CN105529822A - Redundancy control protection system - Google Patents
Redundancy control protection system Download PDFInfo
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- CN105529822A CN105529822A CN201410506219.9A CN201410506219A CN105529822A CN 105529822 A CN105529822 A CN 105529822A CN 201410506219 A CN201410506219 A CN 201410506219A CN 105529822 A CN105529822 A CN 105529822A
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Abstract
The invention relates to a redundancy control protection system, which comprises a station level and a device level, wherein the device level comprises a bipolar control level, a unipolar control level and a converter valve control level; the station level, the unipolar control level and the converter valve control level are in communication connection sequentially; the station level is in communication connection with the bipolar control level; the output of the bipolar control level is in communication connection with the output of the converter valve control level; the station level is used for receiving a control command signal from an operator control system or a telecontrol system; the bipolar control level distributes transmission power for each converter transmission circuit according to an operation mode given by a dispatching center and a transmission power instruction; the unipolar control level realizes active and reactive power control targets required by the system; and the converter valve control level is used for receiving a control command from the unipolar control level and receiving information from the converter valve, thereby realizing control and protection functions on the converter valve. The system of the invention improves reliability of the DC protection work, and reduces the mistrip risk.
Description
Technical field:
The present invention relates to a kind of Control protection system, more specifically relate to a kind of Control protection system of redundancy.
Background technology:
In electric power system, the operation of Control protection system to DC transmission system plays a part very important.The fault of Control protection equipment self or dysfunction should not impact the operation of DC transmission system, more do not allow the stoppage in transit causing DC transmission system.
Domestic and international existing DC control and protection system adopts dual to design mostly; DC control system adopts two redundancy switch logic to be more common configuration mode; but DC system protection equipment adopts dual design to there is certain drawback; namely namely set of system protection act is regarded as effectively; its shortcoming easily occurs misoperation; add the risk of direct current system mistrip, protection reliability is not high.Therefore the Control protection system proposing a kind of redundancy is to overcome the problems referred to above.
Summary of the invention:
The object of this invention is to provide a kind of Control protection system of redundancy, this system improves the reliability of direct current protecting work, reduce mistrip risk.
For achieving the above object, the present invention by the following technical solutions: a kind of Control protection system of redundancy, described system comprises station level and device level; Described device level comprises bipolar controlled stage, one pole controlled stage and converter valve controlled stage; Described station level, one pole controlled stage and converter valve controlled stage communicate to connect successively; Described station level communicates to connect bipolar controlled stage, and the output communication of described bipolar controlled stage connects the output of described converter valve controlled stage;
Described station level, for realizing the control command signal received from operator control system or telecontrol system, completes and controls and operation;
Described bipolar controlled stage according to the transmitted power of the given operational mode in control centre, each converter transmitting loop of transmitted power command assignment;
Described one pole controlled stage realizes meritorious, the idle control objectives of system requirements;
Described converter valve controlled stage receives the control command from described one pole controlled stage for realizing, and receives the reported information from converter valve, thus realizes the control and protection function to converter valve.
The Control protection system of a kind of redundancy provided by the invention, described station level comprises equipment Control protection system, work station and server; Described work station comprises operations staff's work station, engineer work station and remote work station.
The Control protection system of a kind of redundancy provided by the invention, described bipolar controlled stage comprises fire compartment wall and bipolar Control protection system; Described equipment Control protection system is connected with described bipolar Protection control system; Described work station is connected with described bipolar Protection control system by fire compartment wall with server.
The Control protection system of another preferred a kind of redundancy provided by the invention, described one pole controlled stage comprises fire compartment wall and single-stage Control protection system; Described work station is connected with described single-stage Control protection system by fire compartment wall with server.
The Control protection system of a preferred a kind of redundancy more provided by the invention, described converter valve controlled stage comprises high-pressure side Control protection system and low-pressure end Control protection system; Fire compartment wall in described one pole controlled stage is connected with described high-pressure side Control protection system and low-pressure end Control protection system respectively.
The Control protection system of another preferred a kind of redundancy provided by the invention, described bipolar Protection control system, single-stage Control protection system, high-pressure side Control protection system are all connected with control LAN1 and control LAN2 with the output of low-pressure end Control protection system.
The Control protection system of another preferred a kind of redundancy provided by the invention, described equipment Control protection system, bipolar Control protection system, single-stage Control protection system, high-pressure side Control protection system and low-pressure end Control protection system include at least two redundancy control systems and are divided at least two corresponding cover redundancy control systems.
