CAJ | 학술논문

　　目前，我国现有大用户直接交易合同中的固定交易电价需要交易双方，尤其是签订较长期直接交易合同的交易双方，具有较强的价格风险承受能力，这在一定程度上阻碍了大用户与发电企业参与直接交易的积极性。充分考虑了煤价浮动和产品价格波动等因素对交易双方利润的影响，打破传统直接交易合同中固定电价的约束，基于敏感性分析理论，提出了交易双方等利润率变化率的概念，并在此基础上建立了大用户直接交易合同电价模型，合同中交易执行电价在合同签订电价基础上根据交易双方的利润率变化率进行调整，交易双方共同规避风险，在一定程度上促进了交易双方的积极性，完善了大用户直接交易电价理论。通过算例验证了基于等利润率变化率建立的大用户直接交易合同电价模型的正确性和有效性，表明该模型能降低交易双方的价格风险。
　　목전，아국현유대용호직접교역합동중적고정교역전개수요교역쌍방，우기시첨정교장기직접교역합동적교역쌍방，구유교강적개격풍험승수능력，저재일정정도상조애료대용호여발전기업삼여직접교역적적겁성。충분고필료매개부동화산품개격파동등인소대교역쌍방리윤적영향，타파전통직접교역합동중고정전개적약속，기우민감성분석이론，제출료교역쌍방등리윤솔변화솔적개념，병재차기출상건립료대용호직접교역합동전개모형，합동중교역집행전개재합동첨정전개기출상근거교역쌍방적리윤솔변화솔진행조정，교역쌍방공동규피풍험，재일정정도상촉진료교역쌍방적적겁성，완선료대용호직접교역전개이론。통과산례험증료기우등리윤솔변화솔건립적대용호직접교역합동전개모형적정학성화유효성，표명해모형능강저교역쌍방적개격풍험。
At present, the fixed electricity tariffs in existing direct transaction contracts for large power consumers needs both sides of the transaction, especially the both sides who sign a direct transaction contract for a longer-term, possessing stronger price risk tolerance, and to a certain extent it impairs the enthusiasm of large power consumers and power generation enterprises to participate in direct transaction. Fully taking the impact of fluctuations of coal price and product prices on profits of both sides of the transaction into account and breaking the constraint of fixed electricity tariffs in direct transaction contract for traditional direct transaction, based on sensitivity analysis a concept of equivalent change rate of profit margin is put forward and on this basis an electricity price model of direct transaction contract for large consumers is established. In this model, based on the signed price the executive price is adjusted according to change rates of the profit margins of both sides of the transaction, so both sides of the transaction can evade the risk together and the enthusiasm of them to participate in direct transaction can be promoted a certain extent, thus the theory of the direct transaction for large consumers is perfected. The correctness and effectiveness of the proposed electricity price model of direct transaction contract for large power consumers are verified by numerical example and calculation results show that using the established model the price risk of both sides of the transaction can be reduced.