CN102136726B - Method and device for detecting operation mode of convertor station - Google Patents
Method and device for detecting operation mode of convertor station Download PDFInfo
- Publication number
- CN102136726B CN102136726B CN 201110055973 CN201110055973A CN102136726B CN 102136726 B CN102136726 B CN 102136726B CN 201110055973 CN201110055973 CN 201110055973 CN 201110055973 A CN201110055973 A CN 201110055973A CN 102136726 B CN102136726 B CN 102136726B
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- station
- current conversion
- conversion station
- bus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a method for detecting an operation mode of a convertor station, comprising the following steps: step 1, collecting the state value S1-Sn of breakers of a power station, a convertor station and a transformer substation by a detection device; step 2, calculating the logical expression value by the detection device; step 3, outputting the logical expression value to a convertor station control, a convertor station stability control device and a power station stability control device. The invention also discloses a device for detecting the operation mode of the convertor station. By the method and device provided by the invention, whether the convertor station is in an inland operation mode or a networking operation mode is distinguished through distinguishing the convertor station and the breaker state of the assessed power source to the delivery connecting lines in high speed and high accuracy; and the method and device provided by the invention are especially suitable for distinguishing the island operation mode of the high-capacity and high-voltage direct-current convertor station with high speed and reliability requirements.
Description
Technical field
The invention belongs to the current conversion station field, relate in particular to a kind of detection method and checkout gear of current conversion station method of operation.
Background technology
The operational mode of current conversion station is divided into two kinds, and a kind of is islet operation, and a kind of is networking operation.The decoupled mode of current conversion station, the power supply that refers to access sending end current conversion station is directly sent by DC line after rectification, power supply, current conversion station all are not electrically connected with AC system, and the networking operation of current conversion station means current conversion station or the power station of access current conversion station and the transformer station of major network electrical connection.
In the prior art, general high-capacity direct current current conversion station takes the isolated island mode to move, and can avoid shifting to AC system on a large scale behind the DC Line Fault, avoid because not controlled trend shifts the stabilization of power grids malicious event that may bring, and be a kind of more excellent electric network composition.The high voltage DC engineering particularly sending end current conversion station employing decoupled mode of high-capacity direct current engineering is present a kind of development trend.After current conversion station adopts decoupled mode, islanded system will present a series of characteristics different during from networking operation, different control strategy in the time of need to taking from networking operation:
(1) current conversion station islet operation has reduced islanded system DC Line Fault influence degree.Direct current generation bipolar locking during networking operation except the unit of needs excision access current conversion station, may also need to excise the major network part of generating units; Current conversion station is taked islet operation, direct current generation bipolar locking, the general unit that only needs excision access current conversion station;
(2) current conversion station islet operation, the horizontal 1.3pu that overvoltage level behind the DC bipolar block generally allows considerably beyond conventional substation, can reach 1.4 ~ 1.7 pu, the General Requirements change of current is excised after becoming time-delay 60 ~ 100ms again, utilizing the change of current to become inhibitory action to power-frequency overvoltage, this point is different during from the current conversion station networking operation;
(3) islanded system occur to exchange or DC line fault, and system frequency, voltage fluctuation are more serious than networking mode.When therefore current conversion station is in islet operation, islanded system generation unit fault, exchange or DC line fault, the transient frequency fluctuation that the current conversion station islanded system allows is larger, generally reach ± 1Hz, when changing, isolated island or networking operation mode need to switch frequency limitation device (FLC) parameter in the DC control system, to obtain best FREQUENCY CONTROL effect;
(4) islanded system is when the locking of direct current generation one pole, allows current conversion station to restart unsuccessful number of times and reaches (being generally 1 ~ 2 time), directly locking fault one pole behind the limit value.During the networking operation of current conversion station stream, more when allowing to restart unsuccessful number of times generally than islet operation after the locking of direct current one pole.
For the problems referred to above, the current conversion station islet operation need to be taked a series of operation control strategies different during from networking operation.But, also there are not a kind of checkout gear or method to detect the operational mode of current conversion station at present, the switching that moves control strategy for current conversion station provides foundation.
