科研之友
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摘要
In order to cope with the pressure of increasing penetration of wind power on peak load regulation of power system? the thermal units involved often undergo frequent startup and shutdown? which reduces the economic and operational efficiency of the system. The flexible regulation of electrochemical energy storage and the rapid response capacity of flexible loads can improve the flexibility of the system and effectively suppress the impact of wind power fluctuations. Given the influence of charging and discharging behavior on the life of energy storage batteries and the response characteristics of different flexible loads? a coordinated scheduling model of multi-type power sources considering demand response and energy storage life constraints was established. An example simulation in regional power grid shows that implementing demand response and introducing energy storage batteries into the coordinated scheduling of power grid in multi-type power sources system can effectively reduce the difference between peak load and valley load? improve the wind power consumption rate? reduce the cost of startup and shutdown of the thermal power unit and fuel cost? thus improving the economical operation of the system. Working out a dispatching plan considering the depreciation cost of energy storage batteries is conducive to extending the battery service life. ? 2021 Editorial Department of Zhejiang Electric Power.
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