回复【131楼】chenyuqiu 小陈
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你的曲线表跨度太大,小一点好,大负载,大惯量时电机跑的吃力,效率也不好。
我试下来好一点的曲线表是像下图的:
(原文件名:111.JPG)
把曲线表也放给大家,250~3500Hz的,对应 2 细分使用,差不多好用了,用的AVR,比较器方波就可以了,每步直接改,不用像PLC那样每个频率再走几拍,所以加速很快,也很有力:)
曲线表=
{
32000,27352,21959,17755,14987,13241,12003,11065,10321, 9711,/*10*/
9200, 8762, 8383, 8049, 7753, 7488, 7248, 7031, 6832, 6649,/*20*/
6480, 6324, 6179, 6043, 5917, 5798, 5686, 5580, 5480, 5386,/*30*/
5296, 5211, 5129, 5052, 4978, 4907, 4840, 4775, 4712, 4653,/*40*/
4595, 4540, 4486, 4435, 4385, 4337, 4291, 4246, 4203, 4161,/*50*/
4120, 4080, 4042, 4005, 3969, 3933, 3899, 3866, 3834, 3802,/*60*/
3771, 3741, 3712, 3684, 3656, 3629, 3602, 3576, 3551, 3526,/*70*/
3502, 3478, 3455, 3432, 3410, 3388, 3367, 3346, 3326, 3306,/*80*/
3286, 3267, 3248, 3229, 3211, 3193, 3176, 3159, 3142, 3125,/*90*/
3109, 3093, 3077, 3061, 3046, 3031, 3016, 3002, 2988, 2974,/*100*/
2960, 2946, 2933, 2919, 2906, 2894, 2881, 2869, 2856, 2844,/*110*/
2832, 2821, 2809, 2798, 2786, 2775, 2764, 2754, 2743, 2733,/*120*/
2722, 2712, 2702, 2692, 2682, 2672, 2663, 2653, 2644, 2635,/*130*/
2626, 2617, 2608, 2599, 2591, 2582, 2574, 2565, 2557, 2549,/*140*/
2541, 2533, 2525, 2517, 2509, 2502, 2494, 2487, 2479, 2472,/*150*/
2465, 2458, 2451, 2444, 2437, 2430, 2423, 2417, 2410, 2403,/*160*/
2397, 2391, 2384, 2378, 2372, 2366, 2360, 2354, 2348, 2342,/*170*/
2336, 2330, 2324, 2319, 2313, 2307, 2302, 2296, 2291, 2286,/*180*/
} |