CN106505554B - Application method and device of the sequential control in microgrid energy management system - Google Patents
Application method and device of the sequential control in microgrid energy management system Download PDFInfo
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Abstract
The application method and device that the present invention relates to sequential controls in microgrid energy management system, this method are as follows: according to the demand of disparity items and micro-grid system facility information, formulate sequential control plan, sequential control plan includes sequential control plan ID, entry condition and sequential control item, entry condition starts the condition to be met for sequential control, and sequential control item controls the flow operations of each step for configuration sequence；By configuration tool in advance by sequential control planned allocation into the corresponding automatic control flow chart of microgrid energy management system；After system puts into operation, microgrid energy management system executes sequential control according to the sequential control plan and the telemetering of SCADA system, remote signalling information of configuration.The device and SCADA system communication connection carry out data interaction, including sequential control plan module and sequential control planned allocation module.The present invention improves the adaptability and compatibility of microgrid energy management system, reduces the labor intensity and operational risk of operator.
Description
Technical field
The present invention relates to microgrid energy administrative skill, distributed electrical operated control method and sequential control technologies, specifically relate to
And a kind of application method and device of sequential control in microgrid energy management system.
Background technique
In recent years, with the development of economy, increasing to the demand of electric power, while the utilization of a large amount of fossil energies is to money
Source environment causes serious influence.And the renewable distributed energies such as wind energy, solar energy can be effectively solved the energy and ring
Border problem, is rapidly promoted and applied.Micro-capacitance sensor is by distributed generation resource, energy storage device, energy converter, associated loadings
Small distributed electricity generation system made of collecting with monitoring, protective device, being one can be realized self-contr ol, protection and management
Autonomous system, can both be incorporated into the power networks with bulk power grid, can also be with off-grid operation.
In order to give full play to micro-capacitance sensor to the managerial ability of distributed generation resource, energy storage device and associated loadings, effectively mention
High micro-capacitance sensor is safe and stable, economic operation level, and microgrid energy management system becomes essential effective means.However
Since the distributed generation resource from each producer used inside micro-capacitance sensor is many kinds of, and the operation control of distributed generation resource is simultaneously
Immature, there is no the specifications of standard to follow for control flow and control method, while big with electric car charge-discharge facility
Amount access, the universal and Demand Side Response of smart home are implemented in full, so that the structure of micro-capacitance sensor is increasingly complex, changeable, pipe
Reason control difficulty continues to increase, microgrid energy management system for different application scene adaptability also worse and worse.These
More stringent requirements are proposed for Energy Management System of the factor to micro-capacitance sensor.
Microgrid energy management system in the prior art is the microgrid energy management system of fixed operation process, this
System is after the advanced application of energy management obtains control strategy by energy management algorithm, to call directly remote control, the remote regulating of SCADA
Function implementation strategy, is illustrated in fig. 1 shown below.The operating process of the system is fixed, poor for the adaptability of different application scene.
Basic system functions one of of the sequential control function as intelligent substation, refer to through the single of automated system
Operational order is completed a series of breakers by rule automatically and is kept apart according to prespecified operation order and latching logic
The operation of pass realizes Substation Electric Equipment from operation, stand-by heat, cold standby to finally change the process of system running state
With the automatic conversion of the various states such as, maintenance, be it is a kind of in chronological order or the open loop mode that is controlled of logical order.This
The mode of operation of kind sequential control, can make operator more from a large amount of operation items, duration length, large labor intensity, behaviour
Make to detach in the high work of risk, not only improves the safe operation of power grid, decrease the possibility of maloperation.
Summary of the invention
The application method and device that the present invention provides sequential controls in microgrid energy management system, to improve micro- electricity
The adaptability and compatibility of network energy management system reduce the labor intensity and operational risk of operator.