Current conversion station method of operation detects, be very different with the islet operation detected state tool of the microgrid that is used for distributed energy (such as wind-powered electricity generation, solar energy), the latter is usually by active or passive detection method, such as the variation of the voltage of passive detection and site, electric current, frequency, phase place and island state is detected, or by in the output of distributed power source, adding specific harmonic signal, by contrast power supply near region with major network in the having or not of this harmonic signal, amplitude size, phase place variation, impedance magnitude variation etc. judge whether current conversion station is in islet operation.
The islet operation tool of the islet operation of current conversion station and microgrid is very different:
(1) islet operation of current conversion station, islanded system have identical voltage, electric current, frequency or phase place with may having with the major network system, therefore, judge that by the variation of above-mentioned amount whether current conversion station is in islet operation is insecure.
(2) because the transmission power of high voltage direct current is larger, routine can arrive 3000MW ~ 7200MW, the installation scale at access power supply place is larger, employing adds the modulation harmonic wave at the power supply place method judges whether to be in island state, reliably detect such as needs, harmonic current or voltage magnitude need to reach certain value, and prior art can't realize, even realize that investment is also higher, the harmonic wave that injects at the power supply place might worsen the quality of power supply of islanded system.Side's one side also needs to compare with the harmonic wave that detects from major network in addition, and therefore, detection speed can't meet the demands.
(3) owing to different control strategies is taked in isolated island, networking operation, it is for the islet operation state that the isolated island detection of current conversion station not only needs to detect current conversion station, also needs to detect current conversion station and whether is in the networking operation state; Conventional piconet island detection method is namely moved with the system splitting termination routine after detecting island state, and the isolated island detection of current conversion station also needs to continue detection system and whether returns to networking operation after detecting island state.Therefore, current conversion station island state testing requirement is higher.This method is not only applicable to unplanned islet operation, also is applicable to intentional islanding.
Summary of the invention
Consider the importance of the operational mode detection of current conversion station, and still there are not a kind of checkout gear or method of effective current conversion station method of operation in the prior art, the detection of current conversion station method of operation also can't be applied in the various island detection methods that microgrid proposes, and therefore needs to propose a kind of detection method and checkout gear of current conversion station method of operation.
The invention discloses a kind of detection method of current conversion station method of operation, it comprises following steps:
Step 1: checkout gear gathers the state value S of the circuit breaker of power station, current conversion station, transformer station
1~ S
n
Step 2: the value of checkout gear computational logic expression formula:
Step 3: checkout gear exports value of logical expression to Converter Station control, current conversion station stability control device, power station stability control device.
Preferably, adopt two cover checkout gears and B-CII loop line road to detect, its logical expression is:
F in the following formula
A, f
BThe output signal that represents respectively two cover isolated island detecting devices;
Logical variable for B-CII loop line road power rating; "
" be the negate symbol; "
" be the logical AND symbol.
Preferably, said method also comprises:
Step 4: obtain current time T1; And obtaining step 1 time T 0 when carrying out, judge T1-T0 whether greater than
, be then to go to step 1, otherwise repeated execution of steps 4;
Wherein
Be the time that arranges according to the time-delay situation of installing.
Preferably, the logical expression of above-mentioned steps 2 is:
Preferably, inconsistent will the warning of above-mentioned two cover isolated island detecting device outputs, whether detect stream oriented device output by following formula consistent:
The invention also discloses a kind of checkout gear of current conversion station method of operation, comprise power station, current conversion station, transformer station and circuit breaker thereof; Above-mentioned detection device also comprises breaker signal harvester, checkout gear logical calculated module;
Above-mentioned breaker signal harvester is connected with each killer switch auxiliary contact, is used for the state value S of the circuit breaker of collection power station, current conversion station, transformer station
1~ S
n
Checkout gear logical calculated module: be used for the computational logic expression formula
Value;
Above-mentioned detection device logical calculated module is connected with Converter Station control device, current conversion station stability control device, is used for sending detected value;
Above-mentioned detection device logical calculated module is connected by optical fiber with the power station stability control device.
