CN102169342B - Distribution network coordination control system and control method taking account of distributed power - Google Patents

Distribution network coordination control system and control method taking account of distributed power Download PDF

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Publication number
CN102169342B
CN102169342B CN201110122693.8A CN201110122693A CN102169342B CN 102169342 B CN102169342 B CN 102169342B CN 201110122693 A CN201110122693 A CN 201110122693A CN 102169342 B CN102169342 B CN 102169342B
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China
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control
distributed
distributed power
carry
instruction
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CN201110122693.8A
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CN102169342A (en
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孟祥萍
敖明
谭万禹
纪秀
界金星
郭莉
王晖
张红
苑全德
张龙斌
皮玉珍
张卓
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吉林省电力有限公司电力科学研究院
长春工程学院
吉林省电力科学研究院有限公司
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

The invention relates to a distribution network coordination control system taking account of distributed power, comprising a main control, a simulation display screen, thirteen groups of mutual inductors, nine groups of distributed switch control terminals, two groups of distributed power installation control terminals, two groups of distributed energy-storing device control terminals, two groups of distributed power installations, two groups of three-phase inversion devices, two groups of energy-storing devices and two groups of charging/inversion devices. The invention enables the distribution system to possess a run state coordinating the distributed power in the network, thereby realizing the capability of making the clean energy utilization rate maximization in the network. By the invention, the run state of the distributed power is coordinated and optimized to realize that the load tracking rate of the clean energy reaches more than 70%, meanwhile, avoid the impact to the distribution network due to any network connection/ disaggregation of the distributed power; when the distribution network occurs an extreme accident, i.e. the distribution network occurs an isolated island running situation, the distributed power and the energy-storing devices are coordinated to run at the largest power, thereby guaranteeing that the important loads in the network are in normal power supply, and solving the power supply problem of the distribution network when the extreme accident occurs.

Description

A kind of power distribution network coordinated control system and control method of taking into account distributed power source
Technical field
The research of the power distribution network coordinated control system that the present invention relates to comprise distributed power source, when relating in particular to distribution and occurring islet operation, the cooperative control system of many distributed power sources and control method.
Background technology
Development along with national economy, electricity needs increases rapidly, and the reduction of solar electrical energy generation, wind-power electricity generation, miniature gas turbine generating distributed generating set cost, a large amount of distributed power generation equipment pours in distribution, and the operation of distribution is played to positive supporting function.But a large amount of uses of distributed power source, also make the structure of power distribution network by radial power supply, become and take transformer station's power supply as main,, also there is series of problems below in the new model that multiple power sources coexists thereupon:
(1) in Large-Scale Interconnected electric system, Local Accidents very easily spreads, and causes large-area power failure;
(2) intervention of distributed power source makes the original system variation of follow load flexibly;
(3) many distributed power sources grid-connected/parallel off is serious on the impact of system power quality;
(4) comprise various distributed power source power distribution networks how each distributed power source of real time coordination exert oneself to realize output power and workload demand Dynamic Matching;
Follow the raising of the expansion of distributed power source scale, capacity and the ratio in electricity generation system thereof, during system fault of interconnected transmission line, if the problems such as the capacity of distributed power source network interface are not researched and analysed, and just simply make its grid-connected from power distribution network/parallel off, not only make the advantage of distributed power source all bring into play, also make the safety and reliability of power distribution network be subject to larger impact.Although these strategies can guarantee the security of electric system to greatest extent, restriction has even destroyed the normal operation of distributed power source to a certain extent, has seriously restricted development and the utilization of clean energy resource.Therefore, be badly in need of power distribution network coordination control and control method thereof that distributed power source is taken into account in research, the important load in real-time analysis power distribution network and distribution, the running status of distributed power source.When power distribution network breaks down, especially, after system generation extreme case, make a policy rapidly, the supporting role of maximum case performance distributed power source to electrical network, realizes important load uninterrupted power supply; The quick solution way of the energy supply quality problems in urgent power transmission network; Coordinate distributed power source in distribution, make it keep stable output power and workload demand Dynamic Matching, and capable of dynamic realizes the orientation, quantitative adjusting of trend between micro-electrical network and main electrical network etc., and then realize that the power distribution network that comprises distributed power source is stable, safe and reliable operation.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of power distribution network coordinated control system and control method of taking into account distributed power source, and the power distribution network that realization comprises distributed power source, according to the ruuning situation of net internal loading, is controlled the coordination of clean energy resource.When power distribution network breaks down, especially, after system generation extreme case, make a policy rapidly, the supporting role of maximum case performance distributed power source to electrical network, realizes important load uninterrupted power supply.
