1、 Domestic and foreign power grid peak shaving of the comparison of the auxiliary service mechanism and thinking:the significance of Gansu province DONG KAISONG1，WEI BO1，ZHOU DONG2，YIN YIPING2 1 State Grid Gansu Electric Power Company Electric Power Research Institute,Gansu Lanzhou 2 College of Econo
2、mics and Management,North China Electric Power University Abstract In recent years,more energy to participate in power grid peak shaving tendency in Gansu province is increasingly obvious,clean energy development is swift and violent,the power structure,space truss structure has greatly changed,the
3、system scale continues to expand,the ancillary services on peak mechanism is also put forward more requirements.The current domestic existing auxiliary service market transaction cost compensation and pricing mechanism is not perfect and the problem such as peak shaving of incentive mechanism is not
4、 sound.For further implement all measures to electric power system reform,the reduction of electric power commodity attribute,build effective competition market structure and market system,optimize the allocation of resources in a larger scope,need to further improve and deepen the power auxiliary s
5、ervice compensation mechanism(market).Because national electricity market model is different,it is difficult to establish a universal reingistic algorithm of auxiliary services,countries will according to your own experience and the structure of the power market,determine your pricing strategy,accor
6、ding to the actual situation,formulate suitable service mechanism of peak-load regulation.In this article,through analysis of the United States,the Nordic countries,countries such as Britain and Australia,the auxiliary service content,trading mechanism,compensation pricing method,etc.,and extract it
7、s can be reference for the reform of Gansu power grid peak shaving,the macro view,the government strengthen macro management,enterprises improve their strength,and the public to actively participate in,and objectively look at foreign successful cases,under the condition of region in Gansu province t
8、o explore the stronger mechanism was improved.Through microscopic research,this paper puts forward the following Suggestions,such as unified electricity market,safeguard fair competition in the electric power,at the same time offers a clear signal of investment and construction,moment hold national
9、policy vane,establish special auxiliary services policy research This work was supported in part by Global energy Internet scenario of multiple energy to participate in the depth of the power grid peak shaving technology(project number:SGGSKY00DYJS1700582)DONG Kaisong is with Electric Power Research
10、 Institute,Gansu,China.Email:.Wei Bo is with Electric Power Research Institute,Gansu,China.Email:.institute;Formulating appropriate region in Gansu power grid peak shaving the cost of ancillary services,cost analysis and strategy for accurate;Update the market main body concept,strengthen market the
11、ory study,improve the efficiency of market mechanism;Ability and quality of relevant personnel to ascend,promoting education and training;Especially the area of Gansu province ancillary services to perfect the compensation mechanism,this is one of the important link,etc.All of these in northwest Gan
12、su province,we will improve the mechanism of peak shaving auxiliary services put forward constructive advice,as well as our country comprehensively deepen peak shaving auxiliary services provide reference and inspiration.Index Terms Auxiliary service market;Load of the paid service;Load pricing;Trad
13、ing mechanism I.INTRODUCTION n recent years,our country electric power industry especially the fast development of clean energy,the power structure,space truss structure has greatly changed,the system scale continues to expand,significantly increased complexity of system operation and management,put
14、s forward higher requirements on the system safety and stable operation.At present,Chinas overall surplus power supply,coal unit using hours have been gradually declining trend,regional abandon wind,discard,abandoned water,limited nuclear and system load,problems such as contradictions between elect
15、ric heating season,part of current compensation method of power auxiliary services have been difficult to adapt to the actual needs.For further implement all measures to electric power system reform,further reducing power commodity attribute,build effective competition market structure and market sy
16、stem,optimize the allocation of resources in a larger scope,need to further improve and deepen the power auxiliary service compensation mechanism(market).In order to ensure the security of power system,a stable,high quality,economic operation,ensure the quality of electric energy,standard management
17、 of power auxiliary service,the original issued by the state electricity regulatory commission on November I 2018 China International Conference on Electricity Distribution Tianjin,17-19 Sep.2018CICED2018 Paper No.201804260000082 Page1/6 14182006,grid power plant auxiliary services management interi
