New energy plant station primary frequency modulation control device

Abstract

The utility model relates to the technical field of frequency modulation control of a new energy plant station, and solves the problems that when a connector at an interface is installed, the connector is easy to fall off, the transmission of the connector is interrupted, and the transmission quality and the working efficiency are reduced. The primary frequency modulation control device comprises a case, a control element is arranged in the case, a sealing cover is fixedly mounted at one end of the case, a mounting groove is formed in one side of the surface of the sealing cover, a display screen is arranged in the mounting groove, and an alarm is arranged on one side of the top of the sealing cover. A plurality of inserting pipes are arranged on the adjacent sides of the display screens, clamping assemblies are arranged in the inserting pipes and comprise limiting rings in threaded connection with the interiors of the inserting pipes, guide blocks are fixedly installed on the two sides in the limiting rings, connecting joints are slidably connected to the surfaces of the guide blocks, and limiting grooves are formed in the two sides of the surfaces of the connecting joints. And telescopic rods are fixedly mounted in the limiting grooves.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy plant station frequency control technical field, concretely is a kind of new energy plant station primary frequency control device. BACKGROUND

[0002] With the installed capacity of new energy (such as wind energy, solar energy etc.) plant station is more and more big, power generation proportion is more and more high, the country has successively issued a number of new energy plant station grid-connected management regulation, clearly proposes to wind farm, photovoltaic power station is included in the primary frequency range of power system.For the security of new energy power generation access to power grid, high quality, economic operation, realize electric energy resource optimization configuration and new energy power generation comprehensive utilization, according to the relevant regulations of state, industry, new energy grid-connected operation management, standard and specification requirements, the wind farm, photovoltaic power station of new 35kV And above voltage level access should have primary frequency function, under construction and built new energy plant station gradually carries out primary frequency technical reformation.

[0003] The power generation of new energy is greatly influenced by weather, and the primary frequency system can help the new energy plant station to better adapt to the grid demand when the power generation fluctuates, reduce the phenomenon of abandoned wind and light, and improve the consumption capacity of new energy. The primary frequency system can improve the speed and accuracy of the original unsatisfactory generator set and communication network, thereby improving the control effect of automatic generation control (AGC) of the plant station. This means that the operation of the entire power station is more efficient and reliable.

[0004] But the existing new energy plant station primary frequency control device is easy to fall off when installing the joint at the interface, causing the transmission of the joint to be interrupted, reducing the transmission quality and work efficiency, and the effect of the joint anti-falling is not good. UTILITY MODEL CONTENTS

[0005] To overcome the defects of the prior art, the utility model provides a new energy plant station primary frequency control device, which solves the problem that the joint at the interface is easy to fall off when installing the joint, causing the transmission of the joint to be interrupted, reducing the transmission quality and work efficiency.

[0006] To achieve the above object, the utility model provides the following technical scheme: a new energy plant station primary frequency control device, including the case, the inside of the case is provided with control element, one end of the case is fixedly installed with sealing cover, the surface of sealing cover is equipped with installation groove on one side, the inside of installation groove is provided with display screen, the top of sealing cover is provided with alarm on one side, the side of display screen is provided with a plurality of plug-in tubes, the inside of plug-in tube is provided with clamping assembly;

[0007] The clamping assembly comprises a limiting ring screwed in the plug-in pipe, guide blocks fixedly installed on both sides in the limiting ring, an adapter slidingly connected to the surface of the guide block, limiting grooves opened on both sides of the surface of the adapter, telescopic rods fixedly installed in the limiting grooves, springs sleeved on the surface of the telescopic rods, and mounting blocks fixedly installed at one end of the telescopic rods.

[0008] In a specific embodiment, a positioning groove is opened on one side of the surface of the adapter, the size of the positioning groove is adapted to the size of the guide block, and the guide block slides in the positioning groove.

[0009] In a specific embodiment, one side of the mounting block is in contact with the guide block, and the size of the mounting block is adapted to the size of the guide block.

[0010] In a specific embodiment, mounting plates are fixedly installed on both sides of the sealing cover, and through grooves are opened on both sides of the surface of the mounting plate.

[0011] In a specific embodiment, a mounting ring is fixedly installed on the top of the sealing cover, and an alarm is arranged in the mounting ring.

[0012] In a specific embodiment, a plurality of control grooves are arranged below the display screen in sequence, and control knobs are arranged in the control grooves.

