CN115267427A - New forms of energy electric power system state monitoring analysis terminal based on data drive - Google Patents
New forms of energy electric power system state monitoring analysis terminal based on data drive Download PDFInfo
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Abstract
The invention discloses a new energy power system state monitoring and analyzing terminal based on data driving, and relates to the technical field of power system monitoring and analyzing. The invention can effectively avoid the influence on the USB plugs at the two ends of the power supply wire and the equipment connected with the USB plugs after the middle section position of the power supply wire is pulled, prevent the occurrence of poor contact caused by mistaken contact, and further ensure the normal work of the alarm.
Description
Technical Field
The invention relates to the technical field of monitoring and analyzing of electric power systems, in particular to a new energy electric power system state monitoring and analyzing terminal based on data driving.
Background
A large amount of new energy with strong randomness is accessed into a power grid, and a severe challenge is brought to the voltage stability of the power system, so that the probability voltage stability analysis aiming at the power system is very important, and the probability voltage stability analysis can effectively reveal the influence of the uncertainty of the large-scale new energy output on the voltage stability of the power system.
In order to better perform probability voltage stability calculation in the prior art, a probability voltage stability evaluation algorithm based on wind and light data driving has been developed, the algorithm takes historical data such as wind speed, illumination intensity and the like as input, deeply excavates the correlation among input data through a bayesian network and establishes an input probability model based on data driving, then a random response surface method is adopted to establish a substitution model for voltage stability analysis, large-scale probability voltage stability calculation is performed based on the substitution model, and further probability analysis efficiency can be greatly improved.
When the algorithm is used for monitoring and analyzing the state of the power system, the algorithm is usually directly operated in a specific working computer, and the computer is connected with a power system database so as to capture the operating data of the power system in real time, and in addition, the working computer is also connected with an alarm through a USB interface so as to alarm when the output result exceeds a threshold value.
However, the above power system state monitoring and analyzing terminal still has some defects when being actually used by technicians in the field, and it is obvious that the alarm is connected with the host of the working computer through the USB interface on the working computer, and the host is usually placed at the bottom of the desk, so that in the using process, the situation that the USB end is knocked or the USB cable is pulled due to the leg action of the worker is easy to occur, the two situations may cause the situation that the alarm is in poor contact, and the normal alarm of the alarm cannot be guaranteed.
Therefore, it is necessary to invent a new energy power system state monitoring and analyzing terminal based on data driving to solve the above problems.
Disclosure of Invention
The invention aims to provide a new energy power system state monitoring and analyzing terminal based on data driving, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a new forms of energy electric power system state monitoring analysis terminal based on data drive, includes host computer and display, the host computer right side is provided with first installation mechanism, the display left side is provided with second installation mechanism, the fixed alarm that is provided with in second installation mechanism left side, the alarm bottom is provided with telescopic USB coupling mechanism, the alarm passes through telescopic USB coupling mechanism and is connected with the host computer, be provided with first stop gear and second stop gear on the telescopic USB coupling mechanism, first stop gear sets up on first installation mechanism, L shape positioning groove board and first grip block carry on spacingly to one casing in the telescopic USB coupling mechanism in the first stop gear, second stop gear sets up on second installation mechanism, second grip block and third threaded sleeve carry on spacingly to another casing in the telescopic USB coupling mechanism in the second stop gear.
Preferably, the first mounting mechanism comprises an inverted U-shaped mounting plate, a side clamping plate, a first screw, a first threaded sleeve and a C-shaped mounting plate;
the U-shaped mounting panel that falls cup joints and sets up in the host computer top, the side splint all are provided with two, two with first screw rod the side splint slip nestedly set up in the U-shaped mounting panel top both sides of falling and extend to the U-shaped mounting panel bottom of falling, two first screw rod runs through two side splint respectively and passes through the bearing rotation with two side splint and be connected, first threaded sleeve cup joints and sets up in two first screw rod outsides and with two first screw rod threaded connection, the C shape mounting panel is fixed to be set up in the U-shaped mounting panel right side of falling, C shape mounting panel bottom and host computer laminating.