Preferably, the checkout gear of above-mentioned current conversion station method of operation also comprises:
Time detection device and judge module are for detection of time and storage and relatively judgement.
Preferably, the checkout gear of above-mentioned current conversion station method of operation is two covers, and every covering device independently gathers the relative breaker state information of power station, current conversion station, transformer station.
Preferably, the checkout gear of above-mentioned current conversion station method of operation also comprises warning device, and above-mentioned warning device is exported when inconsistent at two isolated island detecting devices and started.
Beneficial effect of the present invention is: by method disclosed by the invention and device, by differentiation current conversion station and access power supply the circuit-breaker status of sending interconnection outside being differentiated current conversion station is for isolated island or networking operation mode, do not need to gather, detect the information such as voltage, frequency, phase place, impedance of current conversion station, do not need to inject disturbing signal to electrical network yet, noiseless to electrical network, differentiate fast, accuracy is high, especially is fit to the differentiation to the very high large capacity high DC converter station decoupled mode of speed and reliability requirement.
Description of drawings
Fig. 1 is current conversion station networking operation wiring schematic diagram.
Fig. 2 is current conversion station islet operation wiring A schematic diagram.
Fig. 3 is current conversion station islet operation wiring B schematic diagram.
Fig. 4 is power station A electrical main connecting wire schematic diagram.
Fig. 5 is current conversion station B electrical main connecting wire schematic diagram.
Fig. 6 is the C of transformer station electrical main connecting wire schematic diagram.
Fig. 7 is island state discriminating gear software flow pattern.
Fig. 8 is current conversion station islet operation condition checkout gear structure chart.
Fig. 9 is isolated island detecting device input, output interface schematic diagram.
Embodiment
Object lesson below in conjunction with Figure of description and one ± 800kV/6400MW current conversion station specifies embodiments of the present invention.
Current conversion station wiring schematic diagram during as shown in Figure 1 networking operation.A 9 * the 700MW that installs in power station goes out the 500kV line access system altogether 4 times, and 3 times direct access current conversion station B wherein, other 1 tieback are to the C of transformer station, and current conversion station B links by 2 times 500kV circuits and the C of transformer station.The power of power station A is mainly sent for the high voltage direct current of ± 800kV/6400MW by 1 time rated power.
Because the direct current transmission power is large, DC Line Fault is very large to system safety stabilizing influence, and from simplifying stable setting, current conversion station B can realize following two kinds of decoupled mode wiring:
(1) as shown in Figure 2 decoupled mode, 6 units of power station A are by 4 times 500kV circuit access current conversion station B, two limit circuit breakers disconnections of going here and there to power station A, to this place, loop line road of current conversion station B among the current conversion station B move, change of current B is out of service to another time of the C of transformer station 500kV circuit, has realized power station A, current conversion station B and electrical isolation major network.
(2) as shown in Figure 3 decoupled mode, power station A 4 machines 3 lines access current conversion station B, power station A disconnects to two limit circuit breakers in this 4/3 string of transformer station B place, 7 remaining units of power station access current conversion station B by 3 times 500kV circuits, and current conversion station B is all out of service to twice 500kV circuits of the C of transformer station.The wiring schematic diagram of decoupled mode B as shown in Figure 3.
The electrical main connecting wire at each station, extremely shown in Figure 6 such as Fig. 4.As shown in Figure 4, power station A is 3/2,4/3 mixing wiring.Such as Fig. 5, shown in Figure 6, current conversion station B, the C of transformer station are 3/2 wiring.The electrical main connecting wire design at each station can realize satisfying the requirement that current conversion station B carries out the flexible conversion of isolated island and networking operation mode flexibly, and wherein the wherein loop line road of power station A to this loop line road of the C of transformer station and the C of transformer station to current conversion station B fits over on a string at the C of transformer station.