18、m measures(electric monitor market 2006 no.43)(hereinafter referred to as no.43).Requirement according to the measures,the regional power regulator combining the reality of regional power system and electricity market construction needs,formulate detailed rules for the implementation in succession,o
19、rganize the implementation and strengthen supervision.In 2014,the national energy administration issued by the about promoting cross-regional inter-district power auxiliary service compensation mechanism construction work notice(countries heald 2014 2014)regulation,incorporate the inter-district tra
20、de across the province electricity power auxiliary service compensation mechanism.At present,the compensation mechanism of power auxiliary services except Tibet has yet to establish a nationwide basic construction,operation effect is generally good,which laid a foundation for further promoting the c
21、onstruction of electric power market.Because national electricity market model is different,it is difficult to establish a universal reingistic algorithm of auxiliary services,countries will according to your own experience and the structure of the power market,determine your pricing strategy,accord
22、ing to the actual situation,formulate suitable service mechanism of peak-load regulation.This article will through the contrast analysis at home and abroad to the content of the auxiliary service mechanism,trading mechanism,compensation pricing method,etc.,summarizes the method which the appropriate
23、 areas of Gansu auxiliary service mechanism,for the perfection of the Gansu power grid peak shaving auxiliary service mechanism to provide reference.II.AUXILIARY SERVICE MECHANISM CONCEPTS AND CLASSIFICATION A.Domestic auxiliary service concept and the classification Power auxiliary service is an im
24、portant part of the electricity market operation,is the assurance of safe operation of power system.With the deepening of electric power system reform and mature market environment,the power industry should be according to the actual market demand,in accordance with the medium to long term trading a
25、nd spot trading as supplement principle,actively explore to build power auxiliary service market.Its decision factors as follows:electric power systems coordination way;The power structure;The grid structure;Management mode;Standard;Measurement and monitoring system.About the classification of the a
26、uxiliary service mechanism,ancillary services required by different power industry structure is not the same,in combination with the actual situation of our country electric power system safe operation,the auxiliary services mainly include five kinds,namely,FM,peak shaving,standby,reactive power sup
27、port,black start.1)FM services also calls the frequency control,refers to the adjustment capacity of generating sets to provide enough,adjusting speed,real-time processing under the allowed to adjust deviation smaller load and power do not match,services to meet the requirements of the system freque
28、ncy.(2)The load is in order to adapt to the requirement of peak valley load changes and in a planned way,according to certain regulation speed adjustment of generator.In the grid,recognized peak shaving for pumped storage unit,fuel and gas turbine units,for part of the capacity of the adjustable hyd
29、ropower unit again,again for small capacity coal-fired units.(3)The standby is in addition to meet the demand of the maximum load power system,in order to ensure the safe and stable operation of power quality and system and maintain active power reserves.Backup has a detailed classification.Accordin
30、g to the purpose of the alternate load standby,emergency backup,maintenance spare and national economy;According to the standby operation state is divided into hot backup and cold backup;According to the response speed of the standby can be divided into the instantaneous corresponding standby,10 min
31、utes,10 minutes non-rotating standby for spinning reserve,spare 30 minutes,60 minutes extra,cold standby;Handled as standby increase or decrease the adjustment direction of divided into standby and standby.(4)Reactive power support.Generator or other reactive power sources in the grid inject or abso
32、rb reactive power into the system,in order to maintain the node voltage in the grid in the allowed range,as well as in electric power system fault after adequate reactive power support in order to prevent the system voltage collapse.Early electric power market,power grid reactive power service provi
33、ded,can be included in the transmission and distribution services,generator set(including phase modulation unit)only provide reactive power service need to be considered separately.5 black start refers to the entire system after shutdown because of malfunction,do not rely on other online help,since
