New energy intelligent operation system

Abstract

The invention relates to the technical field of new energy, and discloses a new energy intelligent operation system. The new energy intelligent operation system comprises a real-time monitoring system, a logic control system, an equipment management system and a management information system. The real-time monitoring system covers the functions of power prediction, early warning and alarm and energy efficiency evaluation; the logic control system realizes remote monitoring and power adjustment of the equipment; the equipment management system has a maintenance management function and an equipment management function; and the management information system provides statistical analysis and power transaction support. The new energy intelligent operation system provided by the invention is built through a cloud native technology, follows a safety protection principle, and improves the intelligent level of new energy operation.

Description

Technical Field

[0001] The present invention relates to the field of new energy technologies, and in particular to a new energy intelligent operation system. Background Art

[0002] With the rapid development of the new energy industry, the operation of new energy such as wind power generation and photovoltaic power generation faces many challenges. Under the traditional operation mode, the efficiency of equipment monitoring and management is low, and it is difficult to achieve real-time and accurate monitoring of new energy power stations. At the same time, the accuracy of new energy power prediction is insufficient, which affects power grid dispatching and consumption. In addition, the ability of equipment fault diagnosis and early warning is lacking, and potential hazards cannot be discovered in advance, resulting in a high equipment failure rate and increased operation and maintenance costs. In the context of power marketization, when new energy enterprises participate in power trading, they lack effective data analysis and decision-making support tools, and it is difficult to formulate optimal trading strategies to improve economic benefits.

[0003] Therefore, it is necessary to provide a new energy intelligent operation system to solve the above technical problems. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a new energy intelligent operation system.

[0005] The new energy intelligent operation system provided by the present invention includes: a real-time monitoring system for collecting power prediction and analysis of the station, equipment alarm and early warning management, and energy efficiency analysis of the power station equipment;

[0006] A logic control system for realizing remote centralized monitoring of equipment such as wind turbines and photovoltaic inverters and remote active power regulation based on AGC / AVC;

[0007] An equipment management system covering the overhaul management and basic data management of new energy equipment;

[0008] A management information system providing statistical analysis of new energy operation and power trading support;

[0009] A technical base built based on cloud native technology to ensure the autonomy, controllability, open source, domestic production, and advanced applicability of the system.

[0010] Preferably, the real-time monitoring system includes:

[0011] A power prediction module for providing short-term, ultra-short-term, and medium- and long-term power generation power prediction results of new energy power stations;

[0012] An early warning and alarm module for realizing early discovery and alarm of abnormal equipment operation status and potential hazards by constructing an early warning model;

[0013] An energy efficiency evaluation module for generating basic statistical reports, customized reports, and conducting index analysis and power curve analysis.

[0014] Preferably, the logic control system includes:

[0015] An operation mode module, which supports remote control operations of devices such as wind turbines and photovoltaic inverters;

[0016] A five-prevention interlock module, which provides the functions of electrical five-prevention in the collection station and centralized control five-prevention in the operation management center;

[0017] A power regulation module, which realizes coordinated regulation of wind-solar-storage based on AGC / AVC.

[0018] Preferably, the equipment management system includes:

[0019] An overhaul management module, which involves functions such as defect management, fault management, and work order management;

[0020] A health assessment module, which gives the equipment health index and status assessment through multi-dimensional data analysis of the equipment;

[0021] A status monitoring module, which collects and analyzes equipment operation data in real time to realize real-time monitoring of equipment status and early warning of abnormalities.

[0022] Preferably, the management information system includes:

[0023] A statistical analysis module, which covers functions such as index analysis, intelligent reports, and data maintenance management;

[0024] A power trading module, which supports data management, pre-analysis, in-process decision-making support, and trading review analysis of power trading.

[0025] Compared with related technologies, the new energy intelligent operation system provided by the present invention has the following

[0026] Beneficial effects:

[0027] 1. The real-time monitoring system realizes all-round and real-time monitoring of new energy station equipment, making the equipment operation status clear at a glance and improving equipment management efficiency.

[0028] 2. The power prediction module integrates multi-source numerical weather forecasts and uses advanced algorithms to improve the accuracy of new energy power generation prediction, assisting grid dispatching and consumption.

[0029] 3. The early warning and alarm module constructs an intelligent early warning model to discover equipment abnormalities and hidden dangers in advance, reducing the failure rate; the fault diagnosis function provides accurate diagnosis results to guide maintenance personnel to quickly handle faults.

[0030] 4. The power trading module provides comprehensive data analysis and decision-making support, covering functions such as market condition monitoring, trading strategy recommendation, and revenue review, assisting new energy enterprises to formulate scientific trading strategies and improve economic benefits.

[0031] Functions such as the system integration equipment ledger, defect management, and work order management, combined with intelligent scheduling and refined maintenance planning, realize the full life cycle management of new energy equipment, improving the operation and maintenance efficiency and quality. Specific implementation manners

[0032] The present invention will be further described below in conjunction with the implementation manners.