For solving the problems of the technologies described above, the invention provides a kind of power distribution network coordinated control system of taking into account distributed power source, it is characterized in that comprising:
A master station, be used for moving programming software, configuration software, and be that control signal reaches a plurality of distributed electrical source controllers by fieldbus by various digital quantities, analog quantity instruction transformation, and the signal operation that a plurality of distributed switch boards are transmitted is converted to display and passes to industrial computer configuration and show, simultaneously according to each parameter logical relation computing realize distributed power source startup stop, grid-connected parallel off, the break-make of running status and isolating switch; Monitor is for showing the runnable interface of industrial computer, comprise that distributed power source state, sectionaliser state, energy-storage units status information show, and the magnitude of voltage of distributed power generation device, sectionaliser, energy-storage units and transformer station, current value, total meritorious, idle analog parameter;
1 simulating display screen, for showing the content identical with industrial computer configuration software, comprise that distributed power source state, sectionaliser state, energy-storage units status information show, and the magnitude of voltage of distributed power generation device, sectionaliser, energy-storage units and transformer station, current value, total meritorious, idle analog parameter;
13 groups of mutual inductors, every group comprises 3 current transformers and 3 voltage transformer (VT), is used for gathering distributed power source and sectionaliser running state parameter;
9 distribution type switch control terminals, for reading mutual inductor parameter, and carry out telesignalisation collection, remote signals collection, remote signal forwarding;
2 distribution type Blast Furnace Top Gas Recovery Turbine Unit (TRT) control terminals, be used for reading mutual inductor parameter, and carry out three-phase voltage, three-phase current signal collection, the collection of distributed generation system working state signal, remote signal forwarding, simultaneously to distributed electrical source switch, power adjustments, simultaneous interconnecting;
2 distribution type energy storage device control terminals, be used for reading mutual inductor parameter, and carry out three-phase voltage, three-phase current signal collection, the collection of energy storage device working state signal, remote signal forwarding, simultaneously to energy storage device switch, working state control, power adjustments, simultaneous interconnecting;
2 distribution type Blast Furnace Top Gas Recovery Turbine Unit (TRT), wherein 1 group by the wind-light complementing power generation device that solar panel forms, another group is comprised of aerogenerator and solar cell, and above-mentioned Blast Furnace Top Gas Recovery Turbine Unit (TRT) is all grid-connected by inverter;
2 groups of three-phase inversion devices, the direct current energy that solar panel or aerogenerator are sent converts three-phase alternating current to, and possesses grid-connected and two kinds of patterns of independent operating;
2 groups of energy storage devices, battery pack forms;
2 groups of charging/inverters, for three-phase alternating current 380V is rectified into direct current 48V, simultaneously anti-overcharge electricity, prevent reverse polarity connection circuit; Battery pack consists of a plurality of accumulators, and inverter becomes three-phase alternating current 380V by accumulator direct current 48V inversion, and battery pack power shortage can be closed output terminal automatically.
Master station is comprised of an industrial computer with display monitor central monitoring system, a guidance panel, and industrial computer is attached to fieldbus by fieldbus network interface card, for moving programming software, configuration software, communicating by letter between master station and distributed feeder line control terminal is attached to fieldbus by private bus unitor, for being converted to control signal, the operation information of main operation panel reaches distributed feeder line control terminal by fieldbus, and the data message that distributed feeder line control terminal is transmitted is passed to the demonstration of industrial computer configuration, simultaneously according to the running state parameter of each distributed power source and load, intellectual analysis distribution running status and next load are constantly made prediction, and occur that accident can coordinate the intervention of exerting oneself and load of distributed power source when even disaster event occurs fast, realize important load power supply, guidance panel comprises that distributed power source starts, stops, grid-connected, parallel off, the increase of exerting oneself, reduction, emergency stop, the closure of sectionaliser switch, cut-off switch and knob are connected with industrial computer by fieldbus respectively, for manually sending, control and adjust instruction.Simulating display screen comprises that distributed power source state, sectionaliser state, energy-storage units status information show, and the magnitude of voltage of distributed power generation device, sectionaliser, energy-storage units and transformer station, current value, total meritorious, idle analog parameter.
