Abstract: In this paper, the potential negative effects in the development of microgrids in our country are analyzed and some countermeasures are also given to the problems in the current development of microgrids. The importance of defining microgrid standards and their connotations in China is further emphasized As well as the importance of technological innovation.
1 micro-grid content
Micro-grid, also known as micro-grid, is a new type of network structure, which is a set of system units composed of micro-power, load, energy storage system and control device. The concept of microgrid currently does not have a unified view, but in terms of the microgrid itself, is an autonomous system that can self-run, control and protection, both with the external grid and can operate in isolation, which is micro The basic connotation of grid concept.
2 Potential negative effects of microgrid development Â
Zhejiang Lucy Island micro-grid demonstration project investment of about yuan; Zhuhai Wanshan island new energy microgrid demonstration project a total investment of about yuan, "smart micro-grid integration of key technologies research and development and industrialization projects" access to Guangdong Science and Technology Hall research funding 6 million yuan, access to the National Energy Board in 2013 the central budget for investment in smart grid pilot project subsidies of about 30 million yuan. Such generous input on the demonstration project of the microgrid has been deviated from the intension of the microgrid itself. Of course, such investment in demonstration projects is not only to foster the market mechanism, but more consideration may be basic research in technology so that For our country in the micro-grid technology innovation and application play a role in research and demonstration. The development of China's micro-grid alone, there are indeed some problems.
From the development of China's micro-grid, the main factors that promote the development of China's micro-grid are policy support, market regulation, investment scale and technological innovation. In these aspects, active and effective policy support has played a key role in the development of China's micro-grid Role. US Department of Energy Secretary Richard Kaufman believes that the United States has lagged behind China and Europe in the clean energy market, mainly because the United States emphasis on basic research without a good market, China and Europe with the help of The U.S. engine of innovation has developed its own clean energy market. In fact, China's energy policy has played a supporting role. In terms of market regulation, the threshold of intervention in China's micro-grid appears to be very low, but the actual situation of the power regulation policy actually leads to the threshold of intervention in China's micro-grid is still relatively high.
2.1 The negative effects of energy policy guidance and supervision Â
(1) Market Monopoly and Abuse Lead to Lack of Market Competition Most of the power industries in the world dominate the vertical monopoly system. Since the 1990s, driven by many factors, the power of some major countries Industry started the operation of the market, Russia experienced a separation of large power transmission and distribution, and then the trend of convergence, from the history of the development of China's power grid, China's power grid is actually the integration of transmission and distribution of large power grid, from the current Situation, the trend of China's re-integration of power grid is not very clear, the electricity price reform has become the core stage of China's power grid in the recent stage. It has been reported that Liu Zhenya, general manager of SGCC, intends to develop the intercontinental power grid. In China's smart grid development plan, the backbone network of "strong smart grid" characterized by "long distance and large capacity" has basically taken shape. The focus of such centralized resources has played an important role in the lateral development. This monopoly and abuse of markets also have an indelible mark in the development of microgrids. Micro-grid demonstration project a lot of capital investment, not a single micro-grid as the focus of research, in essence, is distributed power-oriented research.
(2) blind investment in the market may lead to the original market was subverted Â
Currently on the micro-grid investment projects are growing, giving an illusion that the market is mature, investment in the construction project presents a fickle psychology, micro-grid good market prospects like "bald head lice - Obvious thing ", but what should be considered business, it seems that this" out of things "confused confused, overwhelmed. The blind investment in the market is slowly disrupting the market's competitive mechanism.
(3) blind pursuit of the market may lead to technology innovation engine flameout Â
China's technological innovation in the microgrid draws on the outstanding technologies and patents from all countries in the world, which is also reflected in the structure of the microgrid. According to the insiders, at present China's technological innovation in the microgrid is far below that of the EU. However, China's micro-grid investment is not slower than the EU, which is contrary to common sense. If we want to dominate the development direction of micro-grid, we must open the engine of technological innovation, science and technology are primary productive forces.
2.2 There are potential information security issues in the technical characteristics of microgrids Â
In the process of the development of smart grid, the microgrid will inevitably reflect the characteristics of the smart grid. Different from the state-led smart grid construction, there are not many practical applications of the current information security solutions in the microgrid, especially the grid-connected In the case of operation, the information security can not be guaranteed well. At the same time, the micro-grid under different technical standards and different communication protocols also restrict the micro-grid portability and grid interoperability.
3 micro-grid development process of the negative effects of the countermeasures Â
China has achieved some success in the development of micro-grid, but there are also the above negative effects. These negative effects actually exist at the beginning of the development of China's micro-grid. It is necessary to strengthen research on microgrid standards, research on technological innovation and investment.
(1) The formulation of microgrid standards is the urgent problem to be solved
The first is what kind of power grid can be regarded as a micro-grid, which should be a micro-grid standard research to be the first to solve the problem, how much power generation, what kind of framework, what kind of investment standards, if this problem If the solution is not good, the connotation in the concept of microgrid can not be tapped and the development of microgrid will deviate. It is difficult to seek development without a rational framework.
(2) Interested in micro-grid enterprises should be clear product positioning Â
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