[0033] The new energy intelligent operation system proposed by the present invention is composed of a real-time monitoring system, a logic control system, an equipment management system, and a management information system based on the actual production operation business and the usage perspective. In terms of the technical architecture, products that are self-controlled, open-source domestic, advanced and applicable are selected to build the entire technical base based on cloud native technology, and the consistency and reusability of technical components in the production control area and the management information area are maintained as much as possible. In accordance with the requirements of relevant security protection plans, the network architecture fully implements the security protection principles of "security zoning, dedicated network, horizontal isolation, and vertical authentication".

[0034] 1. Real-time monitoring system

[0035] The real-time monitoring system is mainly for the personnel in the power generation department, equipment department, and technology department of the operation management center, providing users with functions such as power prediction and analysis of the collection station, equipment alarm and early warning management, and energy efficiency analysis of the station equipment. The main equipment includes wind farm equipment (including wind turbines and box transformers), photovoltaic field area equipment (photovoltaic modules and inverters), energy storage equipment (including battery cells, battery packs, PACK, PCS, and step-up transformers), and collection stations (main transformers, 220kV / 110kV GIS, reactive power compensation equipment, and synchronous condensers, etc.). The function classification of the new energy real-time monitoring system design scheme is as shown in the following table:

[0036] Table 1 Function classification table of the new energy real-time monitoring system design scheme

[0037]

[0038]

[0039] 1.1 Power prediction

[0040] The power prediction subsystem accesses the power prediction data of the collection station, such as power prediction curves, actual power output curves, data of the anemometer tower, photovoltaic environment monitoring data, weather forecast data, etc., into the operation management center, and integrally displays and provides queries on the human-machine interface. The operation and maintenance personnel can horizontally compare the power generation and power prediction accuracy of the corresponding field areas of the six collection stations. The power prediction module realizes the following functions:

[0041] (1) Provide short-term, ultra-short-term, and medium- and long-term power generation power prediction results for new energy stations;

[0042] (2) Support the centralized management and unified evaluation of prediction data, and support the assessment and analysis of regional double detailed rules and the accuracy comparison analysis.

[0043] (3) Provide multi-source numerical weather forecast results of new energy power stations and regional-level meteorological disaster and extreme weather warning results.

[0044] 1.2 Early Warning and Alarm

[0045] The early warning and alarm module collects and analyzes the operation data of equipment, constructs early warning models for wind turbines, photovoltaics, energy storage, and substation electrical equipment based on methods such as equipment operation modes, statistical analysis, and data iteration, discovers abnormal equipment operation states and equipment hidden dangers in advance, and gives alarms and early warnings in a timely manner. By pre-positioning the hidden danger investigation link, the failure rate of equipment units is reduced, and the operation stability is improved. It is used to formulate preventive maintenance plans, discover hidden dangers of vulnerable parts in advance, effectively handle potential problem hidden dangers, prevent losses before they occur, prepare spare parts in advance for parts that need to be replaced to reduce downtime, avoid greater losses caused by related failures and failures, and realize the intelligent power station management mode under the big data technology method.

[0046] Its specific functions include:

[0047] (1) Real-time Alarm: Remind the uneliminated or unconfirmed alarm information during the system operation in real time and push it to relevant users in a timely manner;

[0048] (2) Historical Alarm: Support querying all alarm information according to conditions such as equipment type, alarm occurrence time, alarm level, and whether it is confirmed;

[0049] (3) Alarm Handling: Support alarm confirmation, filtering, querying, and shielding handling methods;

[0050] (4) Real-time Early Warning: The page displays real-time early warning data in the form of a list and scrolls to display early warning information in real time;

[0051] (5) Early Warning Index Statistics: From the operation management center to the power station and then to a single device, the early warning statistics module comprehensively presents the early warning distribution and closed-loop progress from the whole to the part;

[0052] (6) Early Warning Model Management: Uniformly display and manage model information, and list the early warning ID, early warning model name, equipment manufacturer model, affiliated system, early warning level, creator, model source, and model-related operations.

[0053] 1.3 Energy Efficiency Evaluation

[0054] The energy efficiency evaluation module supports the statistics of the collected data of power generation equipment, collection stations, electricity meters, and environmental data, calculates the daily power generation, monthly power generation, annual power generation, loss of electricity, availability, average wind speed, power on the grid, power off the grid, on-site power consumption, comprehensive on-site power consumption, etc. of the equipment, and has the functions of screening, querying, and exporting power generation reports, electricity metering reports, loss of electricity reports, and availability reports according to multiple dimensions such as time, space, and category. Its specific functions include:

[0055] (1) Basic statistical reports: Support the statistics of the collected data of power generation equipment, collection stations, electricity meters, and environmental data, calculate the daily power generation, monthly power generation, annual power generation, loss of electricity, availability, average wind speed, power on the grid, power off the grid, on-site power consumption, comprehensive on-site power consumption, etc. of the equipment, and can automatically generate corresponding index data through scheduled tasks and store them in the database. Have the functions of screening, querying, and exporting power generation reports, electricity metering reports, loss of electricity reports, and availability reports according to multiple dimensions such as time, space, and category.