Distributed power generation device control terminal is comprised of data detection module, modular converter, computing control system, driver module and communication module, and data detection module comprises that voltage vector, current phasor that voltage transformer (VT) summation current transformer is gathered up carry out analog acquisition, processing; Modular converter is that the simulation vector coming up through data detection module collection is carried out to A/D conversion, for computing control system, processes; Computing control system has supercomputing speed and data-handling capacity, be used for the mass data that computing and handle data transitions module are sent here, it comprises that voltage, current phasor signal to converting digital signal to carry out computing, calculate the frequency, meritorious and idle of distributed power source, and according to the ruuning situation of distributed power source, and the instruction assigned of Master Control Center, send steering order; Driver module, for receiving the control signal of computing control system, is processed through the amplification of driver module, drives ON/OFF and power adjustment adjustment and the simultaneous interconnecting control of actuating mechanism controls distributed power source; Communication module is responsible for main station system being connected in real time, and send data.
Distributed energy storage device control terminal is comprised of data detection module, modular converter, computing control system, driver module and communication module, and data detection module comprises that voltage vector, current phasor that voltage transformer (VT) summation current transformer is gathered up carry out analog acquisition, processing; Modular converter is that the simulation vector coming up through data detection module collection is carried out to A/D conversion, for computing control system, processes; Computing control system has supercomputing speed and data-handling capacity, be used for the mass data that computing and handle data transitions module are sent here, it comprises that voltage, current phasor signal to converting digital signal to carry out computing, calculate the frequency, meritorious and idle of distributed power source, and according to the ruuning situation of energy-storage units, and the instruction assigned of Master Control Center, send steering order; Driver module is for receiving the control signal of computing control system, amplification through driver module is processed, and drives ON/OFF and the power adjustment adjustment of actuating mechanism controls energy storage device, the duty (charged state, inverter mode, holding state) of simultaneously controlling energy storage device and simultaneous interconnecting to control; Communication module is responsible for main station system being connected in real time, and send data.
Distributed switch control terminal is comprised of data detection module, modular converter, computing control system, driver module and communication module, and data detection module comprises that voltage vector, current phasor that voltage transformer (VT) summation current transformer is gathered up carry out analog acquisition, processing; Modular converter is that the simulation vector coming up through data detection module collection is carried out to A/D conversion, for computing control system, processes; Computing control system has supercomputing speed and data-handling capacity, be used for the mass data that computing and handle data transitions module are sent here, it comprises that voltage, current phasor signal to converting digital signal to carry out computing, calculate the meritorious and idle of switch place, and according to the ruuning situation of circuit, and the instruction assigned of Master Control Center, send steering order; Driver module, for receiving the control signal of computing control system, is processed through the amplification of driver module, drives the ON/OFF of actuating mechanism controls switch; Communication module is responsible for main station system being connected in real time, and send data, and this device only has state to control, i.e. a kind of function of open and close.
Voltage transformer (VT) summation current transformer is arranged on the outlet of distributed power source, is divided into three groups, gathers respectively A phase, B phase, C phase voltage and electric current, and voltage transformer (VT) summation current transformer secondary side accesses respectively the detecting unit of distributed feeder line control terminal.
The power distribution network coordinated control system of taking into account distributed power source comprises that distributed energy storage device is coordinated to control, distributed power generation device is coordinated to control and distributed switch coordinates to control three parts.