The Control protection system of another preferred a kind of redundancy provided by the invention, includes two redundancy control systems when described Control protection system, single-stage Control protection system, high-pressure side Control protection system and low-pressure end Control protection system and is divided into two corresponding cover control system; Wherein a set of control system is run, and another cover controls for subsequent use; If current operation control system breaks down, after it is examined or safeguards, Beck-up Control System will obtain control; Manually switching command or order of automatically switching realize the transfer of described control; Described manual switchover order is completed by button, and described automatic switchover order is sent by malfunction monitoring subsystem.
The Control protection system of another preferred a kind of redundancy provided by the invention, often overlaps the protection system that described control system corresponding a set of three gets two logics; Two cover control system all receive complete protection output signal, and described protection system receives the control information in control system simultaneously.
The Control protection system of another preferred a kind of redundancy provided by the invention, described protection system is provided with three proterctive equipment; Described three to get two logics are logical conditions according to being more than or equal to two, export carry out ruling and control to the action of protection; When there being the two above protection act of cover proterctive equipment in three cover proterctive equipment, three get two logics exports final actuating signal; Then be judged as malfunction when only having a set of proterctive equipment action, actuating signal is got two logics by three and is blocked.
With immediate prior art ratio, the invention provides technical scheme and there is following excellent effect
1, the present invention guarantees only have a system to be in state of activation, and another system is in hot stand-by duty;
2, the present invention has two kinds of system switching modes, manual switchover and automatic switchovers.The system being only in state of activation can issue effective switching command;
3, the switch logic of present system makes between failure system and available system completely isolated, does not interfere with each other;
4, master-slave swap logic of the present invention is realized by the board in control system, and the state of two systems is undertaken by the HSL of full duplex;
5, the while of the present invention, the switch logic passage of two redundancy makes a channel failure not affect the execution of switch logic;
6, direct current protecting equipment adopts three-scale redundancy, improves the reliability of direct current protecting work, reduces mistrip risk.
Accompanying drawing explanation
Fig. 1 is DC control and protection system configuration structure of the present invention.
Embodiment
Below in conjunction with embodiment, the invention will be described in further detail.
Embodiment 1:
As shown in Figure 1, the Control protection system of a kind of redundancy of invention of this example, described system comprises station level and device level; Described device level comprises bipolar controlled stage, one pole controlled stage and converter valve controlled stage; Described station level, one pole controlled stage and converter valve controlled stage communicate to connect successively; Described station level communicates to connect bipolar controlled stage, and the output communication of described bipolar controlled stage connects the output of described converter valve controlled stage;
Described station level is for realizing the control command signal received from operator control system (OWS) or telecontrol system (GWS), complete and control and operation, all these control operations, all be designed with safe and reliable interlock, with the personal safety of the normal operation and operations staff that ensure system and equipment.Described bipolar controlled stage should be able to distribute the transmitted power of each converter transmitting loop according to the operational mode, transmitted power instruction etc. that control centre is given, when a certain time converter or DC line fault, the power in other loop should be redistributed to reduce the impact on system; Under bipolar ruuning situation, according to the feedback of metallic return size of current, by regulating bipolar power to distribute, be the function such as zero.Described one pole controlled stage realizes meritorious, the idle control objectives of system requirements.In addition, control system also have according to ac and dc systems operating condition carry out connecting transformer tapping regulate, to the control of change of current valve deblocking/locking order, ensure system steadily open/stop and for improving the additional control etc. that systematic function is carried out; Described converter valve controlled stage receives the control command from one pole control system for realizing, and receives the reported information from converter valve, thus realizes the control and protection function to converter valve.
Described station level comprises equipment Control protection system, work station, printer, GPS, telecontrol communication system, stand level CAN net and server; Described work station comprises operations staff's work station, engineer work station and remote work station; Server is SCADA system; The effect of SCADA system is for the operation control of Monitor and Control HVDC Transmission system and current conversion station AC system, data acquisition and data processing.SCADA system is the comprehensive computer network system of a modularization, distribution, and hierarchical structure is clear.It is made up of process monitoring unit, process control unit, graphic operation work station and mainframe computer system.Work station, the master computer of all process monitorings and operation are connected by local area network (LAN) (LAN), have information sharing, resource optimization uses and function distributes network performance.。
Described bipolar controlled stage comprises fire compartment wall and bipolar Control protection system; Described equipment Control protection system is connected with described bipolar Protection control system; Described work station is connected with described bipolar Protection control system by fire compartment wall with server.Described bipolar Control protection system is alternating current-direct current station Ore-controlling Role, comprises Exchange Station control and the control of direct current station.Exchange Station Ore-controlling Role mainly completes: the supervisory and control of alternating-current field, alternating current filter and capacitor.
