible to non-labile memory (non-volatile memory), for example, at least a disk storage
Device.Memory 404 optionally can also be that at least one is located remotely from the storage device of aforementioned processor 401.Wherein processor
401 can execute the active power and frequency control method based on the soft lineal system of marine wind electric field in embodiment 1.It is deposited in memory 404
Batch processing code is stored up, and processor 401 calls the program code stored in memory 404, for executing in embodiment 1
Active power and frequency control method based on the soft lineal system of marine wind electric field.
Wherein, communication bus 402 can be Peripheral Component Interconnect standard (peripheral component
Interconnect, abbreviation PCI) bus or expanding the industrial standard structure (extended industry standard
Architecture, abbreviation EISA) bus etc..Communication bus 402 can be divided into address bus, data/address bus, control bus etc..
Only to be indicated with a line in Figure 17, it is not intended that an only bus or a type of bus convenient for indicating.
Wherein, memory 404 may include volatile memory (English: volatile memory), such as arbitrary access
Memory (English: random-access memory, abbreviation: RAM)；Memory also may include nonvolatile memory (English
Text: non-volatile memory), for example, flash memory (English: flash memory), hard disk (English: hard disk
Drive, abbreviation: HDD) or drop admittedly hard disk (English: solid-state drive, abbreviation: SSD)；Memory 404 can also wrap
Include the combination of the memory of mentioned kind.
Wherein, processor 401 can be central processing unit (English: central processing unit, abbreviation:
CPU), the combination of network processing unit (English: network processor, abbreviation: NP) or CPU and NP.
Wherein, processor 401 can further include hardware chip.Above-mentioned hardware chip can be specific integrated circuit
(English: application-specific integrated circuit, abbreviation: ASIC), programmable logic device (English:
Programmable logic device, abbreviation: PLD) or combinations thereof.Above-mentioned PLD can be Complex Programmable Logic Devices
(English: complex programmable logic device, abbreviation: CPLD), field programmable gate array (English:
Field-programmable gate array, abbreviation: FPGA), Universal Array Logic (English: generic array
Logic, abbreviation: GAL) or any combination thereof.
Optionally, memory 404 is also used to store program instruction.Processor 401 can be instructed with caller, be realized such as this
Application executes the active power and frequency control method based on the soft lineal system of marine wind electric field in embodiment 1.
The embodiment of the present invention also provides a kind of computer readable storage medium, and meter is stored on computer readable storage medium
The having based on the soft lineal system of marine wind electric field in embodiment 1 can be performed in calculation machine executable instruction, the computer executable instructions
Function control method for frequency.Wherein, the storage medium can be magnetic disk, CD, read-only memory (Read-Only
Memory, ROM), random access memory (Random Access Memory, RAM), flash memory (Flash
Memory), hard disk (Hard Disk Drive, abbreviation: HDD) or admittedly drop hard disk (Solid-State Drive, SSD) etc.；Institute
State the combination that storage medium can also include the memory of mentioned kind.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And thus amplify out it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of active power and frequency control method based on the soft lineal system of marine wind electric field characterized by comprising
Obtain the frequency signal of the AC network access point of AC system on the bank；
By the active modulation module of frequency in the frequency signal transmission to converter station on the bank；
The active modulation module of the frequency is utilized based on the frequency signal, generates power regulation；
Detection on the bank between converter station and the first stop of marine converter station communication system and marine converter station and marine wind electric field it
Between second station between communication system it is whether normal；
When communication system is normal between communication system and second station between first stop, the power regulation is passed through described first
Communication system is sent to offshore wind farm station control system between interior communication system and second station；
According to the wattful power of the received power regulation modulation marine wind electric field output of the offshore wind farm station control system
Rate.
2. the active power and frequency control method according to claim 1 based on the soft lineal system of marine wind electric field, which is characterized in that
Further include:
When communication system is abnormal between communication system and/or second station between first stop, the marine wind electric field is according to being preset with
The output of function performance number.
3. the active power and frequency control method according to claim 1 based on the soft lineal system of marine wind electric field, which is characterized in that
Described the step of obtaining the frequency signal of AC network access point on the bank, comprising:
Using phaselocked loop real-time measurement, AC network accesses dot frequency on the bank, generates frequency signal after filtering processing.
4. the active power and frequency control method according to claim 1 based on the soft lineal system of marine wind electric field, which is characterized in that
Modulating mode in the active modulation module of frequency includes: that frequency sensitive mode, high frequency finite frequency sensitive mode, low frequency have
At least one of frequency limit rate sensitive mode.
5. the active power and frequency control method according to claim 4 based on the soft lineal system of marine wind electric field, which is characterized in that
The step of utilizing the active modulation module of the frequency based on the frequency signal, generate power regulation, comprising:
Demand, which is modulated, according to predeterminated frequency selects the modulating mode in the active modulation module of the frequency；
According to the preset algorithm in the modulating mode, based on default rated frequency, default contract flexible direct current power and described
Frequency signal generates power regulation.
6. a kind of active power and frequency control system of marine wind electric field characterized by comprising
Frequency signal obtains module, the frequency signal of the AC network access point for obtaining AC system on the bank；
Frequency signal transmission module, for by the active modulation module of frequency in the frequency signal transmission to converter station on the bank；
Power regulation generation module generates power for utilizing the active modulation module of the frequency based on the frequency signal
Regulated quantity；
Communication system detection module, detection communication system and the marine change of current between converter station and the first stop of marine converter station on the bank
Whether communication system is normal between the second station stood between marine wind electric field；
Power regulation sending module, when communication system is normal between communication system and second station between first stop, by the function
Rate regulated quantity is by the way that communication system is sent to offshore wind farm station control system between communication system and second station between the first stop；
Active power modulation module, for modulating sea according to the received power regulation of the offshore wind farm station control system
The active power of upper wind power plant output.
7. the active power and frequency control system of marine wind electric field according to claim 6, which is characterized in that power regulation is raw
Include: at module
Modulating mode selects submodule, selects the tune in the active modulation module of the frequency for modulating demand according to predeterminated frequency
Molding formula；
Power regulation generates submodule, according to the preset algorithm in the modulating mode, based on default rated frequency, default conjunction
Power regulation is generated with flexible direct current power and the frequency signal.
8. the active power and frequency control system of marine wind electric field according to claim 6, which is characterized in that further include:
Control parameter setup module, for control parameter to be arranged, comprising: what frequency threshold, proportionality coefficient and active power adjusted
Maximum value.
9. a kind of computer equipment characterized by comprising at least one processor, and at least one described processor
The memory of communication connection, wherein the memory is stored with the instruction that can be executed by least one described processor, the finger
It enables and any active frequency based on the soft lineal system of marine wind electric field of 1-5 is required by least one described processor perform claim
Rate control method.
10. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has computer to refer to
It enables, the computer instruction is used to making the computer perform claim to require 1-5 any described soft straight based on marine wind electric field
The active power and frequency control method of system.
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