Distributed energy storage device is directly coordinated to control and is divided into following steps:
101 bring into operation;
102 systems are carried out self check, and as self check is normally carried out next step, self check is undesired returns to 102;
103 image data, comprising three-phase voltage, three-phase current and DC voltage, electric current;
The data that the 104 pairs of collections come up are carried out operational analysis;
105 will be uploaded to industrial computer after data processing;
106 wait master stations are assigned instruction, as do not receive new instruction, and operating part continues to carry out a upper instruction, and returns to 103, receives new instruction and carries out next step;
107 judge whether the instruction that master station is assigned is charging instruction, if carry out next step, if not carrying out 110;
108 pairs of energy-storage units charge;
109 judge whether the electric weight of energy-storage units is full of, if be full of, returns to 103, and underfill carries out 108;
110 judge whether the instruction that master station is assigned is inversion instruction, if carry out next step, if not carrying out 116;
111 judge whether to possess the condition of the same period, if possessed, carry out next step, if do not possessed, carry out 111;
112 judge whether required power adjustment, if do not need to carry out 114, need to carry out 115;
114 keep original power;
115 press workload demand adjustment;
116 wait command;
Return to 103;
Distributed power generation device is coordinated to control and is divided into following steps:
201 bring into operation;
202 systems are carried out self check, and as self check is normally carried out next step, self check is undesired returns to 202;
203 image data, comprising three-phase voltage, three-phase current and DC voltage, electric current;
The data that the 204 pairs of collections come up are carried out operational analysis;
205 will be uploaded to industrial computer after data processing;
206 wait master stations are assigned instruction, as do not receive new instruction, and operating part continues to carry out a upper instruction, and returns to 203, receives new instruction and carries out next step;
207 judge whether to open three-phase inversion device, if carry out next step, if not carrying out 207;
208 judge whether to possess the condition of the same period, if possessed, carry out next step, if do not possessed, carry out 208;
209 is grid-connected;
210 judge whether required power adjustment, if do not need to carry out 211, need to carry out 212;
211 keep original power;
212 press workload demand adjustment;
213 wait command;
Distributed switch is controlled and is comprised the following steps:
301 bring into operation;
302 systems are carried out self check, and as self check is normally carried out next step, self check is undesired returns to 302;
303 image data, comprising three-phase voltage, three-phase current and DC voltage, electric current;
The data that the 304 pairs of collections come up are carried out operational analysis;
305 will be uploaded to industrial computer after data processing;
306 wait master stations are assigned instruction, as do not receive new instruction, and operating part continues to carry out a upper instruction, and returns to 303, receives new instruction and carries out next step;
307 according to the instruction unpack of master station or stopcock;
308 return to 303.
The present invention makes distribution system possess the running status of distributed power source in coordinating net, and then realizes the maximized ability of clean energy resource utilization factor in net.The running status of coordination optimization distributed power source, the Steam Generator in Load Follow rate that realizes clean energy resource reaches more than 70%, avoided simultaneously distributed power source any grid-connected parallel off impact that distribution is caused; When extreme accident occurs in distribution, there is " islet operation " situation in power distribution network, and in coordinating net, distributed power source and the operation of energy storage device peak power, guarantee important load normal power supply in net, supplying power allocation problem while having solved extreme accident.
accompanying drawing explanation
Fig. 1 is system composition diagram;
Fig. 2 is primary equipment wiring diagram;
Fig. 3 is system control flow chart;
Fig. 4 is distributed power generation device control flow chart;
Fig. 5 is distributed switch control flow chart.
embodiment
With reference to Fig. 1, a master station, be used for moving programming software, configuration software, and be that control signal reaches a plurality of distributed electrical source controllers by fieldbus by various digital quantities, analog quantity instruction transformation, and the signal operation that a plurality of distributed switch boards are transmitted is converted to display and passes to industrial computer configuration and show, simultaneously according to each parameter logical relation computing realize distributed power source startup stop, grid-connected parallel off, the Based Intelligent Control of the break-make of running status and isolating switch.
13 groups of mutual inductors, every group comprises 3 current transformers and 3 voltage transformer (VT), is used for gathering distributed power source and sectionaliser running state parameter;
9 distribution type switch control terminals, the voltage and current signal being come up by voltage transformer (VT), current transformer collection is sent to data detection module, by data detection module, to gathering the voltage vector, the current phasor that come up, is gathered, processes; Then be sent to modular converter, the simulation vector coming up through data detection module collection is carried out, after A/D conversion, being sent to computing control system and processing; Computing control system has supercomputing speed and data-handling capacity, to converting voltage, the current phasor signal of digital signal to, carry out computing, calculate the meritorious and idle of switch place, and according to the ruuning situation of circuit, and the instruction assigned of Master Control Center, send steering order; Driver module, for receiving the control signal of computing control system, is processed through the amplification of driver module, drives the ON/OFF of actuating mechanism controls switch; Communication module is responsible for main station system being connected in real time, and send data.This device only has state to control, i.e. a kind of function of open and close.