Described one pole controlled stage comprises fire compartment wall and single-stage Control protection system; Described work station is connected with described single-stage Control protection system by fire compartment wall with server.Described one pole controlled stage is main frame, the equipment such as distributed field bus and distributed I/O that direct current polar control system mainly comprises the pole control system of each pole.
Described converter valve controlled stage comprises high-pressure side Control protection system and low-pressure end Control protection system; Fire compartment wall in described one pole controlled stage is connected with described high-pressure side Control protection system and low-pressure end Control protection system respectively.
Described bipolar Protection control system, single-stage Control protection system, high-pressure side Control protection system are all connected with control LAN1 and control LAN2 with the output of low-pressure end Control protection system.
Described equipment Control protection system, bipolar Control protection system, single-stage Control protection system, high-pressure side Control protection system and low-pressure end Control protection system include at least two redundancy control systems and are divided at least two corresponding cover redundancy control systems.
Include two redundancy control systems when described Control protection system, single-stage Control protection system, high-pressure side Control protection system and low-pressure end Control protection system and be divided into two corresponding cover control system; Wherein a set of control system is run, and another cover controls for subsequent use; If current operation control system breaks down, after it is examined or safeguards, Beck-up Control System will obtain control; Manually switching command or order of automatically switching realize the transfer of described control; Described manual switchover order is completed by button, and described automatic switchover order is sent by malfunction monitoring subsystem.By this switching principle, the fault of back-up system or test can not produce and switch unintentionally.Equally, manual switchover can not be used in back-up system.The switching triggered by fault monitoring system further increases the reliability of duplex system.In the controls, the important point is: the switch logic in two redundant systems should be completely independent, to ensure that the back-up system of fault can not affect the operation of operational system and allow to overhaul another system during a system cloud gray model.
Often overlap the protection system that described control system corresponding a set of three gets two logics.Described protection system is provided with three proterctive equipment; Described three to get two logics are logical conditions according to being more than or equal to two, export carry out ruling and control to the action of protection; When there being the two above protection act of cover proterctive equipment in three cover proterctive equipment, three get two logics exports final actuating signal.Then be judged as malfunction when only having a set of protection protection act, actuating signal is got two logics by three and is blocked.Configuring two three protection system objects of getting two logics is the interfaces realizing protection and dual control system.The interface signal of all and control system of three cover proterctive equipment, accesses two three respectively and gets two logical blocks, and formation two-way interface signal is corresponding with control system to be connected.Like this, two cover control system all can receive the complete protection output signal of getting two selections through three, and three cover proterctive equipment get the distribution of two logics through three simultaneously, can receive the control information that the main system in control system is sent here.In running, only there is a set of protection act, or only have a set of relay fail all can not have an impact to the correctness of protection act, logically there is not blind spot.And for proterctive equipment, often overlap proterctive equipment and all configure independently measuring circuit, electric power loop, input and output loop and network interface etc.Described protection system protection range is: ac bus, alternating current filter, converter transformer and direct current system.
Comprising following proterctive equipment/function is triple modular redundant:
The bipolar measurement interface of BMI-
The bipolar protection of BP-
CMI-converter measurement interface
CP-converter unit protection
The CTP-change of current becomes protection
PMI-pole measurement interface
PP-pole is protected
Above-mentioned defencive function all adopts three to get two logics, and namely the two cover actions wherein of three cover protective devices are just considered as effectively, and protection system all adopts from sampling apparatus to the functional cards of electrical secondary system and completely independently designs.