34、the launch of by starting system has the ability of the unit to drive since the launch of the unit capacity,gradually expand the system restore scope,finally realizes the recovery of the whole system.B.Foreign auxiliary service concept and the classification The ancillary services market operation T
35、he ISO grid,New York,in charge of the whole power system(generation and transmission)safe and 2018 China International Conference on Electricity Distribution Tianjin,17-19 Sep.2018CICED2018 Paper No.201804260000082 Page2/6 1419reliable operation,and is responsible for organizing and managing electri
36、city wholesale market.Included in the power supply capacity and reliability of market power transmission congestion contract and unit capacity.Unit capacity rights contract providers must be involved in the electricity market before,to prove its usability of the unit.Voltage support services by ISO
37、separate arrangement,the split between the cost of all the users,there is a separate price.In addition,the formation of the four kinds of reserve capacity market,frequency regulation,10 minutes spinning reserve,asynchronous spare ten minutes and 30 minutes to spare.In the above four spare resources,
38、fastest frequency adjust resource scheduling command response to the ISO,30 minutes to spare resources response the slowest.Electricity generators to power market bidding,bid not only its every hour generated output,but also the bid of the unit start-up costs and the shortest running time,is still b
39、y ISO in accordance with the principle of to minimize the cost of the system to determine the combination of generating units,as a whole is according to all the bidders bid value for optimization calculation(minimum objective function for the total cost of the system)unit to determine the optimal co
40、mbination,and determine the market price.The United States is the core of the reform of electricity market deregulation,introducing competition,improve efficiency,lower electricity prices.California electricity market the failure of the reform and the smooth operation of electricity market,from a di
41、fferent Angle to the electric power market reform in our country to lesson.In the process of deregulation in California,the power is equal to general goods,neglect the particularity of electric power commodity,not formulate reasonable trade and price mechanism,the power suppliers use market privileg
42、es earn excess profit.Another market operators did not consider long-term development goals,in the case of a power supply,the crisis of blackouts in California and electricity prices soaring.These are we in the process of electric power market transaction mode in our country,the problems needing att
43、ention.Electric power market is the classic example of success of operation,resource is rich,the power structure is more reasonable,the objective conditions for the development of the electricity market also provide a good foundation.Gansu regional energy is abundant,grid space truss structure is go
44、od,can further development.The Nordic countries To meet the power balance between supply and demand,improve the efficiency of the power industry,reduce the end user electricity price differences between regions,the Nordic countries are actively exploring new electricity market operation mode.The Nor
45、dic electricity market was built in January 1993,is currently the worlds only a power between multinational trading of electricity market.The body of the electric power market is Norway,Sweden,Denmark,Finland,in terms of electricity trade,at the same time with Russia,Poland,Germany,etc have cross-re
46、gional energy trading 2.Organizers of the Nordic shikoku electric power market including the Nordic electric power exchange,Finland,Sweden,Norway,power grid companies grid company power grid companies and grid companies from Denmark.Norways power-generation hydropower Sweden and Finland are all comp
47、osed of hydro,nuclear and coal power plant in Denmark is all thermal power.Thus it can be seen that the Nordic countries have great complementarity in the electric power construction.This makes the international power transactions between these four very frequently.Nordic shikoku electric power mark
48、et operation mode is very unique,and its characteristics can be summarized as countries not to build their own power exchange,all futures trading and spot trading is done in the Nordic power exchange,northern Europe established a unified multinational in electricity market.Nordic shikoku electric po
49、wer trade in futures trading and spot trading and real-time transactions were completed by different institutions.Futures trading and spot trading in the Nordic power exchange.National grid corporation is responsible for the organization real-time trading.In power generation side did not divide the
50、factory network,power companies can have plants at the same time,the network and the user,but the user can choose electric power company power supply.In this way,the electric power company competition will be very big.If the cost is very high,the cost of power supply to users will be very high,so wi