2 distribution type Blast Furnace Top Gas Recovery Turbine Unit (TRT) control terminals, the voltage and current signal being come up by voltage transformer (VT), current transformer collection is sent to data detection module, by data detection module, to gathering the voltage vector, the current phasor that come up, is gathered, processes; Then be sent to modular converter, the simulation vector coming up through data detection module collection is carried out, after A/D conversion, being sent to computing control system and processing; Computing control system has supercomputing speed and data-handling capacity, to converting voltage, the current phasor signal of digital signal to, carry out computing, calculate the meritorious and idle of switch place, and according to the ruuning situation of circuit, and the instruction assigned of Master Control Center, send steering order; Driver module, for receiving the control signal of computing control system, is processed through the amplification of driver module, drives actuating mechanism controls distributed power source ON/OFF, power adjustments, simultaneous interconnecting; Communication module is responsible for main station system being connected in real time, and send data.
2 distribution type energy storage device control terminals, the voltage and current signal being come up by voltage transformer (VT), current transformer collection is sent to data detection module, by data detection module, to gathering the voltage vector, the current phasor that come up, is gathered, processes; Then be sent to modular converter, the simulation vector coming up through data detection module collection is carried out, after A/D conversion, being sent to computing control system and processing; Computing control system has supercomputing speed and data-handling capacity, to converting voltage, the current phasor signal of digital signal to, carry out computing, calculate the meritorious and idle of switch place, and according to the ruuning situation of circuit, and the instruction assigned of Master Control Center, send steering order; Driver module, for receiving the control signal of computing control system, is processed through the amplification of driver module, drives actuating mechanism controls energy storage device ON/OFF, duty (charging, inversion, standby) control, power adjustments, simultaneous interconnecting; Communication module is responsible for main station system being connected in real time, and send data.
2 groups of three-phase inversion devices, the direct current energy that solar panel or aerogenerator are sent converts three-phase alternating current to, and possess grid-connected and two kinds of patterns of independent operating, inverter is uploaded to status information distributed power generation device control terminal in the course of the work in real time, and accepts steering order ON/OFF, power adjustments, the simultaneous interconnecting of distributed power generation device control terminal; About micro-electrical network three-phase grid-connected inverting system and control method thereof, see that application number is 201110098230.2 patented claim;
2 groups of energy storage devices, battery pack forms;
2 groups of charging/inverters, for three-phase alternating current 380V is rectified into direct current 48V, simultaneously anti-overcharge electricity, prevent reverse polarity connection circuit; Battery pack consists of a plurality of accumulators, and inverter becomes three-phase alternating current 380V by accumulator direct current 48V inversion, and battery pack power shortage can be closed output terminal automatically.Inverter is uploaded to distributed power generation control terminal in real time by status information in the course of the work, and accepts steering order charging, inversion, the standby of distributed power generation control terminal.
With reference to Fig. 2, circuit is the main line of taking into account the power distribution network coordinated control system of distributed power source.The supply line hand in hand that comprises three switch four segmentations that the A of transformer station and the B of transformer station form.In circuit, comprise 9 sectionalisers, wherein C1 and C9 have reclosing function, and C5 serves as interconnection switch function.And each sectionaliser has three current transformers and three voltage transformer (VT), for monitor each sectionaliser place voltage, electric current, frequency, meritorious and idle.2 distributed Blast Furnace Top Gas Recovery Turbine Unit (TRT) are generated electricity by way of merging two or more grid systems by inverter, every group comprises three current transformers and three voltage transformer (VT), be used for monitoring distributed power generation device voltage, electric current, frequency, meritorious and idle, and be sent to distributed power generation device control terminal.2 distributed energy storage devices, every group comprises three current transformers and three voltage transformer (VT), be used for monitoring distributed power generation device voltage, electric current, frequency, electric weight, and be sent to distributed power generation device control terminal.The data that master control platform is uploaded according to each distributed control terminal, calculate A, the power transmission amount of B transformer station, the generated energy of distributed Voltage, feedback grid electric weight and according to the ruuning situation of distributed power source and energy storage device, while calculating islet operation, be the A of transformer station, B all cannot power for some reason time, can maintain the time of power distribution network operation.
The power distribution network coordinated control system control method of taking into account distributed power source comprises that distributed power generation device is coordinated to control, distributed energy storage device is coordinated to control and distributed switch coordinates to control three parts.
