Dynamic adjustment and control method for pressurization of double superchargers of high-pressure generator

Abstract

The invention discloses a dynamic adjustment and control method for pressurization of double superchargers of a high-pressure generator, and relates to the technical field of high-pressure generators, the dynamic adjustment and control method for pressurization of double superchargers of the high-pressure generator comprises the following steps: step 1, detecting the running state of each supercharger; 2, detecting and judging in real time; step 3, judging reversing times and time; and 4, adjusting increment is set according to the reversing condition. Each set of superchargers is provided with a supercharger reversing valve, a reversing in-place sensor and a pump head pressure adjusting proportional valve, the working oil pressure of the two superchargers is controlled through double proportional valves, and the reversing times of the two superchargers in unit time are monitored in real time when the high-pressure generator supercharges; working oil pressure of the two superchargers is adjusted in real time according to comparison of reversing times of the two superchargers, the purpose of adjusting reversing balance of the superchargers is achieved, and under the condition that original functions of the high-pressure generator are not affected, the reversing frequency of the superchargers is balanced, and adjusting and reversing are stable and free of oscillation.

Description

Technical Field

[0001] The present invention relates to the technical field of high-voltage generators, and in particular to a method for dynamically regulating and controlling the boosting of a dual-supercharger of a high-voltage generator. Background Art

[0002] High voltage generator, also known as DC high voltage generator, is the traditional name of high voltage power supply. It refers to the high voltage power supply mainly used for insulation and leakage detection. Now there is no strict distinction between high voltage power supply and high voltage generator. DC high voltage generator adopts medium frequency rectification and filtering technology to solve the shortcomings of large ripple coefficient and unstable waveform of industrial frequency DC high voltage generator. It is a new technology product with the latest research, design and manufacture of DC high voltage generator. It is suitable for power departments, power departments of factories and mines, scientific research units, railways, chemical industry, power plants, etc. to carry out DC high voltage tests on zinc oxide lightning arresters, magnetic blow arresters, power cables, generators, transformers, switches and other equipment.

[0003] The existing technology has the following problems:

[0004] At present, the main boosting mechanisms of high-voltage generator superchargers are pistons and ceramic push rods. When the high-voltage generator adopts a dual supercharger, the after-sales maintenance of the supercharger piston and ceramic push rod will increase due to the different and unstable switching frequencies of the supercharger. Therefore, a dynamic adjustment control method for the boosting of a high-voltage generator dual supercharger is proposed. Summary of the invention

[0005] The object of the present invention is to provide a method for dynamically adjusting and controlling the boosting of a high-pressure generator with two superchargers, which uses a dual proportional valve to control the working oil pressure of the two superchargers, monitors the number of reversals of the two superchargers per unit time in real time when the high-pressure generator is boosting, and adjusts the working oil pressure of the two superchargers in real time according to the comparison of the number of reversals of the two superchargers, so as to achieve the purpose of adjusting the reversing balance of the superchargers, thereby solving the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A method for dynamically adjusting and controlling the boost pressure of a high-voltage generator and a dual-supercharger, the method comprising the following steps:

[0008] Step 1: Detect the operating status of each supercharger;

[0009] Step 2: Real-time detection and judgment;

[0010] Step 3: Determine the number and time of commutation;

[0011] Step 4: Set the adjustment increment according to the commutation situation.

[0012] A further improvement of the technical solution of the present invention is that the step 1 of detecting the operating status of each supercharger specifically includes the following detection contents:

[0013] Detect the number of commutations per unit time A;

[0014] Detect the changing trend of the number of commutation times B;

[0015] Variation trend of one-way switching time C.

[0016] A further improvement of the technical solution of the present invention is that: the step 1 of detecting the operating status of each supercharger further includes:

[0017] Calculate the average value of all supercharger A parameters as the adjustment target value Y;

[0018] The specific calculation formula is:

[0019]

[0020] In the formula, Y is the adjustment target value, A i is the number of reversing times of the i-th supercharger, and n is the total number of superchargers.

[0021] A further improvement of the technical solution of the present invention is that: the step 2, real-time detection and judgment specifically includes:

[0022] Real-time detection of the A parameter of each supercharger and comparison with Y;

[0023] Determine whether the A parameter is greater than the target value Y. If so, reduce the valve opening ratio; if not, increase the valve opening ratio.

[0024] A further improvement of the technical solution of the present invention is that: the step 3, determining the number and time of commutation, specifically includes:

[0025] After reducing the valve opening ratio and increasing the valve opening ratio, the changing trend B of the number of reversing times and the changing trend C of the reversing time are detected in real time;

[0026] Determine whether the change trends B and C are zero. If so, output that all supercharger switching is basically balanced. If not, reduce the adjustment increment X.