[0056] (2) Customized reports: Support customized development of daily reports, weekly reports, monthly reports, and annual reports according to user needs. Report indicators can be freely selected and combined, with a display form that combines graphics and data tables, and support export in multiple formats, such as Excel, Word, PDF, etc.

[0057] (3) Index analysis: Support custom index analysis, including support for selecting multiple stations, support for selecting multiple devices, support for selecting single or multiple index combinations, support for setting the statistical time period, support for selecting to display year-on-year and month-on-month at the same time, support for displaying the difference between the current value and the year-on-year and month-on-month values, and support for exporting query results.

[0058] (4) Power curve analysis: The power curve is a chart that describes the relationship between the active power of a wind turbine and the wind speed or the relationship between the active power output of a photovoltaic inverter and the light radiation intensity. The system supports analyzing the operation status and performance of wind turbines or photovoltaic inverters through the power curve.

[0059] (5) Trend analysis: Support freely selecting multiple measurement points and displaying the change trend of the measurement points over a period of time in the form of a curve for fault cause and equipment performance analysis. The axis values and scale intervals can be adjusted manually.

[0060] (6) Scatter analysis: Support customizing equipment measurement points as the X-axis and Y-axis of the scatter plot. For example, select the wind speed as the X-axis and the blade angle as the Y-axis, and select the wind speed and blade angle values at the same moment as the X coordinate and Y coordinate respectively to mark points on the scatter plot. Through the correlation analysis of two different measurement points, the purpose of exploring the operation law and fault cause of the equipment is achieved.

[0061] (7) Accident recall: The system supports the provision of accident recall function for the collection station. The system will replay the saved information on remote signal status, such as switch position, circuit breaker position, protection action, alarm, etc., as well as data such as voltage, current, active power, reactive power, etc., on the main wiring diagram interface of the collection station according to the scene when the accident occurred. The system supports the export of recall data for easy subsequent viewing.

[0062] 2. Logic control system

[0063] The logic control system realizes remote centralized monitoring of wind turbines, photovoltaic inverters, energy storage converters, box transformers, and booster stations, the centralized control and five-protection functions of the collection station equipment monitoring, and remote active power regulation based on AGC / AVC and computer monitoring systems. Its specific functions include:

[0064] (1) Operation mode module: Comprehensive monitoring of wind, solar, and energy storage new energy station equipment from the operation management center and collection station level. Based on the data interface opened by the equipment manufacturer, the start-up, shutdown, and fault reset of a single wind turbine, photovoltaic inverter, or energy storage converter or a group of wind turbines, photovoltaic inverters, and energy storage converters are realized, and the switch and knife switch of the box transformer and booster station equipment are realized. During the control or adjustment process, the system has strict safety measures to ensure the safety and reliability of the control operation and prevent the occurrence of misoperation.

[0065] (1.1) Wind turbine monitoring

[0066] From the perspectives of operation management center, station, unit and component, the wind turbine generator set’s wind speed, active power, power generation and other information are displayed in the form of numbers and charts.

[0067] It has control and operation functions such as starting, stopping, fault reset, and active power limitation of a single wind turbine generator set.

[0068] It has control operation functions such as starting, stopping, and fault resetting of wind turbine generator sets in a cluster, and has sequence control function for wind turbine generator sets in a cluster.

[0069] It has the function of tracking the effect of command execution, and refreshes and displays the status of the unit, active power, pitch angle, generator torque and other information in real time during the execution of control commands.

[0070] It has a customized fault reset function. The user manages the resettable fault codes and reset conditions in the system, and the reset operation is performed manually for resettable faults that meet the conditions.

[0071] Control operations have permission control and verification functions to ensure the safety of equipment operation.

[0072] (1.2) Photovoltaic inverter monitoring

[0073] Display information such as light intensity, active power, and power generation in the form of numbers and charts at the levels of the operation management center, station, equipment, and components.

[0074] Have control operation functions such as starting and stopping a single photovoltaic inverter.

[0075] Have control operation functions such as starting and stopping a group of photovoltaic inverters.

[0076] Have the function of tracking the execution effect of instructions, and refresh and display information such as status, active power, current, and voltage in real time during the execution of control instructions.

[0077] Have the function of customizing fault reset. The user manages the resetable fault codes and reset conditions in the system, and the resetable faults that meet the conditions are reset manually.

[0078] Control operations have permission control. Control operations have a verification function to ensure the safety of equipment operations.

[0079] (1.3) Energy storage converter monitoring

[0080] Display information such as energy storage charge and discharge power and charge and discharge amount in the form of numbers and charts at the levels of the operation management center, station, equipment, and components.

[0081] Have control operation functions such as starting, stopping, and fault reset of the energy storage system.

[0082] Have the function of tracking the execution effect of instructions, and refresh and display information such as status, charge and discharge power, current, and voltage in real time during the execution of control instructions.

[0083] Have the function of customizing fault reset. The user manages the resetable fault codes and reset conditions in the system, and the resetable faults that meet the conditions are reset manually.

[0084] Control operations have permission control. Control operations have a verification function to ensure the safety of equipment operations.

[0085] (1.4) Box transformer control

[0086] Display information such as box transformer temperature, current, and voltage in the form of numbers and charts at the levels of the operation management center, station, and equipment.