With reference to Fig. 3, distributed energy storage is controlled and is divided into following steps:
101 bring into operation;
102 systems are carried out self check, and as self check is normally carried out next step, self check is undesired returns to 102;
103 image data, comprising three-phase voltage, three-phase current and DC voltage, electric current;
The data that the 104 pairs of collections come up are carried out operational analysis;
105 will be uploaded to industrial computer after data processing;
106 wait master stations are assigned instruction, as do not receive new instruction, and operating part continues to carry out a upper instruction, and returns to 103, receives new instruction and carries out next step;
107 judge whether the instruction that master station is assigned is charging instruction, if carry out next step, if not carrying out 110.
108 pairs of energy-storage units charge;
109 judge whether the electric weight of energy-storage units is full of, if be full of, returns to 103, and underfill carries out 108;
110 judge whether the instruction that master station is assigned is inversion instruction, if carry out next step, if not carrying out 116;
111 judge whether to possess the condition of the same period, if possessed, carry out next step, if do not possessed, carry out 111;
112 judge whether required power adjustment, if do not need to carry out 114, need to carry out 115;
114 keep original power;
115 press workload demand adjustment;
116 wait command;
Return to 103.
With reference to Fig. 4, distributed power generation device is controlled and is comprised the following steps:
201 bring into operation;
202 systems are carried out self check, and as self check is normally carried out next step, self check is undesired returns to 202;
203 image data, comprising three-phase voltage, three-phase current and DC voltage, electric current;
The data that the 204 pairs of collections come up are carried out operational analysis;
205 will be uploaded to industrial computer after data processing;
206 wait master stations are assigned instruction, as do not receive new instruction, and operating part continues to carry out a upper instruction, and returns to 203, receives new instruction and carries out next step;
207 judge whether to open three-phase inversion device, if carry out next step, if not carrying out 207;
208 judge whether to possess the condition of the same period, if possessed, carry out next step, if do not possessed, carry out 208;
209 is grid-connected;
210 judge whether required power adjustment, if do not need to carry out 211, need to carry out 212;
211 keep original power;
212 press workload demand adjustment;
213 wait command;
With reference to Fig. 5, distributed switch is controlled and is comprised the following steps:
301 bring into operation;
302 systems are carried out self check, and as self check is normally carried out next step, self check is undesired returns to 302;
303 image data, comprising three-phase voltage, three-phase current and DC voltage, electric current;
The data that the 304 pairs of collections come up are carried out operational analysis;
305 will be uploaded to industrial computer after data processing;
306 wait master stations are assigned instruction, as do not receive new instruction, and operating part continues to carry out a upper instruction, and returns to 303, receives new instruction and carries out next step;
307 according to the instruction unpack of master station or stopcock;
308 return to 303.

Claims (6)

1. a power distribution network coordinated control system of taking into account distributed power source, is characterized in that comprising:
A master station, be used for moving programming software, configuration software, and be that control signal reaches a plurality of distributed electrical source controllers by fieldbus by various digital quantities, analog quantity instruction transformation, and the signal operation that a plurality of distributed switch boards are transmitted is converted to display and passes to industrial computer configuration and show, simultaneously according to each parameter logical relation computing realize distributed power source startup stop, grid-connected parallel off, the break-make of running status and isolating switch; Monitor is for showing the runnable interface of industrial computer, comprise that distributed power source state, sectionaliser state, energy-storage units status information show, and the magnitude of voltage of distributed power generation device, sectionaliser, energy-storage units and transformer station, current value, total meritorious, idle analog parameter;
1 simulating display screen, for showing the content identical with industrial computer configuration software, comprise that distributed power source state, sectionaliser state, energy-storage units status information show, and the magnitude of voltage of distributed power generation device, sectionaliser, energy-storage units and transformer station, current value, total meritorious, idle analog parameter;
13 groups of mutual inductors, every group comprises 3 current transformers and 3 voltage transformer (VT), is used for gathering distributed power source and sectionaliser running state parameter;
9 distribution type switch control terminals, for reading mutual inductor parameter, and carry out telesignalisation collection, remote signals collection, remote signal forwarding;
2 distribution type Blast Furnace Top Gas Recovery Turbine Unit (TRT) control terminals, be used for reading mutual inductor parameter, and carry out three-phase voltage, three-phase current signal collection, the collection of distributed generation system working state signal, remote signal forwarding, simultaneously to distributed electrical source switch, power adjustments, simultaneous interconnecting;
2 distribution type energy storage device control terminals, be used for reading mutual inductor parameter, and carry out three-phase voltage, three-phase current signal collection, the collection of energy storage device working state signal, remote signal forwarding, simultaneously to energy storage device switch, working state control, power adjustments, simultaneous interconnecting;
2 distribution type Blast Furnace Top Gas Recovery Turbine Unit (TRT), wherein 1 group by the wind-light complementing power generation device that solar panel forms, another group is comprised of aerogenerator and solar cell, and above-mentioned Blast Furnace Top Gas Recovery Turbine Unit (TRT) is all grid-connected by inverter;
2 groups of three-phase inversion devices, the direct current energy that solar panel or aerogenerator are sent converts three-phase alternating current to, and possesses grid-connected and two kinds of patterns of independent operating;
2 groups of energy storage devices, battery pack forms;
2 groups of charging/inverters, for three-phase alternating current 380V is rectified into direct current 48V, simultaneously anti-overcharge electricity, prevent reverse polarity connection circuit; Battery pack consists of a plurality of accumulators, and inverter becomes three-phase alternating current 380V by accumulator direct current 48V inversion, and battery pack power shortage can be closed output terminal automatically.
