Generator set control system integrating automatic voltage control and telecontrol functions

Abstract

The utility model relates to a generator set control system integrating automatic voltage control and telecontrol functions. A dispatching master station system is adopted to send master station instructions to dispatch a data device; a telecontrol system is connected through a network cable; the telecontrol system carries out optical communication data conversion on a master station instruction through a scheduling data device; connecting to a unit measurement and control device through an optical fiber; simultaneously transmitting the converted optical communication data to a unit measurement and control device through an optical fiber; monitoring data collected by the unit measurement and control device is transmitted to the dispatching master station system; the unit measurement and control device is monitored in real time, remote control operation is carried out, and an alarm signal is output; the technical problems that in an existing generator set control system, the requirement for operators is improved, meanwhile, repeated collection and repeated transmission are caused by the existence of the same data, data collection is prone to being disordered, and the operation stability of a power plant is reduced are solved.

Description

TECHNICAL FIELD

[0001] The embodiment of the utility model relates to a generator set control system, especially relates to a generator set control system integrating automatic voltage control and remote function. BACKGROUND

[0002] The power plant needs to integrate various data in the power system and uniformly send to the monitoring center, needs to monitor the power plant equipment in real time, can send the alarm signal in time when the fault occurs, needs to carry out the unified remote control operation to each equipment of the power plant, needs to analyze the collected data and generates the report, provides the management personnel to carry out the statistics and decision reference, simultaneously has the automatic voltage control function, guarantees the power quality, improves the power transmission efficiency, reduces the network loss, realizes the stable operation of the generator set and the power grid.

[0003] In the existing generator set control system, the power plant remote system device and the automatic voltage control system two sets of devices are set up to independently operate, in the independent operation process, the power plant remote system device and the automatic voltage control system two sets of devices need to be operated, the requirement of the operator is improved, simultaneously, the same data causes the repeated collection, the repeated transmission problem, is easy to cause the data collection confusion, causes the stability of the power plant operation to reduce. UTILITY MODEL CONTENT

[0004] The embodiment of the utility model relates to a generator set control system, especially relates to a generator set control system integrating automatic voltage control and remote function.

[0005] In order to realize the above-mentioned purpose, the embodiment of the utility model designs a kind of generator set control system integrating automatic voltage control and remote function, comprising:

[0006] Dispatching host system;

[0007] Dispatching data device;The dispatching host system sends host instruction to several dispatching data devices;

[0008] Remote control system, at least one dispatching data device is connected to at least one remote control system by network cable;At least one remote control system carries out optical communication data conversion by at least one dispatching data device to the host instruction;

[0009] Unit measurement and control device, at least one remote control system is connected to at least one unit measurement and control device by optical fiber;At least one remote control system is transmitted to at least one unit measurement and control device by optical fiber simultaneously to the converted optical communication data;

[0010] At least one remote control system collects monitoring data of at least one unit control device and transmits the monitoring data to the dispatching master station system through at least one dispatching data device;

[0011] The remote control system performs real-time monitoring on the unit control device, remote control operation and output of alarm signals.

[0012] Further, in the generator set control system integrating automatic voltage control and remote control functions, the dispatching data device, the remote control system and the unit control device are redundantly arranged.

[0013] Further, in the generator set control system integrating automatic voltage control and remote control functions, the dispatching master station system is connected to the dispatching data device through a network.

[0014] Further, in the generator set control system integrating automatic voltage control and remote control functions, any one of the dispatching data devices further comprises:

[0015] A dispatching data network is connected to at least one dispatching data network in parallel through a network on the dispatching master station system.

[0016] A dispatching data network switch is connected to the dispatching data network on the dispatching data network; and the dispatching master station system sends the master station instruction to the dispatching data network switch through the dispatching data network.

[0017] Further, in the generator set control system integrating automatic voltage control and remote control functions, the remote control system further comprises:

[0018] A communication management machine is connected to all the communication management machines through a network cable on any one of the dispatching data network switches of the dispatching data device.

[0019] A synchronous clock device is connected to the same synchronous clock device on any one of the communication management machines; the synchronous clock device and any one of the communication management machines transmit B code and check time.

[0020] A station control layer switch is connected to all the station control layer switches through a network cable on any one of the communication management machines.

[0021] A first optical fiber terminal box is connected to all the first optical fiber terminal boxes through an optical fiber jumper on any one of the station control layer switches; and a second optical fiber terminal box on the unit control device is connected to the first optical fiber terminal box through an optical cable.

[0022] Further, in the generator set control system integrating automatic voltage control and remote function, the machine set measurement and control device further comprises:

[0023] The measurement and control device is connected with the measurement and control device through an optical cable on the second optical fiber terminal box of the machine set measurement and control device.

