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8 输电监管在电力市场环境下,仍然需要对输电系统进行监管,因为其仍具有自然垄断特征,且要为实现公平竞争提供必要的场所。输电监管的一个主要目标就是要促使输电系统在满足给定的可靠性要求的同时使经济成本最低或经济效益最高,例如使系统以最小的总成本向用户供电。具体来讲,对基于管制的输电投资与扩展规划进行监管的主要目的是降低未来不能有效利用输电设备的风险,而对基于市场驱动的输电投资与扩展规划进行监管的主要目的是遏制有损整体社会福利的输电投资。
8 Transmission Regulation In the electricity market environment, the transmission system still needs to be regulated because it still has the characteristics of natural monopoly and provides the necessary venue for achieving fair competition. One of the main goals of transmission regulation is to make the transmission system the lowest economic cost or the highest economic benefit while meeting the given reliability requirements, for example, to power the system to the user with minimal total cost. Specifically, the main purpose of regulation-based transmission investment and expansion planning is to reduce the risk of not being able to effectively use transmission equipment in the future. The main purpose of regulation on market-driven transmission investment and expansion planning is to curb the loss of the whole Social Welfare Transmission Investment.