[0087] Have the function of remotely opening and closing the high- and low-voltage side switches of the box transformer.

[0088] Have the function of tracking the execution effect of instructions, and refresh and display key measuring point information of the box transformer, such as voltage, current, and switch status, in real time during the execution of control instructions.

[0089] Control operations have permission control and verification functions to ensure the safety of equipment operation.

[0090] (1.5) Equipment monitoring at the collection station

[0091] At the operation management center and station level, information such as the collection station, current, voltage, active power, reactive power, etc. is displayed in the form of numbers and charts.

[0092] In principle, dedicated power lines should be used when the operation management center remotely operates the substation equipment and meets the requirements of the local power grid dispatching agency.

[0093] The control instructions of the booster station include remote control of switches / knife switches, gear adjustment, constant pressure adjustment, hanging and removing signs, soft pressure plate insertion and withdrawal, and device reset.

[0094] The main wiring diagram page supports hanging and removing signs, manual setting of numbers, and the interval diagram supports hanging and removing signs, manual setting of numbers, and remote control operation.

[0095] Prompts are given when the booster station's control instructions are issued and control results are received.

[0096] (1.6) Regulator monitoring

[0097] The phase regulator is displayed in the form of numbers and charts from the perspectives of operation management center, collection station, equipment and components.

[0098] It has control operation functions such as starting and stopping of the phase modulator (the grid-connected switch of the phase modulator cannot receive remote control commands. The closing operation of the grid-connected switch of the phase modulator involves the problem of asynchronous grid connection, so it is necessary to start the machine and synchronize the grid connection, and it cannot be closed by remote control. The grid-connected switch of the phase modulator can be opened by remote control, but generally the normal shutdown operation method of reducing the load first and then opening the switch is adopted).

[0099] It has the function of tracking the effect of instruction execution, and refreshes the display status, active power, current, voltage and other information in real time during the execution of control instructions.

[0100] It has a customized fault reset function. The user manages the resettable fault codes and reset conditions in the system, and the reset operation is performed manually for resettable faults that meet the conditions.

[0101] Control operations have permission control. Control operations have verification functions to ensure the safety of equipment operation.

[0102] (2) Five-protection interlocking module: including the five-protection electrical system of the collection station and the five-protection centralized control system of the operation management center, providing the function of preventing misoperation and ensuring the safety of personnel and equipment. The five-protection system of the collection station is integrated by the secondary equipment manufacturer and is used for safety verification of local operation. The five-protection system of the centralized control system of the operation management center is integrated by the control and protection system and is used for safety verification of the operation of the centralized control center.

[0103] (2.1) Topological analysis

[0104] (2.1.1) Topological modeling

[0105] Based on the primary equipment models of six collecting stations, analyze the electrical connection relationships of equipment such as circuit breakers, disconnectors, earthing switches, busbars, and lines to form an equipment topological model, providing basic data support for topological analysis and topological five-prevention.

[0106] (2.1.2) Topological coloring

[0107] Based on the topological model, combined with the position signals (i.e., open and closed states) of opening and closing equipment such as circuit breakers, disconnectors, and earthing switches, as well as telemetry data of power source points, loads, etc., conduct topological analysis to obtain the energized, de-energized, and grounded conditions of the equipment, and distinguish and display them on the primary diagram with different colors.

[0108] (2.2) Logical five-prevention

[0109] (2.2.1) Circuit breaker anti-maloperation check

[0110] Provide circuit breaker anti-maloperation check service, receive equipment operation or remote control requests, conduct topological anti-maloperation check according to anti-maloperation rules, and return the check results.

[0111] (2.2.2) Disconnector anti-maloperation check

[0112] Provide disconnector anti-maloperation check service, receive disconnector operation requests, conduct topological anti-maloperation check according to anti-maloperation rules, and return the check results.

[0113] (2.2.3) Earthing switch anti-maloperation check

[0114] Provide earthing switch anti-maloperation check service, receive earthing switch operation requests, conduct topological anti-maloperation check according to anti-maloperation rules, and return the check results.

[0115] (3) Power regulation module: Power regulation realizes the optimal control of power through AGC / AVC and EMS based on the control strategies of equipment manufacturers and open equipment interfaces; realizes the remote comprehensive monitoring function of AGC / AVC, the active power regulation of the energy storage computer monitoring system, and the coordinated regulation function of wind-solar-storage at the collecting station level; has functions such as operation mode switching, adjustment of control parameters, and offset adjustment in the dispatching control mode.

[0116] (3.1) AGC / AVC comprehensive monitoring

[0117] It realizes the AGC / AVC remote integrated monitoring function, the active power regulation of the energy storage computer monitoring system, and the wind, solar and storage coordinated regulation function based on the collection station level. It has the functions of operating mode switching, control parameter adjustment, and offset adjustment in the dispatching control mode. In the dispatching control mode, the AGC system automatically adjusts according to the planned value curve issued by the dispatcher to ensure the highest priority of the dispatching AGC control, and the centralized control center can manually set the offset. When the dispatching control mode is exited, the centralized control center can manually set the control target.