[0027] A further improvement of the technical solution of the present invention is that: the step 4, setting the adjustment increment according to the commutation situation specifically includes:

[0028] In the case of reducing the adjustment increment X, a suitable adjustment increment X for each supercharger is manually set according to the switching condition of the supercharger, and is input into step two.

[0029] A further improvement of the technical solution of the present invention is that each set of superchargers is equipped with a supercharger reversing valve, a reversing position sensor, and a pump head pressure regulating proportional valve.

[0030] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art:

[0031] 1. The present invention provides a method for dynamically regulating and controlling the boosting of a dual-supercharger of a high-voltage generator. Each set of superchargers is equipped with a supercharger reversing valve, a reversing position sensor, and a pump head pressure regulating proportional valve. The dual proportional valve is used to control the working oil pressure of the two superchargers. When the high-voltage generator is boosted, the reversing times of the two superchargers per unit time are monitored in real time. The working oil pressures of the two superchargers are adjusted in real time according to the comparison of the reversing times of the two superchargers, so as to achieve the purpose of regulating the reversing balance of the superchargers. Without affecting the original function of the high-voltage generator, the reversing frequency of the superchargers is balanced, and the reversing is adjusted smoothly without oscillation.

[0032] 2. The present invention provides a method for dynamically adjusting and controlling the boosting of a dual supercharger of a high-voltage generator. This control logic method is applied to the dynamic adjustment of the switching boosting of the dual superchargers of the high-voltage generator, which can effectively control the number of boosting operations of the dual superchargers per unit time to reach a balanced equality, prevent one supercharger from switching too fast and the other supercharger from switching too slowly, causing the supercharger that switches too fast to reach its service life prematurely, thereby ensuring the service life of the superchargers. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic flow chart of the regulation control method of the present invention. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with embodiments:

[0035] Example 1

[0036] like Figure 1 As shown, the present invention provides a high-voltage generator dual-supercharger boost dynamic adjustment control method, the high-voltage generator dual-supercharger boost dynamic adjustment control method comprises the following steps:

[0037] Step 1: Detect the operating status of each supercharger;

[0038] Step 2: Real-time detection and judgment;

[0039] Step 3: Determine the number and time of commutation;

[0040] Step 4: Set the adjustment increment according to the commutation situation.

[0041] The first step is to detect the operating status of each supercharger, and the specific detection contents include:

[0042] Detect the number of commutations per unit time A;

[0043] Detect the changing trend of the number of commutation times B;

[0044] Variation trend of one-way switching time C.

[0045] Wherein step 1, detecting the operating status of each supercharger also includes:

[0046] Calculate the average value of all supercharger A parameters as the adjustment target value Y;

[0047] The specific calculation formula is:

[0048]

[0049] In the formula, Y is the adjustment target value, A i is the number of reversing times of the i-th supercharger, and n is the total number of superchargers.

[0050] Step 2, real-time detection and judgment, specifically includes:

[0051] Real-time detection of the A parameter of each supercharger and comparison with Y;

[0052] Determine whether the A parameter is greater than the target value Y. If so, reduce the valve opening ratio; if not, increase the valve opening ratio.

[0053] Step 3, determining the number and time of commutation, specifically includes:

[0054] After reducing the valve opening ratio and increasing the valve opening ratio, the changing trend B of the number of reversing times and the changing trend C of the reversing time are detected in real time;

[0055] Determine whether the change trends B and C are zero. If so, output that all supercharger switching is basically balanced. If not, reduce the adjustment increment X.

[0056] The fourth step, setting the adjustment increment according to the commutation situation, specifically includes:

[0057] In the case of reducing the adjustment increment X, a suitable adjustment increment X for each supercharger is manually set according to the switching condition of the supercharger, and is input into step two.

[0058] Each booster is equipped with a booster reversing valve, a reversing position sensor, and a pump head pressure regulating proportional valve.

[0059] In this embodiment, each supercharger is equipped with a supercharger reversing valve, a reversing position sensor, and a pump head pressure regulating proportional valve. The dual proportional valve is used to control the working oil pressure of the two superchargers. When the high-pressure generator is boosted, the number of reversals of the two superchargers per unit time is monitored in real time. According to the comparison of the reversal times of the two superchargers, the working oil pressure of the two superchargers is adjusted in real time to achieve the purpose of adjusting the reversing balance of the superchargers. Without affecting the original function of the high-pressure generator, the reversing frequency of the superchargers is balanced, and the reversing is adjusted smoothly without oscillation.