Preferably, the second mounting mechanism comprises an upper groove plate, a lower groove plate, a pull ring, an outer lifting column, a first spring, an inner lifting column, a second spring and a locking compression rod;
the frid is located the frid top down, it cup joints jointly with lower frid and is provided with the display left side to go up the frid, the pull ring is fixed to be set up in frid top down, outer lift post slides and sets up in last frid inside, and its top and frid fixed connection down, first spring is located inside the frid, first spring one end and last frid inner wall fixed connection and the other end and outer lift post fixed connection, interior lift post slides nestedly and sets up inside outer lift post, the second spring is located inside outer lift post, second spring one end and outer lift post inner wall fixed connection and the other end and interior lift post fixed connection, locking depression bar slides nestedly and sets up on the frid right side, and with interior lift post fixed connection.
Preferably, the telescopic USB connecting mechanism comprises a power supply lead, a USB plug and two groups of telescopic mechanisms, and each telescopic mechanism comprises a shell, a winding roller, a rotating shaft and a torsion spring;
the USB plug is provided with two, two the USB plug is connected respectively in power conductor both ends, the casing slides to cup joint and sets up in the power conductor outside, the wind-up roll is located inside the casing, power conductor run through the wind-up roll middle part and with wind-up roll fixed connection, power conductor convolutes in the wind-up roll outside, the rotation axis all is provided with two, two with the torsional spring the rotation axis is fixed respectively and sets up in the wind-up roll both ends, two the torsional spring cup joints respectively and sets up in two rotation axis outsides, torsional spring one end and wind-up roll fixed connection and the other end and shells inner wall fixed connection.
Preferably, the first limiting mechanism comprises an L-shaped positioning groove plate, a first clamping plate, a second screw, a cladding plate and a first bevel gear;
l shape positioning groove board is fixed to be set up in C shape mounting panel inboardly, first grip block slides nestedly to be set up on C shape mounting panel, the second screw rod run through first grip block and with first grip block threaded connection, the cladding board rotates through the bearing and cup joints and sets up in the second screw rod outside and with C shape mounting panel fixed connection, first bevel gear is provided with two, two first bevel gear intermeshing, one the fixed cover of first bevel gear connects and sets up in the first threaded sleeve outside, another first bevel gear is fixed to be set up in second screw rod left end.
Preferably, the second limiting mechanism comprises a linkage screw, a second threaded sleeve, a U-shaped positioning groove plate, a second clamping plate, a guide rod, a third screw, a third threaded sleeve and a second bevel gear;
the linkage screw rod is fixedly arranged at the bottom end of the outer lifting column, the second threaded sleeve is sleeved with the second threaded sleeve and is arranged on the outer side of the second threaded sleeve in a threaded connection mode, the second threaded sleeve is rotated through a bearing and is arranged inside the upper groove plate, the U-shaped positioning groove plate is fixedly arranged on the side face of the upper groove plate, the second clamping plate is laminated and arranged at the end part of the U-shaped positioning groove plate, the guide rod is slidably nested and is arranged at the end part of the U-shaped positioning groove plate and is fixedly connected with the second clamping plate, one end of the third screw rod is fixedly connected with the second clamping plate, the other end of the third screw rod is connected with the inner side of the third threaded sleeve in a threaded mode, the third threaded sleeve is rotatably arranged inside the U-shaped positioning groove plate through the bearing, the second bevel gears are arranged in two-shaped meshing modes, one of the second bevel gears is fixedly sleeved with the outer side of the second threaded sleeve, and the other second bevel gears are fixedly arranged at the left end of the third threaded sleeve.
The invention has the technical effects and advantages that:
the first installation mechanism, the second installation mechanism, the telescopic USB connecting mechanism, the first limiting mechanism and the second limiting mechanism are arranged, so that the second installation mechanism can be conveniently installed on the host machine by utilizing the first installation mechanism, the second limiting mechanism is installed on the display by utilizing the second installation mechanism, meanwhile, in the installation process of the display and the second installation mechanism, the second installation mechanism and the second limiting mechanism can be respectively triggered, the second installation mechanism and the second limiting mechanism further fix the telescopic USB connecting mechanism, and then when a user mistakenly touches the middle section of the power lead and pulls the middle section of the power lead, two winding rollers are respectively driven by two ends of the middle section of the power lead to rotate, the winding rollers pay off the power lead when rotating, so that the middle section position of the power lead is in a loose state, the host machine and the display are prevented from being influenced when the middle section of the power lead is pulled, compared with the same type device in the prior art, the alarm can effectively prevent the influence on USB plugs at two ends of the USB devices after the middle section of the power lead is pulled, and prevent the contact condition caused by the mistaken touch, and further guarantee the normal work of the alarm.
