CN107832915B - E-format file automatic generation method of stability control strategy - Google Patents
E-format file automatic generation method of stability control strategy Download PDFInfo
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- CN107832915B CN107832915B CN201710949898.0A CN201710949898A CN107832915B CN 107832915 B CN107832915 B CN 107832915B CN 201710949898 A CN201710949898 A CN 201710949898A CN 107832915 B CN107832915 B CN 107832915B
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Abstract
The invention relates to an E-format file automatic generation method of a stability control strategy, which comprises the following steps: acquiring data attributes and an operating state; defining a current value offline strategy; calculating a correlation coefficient set of the data attributes and the offline strategies and a configurable proportion weighting coefficient set of the data attributes and the offline strategies; calculating a final correlation coefficient of the data attribute and the off-line strategy, and determining whether the data attribute is related to the specific off-line strategy; combining related data attributes to form off-line strategy member items, and forming a single off-line strategy by a plurality of member items under the same off-line strategy; judging whether the offline strategy is in a current value offline state or not; and writing all current value offline strategies into an E-format offline strategy file, and automatically uploading the file to the master station. The method and the device solve the problems of poor timeliness, high requirements on quality of maintenance personnel and the like of manually maintaining the offline strategy files, improve the real-time performance of updating the current value offline strategy, and reduce the maintenance time and labor cost.
Description
Technical Field
The invention belongs to the field of safety and stability control of an electric power system, and particularly relates to an automatic generation method of an E-format file of a stability control strategy.
Background
With the great application of the power grid safety and stability control device in the power grid, the stability control device becomes an indispensable important device for the safe operation of the power grid. The stable control centralized management system provides an effective management tool. In advanced application of EMS systems such as D5000 and the like, development work of online real-time checking and early warning functions of a stability control proper value control strategy is gradually developed, and the stability control strategy under the current power grid operation mode is analyzed and evaluated in real time, so that the method has important significance for improving the adaptability of the stability control device proper value control strategy to the power grid and timely discovering the shortage of the control quantity of the stability control device.
At present, in online analysis and evaluation of security control strategies by an EMS system, the offline strategies of a stability control device are generally performed in a manual maintenance mode, and the operation and maintenance pressure is continuously increased along with the increase of the number, so that the influence of the change of the running state of the device on the offline strategies is difficult to reflect in time.
Therefore, in a plant station, the interface device is used for collecting the data of the stability control device, and the stability control off-line strategy file is automatically generated in a software mode, so that the source end maintenance of the data is realized, and the method has great significance for improving the real-time performance and reliability of on-line analysis and evaluation software in an EMS system and reducing the operation and maintenance pressure. Meanwhile, the risk caused by modifying the logic program of the operating stability control device is avoided, and the extra risk cost caused by modifying the stability control device by a user is avoided while the debugging amount is reduced.
Disclosure of Invention
The invention aims to provide an automatic E-format file generation method for a stability control strategy, and the electric box is strong in universality and applicable to various forklift models.
In order to achieve the purpose, the invention adopts the following technical scheme:
an E-format file automatic generation method of a stability control strategy comprises the following steps:
(1) acquiring data attributes and an operating state;
(2) defining an offline strategy which can be executed in the current state of the stability control device as a current value offline strategy;
(3) analyzing the correlation between the data attributes and the offline strategy, and calculating a correlation coefficient set Rs of the data attributes and the offline strategy: { Rs1，Rs2…RsnAnd a configurable set of proportional weighting coefficients δ for data attributes and offline policies: { Delta ]1，δ2…δnN represents the number of all offline strategies of each device;
(4) through thetax＝δxRsxCalculating a final correlation coefficient theta of the data attribute and the off-line strategy, and determining whether the data attribute is related to the specific off-line strategy;
(5) combining related data attributes according to a set logic relationship to form off-line strategy member items, and forming a single off-line strategy by a plurality of member items under the same off-line strategy;
(6) judging whether the offline strategy is in a current value offline state or not;
(7) and writing all current value offline strategies into an E-format offline strategy file, and automatically uploading the file to the master station.
