Abstract
Considering sharp increase of central integration scale of intermittent energy generation, power system couldn’t rely on the determined model based operation schedule to assure its reliable load supply. Then, this article presents a new load supply adequacy evaluation method, which based on continuous security constrained generation optimization, and provides the functional architecture design of online multi-level short term load supply adequacy evaluation system.
Highlights
It is the main objective of short term operation schedule to secure power system operation, improve load supply reliability and optimize generation resource configuration
Continuous security constrained generation optimization module provides multi-objective, security constrained unit commitment and economic dispatch service, provides single period and multi-periods coupled load supply adequacy evaluation service and calling of base case power flow analysis, contingency analysis and sensitivity calculation service provided by security analysis module automatically
This article presents multi-level, including bus level, zone level and system level, load supply adequacy evaluation method, which is able to evaluate load supply adequacy of transmission network at any operation status and provide reliable technical support for coping with random fluctuation caused by intermittent energy generation
Summary
It is the main objective of short term operation schedule to secure power system operation, improve load supply reliability and optimize generation resource configuration. It is important to arrange enough margins in outage schedule optimization to meet additional reserve requirement caused by intermittent energy generation It is of great value for improving load supply reliability to accurately evaluate maximized load supply capability for transmission network. Paper [1] presented load supply adequacy index for bus, which is defined as the ratio of maximized load supply capability to current bus load, and applied in load supply capability evaluation of buses It is the main objective of outage schedule optimization and evaluation to arrange enough available generation capacity and transmission capacity for coming generation optimization in order to cope with fluctuation of load. This article applies load supply adequacy index in multi-level evaluation of load supply capability on every bus according to outage schedule. Based on multi-level load supply adequacy evaluation, the online short term load supply adequacy evaluation system is designed and implemented
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