1. Jiangsu: "14th Five-Year Plan" wind power, photovoltaic new installed capacity of more than 30GW, focus on the development of offshore wind power

Recently, the Jiangsu Provincial Development and Reform Commission issued the "Notice on Doing a Good Job in the Construction of Wind Power and Photovoltaic Power Generation Projects in 2021." According to calculations, during the "14th Five-Year Plan" period, Jiangsu's wind power and photovoltaic power will accumulatively add more than 30.69 million kilowatts.

The "Notice" stated that during the "14th Five-Year Plan" period, Jiangsu Province will further optimize the structure of wind power and photovoltaic power generation, especially wind power, and focus on the development of offshore wind power and photovoltaic power. Especially in coastal areas, we must make every effort to promote the large-scale development of offshore wind power, and steadily carry out the demonstration construction of deep sea offshore wind power.

Source: Jiangsu Provincial Development and Reform Commission

2. The world's first anti-typhoon floating offshore wind turbine was successfully installed

On July 13, my country’s first floating offshore wind power platform invested and constructed by China Three Gorges New Energy (Group) Co., Ltd., equipped with the world’s first anti-typhoon-type floating offshore wind turbine, formed the "Three Gorges Pilot", which was set up in Guangdong The successful installation of the Yangjiang Shapa million-kilowatt offshore wind farm means that China's floating wind turbines and basic platforms with completely independent intellectual property rights have taken a step forward in the exploration of the acquisition of far-reaching wind energy resources.

This floating offshore wind turbine and platform is located in the South China Sea, with a stand-alone capacity of 5.5 MW. It is led by Three Gorges Energy and is independently developed by the Three Gorges Group Shanghai Survey, Design and Research Institute and other scientific research institutions through the "integration of production, education and research" mode, as well as domestic wind turbine manufacturers. , It is of positive significance to promote the upgrading of my country's offshore wind power high-end equipment manufacturing and tap the potential of far-reaching offshore wind energy resources.

Source: Three Gorges Micro

3. The world's first floating wind power startup model enters the test phase

Recently, the world's first floating wind power fusion cage aquaculture demonstration prototype test model developed by the National Energy Group Longyuan Power was officially launched at the State Key Laboratory of Ocean Engineering of Shanghai Jiaotong University, marking the official entry of the project into the model test stage.

This test uses a 1:40 scale model. The geometric scale error of the model does not exceed 1 mm, the weight center of gravity error does not exceed 3%, and the pitch and roll inertia radius error does not exceed 5%. The test process consists of two parts with net and no net in the pool test, a total of 154 working conditions. The test first calibrates the wave-making performance of the pool and the aerodynamic performance of the wind turbine, and conducts the static water attenuation test to test the natural period and damping coefficient of the wind fishing platform system, and then simulates the interaction between the harsh ocean environment and the physical model in the laboratory. Wind, wave, and current load tests under working conditions and survival conditions, test the motion response of the wind fishing platform system, engine room acceleration, blade tip air gap, tower load, mooring system load and other key performance parameters, and predict the prototype Response characteristics in actual sea conditions, and verify the accuracy of numerical calculations.

The project prototype is located at the Nanri Island Offshore Wind Farm in Putian, Fujian. It is planned to complete the demonstration project construction in 2022. It will be the world's first project that combines floating wind power and deep-water aquaculture. Fish three-dimensional with the effect of the sea. At present, the project has completed the conceptual design, preliminary design, wind turbine transformation and load iteration, and expert demonstration of the breeding system of the wind-fishing fusion platform. The results of the tank model test will be used in the next detailed design and production design work.

Source: Longyuan Power

4. National Energy Group applies dual-machine hot standby technology for the first time to fill the gap in the wind power industry

Recently, National Energy Group Longyuan Zhongneng successfully applied dual-machine hot-standby technology for wind farm power prediction in Jiangsu offshore wind farms. This is the first time in the wind power industry that dual-machine hot-standby technology has been successfully applied to offshore wind farm power prediction systems. Effectively improve the safe and reliable operation of wind farm grid-related systems and fill the gap in the industry.

The dual-machine hot backup technology realizes real-time data synchronization between the main and backup servers of the wind farm power prediction system without manual intervention. After the main machine fails, it automatically switches to the backup machine to report data, effectively reducing the large fines caused by the interruption of data reporting and scheduling. This measure greatly improves the reliability of the power prediction system, increases the stability of data storage, and reduces the resource consumption of a single server for multi-channel upload requirements.

Source: National Energy Group

5. my country's largest offshore wind farm with a total installed capacity of 700,000 kilowatts has been completed

Recently, in the Niujiaosha sea area of Rudong, Jiangsu 39 kilometers offshore, with the precise docking of the last wind turbine impeller with the hub of the nacelle, all 80 5MW wind turbines of the Huaneng Shengdong Rudong H3 offshore wind farm project have been installed. So far, the largest domestic Huaneng Rudong offshore wind farm project has been completed, with a total installed capacity of 700,000 kilowatts.

Huaneng Rudong Offshore Wind Farm Project is constructed in two phases, with a total investment of over 12 billion yuan. Among them, the first phase of Rudong Baxianjiao Offshore Wind Power Project is the first offshore wind farm of Huaneng Group, which was connected to the grid on September 30, 2017 at full capacity. The second phase of the Shengdong Rudong H3 offshore wind farm project has a total installed capacity of 400,000 kilowatts. It will be implemented in two bid sections. The construction will be undertaken by China Communications Third Navigation Engineering Co., Ltd. and China Railway Bridge Bureau Group Co., Ltd. At present, the main body of the project is fully comprehensive. Completed, it is planned to realize full-capacity production and operation before the end of July.