In order to achieve the above objectives, the application method of sequential control of the invention in microgrid energy management system includes:
1) according to the demand of disparity items and micro-grid system facility information, sequential control plan, the sequence control are formulated
System plan includes sequential control plan ID, entry condition and sequential control item, and the entry condition is wanted by sequential control starting
The condition of satisfaction, the sequential control item control the flow operations of each step for configuration sequence；
2) sequential control planned allocation to microgrid energy management system is controlled automatically accordingly in advance by configuration tool
In process processed；
3) after system puts into operation, microgrid energy management system is according to the sequential control plan of configuration and SCADA system
Telemetering, remote signalling information execute sequential control.
The sequential control item includes the entry condition of each step of sequential control, remote control ID, remote regulating ID, Control Cooling, mistake
Waiting time after rate-determining steps and control after losing.
The entry condition includes the mathematical relationship group of the bound for the value for configuring telemetering ID or the state of configuration remote signalling ID
It closes.
The implementation procedure of sequential control are as follows:
A) judge whether the entry condition of sequential control meets, meet entry condition, in the works according to the sequential control
It is remotely controlled ID and Control Cooling, control is issued by SCADA system and judges control result, is returned when meeting entry condition or controlling
As a result fail, the rate-determining steps after executing failure；
B) sequential control runs succeeded, according to control after the waiting time waited, executed after the waiting time
Next sequential control.
For the non-key step in sequential control, the rate-determining steps after failure are set as continuing to execute.
For the committed step in sequential control, increase manual confirmation operation.
Project in step 1) is black starting-up control, the sequential control plan of the black starting-up are as follows:
A) entry condition are as follows: system busbar frequency and voltage telemeering are 0；
B) when the total number of load and distributed generation resource controllable in micro-grid system is N, top n step is configured to cut
Except load and distributed generation resource；
N+1 step, the start-up operation of main power source is configured according to project reality；
N+2, which has been walked, is configured to rack recovery operation, is arranged in order in system M rack switch according to project actual design
Recovery operation sequence；
N+M+1 has walked the step of configuration investment load and distributed power generation unit.
The application apparatus of sequential control of the invention in microgrid energy management system and SCADA system communicate to connect into
Row data interaction, the device include sequential control plan module and sequential control planned allocation module, the sequential control
Plan module is used for demand and micro-grid system facility information according to disparity items, formulates sequential control plan, described
Sequential control plan includes sequential control plan ID, entry condition and sequential control item, and the entry condition opens for sequential control
The dynamic condition to be met, the sequential control item control the flow operations of each step for configuration sequence；
The sequential control planned allocation module is used for through configuration tool in advance by sequential control planned allocation to micro- electricity
In the corresponding automatic control flow chart of network energy management system.
The device is located at outside microgrid energy management system, communicates to connect with microgrid energy management system and carries out data
Interaction.
The device configures inside microgrid energy management system.
The beneficial effects of the present invention are: sequential control is introduced the automatic control stream of microgrid energy management system by the present invention
Cheng Zhong encapsulates the interaction of microgrid energy management system and equipment with sequential control, microgrid energy can be managed advanced
Come using the operation isolation with physical device in project, shield different manufacturers, different control method, different control flows to
The problem of microgrid energy management system bring a large amount of incompatible, secondary development.According to the actual conditions of detailed programs equipment,
The object and sequence that operation is determined by configuring, thus the same field device of the Energy Management System for solving fixed operation process
The incompatibility problem of practical operation process improves the adaptability of system.Using the mode of operation of sequential control, operator can be made
Member is more from a large amount of operation items, detaches, not only improves in the high work of duration length, large labor intensity, operational risk
The safe operation of power grid decreases the possibility of maloperation.
The present invention is configured to last sequence by improving to sequential control technology, by the entry condition of next sequence item
Judgement of the item control result to micro-grid system state, realizes the closed-loop control of microgrid energy management, realizes long-time, complexity
The microgrid energy management and controlling tactics of logic；It applies in the functional module of the advanced Strategy Auto of microgrid energy management,
Keep the energy management strategies of micro-capacitance sensor more flexible, to adapt to more complicated, changeable structure and management and controlling tactics.According to not
Realize custom design based on configurable sequential control with the apparatus operation method of project demands and different manufacturers, and do not have into
The secondary exploitation of row has saved cost and the period of exploitation, has reduced the difficulty of system maintenance.