[0118] AGC / AVC and energy storage computer monitoring system realize power control of the collection station. According to the access system design plan and access system approval opinions, this project has separate AGC systems for wind, solar and storage, separate AVC lower computers for wind and solar, and AVC upper computers for the entire collection station. Energy storage and phase modulation are all connected to the AVC upper computer.

[0119] (3.2) Wind, solar and energy storage coordinated regulation

[0120] In the subsequent stage, if the power grid company agrees that the operation management center will coordinate the active and reactive power of the subordinate stations as a whole, an AGC / AVC coordinated control system can be built on the operation management center platform. The base can be used as a cross-section for calculation, and the wind, light and energy storage in the base can be jointly controlled as several stations. The base AGC / AVC coordinated control system combines power forecasting and the requirements of the power grid company's dispatch. After calculation by the functional module, the power generation command is issued to the centralized power control system configured by the operation management center according to the optimal power allocation strategy. The optimal power allocation is made between the collection stations connected to the operation management center, and finally the AGC / AVC at the collection station allocates it to the corresponding power generation unit.

[0121] The AGC / AVC coordinated control system of the operation management center is designed for zoning and hierarchical control and regulation. It can connect to the dispatch of the power grid company and receive power or voltage instructions issued by the dispatch. It issues instructions to the AGC / AVC substations of the collection station through the control system of the operation management center according to the optimal power allocation strategy based on the different on-grid electricity prices of power stations built in different periods of the collection station, and supports manual allocation at the same time. In addition, a dispatching / operation management center switching soft handle is set in the AGC / AVC system of each collection station. When the handle is turned to the "operation management center" position, the AGC / AVC system of the operation management center receives the dispatching instructions, analyzes and calculates the optimal solution, and sends it to the AGC / AVC substation at the station end. When the handle is turned to the "dispatching end", the collection station end directly receives the dispatching instructions, and controls and adjusts the equipment in the station according to the optimal solution after analysis and calculation.

[0122] (3.2.1) Automatic Generation Control (AGC)

[0123] A. General requirements for automatic generation control

[0124] Automatic generation control should fully consider the operation mode of the collection station and shall have functions such as active power combined control and economic operation.

[0125] Active power combined control refers to reasonably distributing the load among all collection stations participating in active power combined control according to a certain total active power given mode.

[0126] Economic operation refers to determining the optimal number of operating equipment in the collection station, the optimal combination of operating wind, light, and energy storage, and realizing the economic load distribution among operating units on the premise of following the minimum number of regulations and the minimum number of automatic start-ups and shut-downs according to the requirements of the total load and frequency of the collection station. During automatic generation control, the automatic start-up and shut-down functions of the collection station units can be realized.

[0127] The AGC (Automatic Generation Control) of the collection station should be able to set the "combined control / single control" control mode for the control of the active power of the collection station respectively. When the collection station is in "combined control", the collection station participates in the AGC combined control. When it is in "single control", the collection station does not participate in the AGC combined control, but can accept other control methods of the operator for this collection station.

[0128] B. There are the following several ways for the automatic generation given value:

[0129] Given total active power;

[0130] Given daily load curve;

[0131] Given frequency;

[0132] Given system frequency limit.

[0133] The switching of the above various ways should be carried out without disturbance, and the given ways include two types: operation management center and dispatching given.

[0134] C. The constraint conditions of automatic generation control include the following points (not limited to this):

[0135] The power generation requirements of the superior dispatching for the collection station, maximum load limit, P-Q limit curve, line load limit, collection station accident, current state of power generation equipment.

[0136] Units that do not have automatic control should automatically withdraw from automatic generation control. Automatic generation control should allow operators to input or withdraw through the man-machine interface.

[0137] (3.2.2) Automatic Voltage Control (AVC)

[0138] A. General requirements for automatic voltage control

[0139] The automatic voltage control shall be able to adjust the reactive power of the whole station in real time according to the bus voltage of the outgoing line of the collection substation, so as to maintain the bus voltage within the given range and evenly and reasonably distribute the reactive power of the collection substation among the operating units.

[0140] For the control of the reactive power of each power station by the AVC of the collection substation, the "joint control / single control" mode shall be set separately for each power station. When a certain collection substation is in the "joint control" mode, the collection substation participates in the AVC joint control. When a certain power station collection substation is in the "single control" mode, the collection substation does not participate in the AVC joint control, but can be controlled by other methods. The "joint control / single control" control mode of the AVC for the collection substation can be set by the operation and maintenance personnel.

[0141] B. There are the following several ways for the automatic voltage set value:

[0142] Bus voltage limit value;

[0143] The bus voltage value given by the operation personnel (including the operation management center and the dispatching);

[0144] The reactive power set value given by the operation personnel (including the operation management center and the dispatching).

[0145] The above various given methods include two types given by the operation management center and the dispatching. When switching between various methods, seamless switching should be achieved.

[0146] When the bus voltage limit value method is adopted, the AVC shall automatically maintain the bus voltage by adjusting the main transformer voltage regulating switch, reactive power compensation device and synchronous condenser supporting the collection substation participating in the joint control.