The detection method of a kind of current conversion station method of operation disclosed by the invention, as shown in Figure 7, it comprises following steps:
Step 1: the state value S that gathers the circuit breaker of power station A, current conversion station B, the C of transformer station
1~ S
n, (corresponding this example is S
1~ S
14);
Step 2: computational logic expression formula
Value; The expression formula of asking for can be set, and to this example then is:
Step 3: export value of logical expression to Converter Station control, stability control device, the power station stability control device;
Preferably, the detection method of above-mentioned current conversion station method of operation also further comprises:
Step 4: obtain current time T
1And the obtaining step 1 current time T when carrying out
0, and judge T
1-T
0Whether greater than
, be then to go to step 1, otherwise repeated execution of steps 4.
Wherein
Be the time that arranges according to the time-delay situation of installing.
Preferably, isolated island detecting device is realized the detection of the isolated island of current conversion station B, networking state by the circuit breaker opening and closing state that detects power station A, current conversion station B, the C of transformer station.Isolated island detecting device only provides the logic detection of isolated island, networking, by calculating power station A, current conversion station B, the C of transformer station circuit breaker S
1To S
14(the state logic variable expression such as Fig. 4-Fig. 6) is realized each circuit breaker S
1To S
14All use " 1 " expression " is opened ", " 0 " expression " closure ", and value of logical expression is in decoupled mode for " 1 " expression current conversion station, for " 0 " expression is in the networking operation mode.Based on above-mentioned supposition, during detecting, isolated island has following logical expression:
(1) to return current conversion station B side connection status be S to B-C I
1(S
2+ S
3); Be S
1Open (logical variable is " 1 "), S
2With S
3One of them must be opened, S
1(S
2+ S
3) value of logical expression be 1;
(2) to return the C of transformer station side connection status be S to B-C I
7(S
8+ S
9);
(3) to return current conversion station B side connection status be S to B-C II
4(S
5+ S
6);
(4) to return the C of transformer station side connection status be S to B-C II
10S
11
(5) C of the transformer station side connection status of A-C line is
Wherein
Expression and S
8The negate symbol;
(6) to return connection status be S to B-C I
1(S
2+ S
3)+S
7S
8
(7) to return connection status be S to B-C II
4(S
5+ S
6)+S
10S
11
(8) power station A and major network electrical isolation state are S
13S
14
The logic of decoupled mode A judges that relational expression is
The logic of decoupled mode B judges that relational expression is
Decoupled mode A, B logical relation are got isolated island that the "or" logic can get step 2 always to be detected logical relation and is:
This transition formula evaluation result is that 1 detection is isolated island, is that 0 detection is networking.
By above-mentioned flow process, can realize the cycle detection to island state, according to the time-delay situation of device
Can be set to 5 ~ 10ms, i.e. the temporal resolution of island state detection can reach 5 ~ 10ms.
For improving the reliability of isolated island detecting device, can install two cover isolated island detecting devices at current conversion station, every covering device all independently gathers the relative breaker state information of power station A, current conversion station B, the C of transformer station.After the Power Flow Information of the relative breaker state information of current conversion station B, the C of transformer station, current conversion station and major network interconnector all reaches current conversion station B, carry out logic by the isolated island detecting device that is located at current conversion station B and judge that the result of judgement is expressed as respectively
For avoiding failing to judge, as long as two cover isolated island detecting devices have 1 cover to be output as " 1 ", namely there is 1 covering device to detect current conversion station and is in the islet operation state, think that namely current conversion station is in the islet operation state.
Preferably, for fear of cause two covering device isolated island testing results different because of switch changed position, wiring or interior communication reason, except consisting of the main criterion by above-mentioned logical relation, also adopt B-CII loop line road (can choose the circuit that needs monitor according to actual conditions) power to consist of anti-error criterion, be mistaken for corresponding isolated island wiring when avoiding this meeting circuit higher.The anti-erroneous judgement of two cover isolated island detecting devices, anti-logical expression of failing to judge are:
F in the following formula
A, f
BThe output signal that represents respectively two cover isolated island detecting devices;
Be the logical variable of B-CII loop line road power rating, be when power is arranged " 1 " during inactivity to be " 0 ", "
" be the negate symbol.