2. the power distribution network coordinated control system of taking into account distributed power source according to claim 1, it is characterized in that: master station is comprised of an industrial computer with display monitor central monitoring system, a guidance panel, industrial computer is attached to fieldbus by fieldbus network interface card, for moving programming software, configuration software, communicating by letter between master station and distributed feeder line control terminal is attached to fieldbus by private bus unitor, for being converted to control signal, the operation information of main operation panel reaches distributed feeder line control terminal by fieldbus, and the data message that distributed feeder line control terminal is transmitted is passed to the demonstration of industrial computer configuration, simultaneously according to the running state parameter of each distributed power source and load, intellectual analysis distribution running status and next load are constantly made prediction, and occur that accident can coordinate the intervention of exerting oneself and load of distributed power source when even disaster event occurs fast, realize important load power supply, guidance panel comprises that distributed power source starts, stops, grid-connected, parallel off, the increase of exerting oneself, reduction, emergency stop, the closure of sectionaliser switch, cut-off switch and knob are connected with industrial computer by fieldbus respectively, for manually sending, control and adjust instruction, simulating display screen comprises that distributed power source state, sectionaliser state, energy-storage units status information show, and the magnitude of voltage of distributed power generation device, sectionaliser, energy-storage units and transformer station, current value, total meritorious, idle analog parameter.
3. the power distribution network coordinated control system of taking into account distributed power source according to claim 1, it is characterized in that: distributed power generation device control terminal is comprised of data detection module, modular converter, computing control system, driver module and communication module, data detection module comprises that voltage vector, current phasor that voltage transformer (VT) summation current transformer is gathered up carry out analog acquisition, processing; Modular converter is that the simulation vector coming up through data detection module collection is carried out to A/D conversion, for computing control system, processes; Computing control system has supercomputing speed and data-handling capacity, be used for the mass data that computing and handle data transitions module are sent here, it comprises that voltage, current phasor signal to converting digital signal to carry out computing, calculate the frequency, meritorious and idle of distributed power source, and according to the ruuning situation of distributed power source, and the instruction assigned of Master Control Center, send steering order; Driver module, for receiving the control signal of computing control system, is processed through the amplification of driver module, drives ON/OFF and power adjustment adjustment and the simultaneous interconnecting control of actuating mechanism controls distributed power source; Communication module is responsible for main station system being connected in real time, and send data.
4. the power distribution network coordinated control system of taking into account distributed power source according to claim 1, it is characterized in that: distributed energy storage device control terminal is comprised of data detection module, modular converter, computing control system, driver module and communication module, data detection module comprises that voltage vector, current phasor that voltage transformer (VT) summation current transformer is gathered up carry out analog acquisition, processing; Modular converter is that the simulation vector coming up through data detection module collection is carried out to A/D conversion, for computing control system, processes; Computing control system has supercomputing speed and data-handling capacity, be used for the mass data that computing and handle data transitions module are sent here, it comprises that voltage, current phasor signal to converting digital signal to carry out computing, calculate the frequency, meritorious and idle of distributed power source, and according to the ruuning situation of energy-storage units, and the instruction assigned of Master Control Center, send steering order; Driver module is for receiving the control signal of computing control system, amplification through driver module is processed, and drives ON/OFF and the power adjustment adjustment of actuating mechanism controls energy storage device, the duty (charged state, inverter mode, holding state) of simultaneously controlling energy storage device and simultaneous interconnecting to control; Communication module is responsible for main station system being connected in real time, and send data.