[0147] While displaying the given bus voltage value, the actual voltage value shall also be displayed.

[0148] This function module can be developed after the grid company opens the group dispatching authority. 3. Equipment management system

[0149] The equipment management system covers the maintenance management of new energy equipment and the management of equipment basic data. Its specific functions include:

[0150] (1) Maintenance management: involving defect management, equipment management, operation management, task management, warehousing management, etc.

[0151] Among them, defect management involves applications such as defect registration, fault registration, work order management, work permit, optimization of technical supervision plan and application for new fault codes, equipment construction application, etc. Specifically:

[0152] (1) Defect registration

[0153] In accordance with the requirements of the design defect management system, it includes a total of four types of defects, among which:

[0154] Type A Defects: Defects that directly threaten the safe operation of the equipment or the full output of the whole plant and need to be dealt with immediately, otherwise accidents such as equipment damage, casualties, large-scale power outages, and fires may occur; or defects that can only be eliminated through shutdown for major repairs or major technical transformations; defects that directly threaten the scrapping of major components of the fan.

[0155] Type B Defects: Defects that pose serious safety hazards to personnel, equipment, infrastructure, and safety, health, and environmental protection facilities, can temporarily continue to operate but need to be dealt with as soon as possible; or defects that require the shutdown of the main equipment and emergency repairs or minor repairs to be eliminated.

[0156] Type C Defects: Defects that can be eliminated by modifying control parameters without stopping the operation of the main equipment, without affecting the output of the fan and the full output of the entire wind farm; or defects with general nature and minor situation, having little impact on safe operation, and can be included in the annual or monthly maintenance plan for centralized handling; as well as defects caused by construction, design, or use process in infrastructure such as production workshops, buildings, and living facilities, defects caused by imperfect safety, health, and environmental protection facilities, and defects that have no direct impact on the safe operation of the equipment.

[0157] The new energy equipment management system solution adds Type D Defects on the basis of the original three types of defects. Type D Defects are mainly defects of general facilities in the station, which do not affect the normal production operation of the station.

[0158] On the basis of the original new energy equipment management system solution, the following optimizations are made:

[0159] A new reminder function is added. The defect creation time is defaulted to the start time of defect handling, and the defect handling completion plan time is automatically generated according to the defect category. Whether the Type A defect involves major components can be automatically identified through the KKS code, and at the same time, according to the defect category, it has the task due reminder function.

[0160] The rules for early reminder are: starting from the defect creation time, remind after 24 hours for Type A; remind 2 days in advance for major components; remind 10 days in advance for Type A; remind 30 days in advance for Type C; remind 90 days in advance for Type D.

[0161] A new option for whether it is a major component is added;

[0162] A new function for copying defect records is added;

[0163] Defects can be batch input through the EXCEL template;

[0164] Defect reports are added, supporting multi-dimensional defect queries, which can be queried according to multiple dimensions such as defect task creation personnel and defect sources, and have the function of exporting defect detail reports. The statistical dimensions include: defect closed-loop statistics; statistics according to base, field area, and defect category; statistical defect list.

[0165] Streamline the list display fields, configure the existing list fields into the advanced query page, and at the same time, the time period query function for each time field needs to be added;

[0166] Configure the default filtering result set at the group company level to facilitate regional company users to query the defects within their regions.

[0167] (2) Fault registration

[0168] Add reports with fault query functions, support multi-dimensional queries, and enable statistical queries of fault information through multiple dimensions such as the field area, collection station, equipment type, system, fault code, and time.

[0169] Streamline the list display fields, configure the existing list fields into the advanced query page, and at the same time, the time period query function for each time field needs to be added.

[0170] Add reports such as duplicate data (selecting the same unit or main system within 30 days, or selecting the same fault code is judged as duplicate data).

[0171] Fault registration data can be batch input through the EXCEL template.

[0172] Configure the default filtering result set at the group company level to facilitate regional company users to query the faults within their regions.

[0173] (3) Work order management

[0174] Streamline the list display fields, configure the existing list fields into the advanced query page, and at the same time, the time period query function for each time field needs to be added.

[0175] Add a work order statistics report.

[0176] Including the following: 1) Work order list; 2) Statistical processing time limit according to work order type and specialty; 3) Horizontal comparison of collection stations.

[0177] Upload the operation instruction manual in the technical supervision plan, and the operation instruction manual will be automatically brought out after the work order is generated to solve the problem of repeated upload of the operation instruction manual for periodic technical supervision work orders.

[0178] Reminder for work order timeout and pending assignment.

[0179] The work order has the functions of suspension and resumption.

[0180] Reminder for judging the logical rationality of time when filling in the work order.

[0181] The judgment logic is as follows:

[0182] (1) For defect, technical improvement, regular inspection, patrol inspection, and detection work orders, when filling in the completion report, the start downtime of the downtime details should be greater than the work order confirmation and issuance time. If it is less, an error reminder will be given; for fault work orders, the start downtime of the downtime details should be less than the work order confirmation and issuance time. If it is greater, an error reminder will be given.