Two cover isolated island detecting devices inconsistently will send voice and image alarm signal as exporting, and whether this function mainly detects two covering devices by following formula and export consistent:
F wherein
A, f
BThe output signal that represents respectively two isolated island detecting devices,
Be XOR operation, f
A, f
BAll identically be output as 1, be output as 0 when opposite, "
" be the negate symbol.K is logical expression result, i.e. f
A, f
BNot not simultaneously, K is output as 1, starts voice and image alarm device, by buzz, flickering display " lonely detect conflict " literal reminds the operator on duty to make inspection on alarm window.
Isolated island detecting device is also accepted manual command, and when personnel on duty pressed " isolated island " button, isolated island detecting device was namely exported the control of island state signal notice Converter Station and entered the islet operation state with steady control.This function is applicable to the intentional islanding situation, this moment, the operations staff was by the corresponding circuit breaker of stabilized control system tripping, enter the corresponding islet operation mode of connection, because current conversion station is in isolated island or networking mode, the control strategy that current conversion station is taked is different from mode, but so long as be in the isolated island mode, control strategy and parameter then are on all four, and to need not to differentiate be to enter any islet operation state to checkout gear when manually entering isolated island.
Isolated island detecting device generally is installed in current conversion station, the circuit-breaker status signal that need to read current conversion station, power station and the major network transformer station of electrical link is arranged.The offside station of current conversion station (power station of access or continuous major network transformer station) mainly is to gather the circuit-breaker status signal, need not carry out logic judging function, and coherent signal passes to and carries out logic behind the isolated island detecting device of current conversion station again and judge.Circuit-breaker status signal from this current conversion station can read from corresponding killer switch auxiliary contact, after then the measure and control device at this station reads from the circuit-breaker status signal of power station, a distant place, transformer station, transfers to current conversion station by professional optical fiber or multiplex channel.The input interface of isolated island discriminating gear is shown in Figure 9.
For improving reliability and transmission speed, the result of isolated island detecting device sends to the stability control device of current conversion station B and the control system of standing by hard connect (such as wire or control cables); And power station A only need obtain the island state signal, need not to carry out the switching of control strategy, so the Output rusults of isolated island device is delivered to power station A by the optical fiber connection.
The invention also discloses a kind of checkout gear of current conversion station method of operation, it is characterized in that as shown in Figure 8 comprising power station, current conversion station, transformer station and circuit breaker thereof, the checkout gear of above-mentioned current conversion station method of operation is connected with each circuit breaker, for detection of with the status signal of power station, current conversion station, circuit breaker that transformer station is relevant;
The breaker signal harvester is for the state value S of the circuit breaker that gathers power station A, current conversion station B, the C of transformer station
1~ S
n, (corresponding this example is S
1~ S
14);
Checkout gear logical calculated module: be used for the computational logic expression formula
Value;
The checkout gear of above-mentioned current conversion station method of operation is connected with Converter Station control device, current conversion station stability control device, is used for sending detected value;
The checkout gear of above-mentioned current conversion station method of operation is connected by optical fiber with the power station stability control device.
Preferably, the checkout gear of above-mentioned current conversion station method of operation also comprises time detection device and judge module, for detection of current time and storage and relatively judgement.
Preferably, the checkout gear of above-mentioned current conversion station method of operation is two covers, two covering devices all independently gather the relative breaker state information of power station A, current conversion station B, the C of transformer station, as long as isolated island detecting device has 1 cover to be output as " 1 ", namely have 1 covering device to detect current conversion station and are in the islet operation state.
Preferably, the checkout gear of above-mentioned current conversion station method of operation also comprises warning device, and above-mentioned warning device is exported in the inconsistent situation at the checkout gear of two cover current conversion station method of operations and started.Remind the lifting operator on duty to make inspection.