Drawings
Fig. 1 is an overall front view structure diagram of the present invention.
Fig. 2 is a schematic front view of the first mounting mechanism and the first limiting mechanism of the present invention.
FIG. 3 is a schematic top view of the first mounting mechanism and the first limiting mechanism of the present invention.
FIG. 4 is a rear cross-sectional view of the second mounting mechanism of the present invention.
Fig. 5 is a front sectional structural schematic view of the telescopic USB connecting mechanism of the present invention.
FIG. 6 is a rear sectional view of the second mounting mechanism and the second limiting mechanism of the present invention.
In the figure: 1. a host; 2. a display; 3. a first mounting mechanism; 31. an inverted U-shaped mounting plate; 32. a side clamping plate; 33. a first screw; 34. a first threaded sleeve; 35. a C-shaped mounting plate; 4. a second mounting mechanism; 41. an upper groove plate; 42. a lower groove plate; 43. a pull ring; 44. an outer lifting column; 45. a first spring; 46. An inner lifting column; 47. a second spring; 48. locking the compression bar; 5. an alarm; 6. a telescopic USB connection mechanism; 61. a power supply lead; 62. a USB plug; 63. a housing; 64. a wind-up roll; 65. a rotating shaft; 66. a torsion spring; 7. a first limit mechanism; 71. an L-shaped positioning groove plate; 72. a first clamping plate; 73. a second screw; 74. a cladding plate; 75. a first bevel gear; 8. a second limiting mechanism; 81. a linkage screw; 82. A second threaded sleeve; 83. a U-shaped positioning groove plate; 84. a second clamping plate; 85. a guide bar; 86. a third screw; 87. a third threaded sleeve; 88. a second bevel gear.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention provides a new energy power system state monitoring and analyzing terminal based on data driving, which is shown in figures 1-6 and comprises a host 1 and a display 2, wherein a first mounting mechanism 3 is arranged on the right side of the host 1, a second mounting mechanism 4 is arranged on the left side of the display 2, an alarm 5 is fixedly arranged on the left side of the second mounting mechanism 4, a telescopic USB connecting mechanism 6 is arranged at the bottom of the alarm 5, the alarm 5 is connected with the host 1 through the telescopic USB connecting mechanism 6, a first limiting mechanism 7 and a second limiting mechanism 8 are arranged on the telescopic USB connecting mechanism 6, the first limiting mechanism 7 is arranged on the first mounting mechanism 3, an L-shaped positioning groove plate 71 and a first clamping plate 72 in the first limiting mechanism 7 limit one shell 63 in the telescopic USB connecting mechanism 6, the second limiting mechanism 8 is arranged on the second mounting mechanism 4, and a second clamping plate 84 and a third threaded sleeve 87 in the second limiting mechanism 8 limit the other shell 63 in the telescopic USB connecting mechanism 6.
As shown in fig. 1 and 2, first installation mechanism 3 includes the mounting panel of falling the U-shaped 31, side splint 32, first screw 33, first screw sleeve 34 and C shape mounting panel 35, wherein, the mounting panel of falling the U-shaped 31 cup joints and sets up in host computer 1 top, and the setting of the mounting panel of falling the U-shaped 31 is used for carrying on two side splint 32, side splint 32 all is provided with two with first screw 33, two side splint 32 slides nestedly to set up in the mounting panel of falling the U-shaped 31 top both sides and extend to the mounting panel of falling the U-shaped 31 bottom, two first screw 33 runs through two side splint 32 respectively and is connected through the bearing rotation with two side splint 32, first screw sleeve 34 cup joints and sets up in two first screw 33 outsides and with two first screw 33 threaded connection, C shape mounting panel 35 is fixed to be set up in the mounting panel of falling the U-shaped 31 right side, C shape mounting panel 35 bottom is laminated with host computer 1, and side splint 32, first screw sleeve 34 is used for making first screw sleeve 34 carry out the tractive to two first screw 33, and then makes first screw sleeve 33 drive first screw 33 and carry out first fixed mounting mechanism to host computer 3, and the fixed mounting mechanism is accomplished first screw 3.