[0013] Compared with the prior art, the new energy plant station primary frequency modulation control device has the following beneficial effects:

[0014] In the technical scheme, the case, the control element, the plug-in pipe and the clamping assembly are used in cooperation, in the process of use, the adapter is inserted into the limiting ring, then the adapter is rotated, the mounting block installs the adapter into the limiting ring through the positioning groove when the adapter is rotated, and the adapter is prevented from falling off at the interface.

[0015] In the process of use, the plug-in pipe and the limiting ring are rotated, the limiting ring is installed into the plug-in pipe, the adapter is inserted into the limiting ring through the guide block after the limiting ring is installed, the adapter is rotated, the spring on the surface of the adapter is extruded by the guide block when the adapter is rotated, the spring rebounds through the telescopic rod when the spring is extruded, the mounting block extrudes the guide block in the process of rebounding, the guide block enters the positioning groove, the adapter is installed, the efficiency of quick installation of the adapter is improved, and the adapter is prevented from falling off. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the application without imposing undue limitation thereon. In the drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the split structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the sealing cover structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the utility model Figure 3 It is a schematic diagram of the enlarged view of A in the utility model.

[0021] In the figure: 1, case; 2, control element; 3, sealing cover; 4, display screen; 5, alarm; 6, plug-in pipe; 7, clamping assembly; 71, limiting ring; 72, guide block; 73, adapter; 74, telescopic rod; 75, spring; 76, mounting block. DETAILED DESCRIPTION

[0022] The embodiments of the application will be described in detail below with the accompanying drawings and examples, so that the realization process of how the application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented.

[0023] Figures 1-4 For an embodiment of the utility model, a new energy plant station primary frequency modulation control device, including case 1, the inside of case 1 is provided with control element 2, one end of case 1 is fixedly installed with sealing cover 3, the surface of sealing cover 3 is provided with installation groove on one side, the inside of installation groove is provided with display screen 4, the top of sealing cover 3 is provided with alarm 5 on one side, the adjacent side of display screen 4 is provided with a plurality of plug-in pipes 6, the inside of plug-in pipe 6 is provided with clamping assembly 7.

[0024] The specific problem that the specific embodiment is aimed at is that when the adapter at the interface is installed, the adapter is prone to falling off, causing the adapter transmission to be interrupted, reducing the transmission quality and work efficiency. The utility model utilizes the cooperation of case 1, control element 2, plug-in pipe 6 and clamping assembly 7. In the process of use, the personnel inserts adapter 73 into the inside of limiting ring 71, and then rotates adapter 72. When adapter 72 is rotated, mounting block 76 will install adapter 72 into the inside of limiting ring 71 through positioning groove, reducing the occurrence of the adapter at the interface falling off.

[0025] The clamping assembly 7 comprises a limiting ring 71 threadedly connected in the plug-in pipe 6, guide blocks 72 are fixedly installed on both sides in the limiting ring 71, an adapter joint 73 is in sliding connection with the surface of the guide blocks 72, limiting grooves are formed in the surface of the adapter joint 73, telescopic rods 74 are fixedly installed in the limiting grooves, springs 75 are sleeved on the surface of the telescopic rods 74, mounting blocks 76 are fixedly installed at one end of the telescopic rods 74, a positioning groove is formed in one side of the surface of the adapter joint 73, the size of the positioning groove is matched with the size of the guide blocks 72, the guide blocks 72 slide in the positioning groove, one side of the mounting blocks 76 is in contact with the guide blocks 72, the size of the mounting blocks 76 is matched with the size of the guide blocks 72, in the use process, the personnel rotate the plug-in pipe 6 and the limiting ring 71, the limiting ring 71 is installed into the plug-in pipe 6, after the installation of the limiting ring 71, the personnel insert the adapter joint 73 into the limiting ring 71 through the guide blocks 72, after the insertion of the adapter joint 73 into the limiting ring 71, the personnel rotate the adapter joint 73, when the adapter joint 73 rotates, the springs 75 on the surface of the adapter joint 73 are extruded by the guide blocks 72, the springs 75 rebound through the telescopic rods 74 when being extruded, the mounting blocks 76 extrude the guide blocks 72 in the rebound process, the guide blocks 72 enter the positioning groove, the adapter joint 72 is installed, the efficiency of the quick installation of the joint is improved, and the situation that the joint falls off is reduced.

[0026] The SY520 high-precision frequency measurement device is a core component of a primary frequency modulation system, and is responsible for high-precision measurement of electrical parameters at a grid-connected point, and provides high-precision parameter values for primary frequency modulation system to execute active power / frequency droop curve calculation.

[0027] The SY520 high-precision frequency measurement device is designed based on a high-performance 32-bit microprocessor and a multi-channel 16-bit synchronous sampling ADC device, and can simultaneously measure three-phase electrical parameters of two lines, such as voltage, current, power and frequency signals.