The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (7)
1. the detection method of a current conversion station method of operation, it comprises following steps:
Step 1: checkout gear gathers the state value S of the circuit breaker of power station, current conversion station, transformer station
1~ S
n
Step 2: the value of checkout gear computational logic expression formula:
Step 3: checkout gear exports value of logical expression to Converter Station control, current conversion station stability control device, power station stability control device;
The logical expression of described step 2 is:
Described value of logical expression is in decoupled mode for " 1 " expression current conversion station, for " 0 " expression is in the networking operation mode;
Described checkout gear is by detecting the circuit breaker S of power station A, current conversion station B and the C of transformer station
1To S
14The opening and closing state realize current conversion station B isolated island, the networking state detection; Each circuit breaker S
1To S
14Use all that " 1 " expression " is opened ", " 0 " expression " closure ";
Described power station A-bus I connecting breaker S
14, described power station A-bus II connecting breaker S
13Described circuit breaker S
14With circuit breaker S
13Connect described circuit breaker S
14With circuit breaker S
13Be connected to form a string in 4/3 wiring, described circuit breaker S by two groups of circuit breakers
14With circuit breaker S
13The place string loop has 1 to return back out line, 2 back into line, wherein 1 returns back out line and is connected to the C of transformer station, and other 2 are connected to respectively two units of power station A back into line;
Described circuit breaker S
1, S
2And S
3Connect successively circuit breaker S
1With circuit breaker S
3Other two ends connect respectively current conversion station B bus II and current conversion station B bus I; Described circuit breaker S
4, S
5And S
6Connect successively circuit breaker S
4With circuit breaker S
6Other two ends connect respectively current conversion station B bus II and current conversion station B bus I; Described circuit breaker S
1And S
2Between tie point connect the CI of transformer station and return circuit breaker S
2And S
3Between tie point connect current conversion station ACF1; Described circuit breaker S
4And S
5Between tie point connect the CII of transformer station and return circuit breaker S
5And S
6Between tie point connect current conversion station ACF2;
Described circuit breaker S
7, S
8And S
9Connect successively circuit breaker S
7With circuit breaker S
9Other two ends connect respectively the C of transformer station bus II and the C of transformer station bus I; Described circuit breaker S
10, S
11And S
12Connect successively circuit breaker S
10With circuit breaker S
12Other two ends connect respectively the C of transformer station bus II and the C of transformer station bus I; Described circuit breaker S
7And S
8Between tie point connect current conversion station BI and return circuit breaker S
8And S
9Between tie point connect power station A; Described circuit breaker S
10And S
11Between tie point connect current conversion station BII and return circuit breaker S
11And S
12Between tie point connect the major network All other routes.
2. the detection method of current conversion station method of operation as claimed in claim 1 is characterized in that adopting two cover checkout gears and B-CII loop line road to detect, and its logical expression is:
Wherein, f
A, f
BThe output signal that represents respectively two cover isolated island detecting devices;
Logical variable for B-CII loop line road power rating; "
" be the negate symbol; "
" be the logical AND symbol;
Described two cover checkout gears are the independent relative breaker state information that gathers power station, current conversion station, transformer station respectively, and the testing result of two cover checkout gears is carried out computing, then the logical variable in operation result and B-CII loop is carried out computing.
3. the detection method of current conversion station method of operation as claimed in claim 1 is characterized in that described method comprises:
Step 4: obtain current time T
1And obtaining step 1 time T when carrying out
0, judge T
1-T
0Whether greater than
, be then to go to step 1, otherwise repeated execution of steps 4;
Wherein
Be the time that arranges according to the time-delay situation of installing.