Detailed description of the invention
Fig. 1 is the microgrid energy management system structure chart of fixed operation process；
Fig. 2 is the microgrid energy management system structure chart of application order control of the present invention；
Fig. 3 is the flow chart that closed-loop control is realized in sequential control of the present invention；
Fig. 4 is improved sequential function chart in the present invention；
Fig. 5 is to improve sequential control in the present invention to be applied to off-network type micro-capacitance sensor black starting-up control flow chart.
Specific embodiment
Technical solution of the present invention is described in further detail with reference to the accompanying drawing.
The application method embodiment of sequential control of the invention in microgrid energy management system
Application method of the sequential control of the present embodiment in microgrid energy management system include:
1) according to the demand of disparity items, the telemetering of micro-grid system facility information and SCADA system, remote information, system
Determine sequential control plan, the sequential control plan includes sequential control plan ID, entry condition and sequential control item, described to open
Dynamic condition starts the condition to be met for sequential control, and the sequential control item controls the process of each step for configuration sequence
Operation；
2) by configuration tool in advance by sequential control planned allocation into microgrid energy management system；
3) after system puts into operation, microgrid energy management system passes through SCADA system according to the sequential control plan of configuration
System executes sequential control.
Sequential control plan ID is the index that sequential control is called in microgrid energy management system, i.e., when system calls certain
When sequential control corresponding sequential control can be found according to sequential control plan ID.Sequential control item is controlled for configuration sequence
The flow operations of each step comprising the entry condition of each step of sequential control, remote control ID or remote regulating ID, Control Cooling,
Waiting time after rate-determining steps and control after failure.The control point and control class of all supports provided in SCADA system
Type is all contained in sequential control item.
Following present the control flows of single sequential control plan, as shown in Figure 2:
1) judge whether the entry condition of the sequential control meets.Entry condition includes: the upper and lower of the value of configuration telemetering ID
The mathematical relationship combination of limit or the state of configuration remote signalling ID.
If 2) meet entry condition, the operation remote control ID and Control Cooling of control item, pass through SCADA system in the order
It issues control and judges control result.It is such as unsatisfactory for startup item condition, then directly executes the rate-determining steps after failure；
3) it is unsatisfactory for control condition or control returns the result failure, then execute the rate-determining steps after failure according to configuration；
If 4) sequence item runs succeeded, according to control after the waiting time waited, after the waiting time, execute
The process of next sequential control；
As shown in figure 4, this gives the control flows of entire sequential control:
1) system calls sequential control, judges whether to meet entry condition, when meeting entry condition, executes step 2)；
2) control item being not carried out is judged whether there is, if being, executes step 3), otherwise, executes step 10)；
3) judge whether remote control needs people to confirm, if being, execute step 4), otherwise, execute step 5)；
4) etc. to be confirmed, confirmation has been judged whether to, confirmation has been carried out and has entered step 5), otherwise, has executed step 6)；
5) judge whether control item meets control condition, if being, enter step 7), otherwise, enter step 8)；
6) judge whether cancellation or time-out, do not cancel and being also not timed-out, enter step 4), otherwise, enter step 10)；
7) it is remotely controlled, and judges to control whether success, if success, return step 2), otherwise, enter step 9)；
8) judge whether 9) time-out is entered step, otherwise, entered step 5) if overtime；
9) whether continue sequential control operation after judging failure, if being, enter step 2), otherwise enter step
10)；
10) remote control terminates.
The improvement to sequential control is embodied in above-mentioned steps, specific content of improving includes:
1) the entry condition judgement of each control item of sequential control is extended to multiple telemeterings, calculation amount mathematical relationship and remote signalling
The combination of state.The combination can be realized complicated system mode description, including system frequency state, voltage status, generator
Working condition, system reserve state etc..By introducing calculation amount mathematical relationship, custom-configuring for algorithm may be implemented, more
Improve the flexibility of system.
2) entry condition of next sequence item last sequence item control result is configured to sentence micro-grid system state
Disconnected, the closed loop for realizing system control is realized.