As shown in fig. 4 and fig. 6, the second mounting mechanism 4 includes an upper slot plate 41, a lower slot plate 42, a pull ring 43, an outer lifting column 44, a first spring 45, an inner lifting column 46, a second spring 47, and a locking compression bar 48, wherein the lower slot plate 42 is located on the top of the upper slot plate 41, the upper slot plate 41 and the lower slot plate 42 are jointly sleeved with the left side of the display 2, the upper slot plate 41 and the lower slot plate 42 are arranged to be clamped on the left side of the display 2, the pull ring 43 is fixedly arranged on the top of the lower slot plate 42, the pull ring 43 is arranged to pull the lower slot plate 42, the outer lifting column 44 is slidably arranged inside the upper slot plate 41, and the top end of the outer lifting column is fixedly connected to the lower slot plate 42, the first spring 45 is located inside the upper slot plate 41, first spring 45 one end and 41 inner wall fixed connection of last frid and the other end and outer lift post 44 fixed connection, outer lift post 44 is used for driving it to reset by last frid 41 top after frid 42 breaks away from with the setting of first spring 45 down, interior lift post 46 slides nestedly and sets up inside outer lift post 44, second spring 47 is located inside outer lift post 44, second spring 47 one end and outer lift post 44 inner wall fixed connection and the other end and interior lift post 46 fixed connection, locking depression bar 48 slides nestedly and sets up in last frid 41 right side, and with interior lift post 46 fixed connection, interior lift post 46, second spring 47 and locking depression bar 48 set up and are used for being compressed tightly casing 63 by casing 63 top.
As shown in fig. 2, fig. 4 and fig. 5, the telescopic USB connecting mechanism 6 includes a power wire 61, a USB plug 62 and two sets of telescopic mechanisms, each telescopic mechanism includes a housing 63, a winding roller 64, a rotating shaft 65 and a torsion spring 66, wherein, the USB plug 62 is provided with two, two the USB plug 62 is respectively connected to two ends of the power wire 61, two the USB plug 62 is respectively connected to the host 1 and the alarm 5 in an inserting manner, the housing 63 is slidably sleeved on the outside of the power wire 61, the housing 63 is provided with the winding roller 64 for accommodating, the winding roller 64 is located inside the housing 63, the power wire 61 runs through the middle of the winding roller 64 and is fixedly connected to the winding roller 64, the power wire 61 is wound on the outside of the winding roller 64, the winding roller 64 is provided with two rotation shafts 65 and two torsion springs 66, the two rotation shafts 65 are respectively fixedly provided on two ends of the winding roller 64, two torsion springs 66 are respectively sleeved on the outside of the two rotation shafts 65, one end of the torsion spring 66 is fixedly connected to the winding roller 64 and the other end is fixedly connected to the inner wall of the housing 63, and the rotation shafts 65 and the torsion springs 66 are provided with the power wires 63 for resetting the power wire 63.
As shown in fig. 2 and 3, the first limiting mechanism 7 includes an L-shaped positioning slot plate 71, a first clamping plate 72, a second screw 73, a cladding plate 74 and a first bevel gear 75, wherein the L-shaped positioning slot plate 71 is fixedly disposed inside the C-shaped mounting plate 35, the first clamping plate 72 is slidably nested on the C-shaped mounting plate 35, the L-shaped positioning slot plate 71 and the first clamping plate 72 are disposed to clamp the housing 63, the second screw 73 penetrates through the first clamping plate 72 and is in threaded connection with the first clamping plate 72, the second screw 73 is disposed to drive the first clamping plate 72 to move left and right, the cladding plate 74 is rotatably sleeved outside the second screw 73 through a bearing and is fixedly connected with the C-shaped mounting plate 35, the cladding plate 74 is disposed to mount the second screw 73, the first bevel gears 75 are disposed two, the two first bevel gears 75 are engaged with each other, one first bevel gear 75 is disposed outside the first threaded sleeve 34, the other first bevel gear 75 is fixedly disposed at the left end of the second bevel gear 73, and the first bevel gear 75 is disposed to drive the second bevel gear 34 to synchronously rotate when the second bevel gear 73 rotates.