4. the detection method of current conversion station method of operation as claimed in claim 2 is characterized in that inconsistent will the warning of described two isolated island detecting devices output, and whether detect stream oriented device output by following formula consistent:
5. the checkout gear of a current conversion station method of operation is characterized in that comprising power station, current conversion station, transformer station and circuit breaker thereof; Described checkout gear also comprises breaker signal harvester, checkout gear logical calculated module;
Described breaker signal harvester is connected with each circuit breaker, is used for the state value S of the circuit breaker of collection power station, current conversion station, transformer station
1~ S
n
Checkout gear logical calculated module: be used for the computational logic expression formula
Value;
Described logical expression is:
Described value of logical expression is in decoupled mode for " 1 " expression current conversion station, for " 0 " expression is in the networking operation mode;
Described checkout gear is by detecting the circuit breaker S of power station A, current conversion station B and the C of transformer station
1To S
14The opening and closing state realize current conversion station B isolated island, the networking state detection; Each circuit breaker S
1To S
14Use all that " 1 " expression " is opened ", " 0 " expression " closure ";
Described power station A-bus I connecting breaker S
14, described power station A-bus II connecting breaker S
13Described circuit breaker S
14With circuit breaker S
13Connect described circuit breaker S
14With circuit breaker S
13Between tie point connect transformer station;
Described circuit breaker S
1, S
2And S
3Connect successively circuit breaker S
1With circuit breaker S
3Other two ends connect respectively current conversion station B bus II and current conversion station B bus I; Described circuit breaker S
4, S
5And S
6Connect successively circuit breaker S
4With circuit breaker S
6Other two ends connect respectively current conversion station B bus II and current conversion station B bus I; Described circuit breaker S
1And S
2Between tie point connect the CI of transformer station and return circuit breaker S
2And S
3Between tie point connect current conversion station ACF1; Described circuit breaker S
4And S
5Between tie point connect the CII of transformer station and return circuit breaker S
5And S
6Between tie point connect current conversion station ACF2;
Described circuit breaker S
7, S
8And S
9Connect successively circuit breaker S
7With circuit breaker S
9Other two ends connect respectively the C of transformer station bus II and the C of transformer station bus I; Described circuit breaker S
10, S
11And S
12Connect successively circuit breaker S
10With circuit breaker S
12Other two ends connect respectively the C of transformer station bus II and the C of transformer station bus I; Described circuit breaker S
7And S
8Between tie point connect current conversion station BI and return circuit breaker S
8And S
9Between tie point connect power station A; Described circuit breaker S
10And S
11Between tie point connect current conversion station BII and return circuit breaker S
11And S
12Between tie point connect the major network All other routes.
6. the checkout gear of current conversion station method of operation as claimed in claim 5 is characterized in that the checkout gear of described current conversion station method of operation also comprises:
Time detection device and judge module are for detection of time and storage and relatively judgement.
7. the checkout gear of current conversion station method of operation as claimed in claim 6 is characterized in that the checkout gear of described current conversion station method of operation also comprises warning device, and described warning device is exported when inconsistent at two isolated island detecting devices and started.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110055973 CN102136726B (en) | 2011-03-09 | 2011-03-09 | Method and device for detecting operation mode of convertor station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110055973 CN102136726B (en) | 2011-03-09 | 2011-03-09 | Method and device for detecting operation mode of convertor station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102136726A CN102136726A (en) | 2011-07-27 |
| CN102136726B true CN102136726B (en) | 2013-10-30 |
Family
ID=44296407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110055973 Active CN102136726B (en) | 2011-03-09 | 2011-03-09 | Method and device for detecting operation mode of convertor station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102136726B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102790401B (en) * | 2012-07-24 | 2014-03-19 | 国家电网公司 | Method for inhibiting fluctuation of random power of alternative-current junctor |
| CN103389421A (en) * | 2013-06-26 | 2013-11-13 | 国家电网公司 | Island detection method and device based on GOOSE communication |
| CN103941721A (en) * | 2014-03-24 | 2014-07-23 | 广东电网公司东莞供电局 | Numerical control testing device for electrical power system field intelligent stability control device |