Equipment/function in following control system is dual:
ACC-alternating-current field controls (bipolar Control protection system)
AFC-alternating current filter controls (bipolar Control protection system)
AFP-AC filter protection (bipolar Control protection system)
APC-station power consumption control (being used in the Control protection system of station level)
AXI-station electrical interface (being used in the Control protection system of station level)
The bipolar control of BC-(bipolar Control protection system)
BSI-double-pole switch field interface (bipolar Control protection system)
CC-converter control (converter valve controlled stage)
CONROLLAN-control area net（CAN） (being used in the Control protection system of station level)
CSI-converter switch yard interface (converter valve controlled stage)
BUSES-bus (level of standing, Control protection system that is bipolar and one pole all can be used)
PC-pole control (one pole Control protection system)
PSI-pole switch yard interface (one pole Control protection system)
SCMLAN-station monitoring local area network (LAN) (Control protection system of level of standing)
Wherein, AC filter protection adopts two to get a logic, namely has a set of protection system action to be just considered as effectively.Exchange Station Ore-controlling Role is designed to the control system of redundancy, and from central control unit, LAN Netcom interrogates, and the bus communication to the unit of I/O on the spot with redundancy is Redundancy Design.Two systems link respectively by fieldbus network to be received on fieldbus; The LAN being connected to redundancy respectively by two LAN network interface cards is online.Realized the exchange of redundant data by the mode of HDLC between control system A and Beck-up Control System B.In software process, to these data, as the numerical quantities output, the output of timer time value etc. of output signal, Real-time Collection, mutually send by HDLC mode in main system with between system and receive.And by coming from of receiving from the data of system compared with the corresponding data of native system, if the corresponding data of the data received and native system is different, then the data received are effective, and with the corresponding data of the Refresh Data native system received.When network failure or when there is software fault, and when manually completing the switching of master and slave system, can there is redundancy and switch in system A and system B.In any moment, the operational order only having Exchange Station control main system to receive is effective, and control main system of standing controls to I/O unit transmitting order to lower levels request final after these command process; Field apparatus supervisory signal after only having station control main system to receive row relax of going forward side by side is effective, and finally uploads to LAN net
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; although those of ordinary skill in the field are to be understood that with reference to above-described embodiment: still can modify to the specific embodiment of the present invention or equivalent replacement; these do not depart from any amendment of spirit and scope of the invention or equivalent replacement, are all applying within the claims of the present invention awaited the reply.
Claims (10)
1. a Control protection system for redundancy, described system comprises station level and device level; It is characterized in that: described device level comprises bipolar controlled stage, one pole controlled stage and converter valve controlled stage; Described station level, one pole controlled stage and converter valve controlled stage communicate to connect successively; Described station level communicates to connect bipolar controlled stage, and the output communication of described bipolar controlled stage connects the output of described converter valve controlled stage; Described station level, for realizing the control command signal received from operator control system or telecontrol system, completes and controls and operation;
Described bipolar controlled stage according to the transmitted power of the given operational mode in control centre, each converter transmitting loop of transmitted power command assignment;
Described one pole controlled stage realizes meritorious, the idle control objectives of system requirements;
Described converter valve controlled stage receives the control command from described one pole controlled stage for realizing, and receives the reported information from converter valve, thus realizes the control and protection function to converter valve.
2. the Control protection system of a kind of redundancy as claimed in claim 1, is characterized in that: described station level comprises equipment Control protection system, work station and server; Described work station comprises operations staff's work station, engineer work station and remote work station.
3. the Control protection system of a kind of redundancy as claimed in claim 2, is characterized in that: described bipolar controlled stage comprises fire compartment wall and bipolar Control protection system; Described equipment Control protection system is connected with described bipolar Protection control system; Described work station is connected with described bipolar Protection control system by fire compartment wall with server.
4. the Control protection system of a kind of redundancy as claimed in claim 3, is characterized in that: described one pole controlled stage comprises fire compartment wall and single-stage Control protection system; Described work station is connected with described single-stage Control protection system by fire compartment wall with server.
5. the Control protection system of a kind of redundancy as claimed in claim 4, is characterized in that: described converter valve controlled stage comprises high-pressure side Control protection system and low-pressure end Control protection system; Fire compartment wall in described one pole controlled stage is connected with described high-pressure side Control protection system and low-pressure end Control protection system respectively.
6. the Control protection system of a kind of redundancy as claimed in claim 5, is characterized in that: described bipolar Protection control system, single-stage Control protection system, high-pressure side Control protection system are all connected with control LAN1 and control LAN2 with the output of low-pressure end Control protection system.
7. the Control protection system of a kind of redundancy as claimed in claim 6, is characterized in that: described equipment Control protection system, bipolar Control protection system, single-stage Control protection system, high-pressure side Control protection system and low-pressure end Control protection system include at least two redundancy control systems and be divided at least two corresponding cover redundancy control systems.
