Thermal power generating unit primary frequency modulation system with energy storage device with controllable load

A technology for energy storage devices and thermal power units, applied in circuit devices, electrical components, AC network circuits, etc., can solve the problems that the improvement of assessment indicators cannot be quantified, affect assessment results and power plant revenue, and improve the quality of frequency modulation response , Improve the quality of primary frequency modulation response, and improve the effect of power supply economy

Pending Publication Date: 2020-09-29
XIAN THERMAL POWER RES INST CO LTD
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AI Technical Summary

Problems solved by technology

When the energy storage device participates in the primary frequency regulation of the thermal power unit, its improvement effect on the assessment indicators cannot be quantified and then fed back to the dispatching agency, which affects the assessment results and the power plant's revenue

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  • Thermal power generating unit primary frequency modulation system with energy storage device with controllable load

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Embodiment Construction

[0023] The technical solutions of the present invention will be further described in detail below through the accompanying drawings and embodiments.

[0024] like figure 1 As shown, an energy storage device with a controllable load participating in the primary frequency regulation system of a thermal power unit is characterized in that: it includes a plant power unit 1; an energy storage unit 2; and a power transmission unit 3. The energy storage unit 2 is connected to the factory power unit 1 through the outlet circuit breaker 2-1 of the energy storage unit; the power transmitted from the 6kV factory busbar 1B section 1-2 in the factory power unit 1 to the energy storage unit 2 The information is sent to the generator outlet power transmitter 3-1 in the power transmission unit 3, and the difference with the collected generator output power is sent to the RTU device as the actual output of the unit.

[0025] The plant power unit 1 includes the high plant transformer 1-1, the ...

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Abstract

The invention discloses a thermal power generating unit primary frequency modulation system with an energy storage device with a controllable load. The thermal power generating unit primary frequencymodulation system comprises a plant electricity consumption unit (1), an energy storage unit (2) and a power transmission unit (3), wherein the energy storage unit (2) is connected to the plant electricity consumption unit (1) through an energy storage unit outlet circuit breaker (2-1); power information transmitted to the energy storage unit (2) by a 6kV station bus 1B section (1-2) in the plantelectricity consumption unit (1) is sent to a generator outlet power transmitter (3-1) in the power transmission unit (3), and the difference between the power information and collected generator output power is taken as unit actual output to be sent to an RTU device. The primary frequency modulation performance of a thermal power generating unit can be met, and the original thermal power generating unit is slightly changed.

Description

technical field [0001] The invention belongs to the technical field of thermal power generation, in particular to an energy storage device with a controllable load participating in a primary frequency regulation system of a thermal power unit. Background technique [0002] In domestic thermal power plants, due to the influence of objective factors such as the fluctuation of power supply coal quality and the low accuracy of on-line measurement of the air-powder system, the control system cannot ensure the stability of the parameters of the unit when the load rate is raised and lowered quickly, and at the same time, the coal consumption and the coal consumption of the unit are aggravated. wear. Although the high-voltage gate throttling technology and multi-variable collaborative optimization system currently adopted can greatly improve the unit's rapid adjustment capability while taking into account the unit's operational stability and long-term energy-saving benefits, the act...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/28H02J3/24
CPCH02J3/28H02J3/241
Inventor 兀鹏越杨沛豪寇水潮孙钢虎马晋辉柴琦王小辉高峰薛磊贺婷常东锋王伟姜宁
Owner XIAN THERMAL POWER RES INST CO LTD
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