| CN104767196B (en) * | 2015-04-02 | 2017-02-22 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Automatic in service and out of service method for restarting monitoring function of direct current transmission line fault |
| CN105352542B (en) * | 2015-10-14 | 2017-10-27 | 国家电网公司 | A kind of current conversion station panorama condition monitoring system |
| CN105552893B (en) * | 2015-12-29 | 2020-06-30 | 中国电力科学研究院 | Control method of direct-current frequency limiter |
| CN108155659B (en) * | 2018-01-05 | 2020-09-18 | 南方电网科学研究院有限责任公司 | Direct current passive island anti-error processing system based on alternating current tie line power |
| CN109347134B (en) * | 2018-11-09 | 2021-10-22 | 国家电网有限公司 | Bipolar flexible direct-current power grid polar line electric main wiring system and online maintenance method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020091991A1 (en) * | 2000-05-11 | 2002-07-11 | Castro Juan Carlos | Unified real-time microprocessor computer |
| DE10210099A1 (en) * | 2002-03-08 | 2003-10-02 | Aloys Wobben | Stand-alone grid and method for operating a stand-alone grid |
| CN101741094B (en) * | 2010-01-25 | 2013-02-27 | 株洲变流技术国家工程研究中心有限公司 | Turn-off device-based mobile power transmission device |
| CN101752873B (en) * | 2010-01-25 | 2012-05-23 | 株洲变流技术国家工程研究中心有限公司 | Protection method of DC electricity transmission high-voltage convertor station |
| CN101882799A (en) * | 2010-06-24 | 2010-11-10 | 上海交通大学 | Control method of alternating voltage sensorless high voltage direct current transmission converter |
-
2011
- 2011-03-09 CN CN 201110055973 patent/CN102136726B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102136726A (en) | 2011-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102136726B (en) | Method and device for detecting operation mode of convertor station | |
| EP2299568B1 (en) | System and method for monitoring power filters and detecting power filter failure in a wind turbine electrical generator | |
| Artale et al. | Smart interface devices for distributed generation in smart grids: The case of islanding | |
| CN102520314A (en) | Detection system and detection method for single-phase grounding fault line selection in small current grounding system | |
| CN103545926B (en) | A kind of distributed power source grid connection interface device | |
| CN205160090U (en) | Incessant little electric wire netting grid -connected interface integrated device of stable state has | |
| CN104022494A (en) | Alternating current and direct current coordinating protection method and device for flexible high voltage direct current transmission converter station circuit breaker | |
| CN204633466U (en) | A kind of protection telemetry communication integrated apparatus | |
| CN203243049U (en) | Reactive power compensation energy-saving device | |
| CN202362416U (en) | Detection system of one-phase ground fault line selection in small current neutral grounding system | |
| CN111103484A (en) | Island detection method, device and system based on hybrid power feedback disturbance | |
| CN202649381U (en) | GOOSE-based small-current grounding route selection system of intelligent transformer substation | |
| Wang et al. | Adaptive reclosing strategy for single outgoing line of converter-interfaced wind park using distance relaying algorithm | |
| CN202737463U (en) | Active filtering device with energy-saving, consumption-reducing and harmonic-treating functions | |
| CN204118714U (en) | The alternating current-direct current mating protection device of flexible direct current transmission converter station circuit breaker | |
| Nayak et al. | A hybrid islanding detection method considering voltage unbalance factor | |
| CN201966609U (en) | Detecting device of a current conversion station method of operation | |
| CN202721445U (en) | Intelligent reactive power compensation integrated module | |
| CN109932601A (en) | The method that the grid-connected circuit of star-like statodyne group is detected with anti-power transmission | |
| CN212008850U (en) | Intelligent primary and secondary fused on-column circuit breaker | |
| CN203054118U (en) | Short-circuit protection test apparatus for IGBT power unit | |
| EP2858201A1 (en) | Detection of islanding condition in electricity network | |
| CN205283154U (en) | Protection control of distributing type photovoltaic power generation and communication device | |
| CN108429243A (en) | Disconnection device and hydroelectric system | |
| CN211296196U (en) | Alternating current-direct current hybrid micro-grid system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA POWER ENGINEERING CONSULTING GROUP SOUTHWEST Free format text: FORMER NAME: SOUTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 610021 system planning center of Southwest Electric Power Design Institute, No. 18 Dongfeng Road, Sichuan, Chengdu Patentee after: China Power Engineering Consulting Group Southwest Electric Power Design Institute Co., Ltd. Address before: 610021 system planning center of Southwest Electric Power Design Institute, No. 18 Dongfeng Road, Sichuan, Chengdu Patentee before: Southwest Electric Power Design Institute of China Power Engineering Consulting Group Corporation |