In the method for automatically generating the E-format file of the stability control policy, in the step (6), the step of judging whether the single offline policy is in the current value offline state specifically includes the following steps:
(61) calculating the current value coefficient epsilon of each member item under each off-line strategy of the stability control devicex；
(62) Calculating the off-line strategy item current value coefficient epsilon ═ epsilon1ε2…εnN in the formula represents the number of member items in each offline strategy;
(63) and judging whether the off-line strategy is in a current value off-line state or not according to the coefficient epsilon.
The method for automatically generating the E-format file of the stability control strategy comprises the step (61) of calculating the current value coefficient epsilon of each member item under each off-line strategy of the stability control devicexBefore, the off-line strategy library needs to be updated, and the current value coefficient epsilon is carried out after the running state analysis of the stability control device is completed and the off-line strategy update is completedxAnd (4) calculating.
According to the technical scheme, the data attribute and the running state of the data acquired by background monitoring are analyzed and processed through a software method by utilizing a method of adding a conversion program and a matching device, the current value offline strategy of the stability control device is obtained through calculation, and is converted into the offline strategy description file in the E format for storage and uploading, so that the problems of poor timeliness and high requirements on quality of maintenance personnel of manually maintaining the offline strategy file are solved, the real-time performance of updating the current value offline strategy is improved, and the maintenance time and the labor cost are reduced.
Drawings
FIG. 1 is a flow chart of the method of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1, an automatic generation method for an E-format file of a stability control policy includes the following steps:
s1: acquiring data attributes and running states:
after the data connection between the stability control device and the interface device is established, a corresponding client is called according to the configuration of the interface device, data attributes and operation states are obtained from the stability control device according to the protocol of the original equipment, and after the data are obtained, the stability control device is inserted into a real-time database for buffering.
According to the invention, the interface device is additionally arranged on the stability control device, the existing background communication link of the device is utilized, the existing communication protocol is followed, the data attribute of the stability control device is collected, and the obtained data attribute is stored as a data attribute set.
S2: defining related data attributes under the same offline strategy to form offline strategy member items according to a set logical relationship, defining a set of a plurality of offline strategy member items formed according to the data-logical relationship as an offline strategy, and defining the offline strategy which can be executed under the current state of the stability control device as a current value offline strategy; the offline policy which can be executed in the current state of the device is defined as the current value offline policy.
S3: analyzing the correlation between the data attributes and the offline strategy, and calculating a correlation coefficient set Rs of the data attributes and the offline strategy: { Rs1，Rs2…RsnAnd a configurable set of proportional weighting coefficients δ for data attributes and offline policies: { Delta ]1，δ2…δnN in the formula represents the number of all offline strategies of each device;
after the interface device determines that the complete set of data attributes has been received, the data attributes are analyzed. Comparing the word description in the data attribute with the keyword table, classifying the information containing the same elements and the same functions according to the state, the condition and the result to form a data attribute set, and evaluating the correlation degree Rs of each data attribute and the stability control off-line strategy1In the formula, Attribute represents a data Attribute, Keyword represents a Keyword table, and Compare represents a comparison method; and traversing and comparing all data attributes to obtain a correlation coefficient set Rs of the offline policy: { Rs1，Rs2…Rsn}。
S4: combining the data attributes with the set of proportional weighting coefficients of the off-line strategy according to the engineering configuration to combine the data attributes with the set of proportional weighting coefficients of the off-line strategy according to the engineering configuration to be delta: { Delta ]1，δ2…δnIs multiplied by thetax＝δxRsxCalculating a final correlation coefficient theta of the data attribute and the off-line strategy, and determining whether the data attribute is related to the specific off-line strategy;
and combining related data attributes according to the logical relationship defined in the configuration to form offline policy member items, forming a single offline policy by a plurality of member items under the same offline policy, and forming an offline policy set by all offline policies of the device.
S5: combining related data attributes according to a set logic relationship to form off-line strategy member items, forming a single off-line strategy by a plurality of member items under the same off-line strategy, and forming an off-line strategy set by all off-line strategies of the device;
s6: updating the off-line strategy library, and calculating the current value coefficient epsilon of each member item under each off-line strategy of the stability control device after the operation state analysis of the stability control device is completed and the off-line strategy updating is completedxAnd calculating the off-line strategy item current value coefficient epsilon ═ epsilon1ε2…εnN in the formula represents the number of member items in each offline strategy; and judging whether the off-line strategy is in a current value off-line state or not according to the coefficient epsilon.