As shown in fig. 6, the second limiting mechanism 8 includes a linkage screw 81, a second threaded sleeve 82, a U-shaped positioning slot plate 83, a second clamping plate 84, a guiding rod 85, a third screw 86, a third threaded sleeve 87 and a second bevel gear 88, wherein the linkage screw 81 is fixedly disposed at the bottom end of the outer lifting column 44, the linkage screw 81 is disposed to drive the second threaded sleeve 82 to rotate, the second threaded sleeve 82 is sleeved outside the second threaded sleeve 82 and is in threaded connection with the second threaded sleeve 82, the second threaded sleeve 82 is rotatably disposed inside the upper slot plate 41 through a bearing, the second threaded sleeve 82 is disposed to drive the third threaded sleeve 87 to rotate through two second bevel gears 88, the U-shaped positioning slot plate 83 is fixedly disposed at the side of the upper slot plate 41, the second clamping plate 84 is attached to the end of the U-shaped positioning slot plate 83, the second clamping plate 84 is disposed to clamp and fix the housing 63 from the side of the housing 63, the guiding rod 85 is slidably nested at the end of the U-shaped positioning slot plate 83 and is fixedly connected with the second clamping plate 84, the guiding rod 84 is disposed at the outer side of the second bevel gear 84, the second clamping sleeve 88 and is disposed to drive the second threaded sleeve 88 to rotate, the second bevel gear 86, the second clamping sleeve 88 and the second bevel gear 88, the guiding rod 85 is disposed to drive the second threaded sleeve 88 to rotate, the second threaded sleeve 88, the second clamping sleeve 88, the second threaded sleeve 88, the guiding rod 84, the second clamping sleeve 88 and is disposed to drive the third threaded sleeve 88, the other second bevel gear 88 is fixedly arranged at the left end of the third threaded sleeve 87, and the second bevel gear 88 is arranged to drive the second clamping plate 84 to synchronously rotate when the second threaded sleeve 82 rotates.
Example 2
It should be further noted that, when the probabilistic voltage stability evaluation algorithm is generated, data collection of data such as topology, conventional power supply, load and the like in the power system is first required, a technician may establish a static voltage stability analysis model according to the data, it should be noted that, in the static voltage stability analysis of the power system, a nose point of a P-V curve represents a maximum load margin that can be borne by the system, which is also referred to as a voltage collapse critical point, a continuous power flow method is an effective means for calculating a maximum load margin (voltage collapse point) of the power system, the algorithm solves a load margin parameter epsilon based on a continuous power flow, and the formula is as follows:
the method comprises the following steps that PLi0 and QLi0 respectively represent active reference loads and reactive reference loads, PGi0 and QGi0 represent reference quantities of active power and reactive power of a traditional generator, PRI and QRI are active power and reactive power of wind power and photovoltaic power, KGi and KLi respectively represent multiplier coefficients of the load and the traditional generator, the maximum value of a load margin parameter epsilon is a maximum load margin and is represented by epsilon no, and when epsilon = epsilon no, a system is in a voltage collapse point (critical state).
Equation (1) can be solved iteratively and repeatedly by a predictive correction method, and if it is regarded as a implicit function of multiple inputs and single output, it can be abstractly expressed in the following form:
εnose＝f(X) (2)
wherein, the input variables represented by X include generator output, load, and power system topology parameters. If wind power and photovoltaic output uncertainties are considered and are regarded as random variables, the problem is converted into a probabilistic static voltage stability calculation problem;
after collection of wind power field wind speed data and photovoltaic power station illumination historical data in an electric power system is completed, an input probability model based on wind and light data driving is established by using a BN (boron nitride), namely a Bayesian network, wherein the Bayesian network uses multi-dimensional wind and light historical data as input, and a joint probability distribution considering multi-dimensional random variables is established based on a data mining view angle, so that the BN has strong capability of processing complex correlation information, generally, the BN comprises a structure diagram G and a parameter set B, each random variable Xi (i =1,2, \ 8230, n) is represented by a node in the structure diagram G, and the relationship and the influence degree among the variables are respectively described by directed edges and parameters B.