8. the Control protection system of a kind of redundancy as claimed in claim 7, is characterized in that: include two redundancy control systems when described Control protection system, single-stage Control protection system, high-pressure side Control protection system and low-pressure end Control protection system and be divided into two corresponding cover control system; Wherein a set of control system is run, and another cover controls for subsequent use; If current operation control system breaks down, after it is examined or safeguards, Beck-up Control System will obtain control; Manually switching command or order of automatically switching realize the transfer of described control; Described manual switchover order is completed by button, and described automatic switchover order is sent by malfunction monitoring subsystem.
9. the Control protection system of a kind of redundancy as claimed in claim 8, is characterized in that: often overlap the protection system that described control system corresponding a set of three gets two logics; Two cover control system all receive complete protection output signal, and described protection system receives the control information in control system simultaneously.
10. the Control protection system of a kind of redundancy as claimed in claim 9, is characterized in that: described protection system is provided with three proterctive equipment; Described three to get two logics are logical conditions according to being more than or equal to two, export carry out ruling and control to the action of protection; When there being the two above protection act of cover proterctive equipment in three cover proterctive equipment, three get two logics exports final actuating signal; Then be judged as malfunction when only having a set of proterctive equipment action, actuating signal is got two logics by three and is blocked.
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| CN201410506219.9A CN105529822A (en) | 2014-09-28 | 2014-09-28 | Redundancy control protection system |
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| CN201410506219.9A CN105529822A (en) | 2014-09-28 | 2014-09-28 | Redundancy control protection system |
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Cited By (6)
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| CN106684840A (en) * | 2017-01-20 | 2017-05-17 | 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 | Exit method under unavailable condition of DC protection in DC pole control systems |
| CN106786711A (en) * | 2016-11-21 | 2017-05-31 | 许继集团有限公司 | A kind of pole control system of layer-specific access system |
| CN107086553A (en) * | 2017-06-30 | 2017-08-22 | 南方电网科学研究院有限责任公司 | A kind of control guard method of DC transmission system and system |
| CN110278685A (en) * | 2019-04-22 | 2019-09-24 | 广州高澜节能技术股份有限公司 | A kind of D.C. high voltage transmission DCS control method |
| CN112993950A (en) * | 2021-03-01 | 2021-06-18 | 国网经济技术研究院有限公司 | Flexible direct current converter valve alternating current connecting line single-phase earth fault protection system and method |
| CN115864659A (en) * | 2023-02-27 | 2023-03-28 | 西安西电高压开关有限责任公司 | Energy router series power module fault redundancy control method and system |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786711A (en) * | 2016-11-21 | 2017-05-31 | 许继集团有限公司 | A kind of pole control system of layer-specific access system |
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| CN106684840A (en) * | 2017-01-20 | 2017-05-17 | 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 | Exit method under unavailable condition of DC protection in DC pole control systems |
| CN107086553A (en) * | 2017-06-30 | 2017-08-22 | 南方电网科学研究院有限责任公司 | A kind of control guard method of DC transmission system and system |
| CN107086553B (en) * | 2017-06-30 | 2020-01-03 | 南方电网科学研究院有限责任公司 | Control protection method and system for direct current transmission system |
| CN110278685A (en) * | 2019-04-22 | 2019-09-24 | 广州高澜节能技术股份有限公司 | A kind of D.C. high voltage transmission DCS control method |
| WO2020215763A1 (en) * | 2019-04-22 | 2020-10-29 | 广州高澜节能技术股份有限公司 | Dcs control method for high-voltage direct current transmission |
| CN112993950A (en) * | 2021-03-01 | 2021-06-18 | 国网经济技术研究院有限公司 | Flexible direct current converter valve alternating current connecting line single-phase earth fault protection system and method |
| CN112993950B (en) * | 2021-03-01 | 2022-11-15 | 国网经济技术研究院有限公司 | Flexible direct current converter valve alternating current connecting line single-phase earth fault protection system and method |
| CN115864659A (en) * | 2023-02-27 | 2023-03-28 | 西安西电高压开关有限责任公司 | Energy router series power module fault redundancy control method and system |
| CN115864659B (en) * | 2023-02-27 | 2023-06-02 | 西安西电高压开关有限责任公司 | Energy router series power module fault redundancy control method and system |
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