Judging whether the off-line strategy is in the current value off-line state, traversing the running state and each off-line strategy member item in the off-line strategy library when the running state or the off-line strategy set of the device is changed, and calculating the current value coefficient epsilon of each off-line strategy item member item of the devicexThen, the total equivalent coefficient epsilon of the off-line strategy entry is calculated1ε2…εnThe offline policy that can be executed by the device is marked as the value offline policy. And when the device does not meet the limitation condition of the composition item, setting the coefficient of the member item to be 0. When the logical relation coefficient of any one of the composition items is 0, the total coefficient is 0, and the offline strategy is judged to be the improper value strategy. And comparing whether each offline strategy in the offline strategy library is the current value offline strategy or not, and updating the current value offline strategy set.
S7: and according to the setting, writing all current value offline strategies into an E-format offline strategy file in a timing and conditional triggering mode, and automatically uploading the file to the master station.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (3)
1. An E-format file automatic generation method of a stability control strategy is characterized by comprising the following steps:
(1) acquiring data attributes and an operating state;
(2) defining an offline strategy which can be executed in the current state of the stability control device as a current value offline strategy;
(3) analyzing the correlation between the data attributes and the offline strategy, and calculating a correlation coefficient set Rs of the data attributes and the offline strategy: { Rs1，Rs2…RsnAnd a configurable set of proportional weighting coefficients δ for data attributes and offline policies: { Delta ]1，δ2…δnN represents the number of all offline strategies of each device;
(4) through thetax＝δxRsxCalculating a final correlation coefficient theta of the data attribute and the off-line strategy, and determining whether the data attribute is related to the specific off-line strategy;
(5) combining related data attributes according to a set logic relationship to form off-line strategy member items, and forming a single off-line strategy by a plurality of member items under the same off-line strategy;
(6) judging whether the offline strategy is in a current value offline state or not;
(7) and writing all current value offline strategies into an E-format offline strategy file, and automatically uploading the file to the master station.
2. The method for automatically generating the E-format file of the stability control strategy according to claim 1, wherein the method comprises the following steps: in the step (6), the determining whether the single offline policy is in the current value offline state specifically includes the following steps:
(61) calculating the current value coefficient epsilon of each member item under each off-line strategy of the stability control devicex；
(62) Calculating the off-line strategy item current value coefficient epsilon ═ epsilon1ε2…εnN in the formula represents the number of member items in each offline strategy;
(63) and judging whether the off-line strategy is in a current value off-line state or not according to the coefficient epsilon.
3. The method for automatically generating the E-format file of the stability control strategy according to claim 2, wherein the method comprises the following steps: in step (61), calculating the current value coefficient epsilon of each member item under each off-line strategy of the stability control devicexBefore, the off-line strategy library needs to be updated, and the current value coefficient epsilon is carried out after the running state analysis of the stability control device is completed and the off-line strategy update is completedxAnd (4) calculating.
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Citations (4)
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| CN102347613A (en) * | 2011-09-21 | 2012-02-08 | 国网电力科学研究院 | Method for automatically selecting on-line strategy and off-line strategy of transient security and stability emergency control of electrical power system |
| CN103513576A (en) * | 2013-10-29 | 2014-01-15 | 南京南瑞集团公司 | Bidirectional interaction method of E-format stability control scheme in intelligent stability control system |
| CN103716177A (en) * | 2013-11-18 | 2014-04-09 | 国家电网公司 | Security risk assessment method and apparatus |
| CN106356850A (en) * | 2016-11-04 | 2017-01-25 | 广东电网有限责任公司电力调度控制中心 | Safety and stability control device fault offline control strategy model generation method |
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Patent Citations (4)
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| CN102347613A (en) * | 2011-09-21 | 2012-02-08 | 国网电力科学研究院 | Method for automatically selecting on-line strategy and off-line strategy of transient security and stability emergency control of electrical power system |
| CN103513576A (en) * | 2013-10-29 | 2014-01-15 | 南京南瑞集团公司 | Bidirectional interaction method of E-format stability control scheme in intelligent stability control system |
| CN103716177A (en) * | 2013-11-18 | 2014-04-09 | 国家电网公司 | Security risk assessment method and apparatus |
| CN106356850A (en) * | 2016-11-04 | 2017-01-25 | 广东电网有限责任公司电力调度控制中心 | Safety and stability control device fault offline control strategy model generation method |
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