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  The 6th China's Wind Power Operation and Maintenance
  Services Industry Forum

On November 24, 2015, the "6th China's Wind Power Operation and Maintenance Services Industry Forum" sponsored by TN (Shanghai Tanon) was solemnly held at Grand Millennium Beijing! The Forum was strongly supported by domestic major wind power operators including Longyuan Power, CR Power, Guohua Power, Jingneng Power, Suntien New Energy, Huaneng Group, Jinneng Group, China Wind Power, Huayuan Power and Honiton Energy, etc., domestic major wind turbine manufacturers including United Power and Goldwind, component suppliers for wind turbine units as well as third-party service providers. LAMBRECHT, SSB, ESK and STAUFF attended the entire forum as the co-organizers. During the Forum, all the representatives had in-depth discussions on the topic of "focusing on spare parts for wind turbine units, jointly building a platform-based ecosphere", thus having reached a broad consensus and cooperation intent to build an open information platform for spare parts of wind turbine units and form strategic alliance regarding information docking among all parties.

First of all, Mr. Wan Hui, GM of TN, introduced the development process and achievements made by the China's Wind Power Operation and Maintenance Services Industry Forum. Then, all the participants had roundtable discussions face to face on the topic of the Forum:

I. Supply and demand of spare parts for wind turbine units:
1. The traditional supply chain is too long; high in costs, long in lead-time, poor in service and extremely dependent on wind turbine manufacturers

2. The traditional procurement mode is restricted by the policy; it cannot effectively meet the actual production demand of wind farms.

3. The traditional supply channels are quite complicated and unordered; counterfeit, imitated, reprocessed, blindly substituted and smuggled spare parts have exerted a serious impact on safety in production in terms of wind farms.

The traditional supply mode indicates spare parts cannot meet the speed required for wind farm production and cannot ensure product quality. Such a case results in great hidden perils and higher prices regarding safety in production. Therefore, the contradiction between the ever-increasing operation & maintenance costs and the overall trend that the State lowers the grid purchase price becomes more and more prominent, which severely impacts and restricts the rapid and robust development of the wind power operation and maintenance industry.

1. It shall shorten the supply chain, realize direct docking between manufacturers and wind power users, effectively avoiding the great risk caused by product quality and supply chains while reducing the costs;

2. It shall build a platform-based ecosphere, form information-sharing strategic alliances deeply participated by all parties.

II. Construction of the platform-based ecosphere of spare parts for wind turbine units:

Greatly affected by Internet+, practioners may naturally combine wind power and Internet. With a view to spare parts for the aftermarket of wind power, what can an "Internet platform for spare parts" (hereinafter referred to as the “platform”) bring to us?

The first thing is to disseminate information in an accurate, rapid and unrestrained manner. In a traditional mode, it is quite difficult to disseminate a manufacturer's product information to final users. The reasons include channel protection by OEMs and failure to dock between suppliers and buyers. As a matter of fact, final users always obtain secondary data and such information is filtered and "incomplete". In this case, it is quite time-consuming and costly for final users to handle actual business based on the information. However, the platform can easily break the channel restraints, realize free dissemination on web scale, which greatly outperforms the traditional mode.

In the meantime, the platform can make it possible to quickly dock high quality resources. It can easily break the geographical space limitations, effectively shorten the period of looking for and identifying resources, thus realizing low-cost docking that is quick and effective.

Channel control of products, that is, "traceability" is a major problem to be urgently solved for the aftermarket of wind power. However, in a traditional mode, the control method is quite in vain, unable to realize effective whole-process control. The platform can solve this problem in a sound manner. It can record each segment fully and understand the progress at any time. The mobile technology can make it possible for practioners to understand and monitor the dynamic state at all times. Such a capability has been verified via other platforms!

In a traditional mode, striking problems exist in terms of spare parts inventory, for example, random inventory, repeated inventory and inactive inventory, etc. The reason is that a problem exists in data analysis. However, data analysis is one of the advantages of the platform. Based on reliable and big data analysis, it is possible to prepare the inventory accurately.

According to the above comparison, the platform can create "values"! These "values" are impossible in case of a traditional mode. Therefore, the platform is destined to gain market recognition one day in the future.

The platform has so many advantages, then can it solve all the problems? The answer is No. The future pattern is that, the platform will give full play to its own advantages in information dissemination, resource docking, traceability, data analysis and so forth, with its marginal area linked up and supplemented still by the traditional mode. The greater the role of the platform is, the higher the industrial efficiency is and the lower the costs are!