[0183] (2) In the completion report, the end time should be greater than the start time and less than the error reminder.

[0184] (3) Add a repeated reminder for downtime. When there is already downtime in the work order or there is force majeure downtime in the operation log, when filling in the same equipment later with existing downtime, an error reminder will be given.

[0185] (4) When the downtime is less than 1 hour (the end time of the downtime details minus the start time), a reminder will be given that the downtime is too short (most of the fan boarding maintenance operations are greater than 1 hour).

[0186] (5) For regular inspection work orders of direct-drive regular inspection throughout the year, it should be 6 hours or more, and for double-fed regular inspection, it should be 12 hours or more. A reminder will be given when it is less than this time.

[0187] (6) According to the time period filled in for force majeure in the operation log, when filling in the completion report, the completion time cannot be filled in the time interval when force majeure occurs, otherwise the user will be reminded.

[0188] For defect work orders, different acceptance processes are configured according to the defect type.

[0189] Improve the system type data of the fan work order type differentiation field;

[0190] Synchronize the work order data to the regional end task management application in real time through the interface. Once the data is adjusted, it will also be updated synchronously;

[0191] Support creating work orders or parent-child work orders after planning tasks from the operation management center task management and trigger the work order approval process.

[0192] Configure the default filtering result set at the group company level to facilitate group company users to query work orders within their regions.

[0193] (Four) Work Permit

[0194] Streamline the list display fields, configure the existing list fields into the advanced query page, and at the same time, a time period query function for each time field needs to be added.

[0195] Configure the default filtering result set at the group company level to facilitate regional company users to query work permits within their regions.

[0196] Add a process for detaining work permits during the trial operation period.

[0197] (Five) Technical Supervision Plan

[0198] The current technical supervision plan is entered on the same day and work orders are generated the next day. It needs to be adjusted to the PM standard work, and the generation cycle and frequency can be customized.

[0199] Support the approval process for adding and deleting technical supervision plans.

[0200] Closing requires manual filling in of the implementation status.

[0201] Statistical reports need to be filtered according to the current organizational structure.

[0202] (6) Fault code application

[0203] New fault code applications support addition and modification.

[0204] Support process approval.

[0205] The newly added fault codes after approval are automatically maintained in the fault tree application.

[0206] Configure the default filtering result set at the group company level to facilitate users in regional companies to query work orders within their regions.

[0207] The fault codes modified after approval automatically adjust the corresponding data in the fault tree.

[0208] (7) Equipment construction application

[0209] Provide a process approval function to approve the construction matters of important equipment maintenance, technical transformation, major defect handling, and test projects at the station. It is mainly used for the process approval of construction matter applications for important equipment maintenance, technical transformation, major defect handling, and test projects at the station. The collection station initiates a project construction application through the entrance, and relevant work can only be carried out after approval.

[0210] Among them, equipment management provides basic data such as equipment location and assets for equipment maintenance and repair, and at the same time provides equipment basic data for each subsystem of the equipment management system. It includes wind farm equipment information, photovoltaic power generation area equipment information, energy storage equipment information, synchronous condenser information, collection station equipment information, etc. Specifically:

[0211] (1) Wind farm equipment information

[0212] The basic information of the wind farm includes: wind farm number, name, construction time, construction unit, wind turbine manufacturer, number of wind turbines, box transformer manufacturer, number of box transformers, equipment technical specifications, details of auxiliary equipment, equipment rating records, spare parts and reserves, daily maintenance, equipment inspection records (equipment inspection records mainly include factory tests, handover tests, and preventive tests), etc.

[0213] The operation management center can synchronize the above information into the design equipment management system.

[0214] (2) Equipment Information of Photovoltaic Power Plant Area

[0215] The equipment information of the photovoltaic power plant area includes: photovoltaic power plant area number, name, construction time, construction unit, photovoltaic inverter manufacturer, number of inverters, number of box-type transformers, equipment technical specifications, list of auxiliary equipment, equipment rating records, spare parts and reserves, daily maintenance, equipment inspection records (equipment inspection records mainly include factory tests, handover tests, preventive tests), etc.

[0216] The operation management center can synchronize the above information to the designed equipment management system.

[0217] (3) Energy Storage Equipment Information

[0218] The energy storage equipment information includes: energy storage power plant area number, name, construction time, construction unit, battery manufacturer, battery capacity and quantity, PCS manufacturer, PCS capacity and quantity, transformer manufacturer, transformer capacity and quantity, equipment technical specifications, list of auxiliary equipment, equipment rating records, spare parts and reserves, daily maintenance, equipment inspection records (equipment inspection records mainly include factory tests, handover tests, preventive tests), etc.

[0219] The operation management center can synchronize the above information to the designed equipment management system.

[0220] (4) Synchronous Condenser Information

[0221] The synchronous condenser information includes: synchronous condenser collection station, construction time of synchronous condenser, construction unit, main engine manufacturer, configured capacity, auxiliary equipment manufacturer and quantity, equipment technical specifications, list of auxiliary equipment, equipment rating records, spare parts and reserves, daily maintenance, equipment inspection records (equipment inspection records mainly include factory tests, handover tests, preventive tests), etc. The operation management center can synchronize the above information to the designed equipment management system.