[0060] The working steps of the present invention are:

[0061] Each booster is equipped with a booster reversing valve, a reversing position sensor, and a pump head pressure regulating proportional valve;

[0062] Detect the operating status of each supercharger, including detecting the number of commutations A per unit time, detecting the changing trend B of the number of commutations and the changing trend C of the one-way commutation time, and calculating the average value of the A parameters of all superchargers as the adjustment target value Y;

[0063] Real-time detection of the A parameter of each supercharger and comparison with Y to determine whether the A parameter is greater than the target value Y. If so, the valve opening ratio is reduced; if not, the valve opening ratio is increased.

[0064] After reducing the valve opening ratio and increasing the valve opening ratio, the changing trend B of the number of reversing times and the changing trend C of the reversing time are detected in real time to determine whether the changing trends B and C are zero. If so, the output is that the reversing of all superchargers is basically balanced. If not, the adjustment increment X is reduced, and the appropriate adjustment increment X for each supercharger is manually set according to the reversing situation of the supercharger.

[0065] In summary, the present invention achieves the following effects: using a dual proportional valve to control the working oil pressure of the two superchargers, monitoring the number of reversals of the two superchargers per unit time in real time when the high-pressure generator is boosting, and adjusting the working oil pressure of the two superchargers in real time according to the comparison of the number of reversals of the two superchargers, so as to achieve the purpose of adjusting the reversal balance of the superchargers. Without affecting the original function of the high-pressure generator, the reversing frequency of the superchargers is balanced, and the reversing is adjusted smoothly without oscillation. Applying this control logic method to the dynamic adjustment of the reversing boosting of the dual superchargers of the high-pressure generator can effectively control the number of boosting operations per unit time of the dual superchargers to reach a balanced equality, prevent one supercharger from reversing too fast and the other from reversing too slowly, resulting in the problem that the supercharger that reversals too fast reaches its service life prematurely, thereby ensuring the service life of the superchargers.

[0066] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A method for dynamically adjusting and controlling the boost pressure of a high-voltage generator dual-supercharger, characterized in that: The high-voltage generator dual-supercharger boost dynamic adjustment control method comprises the following steps: Step 1: Detect the operating status of each supercharger; Step 2: Real-time detection and judgment; Step 3: Determine the number and time of commutation; Step 4: Set the adjustment increment according to the commutation situation.

2. A method for dynamically adjusting and controlling the boosting of a high-voltage generator with dual superchargers according to claim 1, characterized in that: The step 1 of detecting the operating status of each supercharger specifically includes the following detection contents: Detect the number of commutations per unit time A; Detect the changing trend of the number of commutation times B; Variation trend of one-way switching time C.

3. A method for dynamically adjusting and controlling the boosting of a high-voltage generator with dual superchargers according to claim 2, characterized in that: The step 1 of detecting the operating status of each supercharger further comprises: Calculate the average value of all supercharger A parameters as the adjustment target value Y; The specific calculation formula is: In the formula, Y is the adjustment target value, A i is the number of reversing times of the i-th supercharger, and n is the total number of superchargers.

4. A method for dynamically adjusting and controlling the boosting of a high-voltage generator with dual superchargers according to claim 2, characterized in that: The step 2, real-time detection and judgment specifically includes: Real-time detection of the A parameter of each supercharger and comparison with Y; Determine whether the A parameter is greater than the target value Y. If so, reduce the valve opening ratio; if not, increase the valve opening ratio.

5. A method for dynamically adjusting and controlling the boosting of a high-voltage generator with dual superchargers according to claim 4, characterized in that: The step 3, determining the number and time of commutation specifically includes: After reducing the valve opening ratio and increasing the valve opening ratio, the changing trend B of the number of reversing times and the changing trend C of the reversing time are detected in real time; Determine whether the change trends B and C are zero. If so, output that all supercharger switching is basically balanced. If not, reduce the adjustment increment X.

6. A method for dynamically adjusting and controlling the boosting of a high-voltage generator with dual superchargers according to claim 5, characterized in that: The step 4 of setting the adjustment increment according to the commutation situation specifically includes: In the case of reducing the adjustment increment X, a suitable adjustment increment X for each supercharger is manually set according to the switching condition of the supercharger, and is input into step two.

7. A method for dynamically adjusting and controlling the boosting of a high voltage generator with dual superchargers according to claim 1, characterized in that: Each booster is equipped with a booster reversing valve, a reversing position sensor, and a pump head pressure regulating proportional valve.

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