[0024] The control module is arranged on the measurement and control device, and the control module is connected to the machine set input and output end.

[0025] Further, in the generator set control system integrating automatic voltage control and remote function, the control module further comprises:

[0026] The telemetering module is arranged on the control module, and the telemetering module is connected with a bus voltage signal, a machine set active signal, a machine set reactive signal, an excitation voltage signal, an excitation current signal and a plant power signal through a hard-wired mode.

[0027] The telesignaling module is arranged on the control module, and the telesignaling module is connected with an accident total signal, a line switch signal, a generator switch signal and a protection action signal through a hard-wired mode.

[0028] The remote control module is arranged on the control module, and the remote control module is connected with a machine set magnetic excitation increasing signal, a machine set magnetic excitation decreasing signal, a machine set magnetic excitation increasing locking signal, a machine set magnetic excitation decreasing locking signal and a machine set AVC putting-in / retiring signal through a hard-wired mode.

[0029] Further, in the generator set control system integrating automatic voltage control and remote function, the synchronous clock device is a Beidou clock or a GPS clock.

[0030] The embodiment of the utility model compares with prior art, adopts dispatching main station system to send main station instruction to several dispatching data devices, dispatching data device connects remote control system through network cable, remote control system converts main station instruction through dispatching data device and carries out optical communication data, remote control system is connected to unit measurement and control device through optical fiber, remote control system carries optical communication data after conversion to unit measurement and control device through optical fiber and transmits simultaneously, remote control system collects monitoring data through dispatching data device and transmits to dispatching main station system, remote control system carries out real time monitoring to unit measurement and control device, carries out remote control operation and output alarm signal, realized two sets of devices of remote system device and automatic voltage control system, solved in the existing kind of generator control system, set up power plant remote system device and automatic voltage control system two sets of devices and carry out independent operation, in the independent operation process, need to operate power plant remote system device and automatic voltage control system two sets of devices, the requirement of operator is improved, simultaneously, there is the same data to cause repeated collection, repeated transmission problem, easy to cause data collection confusion, cause the stability of power plant operation to reduce technical problem. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is the connection structure schematic diagram of the utility model. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following will be combined with the drawings to each embodiment of the utility model detailedly described.The ordinary skilled in the art can understand that in each embodiment of the utility model, in order to make the reader better understanding of the present application and proposed many technical details.But, even without these technical details and based on the various changes and modifications of each embodiment, the technical scheme claimed by each claim of the present application can be realized.

[0033] The first embodiment of the utility model relates to a kind of generator set control system integrated with automatic voltage control and remote function, as shown in Fig. Figure 1 As shown in Fig.

[0034] The generator set control system in the present embodiment is mainly a generator set control system integrated with automatic voltage control and remote function, providing 2 sets of redundant systems, and the dispatching main station system, the remote control system and the unit measurement and control device are all two systems.

[0035] The dispatching main station system mainly issues instructions to each power plant according to the actual demand of the power grid and receives real-time data of the power plant operation.

[0036] The dispatching main station system sends main station instructions to several dispatching data devices, and the dispatching data devices mainly provide two communication channels.

[0037] The at least one dispatching data device is connected to the at least one remote control system through a network cable; the at least one remote control system converts the main station instruction into optical communication data through the at least one dispatching data device; the remote control system is connected to various sensors and telemetry devices in the power plant, and collects various data in the power system in real time, such as voltage, current, power, and electric quantity, and then transmits the data to the remote monitoring center or other related devices.

[0038] The remote control system can perform remote control operation, such as remote control operation on the generator, transformer, switch device, etc. Meanwhile, it can also receive remote signaling signals, and realize monitoring and judgment on the state of various devices.

[0039] The remote control system can perform real-time monitoring on the power plant equipment, and can timely send an alarm signal and transmit the alarm information to the relevant personnel when the equipment fails or abnormally, so as to timely take measures for processing.

[0040] Data analysis and report generation: the power plant remote system device can analyze and process the collected data, and generate various reports and charts for the management personnel to provide statistical and decision-making reference.

[0041] The at least one remote control system is connected to the at least one unit measurement and control device through an optical fiber; the at least one remote control system simultaneously transmits the converted optical communication data to the at least one unit measurement and control device through the optical fiber;

[0042] The at least one remote control system transmits the monitoring data collected by the at least one unit measurement and control device to the dispatching main station system through the at least one dispatching data device;

[0043] The at least one remote control system performs real-time monitoring on the at least one unit measurement and control device, performs remote control operation, and outputs an alarm signal. The unit measurement and control device is used to collect various real-time data of the power plant, sort and transmit to the communication management machine, execute the remote control instruction issued by the communication management machine, and output the signal; receive the input signal transmitted by various sensors, telemetry devices, transmitters, etc. in the plant, and feedback to the communication management machine in real time.