Let xi be a priori knowledge, X be a random variable, D = { X1= X1, X2= X2, \ 8230, xm = Xm } be an observed sample obtained by repeating an experiment m times, parameter θ is a priori probability (θ = P (X | ξ)) when event X = X occurs, and P (θ | ξ) is a probability density function of θ. When the prior probability density P (θ | ξ) when sample D and event X = X occur is known, P (Xm +1=xm +1 (+d, ξ) is obtained), which can be obtained by the total probability formula:
P(Xm+1＝xm+1|D,ξ)＝∫P(Xm+1＝xm+1|θ,D,ξ)P(θ|D,ξ)dθ (3)
the posterior probability P (theta | D, xi) can be obtained by the prior probability density P (theta | xi) according to Bayesian theorem:
the set of parent nodes of node Xi is denoted by Pa (Xi),
the conditional probability density of the random variable Xi is P (Xi | Pa (Xi), ξ). According to bayes' theorem, the global joint probability distribution can be expressed as:
then, selecting a small number of sample points to input a static voltage stability analysis original model based on LHS and obtaining a corresponding input/output sample set, and then establishing a substitution model of static voltage stability analysis based on an SRSM algorithm and combining the obtained small number of input/output data sets, wherein it needs to be explained that in the process of performing large-scale probability analysis by using the static voltage stability analysis original model of the power system, repeated iteration solving is needed to obtain the maximum load margin of the system each time probability calculation is performed, so that it is extremely time-consuming to directly perform probability calculation based on the original model, a stochastic response surface method uses an analytic algebraic polynomial to fit the function relation between input and output of the voltage stability analysis original model with high precision, further establishes the substitution model of the voltage stability analysis original model, performs large-scale PVSA by using the substitution model instead of the original model, can avoid large-scale iteration calculating, and remarkably improve the efficiency of probability analysis, and establishing the SRSM model mainly comprises the following three steps:
1) Establishing a chaotic polynomial containing a random variable to be solved
The input-output relation of the approximate voltage stability analysis original model based on the Hermite chaotic polynomial can be expressed as
Wherein xi is a random variable complying with standard normal distribution, and n is the number of input random variables; a0, ai1、ai28230, undetermined parameters of chaotic polynomial; hm (xi 1, xi 2, \ 8230;. Xi m) is an m-order Hermite polynomial of xi.
The higher the order m selected in equation (15), the higher the approximation accuracy to the original model, but the larger the amount of calculation. Generally, the 2 nd order chaotic polynomial is selected to have high practicability, and can be expressed as:
2) Defining the mapping relation between the probability distribution of uncertainty source and the normal distribution of standard in the power system
The conversion relation between the probability distribution of an uncertainty source in an actual power system and a random variable distributed from a standard normal is as follows:
X＝F-1(Φ(ξ)) (17)
wherein F-1 is the inverse of the cumulative probability distribution function of X; Φ is the cumulative distribution function of the standard normal distribution variable.
3) Determining a parameter to be determined
The main idea for solving the parameters to be determined in the formula (16) is as follows: a small number of sample points are extracted from an input probability model based on a Latin Hypercube Sampling (LHS) algorithm to perform small-batch probability voltage stability calculation on an input voltage stability analysis original model, a small number of input-output sample sets are obtained, and coefficients of a chaotic polynomial in a formula (16) are estimated by using a least square fitting method based on the input-output sample sets of the small number of original models. Assume that the system input and output relationships can be expressed as:
yi＝y(X)+ε (18)
the basic idea of the least squares fitting method is: the residual epsilon value is expected to be infinitely close to 0, and the truncated K +1 chaotic polynomial expansion coefficient is beta = (beta) on the assumption that n groups of input and output values of the probabilistic static voltage stability analysis exist0，β1，...，βK)TThen the coefficients can be solved by the following equations.
The optimal solution of the above formula is
In the formula:
once undetermined parameters of the chaotic polynomial expansion are obtained, a substitution model can be used for large-scale probability voltage stability analysis, and the SRSM has the main advantages that the substitution model of a complex static voltage stability calculation model is established by using a small number of input and output sample sets, and then the substitution model is used for participating in subsequent large-scale probability analysis calculation, so that the calculation efficiency is greatly improved;
and then selecting a large number of sample points to input the substitution model for PVSA calculation based on the input probability model considering the wind-solar correlation based on the LHS, and finally statistically analyzing the probability voltage stability calculation result.