[0222] (5) Equipment Information of Collection Station

[0223] The primary equipment ledger of the collection station includes: collection station name, 220kV GIS equipment manufacturer and configured intervals, reactive power compensation device manufacturer and configured quantity, 35kV gas-insulated switchgear manufacturer and configured quantity, equipment technical specifications, list of auxiliary equipment, equipment rating records, spare parts and reserves, daily maintenance, equipment inspection records (equipment inspection records mainly include factory tests, handover tests, preventive tests), etc.

[0224] The secondary equipment inventory in the collection station includes: AGC / AVC system, power prediction system, computer monitoring system, protection device, fault recorder, power quality monitoring, electricity metering and other equipment manufacturers, configuration status and equipment technical specifications, auxiliary equipment details, equipment rating records, spare parts and reserves, daily maintenance, equipment inspection records (equipment inspection records mainly include factory tests, handover tests, preventive tests), etc.

[0225] The operation management center can synchronize the above information to the design equipment management system.

[0226] (VI) Equipment accounting business

[0227] All the above equipment ledger information supports equipment ledger indicator display, query, and editing functions. The main indicators include various types of power loss, various types of downtime, number of failures, number of warnings, number of defects, etc., and support the display of the maintenance process of indicator-related components or systems in the form of a list. Business content includes:

[0228] Maintain basic information of all equipment ledgers;

[0229] Associated display of defect records, fault records, work order records, two-ticket records, inspection records, parts replacement information, equipment ratings, test data and other information;

[0230] The standard work ticket or operation card information of the equipment can be associated, so that the work ticket or operation card information can be automatically brought out when issuing invoices;

[0231] You can view various types of power loss, various types of downtime, number of failures, number of warnings, number of defects and other indicator data on the interface;

[0232] It can maintain the life of equipment, calculate the end of life, and provide alarms.

[0233] 4. Management Information System

[0234] The management information system provides statistical analysis and power trading support for new energy operations. Its specific functions include:

[0235] (1) Statistical analysis module: covers functions such as indicator analysis, intelligent reporting, and data maintenance management. The indicators include eight categories of indicators: basic, power, reliability, management, operation, resources, energy efficiency, and grid-connected management assessment indicators. The report template management function is a unified management of report templates, which are displayed in a list format. Data reporting supports users to report information such as the monthly planned power generation and grid-connected electricity price of the station, and supports data import; once the data is entered and confirmed, any changes require the data change process.

[0236] (2) Power trading module: It supports data management, pre - event analysis, in - event decision - making support, and trading review analysis for power trading. The data management function covers data automated scraping tools, private data import, public data import, basic information configuration of power stations, viewing of public data, viewing of private data, comprehensive data reports, etc. The pre - event analysis of trading provides functions such as market quotation dashboard, market quotation comparison, and disclosure information comparison. The in - event decision - making support for trading includes functions such as nodal price analysis, overview of medium - and long - term positions, medium - and long - term contract management, and support for spot trading. The trading review analysis covers functions such as pre - settlement revenue review, settlement statement revenue review, and review reports.

[0237] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent process transformation made using the specification of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A new energy intelligent operation system, characterized in that: include: Real-time monitoring system for power forecasting and analysis of aggregation stations, equipment alarm and early warning management, and energy efficiency analysis of station equipment; Logical control system to realize remote centralized monitoring of wind turbines and photovoltaic inverters and remote active power regulation based on AGC / AVC; Equipment management system, covering maintenance management of new energy equipment and basic equipment data management; Management information system that provides statistical analysis and power trading support for new energy operations.

2. The new energy intelligent operation system according to claim 1, characterized in that: The real-time monitoring system comprises: The power prediction module provides short-term, ultra-short-term and medium- and long-term power generation prediction results for new energy stations; The early warning alarm module realizes early detection and alarm of abnormal equipment operation status and hidden dangers by building an early warning model; The energy efficiency evaluation module generates basic statistical reports, customized reports, and performs indicator analysis and power curve analysis.

3. The new energy intelligent operation system according to claim 1, characterized in that: The logic control system comprises: Operation mode module, supporting remote control operation of wind turbines and photovoltaic inverters; Five-protection locking module provides five-protection functions for electrical equipment of the collection station and centralized control of five-protection functions for the operation management center; The power regulation module realizes the coordinated regulation of wind, solar and energy storage based on AGC / AVC.

4. The new energy intelligent operation system according to claim 1, characterized in that: The equipment management system comprises: Maintenance management module, involving defect management, fault management, and work order management; Health assessment module: Health assessment provides equipment health index and status assessment by analyzing multi-dimensional data of equipment; The status monitoring module collects and analyzes equipment operation data in real time, enabling real-time understanding of equipment status and early warning of abnormalities.

5. The new energy intelligent operation system according to claim 1, characterized in that: The management information system comprises: Statistical analysis module, covering indicator analysis, intelligent reporting, and data maintenance management; The power trading module supports data management, pre-analysis, in-process decision support and transaction review analysis of power trading.

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