[0044] In the embodiment, the remote system device and the automatic voltage control system are combined into one, which solves the technical problem that in the existing generator control system, the power plant remote system device and the automatic voltage control system are independently operated, the requirements for the operator are improved, and the same data is repeatedly collected and transmitted, which easily causes data collection confusion and reduces the stability of the power plant operation.

[0045] In order to realize the above technical effects, the generator set control system integrating automatic voltage control and remote function in the embodiment is as shown in the figure. Figure 1 As shown, the dispatching data device, the remote control system and the unit measurement and control device are redundantly arranged, and each has two sets.

[0046] In order to realize the above technical effects, the generator set control system integrating automatic voltage control and remote function in the embodiment is as shown in the figure. Figure 1 As shown, the dispatching master station system is connected to the dispatching data device through a network.

[0047] In order to realize the above technical effects, the generator set control system integrating automatic voltage control and remote function in the embodiment is as shown in the figure. Figure 1 As shown, any one of the dispatching data devices further comprises:

[0048] The two dispatching data networks of the dispatching master station system are connected in parallel through a network; the dispatching data network mainly provides two communication channels.

[0049] The dispatching data network is connected to the dispatching data network; the dispatching master station system sends the master station instruction to the dispatching data network switch through the dispatching data network. The dispatching data network switch mainly provides the function of switching the dispatching data network.

[0050] In order to realize the above technical effects, the generator set control system integrating automatic voltage control and remote function in the embodiment is as shown in the figure. Figure 1 As shown, the remote control system further comprises:

[0051] The two dispatching data network switches of the dispatching data device are connected to all the communication management machines through network cables; the communication management machine collects real-time data of the power plant from the measurement and control device, and then transmits these data to the remote monitoring center and other devices requiring real-time data of the power plant.

[0052] Any one of the communication management machines is connected to the same synchronous clock device; the synchronous clock device transmits B code to any one of the communication management machines to check the time; the synchronous clock device is mainly used for accurate time setting.

[0053] The two communication management machines are connected to all the station control layer switches through network cables; the station control layer switch is a network device used for forwarding telecommunication signals and optical signals.

[0054] The two station control layer switches are connected to all the first optical fiber terminal boxes through optical fiber jumpers; the second optical fiber terminal box of the unit measurement and control device is connected to the first optical fiber terminal box through an optical cable. The first optical fiber terminal box mainly plays a role of optical signal relay.

[0055] In order to realize the above technical effects, the generator set control system integrating automatic voltage control and remote function in the embodiment, as shown in Figure 1 The unit measurement and control device further comprises:

[0056] The measurement and control device is connected to the second fiber terminal box of the unit measurement and control device through an optical cable; the measurement and control device is used for collecting various real-time data of the power plant, sorting and transmitting the real-time data to the communication management machine; executing the remote control instruction issued by the communication management machine to issue signals; receiving the incoming signals transmitted by various sensors, telemetry devices, transmitters and the like in the plant and feeding back the incoming signals to the communication management machine in real time.

[0057] A plurality of control modules are arranged on the measurement and control device; the control modules are connected to the input and output ends of the unit.

[0058] In order to realize the above technical effects, the generator set control system integrating automatic voltage control and remote function in the embodiment, as shown in Figure 1

[0059] The control module in the embodiment further comprises a telemetry module, a remote signaling module and a remote control module.

[0060] The telemetry module is arranged on the control module, and the bus voltage signal, the unit active signal, the unit reactive signal, the excitation voltage signal, the excitation current signal and the plant power signal are respectively connected to the telemetry module through a hardwiring mode.

[0061] The remote signaling module is arranged on the control module, and the accident total signal, the line switch signal, the generator switch signal and the protection action signal are respectively connected to the remote signaling module through a hardwiring mode.

[0062] The remote control module is arranged on the control module, and the unit excitation increase signal, the unit excitation decrease signal, the unit excitation increase locking signal, the unit excitation decrease locking signal and the unit AVC on / off signal are respectively connected to the remote control module through a hardwiring mode.

[0063] In order to realize the above technical effects, the generator set control system integrating automatic voltage control and remote function in the embodiment, as shown in Figure 1 The synchronous clock device is a Beidou clock or a GPS clock.

[0064] The utility model further provides a control method of the generator set control system integrating automatic voltage control and remote function, as shown in Figure 1 The control method comprises the following steps:

[0065] ​The dispatching master station system sends a master station instruction to two sets of dispatching data network switches through a dispatching data network; one of the sets of dispatching data network switches sends the master station instruction to two sets of communication management machines in the remote control system, and through the master station instruction, one of the sets of communication management machines transmits a remote control instruction issued by the two sets of measurement and control devices through an optical fiber of one station control layer switch, one first optical fiber terminal box and one second optical fiber terminal box, and then performs data acquisition and transmission, remote control and remote signaling, alarm management, data analysis, monitoring and report generation, and automatic voltage control operation on the two sets of measurement and control devices.