3) after controlling successfully, next sequence item ID is arranged to current sequence item, then loop control may be implemented；
4) configuration whether is continued to execute after failure, it is ensured that the implementation effect of sequence, non-key step are not influencing
It can be to continue after configuration failure in the case where safety and stability of uniting；
5) committed step can increase manual confirmation configuration, i.e., pop up in human-computer interaction interface and confirm frame, after manual confirmation
The sequential control item can just execute, to guarantee that micro-grid system operational safety is stablized.
Micro-grid system is abnormal after leading to entire grid power blackout, needs the confession of rapid development strategy and recovery system
The control of electricity, i.e. micro-capacitance sensor black starting-up.The following are the general control processes of micro-capacitance sensor black starting-up:
1) system failure power loss (decompression loses frequency)；
2) load, distributed generation resource are cut off, to reduce impact of the black starting-up moment to micro-capacitance sensor；
3) restore micro-capacitance sensor frequency, voltage support with the unit of self-startup ability in activation system；
4) gradually restore electricity rack；
5) distributed generation resource and investment load are gradually started according to micro-grid system state, load all puts into or without hair
Motor can be put into, then black starting-up control terminates；
It, will power generation characteristics, equipment operation stream according to different distributions formula power supply according to different projects during black starting-up
Journey, response time and rack are related to, and different engineering demands has been realized in configuration sequence control, and with reference to the accompanying drawing 5, it will be above-mentioned
The black starting-up that improved sequential control is applied to micro-capacitance sensor controls:
1) system busbar frequency, voltage telemeering are 0 entry condition as black starting-up sequence；
2) total number of load and distributed generation resource controllable in micro-grid system is set as N, the top n step of sequential control
The operation of configuration excision load and distributed generation resource；
3) N+1 is walked, and the start-up operation of main power source is configured according to project reality, this step is committed step, configuration
It is not continued to execute after failure；
4) N+2 has walked the recovery of configuration rack, and individual event entry condition is all that the voltage of system busbar, frequency are normal, previous
Walk that switch state is normal, according to project actual design be arranged in order in system M rack switch recovery operation sequentially, this part
Multiple combinations can be designed, the purpose for restoring rack is had reached；
5) N+M+1 has walked configuration investment load and power generation.Sequence item condition includes that micro-capacitance sensor frequency voltage is normal, rack
Switch state is normal and puts into the restrictive condition of load and power generation, according to the different situation of project, using different allocation plans.
Grid type micro-grid system has the support of big system, does not have to consider Capacity, directly advise according to micro-capacitance sensor
Delineate the ordering in launching of most stable scheme the configuration distributed power generation and load of timing；Off-network type system, without big system frequency
Voltage support, it is ensured that system stablizes the black starting-up algorithm needed to be introduced into energy management.
The principle of the black starting-up algorithm of off-network type microgrid energy management system is the spare and distributed electrical of guarantee system
Source permeability is met the requirements, and realizes the Rule of judgment of this algorithm by introducing calculation amount.
Calculation amount is provided that
Source nominal capacity: P has been put into micro-grid systemVolume=∑ (PVolume i*Ii), IiIt puts into/exits for distributed generation resource
State remote signalling, state 1 are investment, and 0 is to exit；
Power backup capacity in micro-grid system: PIt is standby=PVolume-∑PSource i；Wherein, PSource iIt is real for the generated output of distributed generation resource
When telemetry value, PVolume iFor distributed generation resource rated capacity；
Distributed generation resource permeability in micro-grid system:With
Wherein, PToFor the rated power of the generator to be put into of individual event configuration, PWind volumeFor the rated power of wind generator system, PLight volume
For the rated power of photovoltaic generating system；
Put into the combination condition of generator are as follows: PIt is standby> 0.2PVolumeAnd δWind< δWind seepsAnd δLight< δLight seepsAnd the generator remote signalling state
To be inactive, the permeability setting valve of corresponding types is selected according to the sequence control object；Wherein δWind seepsAnd δLight seepsFor actual items
Wind, light maximum permeability.