[0028] The SY520 high-precision frequency measurement device is configured with 2-way 10M / 100M Ethernet ports, 2-way RS485 ports, 2-way CAN, 1-way PROFIBUS-DP port, 1-way IRIG-B time synchronization interface and one USB interface, supports MODBUS-RTU, MODBUS-TCP, IEC104, CANOPEN and other communication protocols. It can exchange data with a monitoring master station.

[0029] The SY520 high-precision frequency measuring device adopts full-Chinese man-machine interaction design, menu is simple and friendly, and is convenient to use, and the SY520 high-precision frequency measuring device has relay outputs such as alarm, accident and device fault.

[0030] The SY520 high-precision frequency measuring device adopts advanced digital signal processing technology and precise electronic components, ensures high precision and high stability of measurement results, and voltage and current measurement precision is less than or equal to 2 ‰; power measurement precision is less than or equal to 5 ‰, and frequency measurement precision is less than or equal to ± 0.002 Hz. Multiple communication interfaces, the SY520 high-precision frequency measuring device has two Ethernet, two RS45, two CAN communication interfaces and a PROFIBUS-DP interface, supports MODBUS-RTU, MODBUS-TCP, CANOPEN, IEC104 and other communication protocols, is convenient to integrate and exchange data with other systems, man-machine interaction is friendly, the SY520 high-precision frequency measuring device is formed by a man-machine interaction interface of Chinese liquid crystal display, key and state indicating lamp, full-Chinese operation menu, built-in large-capacity memory, and code field upgrade is supported.

[0031] In the specific embodiment, the installation plates are fixedly installed on both sides of the sealing cover 3, the through grooves are formed in the surfaces of the installation plates, the installation ring is fixedly installed on the top of the sealing cover 3, the alarm 5 is arranged in the installation ring, the control grooves are arranged below the display screen 4 in sequence, and the control knobs are arranged in the control grooves.

[0032] The control mode of the utility model is automatically controlled through the controller, the control circuit of the controller can be realized through simple programming of the person skilled in the art, the power supply also belongs to the public knowledge in the field, and the utility model is mainly used for protecting the mechanical device, so the control mode and the circuit connection of the utility model are not explained in detail.

[0033] It should be noted that in this paper, the term "including", "containing" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0034] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A new energy plant station primary frequency modulation control device, comprising a case (1), characterized in that: The inside of the case (1) is provided with control elements (2), one end of the case (1) is fixedly installed with a sealing cover (3), the surface of the sealing cover (3) is provided with a mounting groove on one side, the inside of the mounting groove is provided with a display screen (4), the top of the sealing cover (3) is provided with an alarm (5) on one side, the side adjacent to the display screen (4) is provided with a plurality of plug-in pipes (6), the inside of the plug-in pipe (6) is provided with a clamping assembly (7); The clamping assembly (7) includes a limiting ring (71) screwed in the inside of the plug-in pipe (6), the inside of the limiting ring (71) is fixedly installed with a guide block (72) on both sides, the surface of the guide block (72) is slidably connected with a connecting joint (73), the surface of the connecting joint (73) is provided with a limiting groove on both sides, the inside of the limiting groove is fixedly installed with a telescopic rod (74), the surface of the telescopic rod (74) is sleeved with a spring (75), one end of the telescopic rod (74) is fixedly installed with a mounting block (76).

2. The primary frequency modulation control device for a new energy plant station according to claim 1, characterized in that: The surface of the connecting joint (73) is provided with a positioning groove on one side, the size of the positioning groove is matched with the size of the guide block (72), and the guide block (72) slides in the positioning groove.

3. The primary frequency modulation control device for a new energy plant station according to claim 1, characterized in that: One side of the mounting block (76) is in contact with the guide block (72), and the size of the mounting block (76) is matched with the size of the guide block (72).

4. The primary frequency modulation control device for a new energy plant station according to claim 1, characterized in that: The both sides of the sealing cover (3) are fixedly installed with mounting plates, and the both sides of the surface of the mounting plate are provided with penetrating grooves.

5. The primary frequency modulation control device for a new energy plant station according to claim 1, characterized in that: The top of the sealing cover (3) is fixedly installed with a mounting ring, and the inside of the mounting ring is provided with an alarm (5).

6. The primary frequency modulation control device for a new energy plant station according to claim 1, characterized in that: The display screen (4) is provided with a plurality of control grooves below the adjacent side, and the inside of the control groove is provided with a control knob.

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