[0066] In the control method of the generator set control system in the embodiment, as shown in Figure 1 the measurement and control device of the set executes a remote control instruction issued by the communication management machine; and according to the remote control instruction,

[0067] Any one set of measurement and control device of the set collects monitoring data, including bus voltage signals, set active signals, set reactive signals, excitation voltage signals, excitation current signals, power signals, bus voltage signals, set active signals, set reactive signals, excitation voltage signals, excitation current signals, power signals, set magnetic field increasing signals, set magnetic field decreasing signals, set magnetic field increasing locking signals, set magnetic field decreasing locking signals, set AVC on / off signals, through a remote measurement module, a remote signaling module and a remote control module, and packages and feeds back the data to the communication management machine in real time.

[0068] Those skilled in the art can understand that the above-mentioned embodiments are specific embodiments for implementing the present application, and in actual application, various changes can be made in form and details without departing from the spirit and scope of the present application.

Claims

1. A generator set control system integrating automatic voltage control and remote control functions, characterized in that, include: Dispatch master station system; Scheduling data device; The scheduling master station system sends master station instructions to several scheduling data devices; A remote control system, wherein at least one of the scheduling data devices is connected to at least one of the remote control systems via a network cable; At least one of the telecontrol systems converts the master station commands into optical communication data via at least one of the scheduling data devices. The unit monitoring and control device includes at least one of the aforementioned remote control systems connected to at least one of the aforementioned unit monitoring and control devices via optical fiber; the at least one of the aforementioned remote control systems simultaneously transmits the converted optical communication data to at least one of the aforementioned unit monitoring and control devices via optical fiber. At least one of the remote control systems will transmit the monitoring data collected by at least one of the unit monitoring and control devices to the dispatch master station system through at least one of the dispatch data devices; At least one of the aforementioned remote control systems monitors at least one of the aforementioned unit monitoring and control devices in real time, performs remote control operations, and outputs alarm signals.

2. The generator set control system integrating automatic voltage control and remote control functions as described in claim 1, characterized in that, The scheduling data device, the remote control system, and the unit measurement and control device are redundantly configured.

3. The generator set control system integrating automatic voltage control and remote control functions according to claim 1, characterized in that, The scheduling master station system is connected to the scheduling data device via a network.

4. The generator set control system integrating automatic voltage control and remote control functions according to claim 1, characterized in that, Any of the aforementioned scheduling data devices further includes: A scheduling data network, at least one of the scheduling data networks is connected in parallel to the scheduling master station system via a network; A scheduling data network switch is connected to the scheduling data network; the scheduling master station system sends the master station command to the scheduling data network switch through the scheduling data network.

5. The generator set control system integrating automatic voltage control and remote control functions according to claim 1, characterized in that, The aforementioned remote control system further includes: The communication management unit is connected to all of the communication management units via network cables from any one of the scheduling data network switches in the scheduling data device. A synchronization clock device is connected to the same synchronization clock device in any of the communication management units; the synchronization clock device transmits B code with any of the communication management units to verify the time. Any one of the aforementioned communication management units is connected to all of the aforementioned station control layer switches via a network cable; The first fiber optic terminal box is connected to any of the station control layer switches via fiber optic patch cords; the first fiber optic terminal box is connected to the second fiber optic terminal box on the unit's monitoring and control device via fiber optic cable.

6. The generator set control system integrating automatic voltage control and remote control functions according to claim 1, characterized in that, The unit monitoring and control device also includes: The measurement and control device is connected to the measurement and control device via an optical cable on the second optical fiber terminal box of the unit's measurement and control device. A control module is provided on the measurement and control device, and the control module is connected to the input and output terminals of the unit.

7. The generator set control system integrating automatic voltage control and remote control functions according to claim 6, characterized in that, The control module further includes: The telemetry module is installed on the control module. The telemetry module is connected to the bus voltage signal, the unit active power signal, the unit reactive power signal, the excitation voltage signal, the excitation current signal, and the plant power signal via hard wiring. The remote signaling module is installed on the control module, and the telemetry module is connected to the fault general signal, line switch signal, generator switch signal and protection action signal respectively by hard wiring. The remote control module is installed on the control module. The remote control module is connected to the unit magnetization signal, the unit demagnetization signal, the unit magnetization interlock signal, the unit demagnetization interlock signal, and the unit AVC on / off signal via hard wiring.

8. The generator set control system integrating automatic voltage control and remote control functions according to claim 5, characterized in that, The synchronization clock device is a BeiDou clock or a GPS clock.

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