Put into the combination condition of load are as follows: PIt is standby< 0.2PVolumeAnd the load remote signalling is to exit state；
6) when the last one load is put into successfully or last generator puts into failure then end loop, sequential control
It completes, black starting-up control terminates.
The application apparatus embodiment of sequential control of the invention in microgrid energy management system.
Application apparatus of the sequential control of the present embodiment in microgrid energy management system and SCADA system communicate to connect
Data interaction is carried out, which includes sequential control plan module and sequential control planned allocation module, sequential control meter
Cover half block is drawn for the demand and micro-grid system facility information according to disparity items, formulates sequential control plan, sequence is controlled
System plan includes sequential control plan ID, entry condition and sequential control item, and the entry condition is wanted by sequential control starting
The condition of satisfaction, the sequential control item control the flow operations of each step for configuration sequence；
Sequential control planned allocation module is used for through configuration tool in advance by sequential control planned allocation to micro-capacitance sensor energy
It measures in the corresponding automatic control flow chart of management system.
The application apparatus can be located at microgrid energy management system outside, with microgrid energy management system communicate to connect into
Row data interaction.The device can also be configured inside microgrid energy management system, be integrated with microgrid energy management system.
As shown in Fig. 2, microgrid energy management system (abbreviation MEMS) is a kind of control managing device, internal includes more
Kind control management module, such as black starting-up control module, mode switch module, Optimized Operation module, operation control module.Its energy
Telemetering, the remote signalling information that SCADA system uploads enough are received, and realizes the sequential control of various projects by above-mentioned application apparatus.
The black starting-up control of micro-capacitance sensor may be implemented in application apparatus in the present embodiment, and specific control flow is referring to above-mentioned side
Method embodiment, no longer elaborates here.
Claims (8)
1. application method of the sequential control in microgrid energy management system, which is characterized in that this method comprises the following steps:
1) according to the demand of disparity items and micro-grid system facility information, sequential control plan, the sequential control meter are formulated
Drawing includes sequential control plan ID, entry condition and sequential control item, and the entry condition to be met for sequential control starting
Condition, the sequential control item controls the flow operations of each step for configuration sequence；
It 2) in advance will be in the automatic control flow chart of sequential control planned allocation to microgrid energy management system by configuration tool；
3) after system puts into operation, microgrid energy management system is distant according to the sequential control plan of configuration and SCADA system
It surveys, remote signalling information executes sequential control；
The entry condition includes the bound for the value for configuring telemetering ID or the mathematical relationship combination for configuring remote signalling ID state；
The entry condition of next sequential control item is configured to last sequential control item control result to micro-grid system state
Judgement, to form complete closed-loop control；
The control flow of sequential control are as follows: (1) judge whether the entry condition of the sequential control meets；Entry condition includes: to match
It sets the bound of the value of telemetering ID or configures the mathematical relationship combination of the state of remote signalling ID；
(2) if meeting entry condition, the operation of control item is remotely controlled ID and Control Cooling in the order, by under SCADA system
Hair controls and judges control result；It is such as unsatisfactory for startup item condition, then directly executes the rate-determining steps after failure；
(3) it is unsatisfactory for control condition or control returns the result failure, then execute the rate-determining steps after failure according to configuration；
(4) if sequence item runs succeeded, according to control after the waiting time waited, after the waiting time, under execution
The process of one sequential control.
2. application method of the sequential control in microgrid energy management system according to claim 1, which is characterized in that institute
Control after stating the entry condition that sequential control item includes each step of sequential control, remote control ID, remote regulating ID, Control Cooling, failure
Waiting time after step and control.
3. application method of the sequential control in microgrid energy management system according to claim 1, which is characterized in that right
Non-key step in sequential control, the rate-determining steps after failure are set as continuing to execute.
4. application method of the sequential control in microgrid energy management system according to claim 1, which is characterized in that right
Committed step in sequential control increases manual confirmation operation.