The working principle of the invention is as follows:
in the actual use process, the inverted U-shaped mounting plate 31 is sleeved on the outer side of the top of the main machine 1, then the shell 63 adjacent to the first mounting mechanism 3 is placed on the inner side of the L-shaped positioning groove plate 71, then the first threaded sleeve 34 is rotated, the first threaded sleeve 34 drives the two first screws 33 to enter the first threaded sleeve 34 when rotated, and at the moment, the two side clamping plates 32 are clamped on the outer side of the main machine 1 under the driving of the two first screws 33, so that the first mounting mechanism 3 is fixed;
in the rotating process of the first threaded sleeve 34, the first threaded sleeve 34 drives the second screw rods 73 to rotate through the two first bevel gears 75, so that the second screw rods 73 drive the first clamping plates 72 to move right, the first clamping plates 72 moving right press the shell 63 on the inner side of the L-shaped positioning groove plate 71, and the shell 63 is fixed;
pulling the pull ring 43 while taking the upper groove plate 41, when the pull ring 43 is pulled, pulling the linkage screw 81 through the lower groove plate 42 and the outer lifting column 44, when the linkage screw 81 is pulled, driving the second threaded sleeve 82 to rotate, when the linkage screw 81 is pulled, driving the third threaded sleeve 87 to rotate through the two second bevel gears 88, and driving the second clamping plate 84 to move right through the third threaded sleeve 87;
in addition, when the outer lifting column 44 is pulled to ascend, the locking compression rod 48 ascends synchronously, at this time, a user can sleeve the upper groove plate 41 and the lower groove plate 42 on the left side of the main machine 1, then place the shell 63 adjacent to the second mounting mechanism 4 on the inner side of the U-shaped positioning groove plate 83, move the hand away from the pull ring 43, at this time, under the pulling of the first spring 45, the outer lifting column 44 drives the lower groove plate 42 to reset, and then clamps the lower groove plate on the left side of the main machine 1;
in the resetting process of the lower groove plate 42, the locking pressure rod 48 and the linkage screw 81 are respectively driven to descend by the outer lifting column 44, the locking pressure rod 48 is pressed and fixed by the top of the shell 63 when descending, the linkage screw 81 drives the second threaded sleeve 82 to rotate again when descending, so that the third threaded sleeve 87 drives the second clamping plate 84 to move leftwards and reset by the third screw 86, and the shell 63 is clamped and fixed by the second clamping plate 84 from the side surface;
then, the host 1 is used for operating the probability voltage stability evaluation algorithm, the calculation result is displayed through the display 2, and when the calculation result exceeds a threshold value, the alarm 5 gives an alarm to remind a worker;
protect power wire 61 end position when C shape mounting panel 35, it is touched by the user mistake to avoid the device in the use, it touches and leads to power wire 61 middle section to be dragged when the user takes place the mistake to power wire 61 middle section and draws, power wire 61 middle section both ends drive two wind-up rolls 64 respectively rotatory, wind-up roll 64 carries out the unwrapping wire to power wire 61 when rotatory, and then make power wire 61 middle section position be in lax state, influence host computer 1 and display 2 when avoiding power wire 61 middle section to be drawn and draw.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments, or make equivalent substitutions and improvements to part of the technical features of the foregoing embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a new forms of energy electric power system state monitoring analysis terminal based on data drive, includes host computer (1) and display (2), its characterized in that: host computer (1) right side is provided with first installation mechanism (3), display (2) left side is provided with second installation mechanism (4), second installation mechanism (4) left side is fixed and is provided with alarm (5), alarm (5) bottom is provided with telescopic USB coupling mechanism (6), alarm (5) are connected with host computer (1) through telescopic USB coupling mechanism (6), be provided with first stop gear (7) and second stop gear (8) on telescopic USB coupling mechanism (6), first stop gear (7) set up on first installation mechanism (3), L shape positioning groove board (71) and first grip block (72) carry out spacingly to one casing (63) in telescopic USB coupling mechanism (6) in first stop gear (7), second stop gear (8) set up on second installation mechanism (4), second grip block (84) and third threaded sleeve (87) carry out telescopic spacing to another casing (63) in USB coupling mechanism (6) in second stop gear (8).
2. The new energy power system state monitoring and analyzing terminal based on data driving according to claim 1, wherein: the first mounting mechanism (3) comprises an inverted U-shaped mounting plate (31), a side clamping plate (32), a first screw (33), a first threaded sleeve (34) and a C-shaped mounting plate (35);
fall U-shaped mounting panel (31) and cup joint and set up in host computer (1) top, side splint (32) all are provided with two, two with first screw rod (33) side splint (32) slide nested set up in fall U-shaped mounting panel (31) top both sides and extend to fall U-shaped mounting panel (31) bottom, two first screw rod (33) run through two side splint (32) respectively and are connected through the bearing rotation with two side splint (32), first threaded sleeve (34) cup joint set up in two first screw rod (33) outsides and with two first screw rod (33) threaded connection, C shape mounting panel (35) are fixed to be set up in falling U-shaped mounting panel (31) right side, C shape mounting panel (35) bottom is laminated with host computer (1).