Source: Rudong release

6. The world's largest 13.XMW semi-direct drive permanent magnet wind turbine successfully rolled off the assembly line

Recently, the 13.XMW semi-direct-drive permanent magnet wind turbine with the world's largest power independently developed by CRRC Yongji Electric Co., Ltd. successfully rolled off the assembly line in Dongying, Shandong. It marks that my country’s independent research and development capabilities for high-power offshore wind turbines have been put on a new platform. It has achieved breakthroughs in key technologies for the complete machine and components of wind turbines above 13MW, and has promoted the technological improvement of my country’s wind power industry and the continued stability of the offshore wind power industry. Development is of milestone significance for further improving my country's offshore wind power equipment research and development capabilities.

Source: CRRC Yongji Electric

7. The first domestic 10MW semi-direct drive gearbox used in offshore wind power was successfully rolled off the assembly line

On July 13, China Shipbuilding Industry Corporation held a 10MW semi-direct drive gearbox off-line ceremony. The 10MW semi-direct drive gearbox adopts a two-stage NGW type planetary transmission high-reliability structure, and an integrated system of main shaft, gearbox and motor has been established. Model and conduct multi-body dynamics analysis, carry out gear box uniform load, micro-modification vibration and noise optimization, to achieve high reliability of the gear box. Through the system deformation compensation finite element analysis and actual measurement iterative optimization, the precise control of the large tapered bearing clearance is achieved; it has broken through the heat treatment deformation control technology of the super large gear module and diameter gear ring, and the large width gear ring has high efficiency and high precision tooth profile. Gear grinding control technology. At the same time, it has accumulated design, processing, assembly and testing experience for the research and development of ultra-large megawatt offshore wind power gearboxes, laying a solid foundation.

Source: Chongqing Gearbox Co., Ltd.

8. Successful SAT test of the first domestic large-megawatt full-angle offshore single-blade spreader

Recently, Juli Rigging provided the country's first large-megawatt full-angle offshore single-blade spreader for a well-known domestic wind power machine manufacturer. It successfully passed the SAT field test and will be sent to the sea for the largest offshore wind turbine blade installation operation in China. . At present, it is the key node of China's offshore wind power "rush to install". The advent of large-megawatt full-angle offshore single-blade spreaders will boost the construction and development of offshore wind power projects.

The large-megawatt full-angle offshore single-blade spreader can meet the maximum load-bearing capacity of a single blade of 50 tons. At the same time, the average wind speed of the original hoisting window is increased to 15m/s, and the maximum wind speed can reach 18m/s. This greatly expands the wind turbine hoisting window period and breaks through the wind speed boundary limit for offshore hoisting operations. It is another offshore wind power unit. The blade hoisting "weapon".

Source: Juli Rigging

9. Offshore wind power 10+MW "Big Mac" overcomes typhoon

Recently, Siemens Gamesa SG 11.0-200 DD offshore wind turbine obtained the Rotor Nacelle Assembly (RNA) IEC Type Certificate, which covers the ability to withstand extreme wind conditions. Siemens Gamesa is the world's first wind power complete machine manufacturer to obtain the second anti-typhoon IEC certification, which is particularly important for the Asia-Pacific region.

The certificate is issued by TüV NORD. Both SG 11.0-200 DD and the previous "Asia-Pacific customized version" SG 8.0-167 DD can withstand typhoons or t-level wind speeds. The blades of the 11MW offshore wind turbine are 97 meters long and the impeller diameter is 200 meters. The latter has an impeller diameter of 167 meters and a blade length of 81.4 meters.

Source: Siemens Gamesa

10. The first domestic offshore wind power DC gas insulated metal-enclosed switch was officially produced

Recently, under the witness of three authoritative testing institutions including Xi’an High Voltage Apparatus Research Institute, Wuhan Branch of China Electric Power Research Institute and Henan High Voltage Apparatus Research Institute, the ±200kV DC gas insulated metal enclosed switchgear developed by Pinggao Group (hereinafter referred to as : DC GIS switchgear) has passed the type test and three-month live assessment, verifying its reliability under long-term operating conditions, marking that the first domestic (set) of DC GIS switchgear that can be used for offshore wind power is complete Possess engineering application conditions.

Pinggao Group's DC GIS switchgear has the advantages of compact structure, maintenance-free, and good earthquake resistance. It is the development direction of offshore and onshore DC switchgear. It can be used for polar lines, neutral lines and converter valve sides. Location, which mainly includes isolation switches, grounding switches, voltage transformers, current transformers, lightning arresters, bushings, cable terminals and other components, which can be flexibly arranged according to the engineering topology.

Source: Pinggao Group

11. The world's longest EN156 polyurethane wind power blade's first mass-produced blade rolls off the production line

Recently, Time New Material's longest EN156 polyurethane wind turbine blade in the world officially started mass production at the Power Valley plant, and the first mass-produced blade has recently rolled off the line.

Times New Materials continues to coordinate with the raw material and equipment industry chain to iterate out polyurethane resins that are more suitable for wind turbine blades, and at the same time independently develop polyurethane vacuum online infusion equipment. The application of polyurethane, for wind power blades, can help its better sustainable development, and for the polyurethane industry, wind power has also become an application field containing new opportunities.

Source: Times New Materials