5. application method of the sequential control in microgrid energy management system according to claim 1, which is characterized in that step
It is rapid 1) in project be black starting-up control, the sequential control plan of the black starting-up are as follows:
A) entry condition are as follows: system busbar frequency and voltage telemeering are 0；
B) when the total number of load and distributed generation resource controllable in micro-grid system is N, it is negative that top n step is configured to excision
Lotus and distributed generation resource；
N+1 step, the start-up operation of main power source is configured according to project reality；
N+2, which has been walked, is configured to rack recovery operation, is arranged in order in system the extensive of M rack switch according to project actual design
Multiple operation order；
N+M+1 has walked the step of configuration investment load and distributed power generation unit.
6. application apparatus of the sequential control in microgrid energy management system, which is characterized in that the application apparatus and SCADA system
System communication connection carries out data interaction, which includes sequential control plan module and sequential control planned allocation module,
The sequential control plan module is used for demand and micro-grid system facility information according to disparity items, and formulation sequence is controlled
System plan, the sequential control plan includes sequential control plan ID, entry condition and sequential control item, and the entry condition is
Sequential control starts the condition to be met, and the sequential control item controls the flow operations of each step for configuration sequence；
The sequential control planned allocation module is used for through configuration tool in advance by sequential control planned allocation to micro-capacitance sensor energy
In the automatic control flow chart for measuring management system；
The entry condition includes the mathematical relationship combination of the bound for the value for configuring telemetering ID or the state of configuration remote signalling ID；
The entry condition of next sequential control item is configured to last sequential control item control result to micro-grid system state
Judgement, to form complete closed-loop control；
The control flow of sequential control are as follows: (1) judge whether the entry condition of the sequential control meets；Entry condition includes: to match
It sets the bound of the value of telemetering ID or configures the mathematical relationship combination of the state of remote signalling ID；
(2) if meeting entry condition, the operation of control item is remotely controlled ID and Control Cooling in the order, by under SCADA system
Hair controls and judges control result；It is such as unsatisfactory for startup item condition, then directly executes the rate-determining steps after failure；
(3) it is unsatisfactory for control condition or control returns the result failure, then execute the rate-determining steps after failure according to configuration；
(4) if sequence item runs succeeded, according to control after the waiting time waited, after the waiting time, under execution
The process of one sequential control.
7. application apparatus of the sequential control in microgrid energy management system according to claim 6, which is characterized in that should
Device is located at outside microgrid energy management system, communicates to connect with microgrid energy management system and carries out data interaction.
8. application apparatus of the sequential control in microgrid energy management system according to claim 6, which is characterized in that should
Device configures inside microgrid energy management system.
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| CN201610875445.3A CN106505554B (en) | 2016-09-30 | 2016-09-30 | Application method and device of the sequential control in microgrid energy management system |
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| CN201610875445.3A CN106505554B (en) | 2016-09-30 | 2016-09-30 | Application method and device of the sequential control in microgrid energy management system |
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| CN106505554A CN106505554A (en) | 2017-03-15 |
| CN106505554B true CN106505554B (en) | 2019-08-23 |
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| CN101916078A (en) * | 2010-07-23 | 2010-12-15 | 南京国电南自轨道交通工程有限公司 | Program control method supporting grid parallel branch logic |
| CN103279333A (en) * | 2012-09-29 | 2013-09-04 | 南京国电南自轨道交通工程有限公司 | Multi-node sequential control method based on SCADA system |
| CN105262131A (en) * | 2015-10-22 | 2016-01-20 | 华南理工大学 | Black-start system and black-start method applicable to light storage micro grid |
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| CN101916078A (en) * | 2010-07-23 | 2010-12-15 | 南京国电南自轨道交通工程有限公司 | Program control method supporting grid parallel branch logic |
| CN103279333A (en) * | 2012-09-29 | 2013-09-04 | 南京国电南自轨道交通工程有限公司 | Multi-node sequential control method based on SCADA system |
| CN105262131A (en) * | 2015-10-22 | 2016-01-20 | 华南理工大学 | Black-start system and black-start method applicable to light storage micro grid |
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