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# 飞轮储能装置性能测试 |《储能科学与技术》论文

## 飞轮储能装置性能测试

1.平高集团有限公司，河南 平顶山 467001

2.北京泓慧国际能源技术发展有限公司，北京 101300

## Performance test of flywheel energy storage device

ZHANG Xing,1, RUAN Peng1, ZHANG Liuli1, TIAN Gangling1, ZHU Baohong2

1.Pinggao Group Co. Ltd. , Pingdingshan 467001, Henan, China

2.Beijing Honghui International Energy Technology Development Co. Ltd. , Beijing 101300, China

“碳达峰”和“碳中和”的战略目标越来越受到关注，飞轮储能作为一种物理储能方式，因其功率密度大，响应时间短，寿命长等特点正得到逐步推广，而效率是产业化推广的重要前提之一。利用电能测量方法对500 kW、100 kW·h飞轮储能系统的充放电效率进行测量。飞轮储能系统充放电循环的升速、降速范围为4000～6000～4000 r/min。实验中测得系统充放电循环效率为83.23%，电机电动发电循环效率90.49%，变流器充放电转换效率92%。试验分析表明，电机效率提高到97%，变流器效率保证98%，系统充放电循环效率可以提高到87%以上。

Abstract

The strategic goals of "carbon peak" and "carbon neutral" are getting more and more attention. Flywheel energy storage, as a physical energy storage method, is being gradually promoted because of its high power density, short response time, long life and other characteristics, and efficiency is one of the important preconditions for industrialization promotion. The charging and discharging efficiency of a 500 kW/100 kW·h flywheel energy storage system was measured using the electric energy measurement method. The charging and discharging cycle of the flywheel energy storage system ranged from 4000 to 6000 to 4000 r/min. In the experiment, the system's charge-discharge cycle efficiency was 83.23%. The motor's electrically generated cycle efficiency was 90.49%. The charge-discharge conversion efficiency of the converter was 92%. The test results showed that the motor's efficiency could increase to 97%, the efficiency of the converter could be 98%, and the efficiency of the charge-discharge cycle could increase to above 87%.

Keywords： flywheel energy storage system ; electric energy measurement ; charging and discharging efficiency

ZHANG Xing. Performance test of flywheel energy storage device[J]. Energy Storage Science and Technology, 2021, 10(5): 1674-1678

## 1 试验部分

### 图1

Fig. 1   Flywheel motor system

### 图2

Fig. 2   Schematic diagram of flywheel energy storage device

#### （1）　循环效率

${\eta }_{\mathrm{G}}={E}_{\mathrm{d}}/{E}_{\mathrm{c}}$
(1)

${\eta }_{\mathrm{D}}={E}_{\mathrm{d}}^{\text{'}}/{E}_{\mathrm{c}}^{\text{'}}$
(2)

${\eta }_{\mathrm{M}}={E}_{\mathrm{d}}^{″}/{E}_{\mathrm{c}}^{″}$
(3)

#### （2）　转换效率

${\eta }_{\mathrm{c}}={P}_{\mathrm{D}}/{P}_{\mathrm{G}}$
(4)

${\eta }_{\mathrm{d}}={P}_{\mathrm{D}}^{\text{'}}/{P}_{\mathrm{G}}^{\text{'}}$
(5)

${\eta }_{\mathrm{c}}^{\text{'}}={P}_{\mathrm{M}}/{P}_{\mathrm{D}}$
(6)

${\eta }_{\mathrm{d}}^{\text{'}}={P}_{\mathrm{D}}^{\text{'}}/{P}_{\mathrm{M}}^{\text{'}}$
(7)

#### （3）　电机电动效率和发电效率

${\eta }_{\mathrm{c}}^{″}={E}_{\mathrm{m}}/{E}_{\mathrm{c}}^{″}$
(8)

${\eta }_{\mathrm{d}}^{″}={E}_{\mathrm{d}}^{″}/{E}_{\mathrm{m}}$
(9)

## 2 试验结果

### 2.1　循环效率的测量结果

Table 1   Circulation efficiency of grid side flywheel energy storage device

Table 2   Circulation efficiency of DC side flywheel energy storage device

Table 3   Circulation efficiency of motor side flywheel energy storage device

$\mathrm{1}-\left({\eta }_{\mathrm{G}}/{\eta }_{\mathrm{D}}\right)=\mathrm{3.8}\mathrm{%}$
(10)

$\mathrm{1}-\left({\eta }_{\mathrm{D}}/{\eta }_{\mathrm{M}}\right)=\mathrm{4.4}\mathrm{%}$
(11)

### 2.2　转换效率的测量结果

Table 4   Conversion efficiency of converter on grid side

Table 5   Conversion efficiency of the side converter

### 2.3　电机电动效率和发电效率的测量结果

${E}_{\mathrm{m}}=\mathrm{1}}{\mathrm{2}}J\left({\omega }_{\mathrm{t}}^{\mathrm{2}}-{\omega }_{\mathrm{0}}^{\mathrm{2}}\right)$
(12)
${E}_{\mathrm{m}}=E\left({\omega }_{\mathrm{t}}^{\mathrm{2}}-{\omega }_{\mathrm{0}}^{\mathrm{2}}\right)/{\omega }^{\mathrm{2}}$
(13)
$\begin{array}{l}{E}_{\mathrm{m}}=\mathrm{50.621}×\left({\mathrm{5000}}^{\mathrm{2}}-{\mathrm{4000}}^{\mathrm{2}}\right)/{\mathrm{7200}}^{\mathrm{2}}\left(\mathrm{k}\mathrm{W}\cdot \mathrm{h}\right)\\ =\mathrm{8.79}\left(\mathrm{k}\mathrm{W}\cdot \mathrm{h}\right)\end{array}$
(14)

(15)

(16)

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