5. the power distribution network coordinated control system of taking into account distributed power source according to claim 1, it is characterized in that: distributed switch control terminal is comprised of data detection module, modular converter, computing control system, driver module and communication module, data detection module comprises that voltage vector, current phasor that voltage transformer (VT) summation current transformer is gathered up carry out analog acquisition, processing; Modular converter is that the simulation vector coming up through data detection module collection is carried out to A/D conversion, for computing control system, processes; Computing control system has supercomputing speed and data-handling capacity, be used for the mass data that computing and handle data transitions module are sent here, it comprises that voltage, current phasor signal to converting digital signal to carry out computing, calculate the meritorious and idle of switch place, and according to the ruuning situation of circuit, and the instruction assigned of Master Control Center, send steering order; Driver module, for receiving the control signal of computing control system, is processed through the amplification of driver module, drives the ON/OFF of actuating mechanism controls switch; Communication module is responsible for main station system being connected in real time, and send data, and this device only has state to control, i.e. a kind of function of open and close.
6. the control method of taking into account the power distribution network coordinated control system of distributed power source comprises that distributed energy storage device is coordinated to control, distributed power generation device is coordinated to control and distributed switch is coordinated to control three parts, it is characterized in that: distributed energy storage device is coordinated to control and is divided into following steps:
101 bring into operation;
102 systems are carried out self check, and as self check is normally carried out next step, self check is undesired returns to 102;
103 image data, comprising three-phase voltage, three-phase current and DC voltage, electric current;
The data that the 104 pairs of collections come up are carried out operational analysis;
105 will be uploaded to industrial computer after data processing;
106 wait master stations are assigned instruction, as do not receive new instruction, and operating part continues to carry out a upper instruction, and returns to 103, receives new instruction and carries out next step;
107 judge whether the instruction that master station is assigned is charging instruction, if carry out next step, if not carrying out 110;
108 pairs of energy-storage units charge;
109 judge whether the electric weight of energy-storage units is full of, if be full of, returns to 103, and underfill carries out 108;
110 judge whether the instruction that master station is assigned is inversion instruction, if carry out next step, if not carrying out 116;
111 judge whether to possess the condition of the same period, if possessed, carry out next step, if do not possessed, carry out 111;
112 judge whether required power adjustment, if do not need to carry out 114, need to carry out 115;
114 keep original power;
115 press workload demand adjustment;
116 wait command;
Return to 103;
Distributed power generation device is coordinated to control and is divided into following steps:
201 bring into operation;
202 systems are carried out self check, and as self check is normally carried out next step, self check is undesired returns to 202;
203 image data, comprising three-phase voltage, three-phase current and DC voltage, electric current;
The data that the 204 pairs of collections come up are carried out operational analysis;
205 will be uploaded to industrial computer after data processing;
206 wait master stations are assigned instruction, as do not receive new instruction, and operating part continues to carry out a upper instruction, and returns to 203, receives new instruction and carries out next step;
207 judge whether to open three-phase inversion device, if carry out next step, if not carrying out 207;
208 judge whether to possess the condition of the same period, if possessed, carry out next step, if do not possessed, carry out 208;
209 is grid-connected;
210 judge whether required power adjustment, if do not need to carry out 211, need to carry out 212;
211 keep original power;
212 press workload demand adjustment;
213 wait command;
Distributed switch is controlled and is comprised the following steps:
301 bring into operation;
302 systems are carried out self check, and as self check is normally carried out next step, self check is undesired returns to 302;
303 image data, comprising three-phase voltage, three-phase current and DC voltage, electric current;
The data that the 304 pairs of collections come up are carried out operational analysis;
305 will be uploaded to industrial computer after data processing;
306 wait master stations are assigned instruction, as do not receive new instruction, and operating part continues to carry out a upper instruction, and returns to 303, receives new instruction and carries out next step;
307 according to the instruction unpack of master station or stopcock;
308 return to 303.
CN201110122693.8A 2011-05-13 2011-05-13 Distribution network coordination control system and control method taking account of distributed power CN102169342B (en)

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