电网技术
電網技術
전망기술
POWER SYSTEM TECHNOLOGY
2013年
5期
1317-1322
,共6页
上网电价%分时电价%浮动比例%长期边际成本定价
上網電價%分時電價%浮動比例%長期邊際成本定價
상망전개%분시전개%부동비례%장기변제성본정개
generation price%time-of-use price%float proportion%long-term marginal pricing theory
上网侧分时电价已在多个省份实施，现行的政策以“保持总体电价水平不变”为原则制定分时电价浮动比例，但由于供需形势和电源结构的不断变化，实际执行结果与设计方案差异较大，导致电网公司和发电企业的利益受到较大影响，部分省份暂停上网侧分时电价政策。此外，在实际操作层面，该原则也仅能给出分时电价浮动比例的比值关系，具体的浮动比例数值仍由政策制定者确定，存在一定的主观性。针对以上问题，以长期边际成本定价理论为基础，针对某省的实际情况，建立了分时电价浮动比例的计算模型，避免了浮动比例人为确定的不足。同时，设计了上网侧分时电价的调整机制，以动态调整方案取代现行的静态方案，发电公司和电网公司受分时电价政策的影响及时通过浮动比例联动方案和销售电价联动方案进行疏导，从而有利于分时电价政策的长久执行。
上網側分時電價已在多箇省份實施，現行的政策以“保持總體電價水平不變”為原則製定分時電價浮動比例，但由于供需形勢和電源結構的不斷變化，實際執行結果與設計方案差異較大，導緻電網公司和髮電企業的利益受到較大影響，部分省份暫停上網側分時電價政策。此外，在實際操作層麵，該原則也僅能給齣分時電價浮動比例的比值關繫，具體的浮動比例數值仍由政策製定者確定，存在一定的主觀性。針對以上問題，以長期邊際成本定價理論為基礎，針對某省的實際情況，建立瞭分時電價浮動比例的計算模型，避免瞭浮動比例人為確定的不足。同時，設計瞭上網側分時電價的調整機製，以動態調整方案取代現行的靜態方案，髮電公司和電網公司受分時電價政策的影響及時通過浮動比例聯動方案和銷售電價聯動方案進行疏導，從而有利于分時電價政策的長久執行。
상망측분시전개이재다개성빈실시，현행적정책이“보지총체전개수평불변”위원칙제정분시전개부동비례，단유우공수형세화전원결구적불단변화，실제집행결과여설계방안차이교대，도치전망공사화발전기업적이익수도교대영향，부분성빈잠정상망측분시전개정책。차외，재실제조작층면，해원칙야부능급출분시전개부동비례적비치관계，구체적부동비례수치잉유정책제정자학정，존재일정적주관성。침대이상문제，이장기변제성본정개이론위기출，침대모성적실제정황，건립료분시전개부동비례적계산모형，피면료부동비례인위학정적불족。동시，설계료상망측분시전개적조정궤제，이동태조정방안취대현행적정태방안，발전공사화전망공사수분시전개정책적영향급시통과부동비례련동방안화소수전개련동방안진행소도，종이유리우분시전개정책적장구집행。
In China, the time-of-use (TOU) electricity price at generating side has been implemented in multi provincial power grids, and according to current policy the floating proportion of TOU is drafted in the principle of keeping overall price level constant. However, in view of being continually changed power source structure and situation of power supply and demand, there is evident difference between actual implementation results and designed TOU schemes, and it leads to obvious affection on benefits of transmission network companies and power generation enterprises, so that the execution of the policy of TOU at generating side is stopped in part of provincial power grids. Besides, on actual operation level, above-mentioned principle can only give the relationship of the ratio in the floating proportion of TOU and the concrete value of floating proportion of TOU is still determined by the policymaker, thus there is a certain subjectivity. In allusion to this problem, in accordance with pricing theory based on long-term marginal cost and according to actual condition of a certain provincial power grid, a calculation model of floating proportion of TOU is established to prevent the defect due to artificially drafting the floating proportion. Meanwhile, an adjustment mechanism of TOU at generating side is designed, in which the existing static adjustment scheme is substituted by dynamical adjustment scheme to alleviate the affections of TOU policy on generating enterprises and transmission network companies by coordinated floating proportion scheme and coordinated selling price scheme. The designed adjustment mechanism of TOU at generating side is favorable to long-term execution of TOU policy.