Consensus by all parties:

Disclosure and sharing of information on spare parts for wind turbine units will become a trend. The platform can realize an emergency response to questions such as where the spare parts are and how much they are. It can provide a relatively accurate demand forecast to realize optimized production and inventory, reduce fund precipitation of spare parts, realize selection at a time for repeated application, fully highlighting its feature to make the marginal costs of Internet close to zero.

The spare parts supply and the universalized component substitution of wind turbine units shall be of a technique content, rather than a bloody market imposing competition of price and labor force.


III. Discussion on anemorumbometer application:

LAMBRECHT had a discussion with the participants on the influence of wind speed and wind direction measurement on generated energy. Besides, it put forward a solution for problems in domestic anemorumbometer application.

1. A mechanical anemorumbometer is high in failure rate in case of adverse circumstances including cold weather, sandstorm and ice rain, etc.;

2. Wind turbine manufacturers have adopted various standards in early phase, which results in confusing anemorumbometer models in the market;

1. It shall adopt a Lambrecht anti-freezing anemorumbometer to replace the original product in areas with cold weather and ice rain, etc., for sound improvement;


2. It shall adopt a ultrasonic anemometer to replace a mechanical anemorumbometer in case of adverse circumstances including coast, desert and paramos, etc., for higher measuring accuracy and longer service life;
3. It shall gradually unify the standards adopted by all wind turbine manufacturers, standardize interfaces for signal transmission and mechanical installation, reduce barriers of all branded products and enhance substitutability;
4. It shall provide a redundant anemorumbometer for standby and measurement reference.


IV. Backup power management of electric pitch system:
As the founder of the electric pitch control system, SSB (Germany) has devoted itself to explore innovation and new technology. The backup power for electric pitch system is a major subject that it has researched for many years. By making a case analysis on battery application in each area of China, SSB learns that customers fail to understand the real-time capacity of a storage battery, therefore, wind turbines may operate at an unknown high risk, which means a great hidden peril of collapse. However, it may waste resources when regularly replacing the storage battery. With a view to short service life common for battery, SSB has made an objective analysis on five factors affecting the service life of battery, namely, temperature, charging & discharging, storage, replacement of used battery and vibration environment. It has proposed a solution to extend the service life of battery, by selecting a special battery plus a SSB-customized anti-vibration battery rack, adopting an intelligent battery charger as well as semiconductor refrigeration ensuring the operating ambient temperature of the battery.

A detailed description is also given to the module (BPMM NG) monitoring the battery capacity online in real time, which has been concerned and recognized by customers.

V. Introduction to auxiliary filter for wind turbine gearbox:
As a supplier of hydraulic elements, STAUFF briefly introduced such products as environmental-friendly dehumidification air filter SD, liquid level meter and auxiliary offline filter OLS, etc., in view of the core elements for the wind turbine gearbox lubrication system and the hydraulic system. In the meantime, it also give a detailed description of the customized equipment SCMC monitoring lubricant and hydraulic oil during daily operation and maintenance of wind power in real time, for example, the device can eliminate the impact on testing accuracy resulted from air bubbles produced during gearbox operation. It can realize pressurized operation in real time, which is convenient to connect with the existing lubrication system. The transfer protocol conforms to MODBUS and CANBUS protocols, with analog quantity output. Therefore, it can easily access to the operating system of a customer's wind turbine or realize wireless monitoring.
With a view to the existing wind power market, two-stage primary-secondary cartridges are varied in quality and difficult to identify. Face to face communication and exchanges about filtration performance (βx value), contamination capacity (DHC), production inspection & control and other segments of the patented STAUFF 4PRO cartridge were made, to make users better understand the basic parameters and indicators of the cartridge and resist shoddy goods.


VI. Wind power operation and maintenance requires an advanced integrated materials management mode for the supply chain:
As a company specialized in supply chain management, Elektroskandia (Shanghai) Co., Ltd. gave a detailed introduction to its professional AVL management mode (Approved Vendor List). The mode can achieve the goal of low costs and high transaction volumes by means of customized and centralized package delivery, perfect product portfolio, reliable supply chain management, quality management meeting customer demands as well as professional global inquiry and procurement teams. Its novel and specialized management mode aroused great interest of the customers present. With a view to the wind power operation and maintenance market, Elektroskandia prefers to cooperate with an experienced operation and maintenance company, in order to achieve complementary advantages and win-win cooperation.





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