3. The new energy power system state monitoring and analyzing terminal based on data driving according to claim 2, characterized in that: the second mounting mechanism (4) comprises an upper groove plate (41), a lower groove plate (42), a pull ring (43), an outer lifting column (44), a first spring (45), an inner lifting column (46), a second spring (47) and a locking compression rod (48);
lower frid (42) is located frid (41) top down, it cup joints jointly with frid (42) down and is provided with display (2) left side to go up frid (41), pull ring (43) are fixed to be set up in frid (42) top down, outer lift post (44) slide to set up in last frid (41) inside, and its top and frid (42) fixed connection down, first spring (45) are located inside frid (41), first spring (45) one end and last frid (41) inner wall fixed connection and the other end and outer lift post (44) fixed connection, interior lift post (46) slide nested the setting inside outer lift post (44), second spring (47) are located inside outer lift post (44), second spring (47) one end and outer lift post (44) inner wall fixed connection and the other end and interior lift post (46) fixed connection, locking depression bar (48) slide nested the setting in last frid (41) right side, and interior lift post (46) fixed connection.
4. The new energy power system state monitoring and analyzing terminal based on data driving according to claim 3, wherein: the telescopic USB connecting mechanism (6) comprises a power supply lead (61), a USB plug (62) and two groups of telescopic mechanisms, and each telescopic mechanism comprises a shell (63), a winding roller (64), a rotating shaft (65) and a torsion spring (66);
USB plug (62) is provided with two, two USB plug (62) is connected respectively in power wire (61) both ends, casing (63) slide to cup joint and set up in power wire (61) outside, wind-up roll (64) are located inside casing (63), power wire (61) run through wind-up roll (64) middle part and with wind-up roll (64) fixed connection, power wire (61) are convoluteed in wind-up roll (64) outside, rotation axis (65) all are provided with two, two with torsional spring (66) rotation axis (65) are fixed respectively and are set up in wind-up roll (64) both ends, two torsional spring (66) cup joint respectively and set up in two rotation axis (65) outsides, torsional spring (66) one end and wind-up roll (64) fixed connection and the other end and casing (63) inner wall fixed connection.
5. The new energy power system state monitoring and analyzing terminal based on data driving according to claim 4, characterized in that: the first limiting mechanism (7) comprises an L-shaped positioning groove plate (71), a first clamping plate (72), a second screw (73), a cladding plate (74) and a first bevel gear (75);
l shape positioning groove board (71) are fixed to be set up in C shape mounting panel (35) inboard, first grip block (72) slide nestedly and set up on C shape mounting panel (35), second screw rod (73) run through first grip block (72) and with first grip block (72) threaded connection, cladding plate (74) rotate through the bearing cup joint set up in second screw rod (73) outside and with C shape mounting panel (35) fixed connection, first bevel gear (75) are provided with two, two first bevel gear (75) intermeshing, one first bevel gear (75) fixed cover connect and set up in first threaded sleeve (34) outside, another first bevel gear (75) fixed set up in second screw rod (73) left end.
6. The new energy power system state monitoring and analyzing terminal based on data driving according to claim 5, wherein: the second limiting mechanism (8) comprises a linkage screw rod (81), a second threaded sleeve (82), a U-shaped positioning groove plate (83), a second clamping plate (84), a guide rod (85), a third screw rod (86), a third threaded sleeve (87) and a second bevel gear (88);
linkage screw (81) is fixed to be set up in outer lift post (44) bottom, second threaded sleeve (82) cup joint set up in second threaded sleeve (82) outside and with second threaded sleeve (82) threaded connection, second threaded sleeve (82) rotate through the bearing and set up inside last frid (41), U-shaped positioning frid (83) are fixed to be set up in last frid (41) side, second grip block (84) laminating sets up in U-shaped positioning frid (83) tip, guide bar (85) slip nestification sets up in U-shaped positioning frid (83) tip, and with second grip block (84) fixed connection, third screw (86) one end and second grip block (84) fixed connection and other end threaded connection are inboard in third threaded sleeve (87), third threaded sleeve (87) rotate through the bearing and set up inside U-shaped positioning frid (83), second bevel gear (88) is provided with two second bevel gear (88) intermeshing, one gear (88) fixed threaded sleeve (88) sets up in second bevel gear (82) outside the third threaded sleeve (87) thread sleeve (88) sets up in second bevel gear (88) left side sleeve (87).
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| CN211017555U (en) * | 2019-06-28 | 2020-07-14 | 河南交通职业技术学院 | USB interface with waterproof function |
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